string matching - Page 807

model binding of non-sequential arrays

- by user281180

I am having a table in which i`m dynamically creating and deleting rows. How can I change the code such that the rows be added and deleted and the model info property filled accordingly. Bearing in mind that the rows can be dynamically created and deleted, I may have Info[0], Inf0[3], info[4]... My objective is to be able to bind the array even if it`s not in sequence. Model public class Person { public int[] Size { get; set; } public string[] Name { get; set; } public Info[]info { get; set; } } public class Info { public string Address { get; set; } public string Tel { get; set; } View <script type="text/javascript" language="javascript"> $(function () { var count = 1; $('#AddSize').live('click', function () { $("#divSize").append('</br><input type="text" id="Size" name="Size" value=""/><input type = "button" id="AddSize" value="Add"/>'); }); $('#AddName').live('click', function () { $("#divName").append('</br><input type="text" id="Name" name="Name" value=""/><input type = "button" id="AddName" value="Add"/>'); }); $('#AddRow').live('click', function () { $('#details').append('<tr><td>Address</td><td> <input type="text" name="Info[' + count + '].Address"/></td><td>Tel</td><td><input type="text" name="Info[' + count++ + '].Tel"/></td> <td><input type="button" id="AddRow" value="Add"/> </td></tr>'); }); }); </script> </head> <body> <form id="closeForm" action="<%=Url.Action("Create",new{Action="Create"}) %>" method="post" enctype="multipart/form-data"> <div id="divSize"> <input type="text" name="Size" value=""/> <input type="button" value="Add" id="AddSize" /> </div> <div id="divName"> <input type="text" name="Name" value=""/> <input type="button" value="Add" id="AddName" /> </div> <div id="Tab"> <table id="details"> <tr><td>Address</td><td> <input type="text" name="Info[0].Address"/></td><td>Tel</td><td><input type="text" name="Info[0].Tel"/></td> <td><input type="button" id="AddRow" value="Add"/> </td></tr> </table> </div> <input type="submit" value="Submit" /> </form> </body> } Controller public ActionResult Create(Person person) { return new EmptyResult(); }

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Serious problem with WCF, GridViews, Callbacks and ExecuteReaders exceptions.

- by barjed

Hi, I have this problem that is driving me insane. I have a project to deliver before Thursday. Basically an app consiting of three components that communicate with each other in WCF. I have one console app and one Windows Forms app. The console app is a server that's connected to the database. You can add records to it via the Windows Forms client that connectes with the server through the WCF. The code for the client: namespace BankAdministratorClient { [CallbackBehavior(ConcurrencyMode = ConcurrencyMode.Single, UseSynchronizationContext = false)] public partial class Form1 : Form, BankServverReference.BankServerCallback { private BankServverReference.BankServerClient server = null; private SynchronizationContext interfaceContext = null; public Form1() { InitializeComponent(); interfaceContext = SynchronizationContext.Current; server = new BankServverReference.BankServerClient(new InstanceContext(this), "TcpBinding"); server.Open(); server.Subscribe(); refreshGridView(""); } public void refreshClients(string s) { SendOrPostCallback callback = delegate(object state) { refreshGridView(s); }; interfaceContext.Post(callback, s); } public void refreshGridView(string s) { try { userGrid.DataSource = server.refreshDatabaseConnection().Tables[0]; } catch (Exception ex) { MessageBox.Show(ex.ToString()); } } private void buttonAdd_Click(object sender, EventArgs e) { server.addNewAccount(Int32.Parse(inputPIN.Text), Int32.Parse(inputBalance.Text)); } private void Form1_FormClosing(object sender, FormClosingEventArgs e) { try { server.Unsubscribe(); server.Close(); }catch{} } } } The code for the server: namespace SSRfinal_tcp { class Program { static void Main(string[] args) { Console.WriteLine(MessageHandler.dataStamp("The server is starting up")); using (ServiceHost server = new ServiceHost(typeof(BankServer))) { server.Open(); Console.WriteLine(MessageHandler.dataStamp("The server is running")); Console.ReadKey(); } } } [ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Single, InstanceContextMode = InstanceContextMode.PerCall, IncludeExceptionDetailInFaults = true)] public class BankServer : IBankServerService { private static DatabaseLINQConnectionDataContext database = new DatabaseLINQConnectionDataContext(); private static List<IBankServerServiceCallback> subscribers = new List<IBankServerServiceCallback>(); public void Subscribe() { try { IBankServerServiceCallback callback = OperationContext.Current.GetCallbackChannel<IBankServerServiceCallback>(); if (!subscribers.Contains(callback)) subscribers.Add(callback); Console.WriteLine(MessageHandler.dataStamp("A new Bank Administrator has connected")); } catch { Console.WriteLine(MessageHandler.dataStamp("A Bank Administrator has failed to connect")); } } public void Unsubscribe() { try { IBankServerServiceCallback callback = OperationContext.Current.GetCallbackChannel<IBankServerServiceCallback>(); if (subscribers.Contains(callback)) subscribers.Remove(callback); Console.WriteLine(MessageHandler.dataStamp("A Bank Administrator has been signed out from the connection list")); } catch { Console.WriteLine(MessageHandler.dataStamp("A Bank Administrator has failed to sign out from the connection list")); } } public DataSet refreshDatabaseConnection() { var q = from a in database.GetTable<Account>() select a; DataTable dt = q.toTable(rec => new object[] { q }); DataSet data = new DataSet(); data.Tables.Add(dt); Console.WriteLine(MessageHandler.dataStamp("A Bank Administrator has requested a database data listing refresh")); return data; } public void addNewAccount(int pin, int balance) { Account acc = new Account() { PIN = pin, Balance = balance, IsApproved = false }; database.Accounts.InsertOnSubmit(acc); database.SubmitChanges(); database.addNewAccount(pin, balance, false); subscribers.ForEach(delegate(IBankServerServiceCallback callback) { callback.refreshClients("New operation is pending approval."); }); } } } This is really simple and it works for a single window. However, when you open multiple instances of the client window and try to add a new record, the windows that is performing the insert operation crashes with the ExecuteReader error and the " requires an open and available connection. the connection's current state is connecting" bla bla stuff. I have no idea what's going on. Please advise.

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compareTo() method java is acting weird

- by Ron Paul

hi im having trouble getting this to work im getting an error here with my object comparison...how could I cast the inches to a string ( i never used compare to with anything other than strings) , or use comparison operators to compare the intigers, Object comparison = this.inches.compareTo(obj.inches); here is my code so far import java.io.*; import java.util.*; import java.lang.Integer; import java.lang.reflect.Array; public class Distance implements Comparable<Distance> { private static final String HashCodeUtil = null; private int feet; private int inches; private final int DEFAULT_FT = 1; private final int DEFAULT_IN = 1; public Distance(){ feet = DEFAULT_FT; inches = DEFAULT_IN; } public Distance(int ft, int in){ feet = ft; inches = in; } public void setFeet(int ft){ try { if(ft<0){ throw new CustomException("Distance is not negative"); } } catch(CustomException c){ System.err.println(c); feet =ft; } } public int getFeet(){ return feet; } public void setInches(int in){ try { if (in<0) throw new CustomException("Distance is not negative"); //inches = in; } catch(CustomException c) { System.err.println(c); inches = in; } } public int getInches(){ return inches; } public String toString (){ return "<" + feet + ":" + inches + ">"; } public Distance add(Distance m){ Distance n = new Distance(); n.inches = this.inches + m.inches; n.feet = this.feet + m.feet; while(n.inches>12){ n.inches = n.inches - 12; n.feet++; } return n; } public Distance subtract(Distance f){ Distance m = new Distance(); m.inches = this.inches - f.inches; m.feet = this.feet - f.feet; while(m.inches<0){ m.inches = m.inches - 12; feet--; } return m; } @Override public int compareTo(Distance obj) { // TODO Auto-generated method stub final int BEFORE = -1; final int EQUAL = 0; final int AFTER = 1; if (this == obj) return EQUAL; if(this.DEFAULT_IN < obj.DEFAULT_FT) return BEFORE; if(this.DEFAULT_IN > obj.DEFAULT_FT) return AFTER; Object comparison = this.inches.compareTo(obj.inches); if (this.inches == obj.inches) return compareTo(null); assert this.equals(obj) : "compareTo inconsistent with equals"; return EQUAL; } @Override public boolean equals( Object obj){ if (obj != null) return false; if (!(obj intanceof Distance)) return false; Distance that = (Distance)obj; ( this.feet == that.feet && this.inches == that.inches); return true; else return false; } @Override public int hashCode(int, int) { int result = HashCodeUtil.inches; result = HashCodeUtil.hash(result, inches ); result = HashCodeUtil.hash(result, feet); ruturn result; }

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SOAP and NHibernate Session in C#

- by Anonymous Coward

In a set of SOAP web services the user is authenticated with custom SOAP header (username/password). Each time the user call a WS the following Auth method is called to authenticate and retrieve User object from NHibernate session: [...] public Services : Base { private User user; [...] public string myWS(string username, string password) { if( Auth(username, password) ) { [...] } } } public Base : WebService { protected static ISessionFactory sesFactory; protected static ISession session; static Base { Configuration conf = new Configuration(); [...] sesFactory = conf.BuildSessionFactory(); } private bool Auth(...) { session = sesFactory.OpenSession(); MembershipUser user = null; if (UserCredentials != null && Membership.ValidateUser(username, password)) { luser = Membership.GetUser(username); } ... try { user = (User)session.Get(typeof(User), luser.ProviderUserKey.ToString()); } catch { user = null; throw new [...] } return user != null; } } When the WS work is done the session is cleaned up nicely and everything works: the WSs create, modify and change objects and Nhibernate save them in the DB. The problems come when an user (same username/password) calls the same WS at same time from different clients (machines). The state of the saved objects are inconsistent. How do I manage the session correctly to avoid this? I searched and the documentation about Session management in NHibernate is really vast. Should I Lock over user object? Should I set up a "session share" management between WS calls from same user? Should I use Transaction in some savvy way? Thanks Update1 Yes, mSession is 'session'. Update2 Even with a non-static session object the data saved in the DB are inconsistent. The pattern I use to insert/save object is the following: var return_value = [...]; try { using(ITransaction tx = session.Transaction) { tx.Begin(); MyType obj = new MyType(); user.field = user.field - obj.field; // The fields names are i.e. but this is actually what happens. session.Save(user); session.Save(obj); tx.Commit(); return_value = obj.another_field; } } catch ([...]) { // Handling exceptions... } finally { // Clean up session.Flush(); session.Close(); } return return_value; All new objects (MyType) are correctly saved but the user.field status is not as I would expect. Even obj.another_field is correct (the field is an ID with generated=on-save policy). It is like 'user.field = user.field - obj.field;' is executed more times then necessary.

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Java saying XML Document Not Well Formed

- by Pyroclastic

Hey all. Java's XML parser seems to be thinking that my XML document is not well formed following the root element, but I've validated it with several tools and they all disagree. It's probably an error in my code rather than in the document itself, I'd really appreciate any help you all could offer me. Here is my Java method: private void loadFromXMLFile(File f) throws ParserConfigurationException, IOException, SAXException { File file = f; DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db; Document doc = null; db = dbf.newDocumentBuilder(); doc = db.parse(file); doc.getDocumentElement().normalize(); String desc = ""; String due = ""; String comment = ""; NodeList tasksList = doc.getElementsByTagName("task"); for (int i = 0; i < tasksList.getLength(); i++) { NodeList attributes = tasksList.item(i).getChildNodes(); for (int j = 0; i < attributes.getLength(); j++) { Node attribute = attributes.item(i); if (attribute.getNodeName() == "description") { desc = attribute.getTextContent(); } if (attribute.getNodeName() == "due") { due = attribute.getTextContent(); } if (attribute.getNodeName() == "comment") { comment = attribute.getTextContent(); } tasks.add(new Task(desc, due, comment)); } desc = ""; due = ""; comment = ""; } } And here is the XML file I'm trying to load: <?xml version="1.0"?> <tasklist> <task> <description>Task 1</description> <due>Due date 1</due> <comment>Comment 1</comment> <completed>false</completed> </task> <task> <description>Task 2</description> <due>Due date 2</due> <comment>Comment 2</comment> <completed>false</completed> </task> <task> <description>Task 3</description> <due>Due date 3</due> <comment>Comment 3</comment> <completed>true</completed> </task> </tasklist> And here is the error message java is throwing for me: run: [Fatal Error] tasks.xml:28:3: The markup in the document following the root element must be well-formed. May 17, 2010 6:07:02 PM todolist.TodoListGUI SEVERE: null org.xml.sax.SAXParseException: The markup in the document following the root element must be well-formed. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:239) at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:283) at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:208) at todolist.TodoListGUI.loadFromXMLFile(TodoListGUI.java:199) at todolist.TodoListGUI.(TodoListGUI.java:42) at todolist.Main.main(Main.java:25) BUILD SUCCESSFUL (total time: 19 seconds) For reference TodoListGUI.java:199 is doc = db.parse(file); If context is helpful to anyone here, I'm trying to write a simple GUI application to manage a todo list that can read and write to and from XML files defining the tasks. Any advice is appreciated!

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Get backreferences values and modificate these values

- by roasted

Could you please explain why im not able to get values of backreferences from a matched regex result and apply it some modification before effective replacement? The expected result is replacing for example string ".coord('X','Y')" by "X * Y". But if X to some value, divide this value by 2 and then use this new value in replacement. Here the code im currently testing: See /*>>1<<*/ & /*>>2<<*/ & /*>>3<<*/, this is where im stuck! I would like to be able to apply modification on backrefrences before replacement depending of backreferences values. Difference between /*>>2<<*/ & /*>>3<<*/ is just the self call anonymous function param The method /*>>2<<*/ is the expected working solution as i can understand it. But strangely, the replacement is not working correctly, replacing by alias $1 * $2 and not by value...? You can test the jsfiddle //string to test ".coord('125','255')" //array of regex pattern and replacement //just one for the example //for this example, pattern matching alphanumerics is not necessary (only decimal in coord) but keep it as it var regexes = [ //FORMAT is array of [PATTERN,REPLACEMENT] /*.coord("X","Y")*/ [/\.coord$['"]([\w]+)['"],['"]?([\w:\.\\]+)['"]?$/g, '$1 * $2'] ]; function testReg(inputText, $output) { //using regex for (var i = 0; i < regexes.length; i++) { /*==>**1**/ //this one works as usual but dont let me get backreferences values $output.val(inputText.replace(regexes[i][0], regexes[i][2])); /*==>**2**/ //this one should works as i understand it $output.val(inputText.replace(regexes[i][0], function(match, $1, $2, $3, $4) { $1 = checkReplace(match, $1, $2, $3, $4); //here want using $1 modified value in replacement return regexes[i][3]; })); /*==>**3**/ //this one is just a test by self call anonymous function $output.val(inputText.replace(regexes[i][0], function(match, $1, $2, $3, $4) { $1 = checkReplace(match, $1, $2, $3, $4); //here want using $1 modified value in replacement return regexes[i][4]; }())); inputText = $output.val(); } } function checkReplace(match, $1, $2, $3, $4) { console.log(match + ':::' + $1 + ':::' + $2 + ':::' + $3 + ':::' + $4); //HERE i should be able if lets say $1 > 200 divide it by 2 //then returning $1 value if($1 > 200) $1 = parseInt($1 / 2); return $1; }? Sure I'm missing something, but cannot get it! Thanks for your help, regards. EDIT WORKING METHOD: Finally get it, as mentionned by Eric: The key thing is that the function returns the literal text to substitute, not a string which is parsed for backreferences.?? JSFIDDLE So complete working code: (please note as pattern replacement will change for each matched pattern and optimisation of speed code is not an issue here, i will keep it like that) $('#btn').click(function() { testReg($('#input').val(), $('#output')); }); //array of regex pattern and replacement //just one for the example var regexes = [ //FORMAT is array of [PATTERN,REPLACEMENT] /*.coord("X","Y")*/ [/\.coord$['"]([\w]+)['"],['"]?([\w:\.\\]+)['"]?$/g, '$1 * $2'] ]; function testReg(inputText, $output) { //using regex for (var i = 0; i < regexes.length; i++) { $output.val(inputText.replace(regexes[i][0], function(match, $1, $2, $3, $4) { var checkedValues = checkReplace(match, $1, $2, $3, $4); $1 = checkedValues[0]; $2 = checkedValues[1]; regexes[i][1] = regexes[i][1].replace('$1', $1).replace('$2', $2); return regexes[i][1]; })); inputText = $output.val(); } } function checkReplace(match, $1, $2, $3, $4) { console.log(match + ':::' + $1 + ':::' + $2 + ':::' + $3 + ':::' + $4); if ($1 > 200) $1 = parseInt($1 / 2); if ($2 > 200) $2 = parseInt($2 / 2); return [$1,$2]; }

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Error: '<method1>' and '<method2>' cannot overload each other

- by serhio

I override a list in VB. In C# the code compiles and looks like this: class MyObjectCollection : IList { ... /// <summary> /// Gets or sets the element at the specified index. /// </summary> public MyObject this[int index] { get { return (MyObject)innerArray[index]; } set { innerArray[index] = value; } } ... } in VB.NET I transform: Class MyObjectCollection Implements IList ... ''' <summary> ' ''' Gets or sets the element at the specified index. ' ''' </summary> ' Default Public Overrides Property Item(ByVal index As Integer) As MyObject Get Return DirectCast(innerArray(index), MyObject) End Get Set(ByVal value As MyObject) innerArray(index) = value End Set End Property ... End Class Error: 'Public Overrides Default Property Item(index As Integer) As MyObject' and 'Public Default Property Item(index As Integer) As Object' cannot overload each other because they differ only by return types Whole collection class in C# public class MyObjectCollection : IList { private ArrayList innerArray; public MyObjectCollection() { innerArray = new ArrayList(); } public int Count { get { return innerArray.Count; } } public bool IsFixedSize { get { return false; } } public bool IsReadOnly { get { return false; } } public bool IsSynchronized { get { return false; } } object ICollection.SyncRoot { get { return null; } } public MyObject this[int index] { get { return (MyObject)innerArray[index]; } set { innerArray[index] = value; } } public int Add(MyObject value) { int index = innerArray.Add(value); return index; } public void AddRange(MyObject[] array) { innerArray.AddRange(array); } public void Clear() { innerArray.Clear(); } public bool Contains(MyObject item) { return innerArray.Contains(item); } public bool Contains(string name) { foreach (MyObject spec in innerArray) if (spec.Name == name) return true; return false; } public void CopyTo(MyObject[] array) { innerArray.CopyTo(array); } public void CopyTo(MyObject[] array, int index) { innerArray.CopyTo(array, index); } public IEnumerator GetEnumerator() { return innerArray.GetEnumerator(); } public int IndexOf(MyObject value) { return innerArray.IndexOf(value); } public int IndexOf(string name) { int i = 0; foreach (MyObject spec in innerArray) { if (spec.Name == name) return i; i++; } return -1; } public void Insert(int index, MyObject value) { innerArray.Insert(index, value); } public void Remove(MyObject obj) { innerArray.Remove(obj); } public void Remove(string name) { int index = IndexOf(name); RemoveAt(index); } public void RemoveAt(int index) { innerArray.RemoveAt(index); } public MyObject[] ToArray() { return (MyObject[])innerArray.ToArray(typeof(MyObject)); } #region Explicit interface implementations for ICollection and IList void ICollection.CopyTo(Array array, int index) { CopyTo((MyObject[])array, index); } int IList.Add(object value) { return Add((MyObject)value); } bool IList.Contains(object obj) { return Contains((MyObject)obj); } object IList.this[int index] { get { return ((MyObjectCollection)this)[index]; } set { ((MyObjectCollection)this)[index] = (MyObject)value; } } int IList.IndexOf(object obj) { return IndexOf((MyObject)obj); } void IList.Insert(int index, object value) { Insert(index, (MyObject)value); } void IList.Remove(object value) { Remove((MyObject)value); } #endregion }

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linked list problem (with insert)

- by JohnWong

The problem appears with the insert function that I wrote. 3 conditions must work, I tested b/w 1 and 2, b/w 2 and 3 and as last element, they worked. But b/w 3 and 4, it did not work. It only display up to the new added record, and did not show the fourth element. Efficiency is not my concern here (not yet). Please guide me through this debug process. Thank you very much. #include<iostream> #include<string> using namespace std; struct List // we create a structure called List { string name; string tele; List *nextAddr; }; void populate(List *); void display(List *); void insert(List *); int main() { const int MAXINPUT = 3; char ans; List * data, * current, * point; // create two pointers data = new List; current = data; for (int i = 0; i < (MAXINPUT - 1); i++) { populate(current); current->nextAddr = new List; current = current->nextAddr; } // last record we want to do it sepeartely populate(current); current->nextAddr = NULL; cout << "The current list consists of the following data records: " << endl; display(data); // now ask whether user wants to insert new record or not cout << "Do you want to add a new record (Y/N)?"; cin >> ans; if (ans == 'Y' || ans == 'y') { /* To insert b/w first and second, use point as parameter between second and third uses point->nextAddr between third and fourth uses point->nextAddr->nextAddr and insert as last element, uses current instead */ point = data; insert(()); display(data); } return 0; } void populate(List *data) { cout << "Enter a name: "; cin >> data->name; cout << "Enter a phone number: "; cin >> data->tele; return; } void display(List *content) { while (content != NULL) { cout << content->name << " " << content->tele; content = content->nextAddr; cout << endl; // we skip to next line } return; } void insert(List *last) { List * temp = last->nextAddr; //save the next address to temp last->nextAddr = new List; // now modify the address pointed to new allocation last = last->nextAddr; populate(last); last->nextAddr = temp; // now link all three together, eg 1-NEW-2 return; }

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To copy data from a webpage into an array of structs and sorted by“name” before producing the data.

- by Taylor

include include include include using namespace std; struct productJewelry { string name; double amount; int itemCode; double size; string group; }; int main() { // declare variables ifstream inFile; int count=0; int x=0; productJewelry product[50]; inFile.open("jewelry.txt"); // file must be in same folder if (inFile.fail()) cout << "failed"; cout << fixed << showpoint; // fixed format, two decimal places cout << setprecision(2); while (inFile.peek() != EOF) { // cout << count << " : "; count++; inFile product[x].itemCode; inFile product[x].name; inFile product[x].size; inFile product[x].amount; inFile product[x].group; // cout << product[x].itemCode << ", " << product[x].name << ", "<< product[x].size << ", " << product[x].amount << endl; x++; if (inFile.peek() == '\n') inFile.ignore(1, '\n'); } inFile.close(); string temp; bool swap; do { swap = false; for (int x=0; xproduct[x+1].name) { //these 3 lines are to swap elements in array temp=product[x].name; product[x].name=product[x+1].name; product[x+1].name=temp; swap=true; } } } while (swap); for (x=0; x< count; x++) { //cout<< product[x].itemCode<<" "; //cout<< product[x].name <<" "; //cout<< product[x].size <<" "; //cout<< product[x].amount<<" "; //cout<< product[x].group<<" "<<endl; } system("pause"); // to freeze Dev-c++ output screen return 0; } // end main THE FILE THAT NEEDS TO PRINT AND BE SORTED IN ALPHABETICAL ORDER 0011 Money_Clip 2.000 50.00 Other 0035 Paperweight 1.625 175.00 Other 0457 Cuff_Bracelet 2.375 150.00 Bracelet 0465 Links_Bracelet 7.125 425.00 Bracelet 0585 Key_Chain 1.325 50.00 Other 0595 Cuff_Links 0.625 525.00 Other 0935 Royale_Pendant 0.625 975.00 Pendant 1092 Bordeaux_Cross 1.625 425.00 Cross 1105 Victory_Medallion 0.875 30.00 Pendant 1111 Marquis_Cross 1.375 70.00 Cross 1160 Christina_Ring 0.500 175.00 Ring 1511 French_Clips 0.687 375.00 Other 1717 Pebble_Pendant 1.250 45.00 Pendant 1725 Folded_Pendant 1.250 45.00 Pendant 1730 Curio_Pendant 1.063 275.00 Pendant

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To copy data from a webpage into an array of structs and sorted by"name" before producing the data.

- by Taylor

include include include include using namespace std; struct productJewelry { string name; double amount; int itemCode; double size; string group; }; int main() { // declare variables ifstream inFile; int count=0; int x=0; productJewelry product[50]; inFile.open("jewelry.txt"); // file must be in same folder if (inFile.fail()) cout << "failed"; cout << fixed << showpoint; // fixed format, two decimal places cout << setprecision(2); while (inFile.peek() != EOF) { // cout << count << " : "; count++; inFile product[x].itemCode; inFile product[x].name; inFile product[x].size; inFile product[x].amount; inFile product[x].group; // cout << product[x].itemCode << ", " << product[x].name << ", "<< product[x].size << ", " << product[x].amount << endl; x++; if (inFile.peek() == '\n') inFile.ignore(1, '\n'); } inFile.close(); string temp; bool swap; do { swap = false; for (int x=0; xproduct[x+1].name) { //these 3 lines are to swap elements in array temp=product[x].name; product[x].name=product[x+1].name; product[x+1].name=temp; swap=true; } } } while (swap); for (x=0; x< count; x++) { //cout<< product[x].itemCode<<" "; //cout<< product[x].name <<" "; //cout<< product[x].size <<" "; //cout<< product[x].amount<<" "; //cout<< product[x].group<<" "<<endl; } system("pause"); // to freeze Dev-c++ output screen return 0; } // end main

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IPsec tunnel to Android device not created even though there is an IKE SA

- by Quentin Swain

I'm trying to configure a VPN tunnel between an Android device running 4.1 and a Fedora 17 Linux box running strongSwan 5.0. The device reports that it is connected and strongSwan statusall returns that there is an IKE SA, but doesn't display a tunnel. I used the instructions for iOS in the wiki to generate certificates and configure strongSwan. Since Android uses a modified version of racoon this should work and since the connection is partly established I think I am on the right track. I don't see any errors about not being able to create the tunnel. This is the configuration for the strongSwan connection conn android2 keyexchange=ikev1 authby=xauthrsasig xauth=server left=96.244.142.28 leftsubnet=0.0.0.0/0 leftfirewall=yes leftcert=serverCert.pem right=%any rightsubnet=10.0.0.0/24 rightsourceip=10.0.0.2 rightcert=clientCert.pem ike=aes256-sha1-modp1024 auto=add This is the output of strongswan statusall Status of IKE charon daemon (strongSwan 5.0.0, Linux 3.3.4-5.fc17.x86_64, x86_64): uptime: 20 minutes, since Oct 31 10:27:31 2012 malloc: sbrk 270336, mmap 0, used 198144, free 72192 worker threads: 8 of 16 idle, 7/1/0/0 working, job queue: 0/0/0/0, scheduled: 7 loaded plugins: charon aes des sha1 sha2 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs8 pgp dnskey pem openssl fips-prf gmp xcbc cmac hmac attr kernel-netlink resolve socket-default stroke updown xauth-generic Virtual IP pools (size/online/offline): android-hybrid: 1/0/0 android2: 1/1/0 Listening IP addresses: 96.244.142.28 Connections: android-hybrid: %any...%any IKEv1 android-hybrid: local: [C=CH, O=strongSwan, CN=vpn.strongswan.org] uses public key authentication android-hybrid: cert: "C=CH, O=strongSwan, CN=vpn.strongswan.org" android-hybrid: remote: [%any] uses XAuth authentication: any android-hybrid: child: dynamic === dynamic TUNNEL android2: 96.244.142.28...%any IKEv1 android2: local: [C=CH, O=strongSwan, CN=vpn.strongswan.org] uses public key authentication android2: cert: "C=CH, O=strongSwan, CN=vpn.strongswan.org" android2: remote: [C=CH, O=strongSwan, CN=client] uses public key authentication android2: cert: "C=CH, O=strongSwan, CN=client" android2: remote: [%any] uses XAuth authentication: any android2: child: 0.0.0.0/0 === 10.0.0.0/24 TUNNEL Security Associations (1 up, 0 connecting): android2[3]: ESTABLISHED 10 seconds ago, 96.244.142.28[C=CH, O=strongSwan, CN=vpn.strongswan.org]...208.54.35.241[C=CH, O=strongSwan, CN=client] android2[3]: Remote XAuth identity: android android2[3]: IKEv1 SPIs: 4151e371ad46b20d_i 59a56390d74792d2_r*, public key reauthentication in 56 minutes android2[3]: IKE proposal: AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 The output of ip -s xfrm policy src ::/0 dst ::/0 uid 0 socket in action allow index 3851 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src ::/0 dst ::/0 uid 0 socket out action allow index 3844 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src ::/0 dst ::/0 uid 0 socket in action allow index 3835 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src ::/0 dst ::/0 uid 0 socket out action allow index 3828 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket in action allow index 3819 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:39 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket out action allow index 3812 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:22 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket in action allow index 3803 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:20 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket out action allow index 3796 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:20 So a xfrm policy isn't being created for the connection, even though there is an SA between device and strongswan. Executing ip -s xfrm policy on the android device results in the following output: src 0.0.0.0/0 dst 10.0.0.2/32 uid 0 dir in action allow index 40 priority 2147483648 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:08 use - tmpl src 96.244.142.28 dst 25.239.33.30 proto esp spi 0x00000000(0) reqid 0(0x00000000) mode tunnel level required share any enc-mask 00000000 auth-mask 00000000 comp-mask 00000000 src 10.0.0.2/32 dst 0.0.0.0/0 uid 0 dir out action allow index 33 priority 2147483648 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:08 use - tmpl src 25.239.33.30 dst 96.244.142.28 proto esp spi 0x00000000(0) reqid 0(0x00000000) mode tunnel level required share any enc-mask 00000000 auth-mask 00000000 comp-mask 00000000 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 4 action allow index 28 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:08 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 3 action allow index 19 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:08 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 4 action allow index 12 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:06 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 3 action allow index 3 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:07 Logs from charon: 00[DMN] Starting IKE charon daemon (strongSwan 5.0.0, Linux 3.3.4-5.fc17.x86_64, x86_64) 00[KNL] listening on interfaces: 00[KNL] em1 00[KNL] 96.244.142.28 00[KNL] fe80::224:e8ff:fed2:18b2 00[CFG] loading ca certificates from '/etc/strongswan/ipsec.d/cacerts' 00[CFG] loaded ca certificate "C=CH, O=strongSwan, CN=strongSwan CA" from '/etc/strongswan/ipsec.d/cacerts/caCert.pem' 00[CFG] loading aa certificates from '/etc/strongswan/ipsec.d/aacerts' 00[CFG] loading ocsp signer certificates from '/etc/strongswan/ipsec.d/ocspcerts' 00[CFG] loading attribute certificates from '/etc/strongswan/ipsec.d/acerts' 00[CFG] loading crls from '/etc/strongswan/ipsec.d/crls' 00[CFG] loading secrets from '/etc/strongswan/ipsec.secrets' 00[CFG] loaded RSA private key from '/etc/strongswan/ipsec.d/private/clientKey.pem' 00[CFG] loaded IKE secret for %any 00[CFG] loaded EAP secret for android 00[CFG] loaded EAP secret for android 00[DMN] loaded plugins: charon aes des sha1 sha2 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs8 pgp dnskey pem openssl fips-prf gmp xcbc cmac hmac attr kernel-netlink resolve socket-default stroke updown xauth-generic 08[NET] waiting for data on sockets 16[LIB] created thread 16 [15338] 16[JOB] started worker thread 16 11[CFG] received stroke: add connection 'android-hybrid' 11[CFG] conn android-hybrid 11[CFG] left=%any 11[CFG] leftsubnet=(null) 11[CFG] leftsourceip=(null) 11[CFG] leftauth=pubkey 11[CFG] leftauth2=(null) 11[CFG] leftid=(null) 11[CFG] leftid2=(null) 11[CFG] leftrsakey=(null) 11[CFG] leftcert=serverCert.pem 11[CFG] leftcert2=(null) 11[CFG] leftca=(null) 11[CFG] leftca2=(null) 11[CFG] leftgroups=(null) 11[CFG] leftupdown=ipsec _updown iptables 11[CFG] right=%any 11[CFG] rightsubnet=(null) 11[CFG] rightsourceip=96.244.142.3 11[CFG] rightauth=xauth 11[CFG] rightauth2=(null) 11[CFG] rightid=%any 11[CFG] rightid2=(null) 11[CFG] rightrsakey=(null) 11[CFG] rightcert=(null) 11[CFG] rightcert2=(null) 11[CFG] rightca=(null) 11[CFG] rightca2=(null) 11[CFG] rightgroups=(null) 11[CFG] rightupdown=(null) 11[CFG] eap_identity=(null) 11[CFG] aaa_identity=(null) 11[CFG] xauth_identity=(null) 11[CFG] ike=aes256-sha1-modp1024 11[CFG] esp=aes128-sha1-modp2048,3des-sha1-modp1536 11[CFG] dpddelay=30 11[CFG] dpdtimeout=150 11[CFG] dpdaction=0 11[CFG] closeaction=0 11[CFG] mediation=no 11[CFG] mediated_by=(null) 11[CFG] me_peerid=(null) 11[CFG] keyexchange=ikev1 11[KNL] getting interface name for %any 11[KNL] %any is not a local address 11[KNL] getting interface name for %any 11[KNL] %any is not a local address 11[CFG] left nor right host is our side, assuming left=local 11[CFG] loaded certificate "C=CH, O=strongSwan, CN=vpn.strongswan.org" from 'serverCert.pem' 11[CFG] id '%any' not confirmed by certificate, defaulting to 'C=CH, O=strongSwan, CN=vpn.strongswan.org' 11[CFG] added configuration 'android-hybrid' 11[CFG] adding virtual IP address pool 'android-hybrid': 96.244.142.3/32 13[CFG] received stroke: add connection 'android2' 13[CFG] conn android2 13[CFG] left=96.244.142.28 13[CFG] leftsubnet=0.0.0.0/0 13[CFG] leftsourceip=(null) 13[CFG] leftauth=pubkey 13[CFG] leftauth2=(null) 13[CFG] leftid=(null) 13[CFG] leftid2=(null) 13[CFG] leftrsakey=(null) 13[CFG] leftcert=serverCert.pem 13[CFG] leftcert2=(null) 13[CFG] leftca=(null) 13[CFG] leftca2=(null) 13[CFG] leftgroups=(null) 13[CFG] leftupdown=ipsec _updown iptables 13[CFG] right=%any 13[CFG] rightsubnet=10.0.0.0/24 13[CFG] rightsourceip=10.0.0.2 13[CFG] rightauth=pubkey 13[CFG] rightauth2=xauth 13[CFG] rightid=(null) 13[CFG] rightid2=(null) 13[CFG] rightrsakey=(null) 13[CFG] rightcert=clientCert.pem 13[CFG] rightcert2=(null) 13[CFG] rightca=(null) 13[CFG] rightca2=(null) 13[CFG] rightgroups=(null) 13[CFG] rightupdown=(null) 13[CFG] eap_identity=(null) 13[CFG] aaa_identity=(null) 13[CFG] xauth_identity=(null) 13[CFG] ike=aes256-sha1-modp1024 13[CFG] esp=aes128-sha1-modp2048,3des-sha1-modp1536 13[CFG] dpddelay=30 13[CFG] dpdtimeout=150 13[CFG] dpdaction=0 13[CFG] closeaction=0 13[CFG] mediation=no 13[CFG] mediated_by=(null) 13[CFG] me_peerid=(null) 13[CFG] keyexchange=ikev0 13[KNL] getting interface name for %any 13[KNL] %any is not a local address 13[KNL] getting interface name for 96.244.142.28 13[KNL] 96.244.142.28 is on interface em1 13[CFG] loaded certificate "C=CH, O=strongSwan, CN=vpn.strongswan.org" from 'serverCert.pem' 13[CFG] id '96.244.142.28' not confirmed by certificate, defaulting to 'C=CH, O=strongSwan, CN=vpn.strongswan.org' 13[CFG] loaded certificate "C=CH, O=strongSwan, CN=client" from 'clientCert.pem' 13[CFG] id '%any' not confirmed by certificate, defaulting to 'C=CH, O=strongSwan, CN=client' 13[CFG] added configuration 'android2' 13[CFG] adding virtual IP address pool 'android2': 10.0.0.2/32 08[NET] received packet: from 208.54.35.241[32235] to 96.244.142.28[500] 15[CFG] looking for an ike config for 96.244.142.28...208.54.35.241 15[CFG] candidate: %any...%any, prio 2 15[CFG] candidate: 96.244.142.28...%any, prio 5 15[CFG] found matching ike config: 96.244.142.28...%any with prio 5 01[JOB] next event in 29s 999ms, waiting 15[IKE] received NAT-T (RFC 3947) vendor ID 15[IKE] received draft-ietf-ipsec-nat-t-ike-02 vendor ID 15[IKE] received draft-ietf-ipsec-nat-t-ike-02\n vendor ID 15[IKE] received draft-ietf-ipsec-nat-t-ike-00 vendor ID 15[IKE] received XAuth vendor ID 15[IKE] received Cisco Unity vendor ID 15[IKE] received DPD vendor ID 15[IKE] 208.54.35.241 is initiating a Main Mode IKE_SA 15[IKE] IKE_SA (unnamed)[1] state change: CREATED => CONNECTING 15[CFG] selecting proposal: 15[CFG] proposal matches 15[CFG] received proposals: IKE:AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:AES_CBC_256/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024, IKE:AES_CBC_128/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:AES_CBC_128/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024, IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:3DES_CBC/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024, IKE:DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:DES_CBC/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024 15[CFG] configured proposals: IKE:AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:AES_CBC_128/AES_CBC_192/AES_CBC_256/3DES_CBC/CAMELLIA_CBC_128/CAMELLIA_CBC_192/CAMELLIA_CBC_256/HMAC_MD5_96/HMAC_SHA1_96/HMAC_SHA2_256_128/HMAC_SHA2_384_192/HMAC_SHA2_512_256/AES_XCBC_96/AES_CMAC_96/PRF_HMAC_MD5/PRF_HMAC_SHA1/PRF_HMAC_SHA2_256/PRF_HMAC_SHA2_384/PRF_HMAC_SHA2_512/PRF_AES128_XCBC/PRF_AES128_CMAC/MODP_2048/MODP_2048_224/MODP_2048_256/MODP_1536/MODP_4096/MODP_8192/MODP_1024/MODP_1024_160 15[CFG] selected proposal: IKE:AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 15[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 04[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 15[MGR] checkin IKE_SA (unnamed)[1] 15[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[32235] to 96.244.142.28[500] 08[NET] waiting for data on sockets 07[MGR] checkout IKE_SA by message 07[MGR] IKE_SA (unnamed)[1] successfully checked out 07[NET] received packet: from 208.54.35.241[32235] to 96.244.142.28[500] 07[LIB] size of DH secret exponent: 1023 bits 07[IKE] remote host is behind NAT 07[IKE] sending cert request for "C=CH, O=strongSwan, CN=strongSwan CA" 07[ENC] generating NAT_D_V1 payload finished 07[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 07[MGR] checkin IKE_SA (unnamed)[1] 07[MGR] check-in of IKE_SA successful. 04[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 10[IKE] ignoring certificate request without data 10[IKE] received end entity cert "C=CH, O=strongSwan, CN=client" 10[CFG] looking for XAuthInitRSA peer configs matching 96.244.142.28...208.54.35.241[C=CH, O=strongSwan, CN=client] 10[CFG] candidate "android-hybrid", match: 1/1/2/2 (me/other/ike/version) 10[CFG] candidate "android2", match: 1/20/5/1 (me/other/ike/version) 10[CFG] selected peer config "android2" 10[CFG] certificate "C=CH, O=strongSwan, CN=client" key: 2048 bit RSA 10[CFG] using trusted ca certificate "C=CH, O=strongSwan, CN=strongSwan CA" 10[CFG] checking certificate status of "C=CH, O=strongSwan, CN=client" 10[CFG] ocsp check skipped, no ocsp found 10[CFG] certificate status is not available 10[CFG] certificate "C=CH, O=strongSwan, CN=strongSwan CA" key: 2048 bit RSA 10[CFG] reached self-signed root ca with a path length of 0 10[CFG] using trusted certificate "C=CH, O=strongSwan, CN=client" 10[IKE] authentication of 'C=CH, O=strongSwan, CN=client' with RSA successful 10[ENC] added payload of type ID_V1 to message 10[ENC] added payload of type SIGNATURE_V1 to message 10[IKE] authentication of 'C=CH, O=strongSwan, CN=vpn.strongswan.org' (myself) successful 10[IKE] queueing XAUTH task 10[IKE] sending end entity cert "C=CH, O=strongSwan, CN=vpn.strongswan.org" 10[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 10[IKE] activating new tasks 10[IKE] activating XAUTH task 10[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 01[JOB] next event in 3s 999ms, waiting 10[MGR] checkin IKE_SA android2[1] 10[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 08[NET] waiting for data on sockets 12[MGR] checkout IKE_SA by message 12[MGR] IKE_SA android2[1] successfully checked out 12[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 12[MGR] checkin IKE_SA android2[1] 12[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 16[MGR] checkout IKE_SA by message 16[MGR] IKE_SA android2[1] successfully checked out 16[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 08[NET] waiting for data on sockets 16[IKE] XAuth authentication of 'android' successful 16[IKE] reinitiating already active tasks 16[IKE] XAUTH task 16[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 16[MGR] checkin IKE_SA android2[1] 01[JOB] next event in 3s 907ms, waiting 16[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 09[MGR] checkout IKE_SA by message 09[MGR] IKE_SA android2[1] successfully checked out 09[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] .8rS 09[IKE] IKE_SA android2[1] established between 96.244.142.28[C=CH, O=strongSwan, CN=vpn.strongswan.org]...208.54.35.241[C=CH, O=strongSwan, CN=client] 09[IKE] IKE_SA android2[1] state change: CONNECTING => ESTABLISHED 09[IKE] scheduling reauthentication in 3409s 09[IKE] maximum IKE_SA lifetime 3589s 09[IKE] activating new tasks 09[IKE] nothing to initiate 09[MGR] checkin IKE_SA android2[1] 09[MGR] check-in of IKE_SA successful. 09[MGR] checkout IKE_SA 09[MGR] IKE_SA android2[1] successfully checked out 09[MGR] checkin IKE_SA android2[1] 09[MGR] check-in of IKE_SA successful. 01[JOB] next event in 3s 854ms, waiting 08[NET] waiting for data on sockets 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 14[MGR] checkout IKE_SA by message 14[MGR] IKE_SA android2[1] successfully checked out 14[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 14[IKE] processing INTERNAL_IP4_ADDRESS attribute 14[IKE] processing INTERNAL_IP4_NETMASK attribute 14[IKE] processing INTERNAL_IP4_DNS attribute 14[IKE] processing INTERNAL_IP4_NBNS attribute 14[IKE] processing UNITY_BANNER attribute 14[IKE] processing UNITY_DEF_DOMAIN attribute 14[IKE] processing UNITY_SPLITDNS_NAME attribute 14[IKE] processing UNITY_SPLIT_INCLUDE attribute 14[IKE] processing UNITY_LOCAL_LAN attribute 14[IKE] processing APPLICATION_VERSION attribute 14[IKE] peer requested virtual IP %any 14[CFG] assigning new lease to 'android' 14[IKE] assigning virtual IP 10.0.0.2 to peer 'android' 14[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 14[MGR] checkin IKE_SA android2[1] 14[MGR] check-in of IKE_SA successful. 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 08[NET] waiting for data on sockets 01[JOB] got event, queuing job for execution 01[JOB] next event in 91ms, waiting 13[MGR] checkout IKE_SA 13[MGR] IKE_SA android2[1] successfully checked out 13[MGR] checkin IKE_SA android2[1] 13[MGR] check-in of IKE_SA successful. 01[JOB] got event, queuing job for execution 01[JOB] next event in 24s 136ms, waiting 15[MGR] checkout IKE_SA 15[MGR] IKE_SA android2[1] successfully checked out 15[MGR] checkin IKE_SA android2[1] 15[MGR] check-in of IKE_SA successful.

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Thread not behaving correctly

- by ivor

Hello, I wonder if anyone can help me to understand where I could be going wrong with this code; Basically I'm working on a turorial and calling the class below from another class - and it is getting the following error; Exception in thread "Thread-1" java.lang.NullPointerException at org.newdawn.spaceinvaders.TCPChat.run(TCPChat.java:322) at java.lang.Thread.run(Unknown Source) I realise the error is beibg flagged in another class- but I have tested the other class with a small class which sets up a separate thread - and it works fine, but as soon as I try and implement a new thread in this class - it causes all sorts of problems. Am I setting up the thread correctly in this class? Basically I can set up a thread in this class, with a test loop and it's fine, but when I bring in the functionality of the rest of the game it sometimes hangs, or does not display at all. Any suggestions on where I could be going wrong would be greatly appreciated. Thanks for looking. package org.newdawn.spaceinvaders; import java.awt.BorderLayout; import java.awt.Canvas; import java.awt.Color; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Graphics2D; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.image.BufferStrategy; import java.util.ArrayList; import java.util.Scanner; import java.awt.*;//maybe not needed import javax.swing.*;//maybenot needed import java.util.Random; //import java.io.*; /** * The main hook of our game. This class with both act as a manager * for the display and central mediator for the game logic. * * Display management will consist of a loop that cycles round all * entities in the game asking them to move and then drawing them * in the appropriate place. With the help of an inner class it * will also allow the player to control the main ship. * * As a mediator it will be informed when entities within our game * detect events (e.g. alient killed, played died) and will take * appropriate game actions. * * @author Kevin Glass */ public class Game extends Canvas implements Runnable{ /** The stragey that allows us to use accelerate page flipping */ private BufferStrategy strategy; /** True if the game is currently "running", i.e. the game loop is looping */ private boolean gameRunning = true; /** The list of all the entities that exist in our game */ private ArrayList entities = new ArrayList(); /** The list of entities that need to be removed from the game this loop */ private ArrayList removeList = new ArrayList(); /** The entity representing the player */ private Entity ship; /** The speed at which the player's ship should move (pixels/sec) */ private double moveSpeed = 300; /** The time at which last fired a shot */ private long lastFire = 0; /** The interval between our players shot (ms) */ private long firingInterval = 500; /** The number of aliens left on the screen */ private int alienCount; /** The number of levels progressed */ private double levelCount; /** high score for the user */ private int highScore; /** high score for the user */ private String player = "bob"; //private GetUserInput getPlayer; /** The list of entities that need to be removed from the game this loop */ /** The message to display which waiting for a key press */ private String message = ""; /** True if we're holding up game play until a key has been pressed */ private boolean waitingForKeyPress = true; /** True if the left cursor key is currently pressed */ private boolean leftPressed = false; /** True if the right cursor key is currently pressed */ private boolean rightPressed = false; /** True if we are firing */ private boolean firePressed = false; /** True if game logic needs to be applied this loop, normally as a result of a game event */ private boolean logicRequiredThisLoop = false; //private Thread cThread = new Thread(this); //public Thread t = new Thread(this); //private Thread g = new Thread(this); void setHighscore(int setHS) { highScore = setHS; } public int getHighscore() { return highScore; } public void setPlayer(String setPlayer) { player = setPlayer; } public String getPlayer() { return player; } public void run() { //setup(); System.out.println("hello im running bob"); /*int count = 1; do { System.out.println("Count is: " + count); count++; try{Thread.sleep(1);} catch(InterruptedException e){} } while (count <= 2000000);*/ //Game g =new Game(); //Game g = this; // Start the main game loop, note: this method will not // return until the game has finished running. Hence we are // using the actual main thread to run the game. //setup(); //this.gameLoop(); //try{thread.sleep(1);} //catch{InterruptedException e} } /** * Construct our game and set it running. */ public Game () { //Thread t = new Thread(this);//set up new thread for invaders game //t.run();//run the run method of the game //Game g =new Game(); //setup(); //Thread t = new Thread(this); //thread.start(); //SwingUtilities.invokeLater(this); Thread er = new Thread(this); er.start(); } public void setup(){ //initialise highscore setHighscore(0); // create a frame to contain our game JFrame container = new JFrame("Space Invaders 101"); // get hold the content of the frame and set up the resolution of the game JPanel panel = (JPanel) container.getContentPane(); panel.setPreferredSize(new Dimension(800,600)); //panel.setLayout(null); // setup our canvas size and put it into the content of the frame setBounds(0,0,800,600); panel.add(this); // Tell AWT not to bother repainting our canvas since we're // going to do that our self in accelerated mode setIgnoreRepaint(true); // finally make the window visible container.pack(); container.setResizable(false); container.setVisible(true); // add a listener to respond to the user closing the window. If they // do we'd like to exit the game container.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { //cThread.interrupt(); System.exit(0); } }); // add a key input system (defined below) to our canvas // so we can respond to key pressed addKeyListener(new KeyInputHandler()); // request the focus so key events come to us requestFocus(); // create the buffering strategy which will allow AWT // to manage our accelerated graphics createBufferStrategy(2); strategy = getBufferStrategy(); // initialise the entities in our game so there's something // to see at startup initEntities(); } /** * Start a fresh game, this should clear out any old data and * create a new set. */ private void startGame() { // clear out any existing entities and intialise a new set entities.clear(); initEntities(); //initialise highscore setHighscore(0); // blank out any keyboard settings we might currently have leftPressed = false; rightPressed = false; firePressed = false; } /** * Initialise the starting state of the entities (ship and aliens). Each * entitiy will be added to the overall list of entities in the game. */ //private void initEntities() { public void initEntities() { Random randomAlien = new Random(); // create the player ship and place it roughly in the center of the screen //ship = new ShipEntity(this,"sprites/ship.gif",370,550);//orignal ship = new ShipEntity(this,"sprites/ship.gif",700,300);//changed postioning to right hand side entities.add(ship); // create a block of aliens (5 rows, by 12 aliens, spaced evenly) alienCount = 0; levelCount = 1.02; for (int row=0;row<7;row++) {//altered number of rows for (int x=0;x<5;x++) { int r = randomAlien.nextInt(100);//loop added to produce random aliens if (r < 50){ //Entity alien = new AlienEntity(this,"sprites/alien.gif",/*100+*/(x*50),(50)+row*30); Entity alien = new AlienEntity(this,"sprites/alien.gif",100+(x*90),(12)+row*85); entities.add(alien); alienCount++; } } } } //private void initEntities() { public void initAlienEntities() { Random randomAlien = new Random(); // create the player ship and place it roughly in the center of the screen //ship = new ShipEntity(this,"sprites/ship.gif",370,550);//orignal //ship = new ShipEntity(this,"sprites/ship.gif",700,300);//changed postioning to right hand side //entities.add(ship); // create a block of aliens (5 rows, by 12 aliens, spaced evenly) alienCount = 0; levelCount = levelCount + 0.10;//this increases the speed on every level for (int row=0;row<7;row++) {//altered number of rows for (int x=0;x<5;x++) { int r = randomAlien.nextInt(100);//loop added to produce random aliens if (r < 50){//randome check to show alien //Entity alien = new AlienEntity(this,"sprites/alien.gif",/*100+*/(x*50),(50)+row*30); Entity alien = new AlienEntity(this,"sprites/alien.gif",-250+(x*90),(12)+row*85); entities.add(alien); alienCount++; } } } advanceAlienSpeed(levelCount); } /** * Notification from a game entity that the logic of the game * should be run at the next opportunity (normally as a result of some * game event) */ public void updateLogic() { logicRequiredThisLoop = true; } /** * Remove an entity from the game. The entity removed will * no longer move or be drawn. * * @param entity The entity that should be removed */ public void removeEntity(Entity entity) { removeList.add(entity); } /** * Notification that the player has died. */ public void notifyDeath() { message = "Oh no! They got you, try again?"; waitingForKeyPress = true; } /** * Notification that the player has won since all the aliens * are dead. */ public void notifyWin() { message = "Well done! You Win!"; waitingForKeyPress = true; } /** * Notification that an alien has been killed */ public void notifyAlienKilled() { // reduce the alient count, if there are none left, the player has won! alienCount--; if (alienCount == 0) { //notifyWin();win not relevant here... this.initAlienEntities();//call fresh batch of aliens } // if there are still some aliens left then they all need to get faster, so // speed up all the existing aliens advanceAlienSpeed(1.30); } public void advanceAlienSpeed(double speed) { // if there are still some aliens left then they all need to get faster, so // speed up all the existing aliens for (int i=0;i<entities.size();i++) { Entity entity = (Entity) entities.get(i); if (entity instanceof AlienEntity) { // speed up by 2% entity.setHorizontalMovement(entity.getHorizontalMovement() * speed); //entity.setVerticalMovement(entity.getVerticalMovement() * 1.02); } } } /** * Attempt to fire a shot from the player. Its called "try" * since we must first check that the player can fire at this * point, i.e. has he/she waited long enough between shots */ public void tryToFire() { // check that we have waiting long enough to fire if (System.currentTimeMillis() - lastFire < firingInterval) { return; } // if we waited long enough, create the shot entity, and record the time. lastFire = System.currentTimeMillis(); ShotEntity shot = new ShotEntity(this,"sprites/shot.gif",ship.getX()+10,ship.getY()-30); entities.add(shot); } /** * The main game loop. This loop is running during all game * play as is responsible for the following activities: * <p> * - Working out the speed of the game loop to update moves * - Moving the game entities * - Drawing the screen contents (entities, text) * - Updating game events * - Checking Input * <p> */ public void gameLoop() { long lastLoopTime = System.currentTimeMillis(); // keep looping round til the game ends while (gameRunning) { // work out how long its been since the last update, this // will be used to calculate how far the entities should // move this loop long delta = System.currentTimeMillis() - lastLoopTime; lastLoopTime = System.currentTimeMillis(); // Get hold of a graphics context for the accelerated // surface and blank it out Graphics2D g = (Graphics2D) strategy.getDrawGraphics(); g.setColor(Color.black); g.fillRect(0,0,800,600); // cycle round asking each entity to move itself if (!waitingForKeyPress) { for (int i=0;i<entities.size();i++) { Entity entity = (Entity) entities.get(i); entity.move(delta); } } // cycle round drawing all the entities we have in the game for (int i=0;i<entities.size();i++) { Entity entity = (Entity) entities.get(i); entity.draw(g); } // brute force collisions, compare every entity against // every other entity. If any of them collide notify // both entities that the collision has occured for (int p=0;p<entities.size();p++) { for (int s=p+1;s<entities.size();s++) { Entity me = (Entity) entities.get(p); Entity him = (Entity) entities.get(s); if (me.collidesWith(him)) { me.collidedWith(him); him.collidedWith(me); } } } // remove any entity that has been marked for clear up entities.removeAll(removeList); removeList.clear(); // if a game event has indicated that game logic should // be resolved, cycle round every entity requesting that // their personal logic should be considered. if (logicRequiredThisLoop) { //g.drawString("Press any key",(800-g.getFontMetrics().stringWidth("Press any key"))/2,300); for (int i=0;i<entities.size();i++) { Entity entity = (Entity) entities.get(i); entity.doLogic(); } logicRequiredThisLoop = false; } // if we're waiting for an "any key" press then draw the // current message //show highscore at top of screen //show name at top of screen g.setColor(Color.white); g.drawString("Player : "+getPlayer()+" : Score : "+getHighscore(),20,20); if (waitingForKeyPress) { g.setColor(Color.white); g.drawString(message,(800-g.getFontMetrics().stringWidth(message))/2,250); g.drawString("Press any key",(800-g.getFontMetrics().stringWidth("Press any key"))/2,300); } // finally, we've completed drawing so clear up the graphics // and flip the buffer over g.dispose(); strategy.show(); // resolve the movement of the ship. First assume the ship // isn't moving. If either cursor key is pressed then // update the movement appropraitely ship.setVerticalMovement(0);//set to vertical movement if ((leftPressed) && (!rightPressed)) { ship.setVerticalMovement(-moveSpeed);//**took out setHorizaontalMOvement } else if ((rightPressed) && (!leftPressed)) { ship.setVerticalMovement(moveSpeed);//**took out setHorizaontalMOvement } // if we're pressing fire, attempt to fire if (firePressed) { tryToFire(); } // finally pause for a bit. Note: this should run us at about // 100 fps but on windows this might vary each loop due to // a bad implementation of timer try { Thread.sleep(10); } catch (Exception e) {} } } /** * A class to handle keyboard input from the user. The class * handles both dynamic input during game play, i.e. left/right * and shoot, and more static type input (i.e. press any key to * continue) * * This has been implemented as an inner class more through * habbit then anything else. Its perfectly normal to implement * this as seperate class if slight less convienient. * * @author Kevin Glass */ private class KeyInputHandler extends KeyAdapter { /** The number of key presses we've had while waiting for an "any key" press */ private int pressCount = 1; /** * Notification from AWT that a key has been pressed. Note that * a key being pressed is equal to being pushed down but *NOT* * released. Thats where keyTyped() comes in. * * @param e The details of the key that was pressed */ public void keyPressed(KeyEvent e) { // if we're waiting for an "any key" typed then we don't // want to do anything with just a "press" if (waitingForKeyPress) { return; } // if (e.getKeyCode() == KeyEvent.VK_LEFT) { ////leftPressed = true; ///} //// if (e.getKeyCode() == KeyEvent.VK_RIGHT) { //rightPressed = true; if (e.getKeyCode() == KeyEvent.VK_UP) { leftPressed = true; } if (e.getKeyCode() == KeyEvent.VK_DOWN) { rightPressed = true; } if (e.getKeyCode() == KeyEvent.VK_SPACE) { firePressed = true; } } /** * Notification from AWT that a key has been released. * * @param e The details of the key that was released */ public void keyReleased(KeyEvent e) { // if we're waiting for an "any key" typed then we don't // want to do anything with just a "released" if (waitingForKeyPress) { return; } if (e.getKeyCode() == KeyEvent.VK_UP) {//changed from VK_LEFT leftPressed = false; } if (e.getKeyCode() == KeyEvent.VK_DOWN) {//changed from VK_RIGHT rightPressed = false; } if (e.getKeyCode() == KeyEvent.VK_SPACE) { firePressed = false; } } /** * Notification from AWT that a key has been typed. Note that * typing a key means to both press and then release it. * * @param e The details of the key that was typed. */ public void keyTyped(KeyEvent e) { // if we're waiting for a "any key" type then // check if we've recieved any recently. We may // have had a keyType() event from the user releasing // the shoot or move keys, hence the use of the "pressCount" // counter. if (waitingForKeyPress) { if (pressCount == 1) { // since we've now recieved our key typed // event we can mark it as such and start // our new game waitingForKeyPress = false; startGame(); pressCount = 0; } else { pressCount++; } } // if we hit escape, then quit the game if (e.getKeyChar() == 27) { //cThread.interrupt(); System.exit(0); } } } /** * The entry point into the game. We'll simply create an * instance of class which will start the display and game * loop. * * @param argv The arguments that are passed into our game */ //public static void main(String argv[]) { //Game g =new Game(); // Start the main game loop, note: this method will not // return until the game has finished running. Hence we are // using the actual main thread to run the game. //g.gameLoop(); //} }

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How to implement multi-source XSLT mapping in 11g BPEL

- by [email protected]

In SOA 11g, you can create a XSLT mapper that uses multiple sources as the input. To implement a multi-source mapper, just follow the instructions below, Drag and drop a Transform Activity to a BPEL process Double-click on the Transform Activity, the Transform dialog window appears. Add source variables by clicking the Add icon and selecting the variable and part of the variable as needed. You can select multiple input variables. The first variable represents the main XML input to the XSL mapping, while additional variables that are added here are defined in the XSL mapping as input parameters. Select the target variable and its part if available. Specify the mapper file name, the default file name is xsl/Transformation_%SEQ%.xsl, where %SEQ% represents the sequence number of the mapper. Click OK, the xls file will be opened in the graphical mode. You can map the sources to the target as usual. Open the mapper source code, you will notice the variable representing the additional source payload, is defined as the input parameter in the map source spec and body<mapSources> <source type="XSD"> <schema location="../xsd/po.xsd"/> <rootElement name="PurchaseOrder" namespace="http://www.oracle.com/pcbpel/po"/> </source> <source type="XSD"> <schema location="../xsd/customer.xsd"/> <rootElement name="Customer" namespace="http://www.oracle.com/pcbpel/Customer"/> <param name="v_customer" /> </source> </mapSources>...<xsl:param name="v_customer"/> Let's take a look at the BPEL source code used to execute xslt mapper. <assign name="Transform_1"> <bpelx:annotation> <bpelx:pattern>transformation</bpelx:pattern> </bpelx:annotation> <copy> <from expression="ora:doXSLTransformForDoc('xsl/Transformation_1.xsl',bpws:getVariableData('v_po'),'v_customer',bpws:getVariableData('v_customer'))"/> <to variable="v_invoice"/> </copy> </assign> You will see BPEL uses ora:doXSLTransformForDoc XPath function to execute the XSLT mapper.This function returns the result of XSLT transformation when the xslt template matching the document. The signature of this function is ora:doXSLTransformForDoc(template,input, [paramQName, paramValue]*).Wheretemplate is the XSLT mapper nameinput is the string representation of xml input, paramQName is the parameter defined in the xslt mapper as the additional sourceparameterValue is the additional source payload. You can add more sources to the mapper at the later stage, but you have to modify the ora:doXSLTransformForDoc in the BPEL source code and make sure it passes correct parameter and its value pair that reflects the changes in the XSLT mapper.So the best practices are : create the variables before creating the mapping file, therefore you can add multiple sources when you define the transformation in the first place, which is more straightforward than adding them later on. Review ora:doXSLTransformForDoc code in the BPEL source and make sure it passes the correct parameters to the mapper.

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ActionResult types in MVC2

- by rajbk

In ASP.NET MVC, incoming browser requests gets mapped to a controller action method. The action method returns a type of ActionResult in response to the browser request. A basic example is shown below: public class HomeController : Controller { public ActionResult Index() { return View(); } } Here we have an action method called Index that returns an ActionResult. Inside the method we call the View() method on the base Controller. The View() method, as you will see shortly, is a method that returns a ViewResult. The ActionResult class is the base class for different controller results. The following diagram shows the types derived from the ActionResult type. ASP.NET has a description of these methods ContentResult – Represents a text result. EmptyResult – Represents no result. FileContentResult – Represents a downloadable file (with the binary content). FilePathResult – Represents a downloadable file (with a path). FileStreamResult – Represents a downloadable file (with a file stream). JavaScriptResult – Represents a JavaScript script. JsonResult – Represents a JavaScript Object Notation result that can be used in an AJAX application. PartialViewResult – Represents HTML and markup rendered by a partial view. RedirectResult – Represents a redirection to a new URL. RedirectToRouteResult – Represents a result that performs a redirection by using the specified route values dictionary. ViewResult – Represents HTML and markup rendered by a view. To return the types shown above, you call methods that are available in the Controller base class. A list of these methods are shown below. Methods without an ActionResult return type The MVC framework will translate action methods that do not return an ActionResult into one. Consider the HomeController below which has methods that do not return any ActionResult types. The methods defined return an int, object and void respectfully. public class HomeController : Controller { public int Add(int x, int y) { return x + y; } public Employee GetEmployee() { return new Employee(); } public void DoNothing() { } } When a request comes in, the Controller class hands internally uses a ControllerActionInvoker class which inspects the action parameters and invokes the correct action method. The CreateActionResult method in the ControllerActionInvoker class is used to return an ActionResult. This method is shown below. If the result of the action method is null, an EmptyResult instance is returned. If the result is not of type ActionResult, the result is converted to a string and returned as a ContentResult. protected virtual ActionResult CreateActionResult(ControllerContext controllerContext, ActionDescriptor actionDescriptor, object actionReturnValue) { if (actionReturnValue == null) { return new EmptyResult(); } ActionResult actionResult = (actionReturnValue as ActionResult) ?? new ContentResult { Content = Convert.ToString(actionReturnValue, CultureInfo.InvariantCulture) }; return actionResult; } In the HomeController class above, the DoNothing method will return an instance of the EmptyResult() Renders an empty webpage the GetEmployee() method will return a ContentResult which contains a string that represents the current object Renders the text “MyNameSpace.Controllers.Employee” without quotes. the Add method for a request of /home/add?x=3&y=5 returns a ContentResult Renders the text “8” without quotes. Unit Testing The nice thing about the ActionResult types is in unit testing the controller. We can, without starting a web server, create an instance of the Controller, call the methods and verify that the type returned is the expected ActionResult type. We can then inspect the returned type properties and confirm that it contains the expected values. Enjoy! Sulley: Hey, Mike, this might sound crazy but I don't think that kid's dangerous. Mike: Really? Well, in that case, let's keep it. I always wanted a pet that could kill me.

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SOA 10g Developing a Simple Hello World Process

- by [email protected]

Softwares & Hardware Needed Intel Pentium D CPU 3 GHz, 2 GB RAM, Windows XP System ( Thats what i am using ) You could as well use Linux , but please choose High End RAM 10G SOA Suite from Oracle(TM) , Read Installation documents at www.Oracle.com J Developer 10.1.3.3 Official Documents at http://www.oracle.com/technology/products/ias/bpel/index.html java -version Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode)BPEL Introduction - Developing a Simple Hello World Process Synchronous BPEL Process This Exercise focuses on developing a Synchronous Process, which mean you give input to the BPEL Process you get output immediately no waiting at all. The Objective of this exercise is to give input as name and it greets with Hello Appended by that name example, if I give input as "James" the BPEL process returns "Hello James". 1. Open the Oracle JDeveloper click on File -> New Application give the name "JamesApp" you can give your own name if it pleases you. Select the folder where you want to place the application. Click "OK" 2. Right Click on the "JamesApp" in the Application Navigator, Select New Menu. 3. Select "Projects" under "General" and "BPEL Process Project", click "OK" these steps remain same for all BPEL Projects 4. Project Setting Wizard Appears, Give the "Process Name" as "MyBPELProc" and Namespace as http://xmlns.james.com/ MyBPELProc, Select Template as "Synchronous BPEL Process click "Next" 5. Accept the input and output schema names as it is, click "Finish" 6. You would see the BPEL Process Designer, some of the folders such as Integration content and Resources are created and few more files 7. Assign Activity : Allows Assigning values to variables or copying values of one variable to another and also do some string manipulation or mathematical operations In the component palette at extreme right, select Process Activities from the drop down, and drag and drop "Assign" between "receive Input" and "replyOutput" 8. You can right click and edit the Assign activity and give any suitable name "AssignHello", 9. Select "Copy Operation" Tab create "Copy Operation" 10. In the From variables click on expression builder, select input under "input variable", Click on insert into expression bar, complete the concat syntax, Note to use "Ctrl+space bar" inside expression window to Auto Populate the expression as shown in the figure below. What we are actually doing here is concatenating the String "Hello ", with the variable value received through the variable named "input" 11. Observe that once an expression is completed the "To Variable" is assigned to a variable by name "result" 12. Finally the copy variable looks as below 13. It's the time to deploy, start the SOA Suite 14. Establish connection to the Server from JDeveloper, this can be done adding a New Application Server under Connection, give the server name, username and password and test connection. 15. Deploy the "MyBPELProc" to the "default domain" 16. http://localhost:8080/ allows connecting to SOA Suite web portal, click on "BPEL Control" , login with the username "oc4jadmin" password what ever you gave during installation 17. "MyBPELProc" is visisble under "Deployed BPEL Processes" in the "Dashboard" Tab, click on the it 18. Initiate tab open to accept input, enter data such as input is "James" click on "Post XML Button" 19. Click on Visual Flow 20. Click on receive Input , it shows "James" as input received 21. Click on reply Output, it shows "Hello James" so the BPEL process is successfully executed. 22. It may be worth seeing all the instance created everytime a BPEL process is executed by giving some inputs. Purge All button allows to delete all the unwanted previous instances of BPEL process, dont worry it wont delete the BPEL process itself :-) 23. It may also be some importance to understand the XSD File which holds input & output variable names & data types. 24. You could drag n drop variables as elements over sequence at the designer or directly edit the XML Source file.

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ASP.NET JavaScript Routing for ASP.NET MVC–Constraints

- by zowens

If you haven’t had a look at my previous post about ASP.NET routing, go ahead and check it out before you read this post: http://weblogs.asp.net/zowens/archive/2010/12/20/asp-net-mvc-javascript-routing.aspx And the code is here: https://github.com/zowens/ASP.NET-MVC-JavaScript-Routing Anyways, this post is about routing constraints. A routing constraint is essentially a way for the routing engine to filter out route patterns based on the day from the URL. For example, if I have a route where all the parameters are required, I could use a constraint on the required parameters to say that the parameter is non-empty. Here’s what the constraint would look like: Notice that this is a class that inherits from IRouteConstraint, which is an interface provided by System.Web.Routing. The match method returns true if the value is a match (and can be further processed by the routing rules) or false if it does not match (and the route will be matched further along the route collection). Because routing constraints are so essential to the route matching process, it was important that they be part of my JavaScript routing engine. But the problem is that we need to somehow represent the constraint in JavaScript. I made a design decision early on that you MUST put this constraint into JavaScript to match a route. I didn’t want to have server interaction for the URL generation, like I’ve seen in so many applications. While this is easy to maintain, it causes maintenance issues in my opinion. So the way constraints work in JavaScript is that the constraint as an object type definition is set on the route manager. When a route is created, a new instance of the constraint is created with the specific parameter. In its current form the constraint function MUST return a function that takes the route data and will return true or false. You will see the NotEmpty constraint in a bit. Another piece to the puzzle is that you can have the JavaScript exist as a string in your application that is pulled in when the routing JavaScript code is generated. There is a simple interface, IJavaScriptAddition, that I have added that will be used to output custom JavaScript. Let’s put it all together. Here is the NotEmpty constraint. There’s a few things at work here. The constraint is called “notEmpty” in JavaScript. When you add the constraint to a parameter in your C# code, the route manager generator will look for the JsConstraint attribute to look for the name of the constraint type name and fallback to the class name. For example, if I didn’t apply the “JsConstraint” attribute, the constraint would be called “NotEmpty”. The JavaScript code essentially adds a function to the “constraintTypeDefs” object on the “notEmpty” property (this is how constraints are added to routes). The function returns another function that will be invoked with routing data. Here’s how you would use the NotEmpty constraint in C# and it will work with the JavaScript routing generator. The only catch to using route constraints currently is that the following is not supported: The constraint will work in C# but is not supported by my JavaScript routing engine. (I take pull requests so if you’d like this… go ahead and implement it). I just wanted to take this post to explain a little bit about the background on constraints. I am looking at expanding the current functionality, but for now this is a good start. Thanks for all the support with the JavaScript router. Keep the feedback coming!

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Ubuntu 12.04 patched b43 driver compilation error

- by Zed

I tried this How do I install this patched b43 driver? guide to install patched b43 driver on Ubuntu 12.04 with 3.2.0-31-generic kernel but I can't pass compilation phase.Here is what I did: wget http://www.orbit-lab.org/kernel/compat-wireless-3-stable/v3.1/compat-wireless-3.1.1-1.tar.bz2 cd compat-wireless-3.1.1-1/ scripts/driver-select b43 make make -C /lib/modules/3.2.0-31-generic/build M=/home/marco/compat-wireless-3.1.1-1 modules make[1]: Entering directory `/usr/src/linux-headers-3.2.0-31-generic' CC [M] /home/marco/compat-wireless-3.1.1-1/compat/main.o In file included from /home/marco/compat-wireless-3.1.1-1/include/linux/compat-2.6.29.h:5:0, from /home/marco/compat-wireless-3.1.1-1/include/linux/compat-2.6.h:24, from <command-line>:0: include/linux/netdevice.h:1153:5: warning: "IS_ENABLED" is not defined [-Wundef] include/linux/netdevice.h:1153:15: error: missing binary operator before token "(" include/linux/netdevice.h: In function ‘netdev_uses_dsa_tags’: include/linux/netdevice.h:1421:9: error: ‘struct net_device’ has no member named ‘dsa_ptr’ include/linux/netdevice.h:1422:31: error: ‘struct net_device’ has no member named ‘dsa_ptr’ include/linux/netdevice.h: In function ‘netdev_uses_trailer_tags’: include/linux/netdevice.h:1431:9: error: ‘struct net_device’ has no member named ‘dsa_ptr’ include/linux/netdevice.h:1432:35: error: ‘struct net_device’ has no member named ‘dsa_ptr’ make[3]: *** [/home/marco/compat-wireless-3.1.1-1/compat/main.o] Error 1 make[2]: *** [/home/marco/compat-wireless-3.1.1-1/compat] Error 2 make[1]: *** [_module_/home/marco/compat-wireless-3.1.1-1] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-3.2.0-31-generic' make: *** [modules] Error 2 To fix that error I added #include <linux/kconfig.h> to /usr/src/linux-headers-3.2.0-31-generic/include/linux/netdevice.h but now I'm getting something else make make -C /lib/modules/3.2.0-31-generic/build M=/home/marco/compat-wireless-3.1.1-1 modules make[1]: Entering directory `/usr/src/linux-headers-3.2.0-31-generic' CC [M] /home/marco/compat-wireless-3.1.1-1/compat/main.o LD [M] /home/marco/compat-wireless-3.1.1-1/compat/compat.o CC [M] /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.o In file included from /home/marco/compat-wireless-3.1.1-1/include/linux/bcma/bcma.h:9:0, from /home/marco/compat-wireless-3.1.1-1/drivers/bcma/bcma_private.h:8, from /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.c:8: /home/marco/compat-wireless-3.1.1-1/include/linux/ssb/ssb.h: In function ‘ssb_driver_register’: /home/marco/compat-wireless-3.1.1-1/include/linux/ssb/ssb.h:236:36: error: ‘THIS_MODULE’ undeclared (first use in this function) /home/marco/compat-wireless-3.1.1-1/include/linux/ssb/ssb.h:236:36: note: each undeclared identifier is reported only once for each function it appears in In file included from /home/marco/compat-wireless-3.1.1-1/drivers/bcma/bcma_private.h:8:0, from /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.c:8: /home/marco/compat-wireless-3.1.1-1/include/linux/bcma/bcma.h: In function ‘bcma_driver_register’: /home/marco/compat-wireless-3.1.1-1/include/linux/bcma/bcma.h:170:37: error: ‘THIS_MODULE’ undeclared (first use in this function) /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.c: At top level: /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.c:12:20: error: expected declaration specifiers or ‘...’ before string constant /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.c:13:16: error: expected declaration specifiers or ‘...’ before string constant /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.c:182:1: warning: data definition has no type or storage class [enabled by default] /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.c:182:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL_GPL’ [-Wimplicit-int] /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.c:182:1: warning: parameter names (without types) in function declaration [enabled by default] /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.c:188:1: warning: data definition has no type or storage class [enabled by default] /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.c:188:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL_GPL’ [-Wimplicit-int] /home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.c:188:1: warning: parameter names (without types) in function declaration [enabled by default] make[3]: *** [/home/marco/compat-wireless-3.1.1-1/drivers/bcma/main.o] Error 1 make[2]: *** [/home/marco/compat-wireless-3.1.1-1/drivers/bcma] Error 2 make[1]: *** [_module_/home/marco/compat-wireless-3.1.1-1] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-3.2.0-31-generic' make: *** [modules] Error 2 Any suggestion what to try next?

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What are developer's problems with helpful error messages?

- by Moo-Juice

It continue to astounds me that, in this day and age, products that have years of use under their belt, built by teams of professionals, still to this day - fail to provide helpful error messages to the user. In some cases, the addition of just a little piece of extra information could save a user hours of trouble. A program that generates an error, generated it for a reason. It has everything at its disposal to inform the user as much as it can, why something failed. And yet it seems that providing information to aid the user is a low-priority. I think this is a huge failing. One example is from SQL Server. When you try and restore a database that is in use, it quite rightly won't let you. SQL Server knows what processes and applications are accessing it. Why can't it include information about the process(es) that are using the database? I know not everyone passes an Applicatio_Name attribute on their connection string, but even a hint about the machine in question could be helpful. Another candidate, also SQL Server (and mySQL) is the lovely string or binary data would be truncated error message and equivalents. A lot of the time, a simple perusal of the SQL statement that was generated and the table shows which column is the culprit. This isn't always the case, and if the database engine picked up on the error, why can't it save us that time and just tells us which damned column it was? On this example, you could argue that there may be a performance hit to checking it and that this would impede the writer. Fine, I'll buy that. How about, once the database engine knows there is an error, it does a quick comparison after-the-fact, between values that were going to be stored, versus the column lengths. Then display that to the user. ASP.NET's horrid Table Adapters are also guilty. Queries can be executed and one can be given an error message saying that a constraint somewhere is being violated. Thanks for that. Time to compare my data model against the database, because the developers are too lazy to provide even a row number, or example data. (For the record, I'd never use this data-access method by choice, it's just a project I have inherited!). Whenever I throw an exception from my C# or C++ code, I provide everything I have at hand to the user. The decision has been made to throw it, so the more information I can give, the better. Why did my function throw an exception? What was passed in, and what was expected? It takes me just a little longer to put something meaningful in the body of an exception message. Hell, it does nothing but help me whilst I develop, because I know my code throws things that are meaningful. One could argue that complicated exception messages should not be displayed to the user. Whilst I disagree with that, it is an argument that can easily be appeased by having a different level of verbosity depending on your build. Even then, the users of ASP.NET and SQL Server are not your typical users, and would prefer something full of verbosity and yummy information because they can track down their problems faster. Why to developers think it is okay, in this day and age, to provide the bare minimum amount of information when an error occurs? It's 2011 guys, come on.

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Build Explorer version 1.1 for Visual Studio Team Explorer is released

- by terje

Our free extension to Visual Studio , the folder based Build Explorer Version 1.1 has now been released, and uploaded to the Visual Studio Gallery and Codeplex. We have collected up a few changes and some bugs, as follows: Changes: Queue Default Builds can now be optionally fully enabled, fully disabled or enabled just for leaf nodes (=disabled for folders). If you got a large number of builds it was pretty scary to be able to launch all of them with just one click. However, it is nice to avoid having the dialog box up when you want to just run off a single build. That’s the reasoning between the 3rd choice here. Auto fill-in of the builds at start up and refresh This was a request that came up a lot, and which was also irritating to us. When the Team Project is opened, the Build explorer will start by itself and fill up it’s tree. So you don’t need to click the node anymore. There was also quite a bit of flashing when the tree filled up, this has been reduced to just a single top level fill before it collapses the node. The speed of the buildup of the tree has also been increased. The “All Build Definitions” node is now shown on top of the list Login box appeared in certain cross domain situations. This was a fix for the TF30063 authentication problem we had in the beginning. Hopefully the new code has that fixed properly so that both the login box and the TF30063 are gone forever. Our testing so far seems to indicate it works. If anyone gets a real problem here there are two workarounds: 1) Turn off the auto refresh to reduce the issue. If this doesn’t fix it, then 2) please reinstall the former version (go to the codeplex download site if you don’t have it anymore) Write a comment to this blog post with a description of what happens, and I will send a temporary fix asap. Bug fixes: The folder name matching was case sensitive, so “Application.CI” and “application.CI” created two different folders. View all builds not shown for leaf odes, and view builds didn’t work in all cases. There was some inconsistencies here which have been fixed. Partly fixed: The context menu to queue a new build for disabled builds should be removed, but that was a difficult one, and is still on the list, but the command will not do anything for a disabled build. Using the Queue Default Builds on a folder, and if it had some disabled builds below an error box appeared and ruined the whole experience. As a result of these fixes there has been introduced some new options, as shown below: The two first settings, the Separator symbol and the options for how to handle Queuing of default builds are set per Team Project, and is stored in the TFS source control under the BuildProcessTemplates folder, with the name Inmeta.VisualStudio.BuildExplorer.Settings.xml The next two settings need some explanations. They handle the behavior for the auto update of the build folders. First, these are stored in the local registry per user, at the key HKEY_CURRENT_USER/Software\Inmeta\BuildExplorer. The first option Use Timed Refresh at Startup, if turned off, you will need to click the node as it is done in Version 1.0. The second option is a timed value, the time after the Build explorer node is created and until the scanning of the Build folders start. It is assumed that this is enough, and the tests so far indicates this. If you have very many builds and you see that the explorer don’t get them all, try to increase this value, and of course, notify me of your case, either here or on the Visual Gallery site.

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Creating PDF documents dynamically using Umbraco and XSL-FO part 2

- by Vizioz Limited

Since my last post I have made a few modifications to the PDF generation, the main one being that the files are now dynamically renamed so that they reflect the name of the case study instead of all being called PDF.PDF which was not a very helpful filename, I just wanted to get something live last week, so decided that something was better than nothing :)The issue with the filenames comes down to the way that the PDF's are being generated by using an alternative template in Umbraco, this means that all you need to do is add " /pdf " to the end of a case study URL and it will create a PDF version of the case study. The down side is that your browser will merrily download the file and save it as PDF.PDF because that is the name of the last part of the URL.What you need to do is set the content-disposition header to be equal to the name you would like the file use, Darren Ferguson mentioned this on the Change the name of the PDF forum post.We have used the same technique for downloading dynamically generated excel files, so I thought it would be useful to create a small macro to set both this header and also to set the caching headers to prevent any caching issues, I think in the past we have experienced all possible issues, including various issues where IE behaves differently to other browsers when you are using SSL and so the below code should work in all situations!The template for the PDF alternative template is very simple:<%@ Master Language="C#" MasterPageFile="~/umbraco/masterpages/default.master" AutoEventWireup="true" %><asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolderDefault" runat="server"> <umbraco:Macro Alias="PDFHeaders" runat="server"></umbraco:Macro> <umbraco:Macro xsl="FO-CaseStudy.xslt" Alias="PDFXSLFO" runat="server"></umbraco:Macro></asp:Content>The following code snippet is the XSLT macro that simply creates our file name and then passes the file name into the helper function:<xsl:template match="/"> <xsl:variable name="fileName"> <xsl:text>Vizioz_</xsl:text> <xsl:value-of select="$currentPage/@nodeName" /> <xsl:text>_case_study.pdf</xsl:text> </xsl:variable> <xsl:value-of select="Vizioz.Helper:AddDocumentDownloadHeaders('application/pdf', $fileName)"/> </xsl:template>And the following code is the helper function that clears the current response and adds all the appropriate headers:public static void AddDocumentDownloadHeaders(string contentType, string fileName){ HttpResponse response = HttpContext.Current.Response; HttpRequest request = HttpContext.Current.Request; response.Clear(); response.ClearHeaders(); if (request.IsSecureConnection & request.Browser.Browser == "IE") { // Don't use the caching headers if the browser is IE and it's a secure connection // see: http://support.microsoft.com/kb/323308 } else { // force not using the cache response.AppendHeader("Cache-Control", "no-cache"); response.AppendHeader("Cache-Control", "private"); response.AppendHeader("Cache-Control", "no-store"); response.AppendHeader("Cache-Control", "must-revalidate"); response.AppendHeader("Cache-Control", "max-stale=0"); response.AppendHeader("Cache-Control", "post-check=0"); response.AppendHeader("Cache-Control", "pre-check=0"); response.AppendHeader("Pragma", "no-cache"); response.Cache.SetCacheability(HttpCacheability.NoCache); response.Cache.SetNoStore(); response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1)); } response.AppendHeader("Expires", DateTime.Now.AddMinutes(-1).ToLongDateString()); response.AppendHeader("Keep-Alive", "timeout=3, max=993"); response.AddHeader("content-disposition", "attachment; filename=\"" + fileName + "\""); response.ContentType = contentType;}I will write another blog soon with some more details about XSL-FO and how to create the PDF's dynamically.Please do re-tweet if you find this interest :)

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SharePoint.DesignFactory.ContentFiles–building WCM sites

- by svdoever

One of the use cases where we use the SharePoint.DesignFactory.ContentFiles tooling is in building SharePoint Publishing (WCM) solutions for SharePoint 2007, SharePoint 2010 and Office365. Publishing solutions are often solutions that have one instance, the publishing site (possibly with subsites), that in most cases need to go through DTAP. If you dissect a publishing site, in most case you have the following findings: The publishing site spans a site collection The branding of the site is specified in the root site, because: Master pages live in the root site (/_catalogs/masterpage) Page layouts live in the root site (/_catalogs/masterpage) The style library lives in the root site ( /Style Library) and contains images, css, javascript, xslt transformations for your CQWP’s, … Preconfigured web parts live in the root site (/_catalogs/wp) The root site and subsites contains a document library called Pages (or your language-specific version of it) containing publishing pages using the page layouts and master pages The site collection contains content types, fields and lists When using the SharePoint.DesignFactory.ContentFiles tooling it is very easy to create, test, package and deploy the artifacts that can be uploaded to the SharePoint content database. This can be done in a fast and simple way without the need to create and deploy WSP packages. If we look at the above list of artifacts we can use SharePoint.DesignFactory.ContentFiles for master pages, page layouts, the style library, web part configurations, and initial publishing pages (these are normally made through the SharePoint web UI). Some artifacts like content types, fields and lists in the above list can NOT be handled by SharePoint.DesignFactory.ContentFiles, because they can’t be uploaded to the SharePoint content database. The good thing is that these artifacts are the artifacts that don’t change that much in the development of a SharePoint Publishing solution. There are however multiple ways to create these artifacts: Use paper script: create them manually in each of the environments based on documentation Automate the creation of the artifacts using (PowerShell) script Develop a WSP package to create these artifacts I’m not a big fan of the third option (see my blog post Thoughts on building deployable and updatable SharePoint solutions). It is a lot of work to create content types, fields and list definitions using all kind of XML files, and it is not allowed to modify these artifacts when in use. I know… SharePoint 2010 has some content type upgrade possibilities, but I think it is just too cumbersome. The first option has the problem that content types and fields get ID’s, and that these ID’s must be used by the metadata on for example page layouts. No problem for SharePoint.DesignFactory.ContentFiles, because it supports deploy-time resolving of these ID’s using PowerShell. For example consider the following metadata definition for the page layout contactpage-wcm.aspx.properties.ps1: Metadata page layout # This script must return a hashtable @{ name=value; ... } of field name-value pairs # for the content file that this script applies to. # On deployment to SharePoint, these values are written as fields in the corresponding list item (if any) # Note that fields must exist; they can be updated but not created or deleted. # This script is called right after the file is deployed to SharePoint. # You can use the script parameters and arbitrary PowerShell code to interact with SharePoint. # e.g. to calculate properties and values at deployment time. param([string]$SourcePath, [string]$RelativeUrl, $Context) @{ "ContentTypeId" = $Context.GetContentTypeID('GeneralPage'); "MasterPageDescription" = "Cloud Aviator Contact pagelayout (wcm - don't use)"; "PublishingHidden" = "1"; "PublishingAssociatedContentType" = $Context.GetAssociatedContentTypeInfo('GeneralPage') } The PowerShell functions GetContentTypeID and GetAssociatedContentTypeInfo can at deploy-time resolve the required information from the server we are deploying to. I personally prefer the second option: automate creation through PowerShell, because there are PowerShell scripts available to export content types and fields. An example project structure for a typical SharePoint WCM site looks like: Note that this project uses DualLayout. So if you build Publishing sites using SharePoint, checkout out the completely free SharePoint.DesignFactory.ContentFiles tooling and start flying!

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Displaying JSON in your Browser

- by Rick Strahl

Do you work with AJAX requests a lot and need to quickly check URLs for JSON results? Then you probably know that it’s a fairly big hassle to examine JSON results directly in the browser. Yes, you can use FireBug or Fiddler which work pretty well for actual AJAX requests, but if you just fire off a URL for quick testing in the browser you usually get hit by the Save As dialog and the download manager, followed by having to open the saved document in a text editor in FireFox. Enter JSONView which allows you to simply display JSON results directly in the browser. For example, imagine I have a URL like this: http://localhost/westwindwebtoolkitweb/RestService.ashx?Method=ReturnObject&format=json&Name1=Rick&Name2=John&date=12/30/2010 typed directly into the browser and that that returns a complex JSON object. With JSONView the result looks like this: No fuss, no muss. It just works. Here the result is an array of Person objects that contain additional address child objects displayed right in the browser. JSONView basically adds content type checking for application/json results and when it finds a JSON result takes over the rendering and formats the display in the browser. Note that it re-formats the raw JSON as well for a nicer display view along with collapsible regions for objects. You can still use View Source to see the raw JSON string returned. For me this is a huge time-saver. As I work with AJAX result data using GET and REST style URLs quite a bit it’s a big timesaver. To quickly and easily display JSON is a key feature in my development day and JSONView for all its simplicity fits that bill for me. If you’re doing AJAX development and you often review URL based JSON results do yourself a favor and pick up a copy of JSONView. Other Browsers JSONView works only with FireFox – what about other browsers? Chrome Chrome actually displays raw JSON responses as plain text without any plug-ins. There’s no plug-in or configuration needed, it just works, although you won’t get any fancy formatting. [updated from comments] There’s also a port of JSONView available for Chrome from here: https://chrome.google.com/webstore/detail/chklaanhfefbnpoihckbnefhakgolnmc It looks like it works just about the same as the JSONView plug-in for FireFox. Thanks for all that pointed this out… Internet Explorer Internet Explorer probably has the worst response to JSON encoded content: It displays an error page as it apparently tries to render JSON as XML: Yeah that seems real smart – rendering JSON as an XML document. WTF? To get at the actual JSON output, you can use View Source. To get IE to display JSON directly as text you can add a Mime type mapping in the registry: Create a new application/json key in: HKEY_CLASSES_ROOT\MIME\Database\ContentType\application/json Add a string value of CLSID with a value of {25336920-03F9-11cf-8FD0-00AA00686F13} Add a DWORD value of Encoding with a value of 80000 I can’t take credit for this tip – found it here first on Sky Sander’s Blog. Note that the CLSID can be used for just about any type of text data you want to display as plain text in the IE. It’s the in-place display mechanism and it should work for most text content. For example it might also be useful for looking at CSS and JS files inside of the browser instead of downloading those documents as well. © Rick Strahl, West Wind Technologies, 2005-2011Posted in ASP.NET AJAX

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Enabling OUD Entry Cache for large static groups

- by Sylvain Duloutre

Oracle Unified Directory can take advantage of several caches to improve performances. especially the so-called database cache and the file system cache. In addition to that, it is possible to use an entry cache to cache LDAP entries. By default, the entry cache is not used. In specific deployements involving large static groups, it may worth loading the group entries to the entry cache to speed up group membership and group-based aci evaluation. To do so, run the following commands: First, specify which entries should reside in the entry cache. In the commad below, only entries matching the LDAP filter " (|(objctclass=groupOfNames)(objectclass=groupOfUniqueNames)) " will be stored in the entry cache. dsconfig set-entry-cache-prop \ --cache-name FIFO \ --add include-filter:$\|\(objctclass=groupOfNames$$objectclass=groupOfUniqueNames$\) --port <ADMIN_PORT> \ --bindDN cn=Directory\ Manager \ --bindPassword ****** \ --no-prompt Then enable the entry cache: dsconfig set-entry-cache-prop \ --cache-name FIFO \ --set enabled:true \ --port <ADMIN_PORT> \ --bindDN cn=Directory\ Manager \ --bindPassword ****** \ --no-prompt In addition to that, you can control how much memory the entry cache can use: oud@s96sec1d0-v3:/application/oud : dsconfig -X -n -p <ADMIN PORT> -D "cn=Directory Manager" -w <password> get-entry-cache-prop --cache-name FIFO Property : Value(s) -------------------:----------------------------------------------------------- cache-level : 1 enabled : true exclude-filter : - include-filter : (|(objctclass=groupOfNames)(objectclass=groupOfUniqueNames)) max-entries : 2147483647 max-memory-percent : 90 You can change the max-entries amd max-memory-percent properties to control the entry cache size using the dsconfig set-entry-cache-prop command.

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Parallelism in .NET – Part 19, TaskContinuationOptions

- by Reed

My introduction to Task continuations demonstrates continuations on the Task class. In addition, I’ve shown how continuations allow handling of multiple tasks in a clean, concise manner. Continuations can also be used to handle exceptional situations using a clean, simple syntax. In addition to standard Task continuations , the Task class provides some options for filtering continuations automatically. This is handled via the TaskContinationOptions enumeration, which provides hints to the TaskScheduler that it should only continue based on the operation of the antecedent task. This is especially useful when dealing with exceptions. For example, we can extend the sample from our earlier continuation discussion to include support for handling exceptions thrown by the Factorize method: // Get a copy of the UI-thread task scheduler up front to use later var uiScheduler = TaskScheduler.FromCurrentSynchronizationContext(); // Start our task var factorize = Task.Factory.StartNew( () => { int primeFactor1 = 0; int primeFactor2 = 0; bool result = Factorize(10298312, ref primeFactor1, ref primeFactor2); return new { Result = result, Factor1 = primeFactor1, Factor2 = primeFactor2 }; }); // When we succeed, report the results to the UI factorize.ContinueWith(task => textBox1.Text = string.Format("{0}/{1} [Succeeded {2}]", task.Result.Factor1, task.Result.Factor2, task.Result.Result), CancellationToken.None, TaskContinuationOptions.NotOnFaulted, uiScheduler); // When we have an exception, report it factorize.ContinueWith(task => textBox1.Text = string.Format("Error: {0}", task.Exception.Message), CancellationToken.None, TaskContinuationOptions.OnlyOnFaulted, uiScheduler); .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } The above code works by using a combination of features. First, we schedule our task, the same way as in the previous example. However, in this case, we use a different overload of Task.ContinueWith which allows us to specify both a specific TaskScheduler (in order to have your continuation run on the UI’s synchronization context) as well as a TaskContinuationOption. In the first continuation, we tell the continuation that we only want it to run when there was not an exception by specifying TaskContinuationOptions.NotOnFaulted. When our factorize task completes successfully, this continuation will automatically run on the UI thread, and provide the appropriate feedback. However, if the factorize task has an exception – for example, if the Factorize method throws an exception due to an improper input value, the second continuation will run. This occurs due to the specification of TaskContinuationOptions.OnlyOnFaulted in the options. In this case, we’ll report the error received to the user. We can use TaskContinuationOptions to filter our continuations by whether or not an exception occurred and whether or not a task was cancelled. This allows us to handle many situations, and is especially useful when trying to maintain a valid application state without ever blocking the user interface. The same concepts can be extended even further, and allow you to chain together many tasks based on the success of the previous ones. Continuations can even be used to create a state machine with full error handling, all without blocking the user interface thread.

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Data Quality and Master Data Management Resources

- by Dejan Sarka

Many companies or organizations do regular data cleansing. When you cleanse the data, the data quality goes up to some higher level. The data quality level is determined by the amount of work invested in the cleansing. As time passes, the data quality deteriorates, and you need to repeat the cleansing process. If you spend an equal amount of effort as you did with the previous cleansing, you can expect the same level of data quality as you had after the previous cleansing. And then the data quality deteriorates over time again, and the cleansing process starts over and over again. The idea of Data Quality Services is to mitigate the cleansing process. While the amount of time you need to spend on cleansing decreases, you will achieve higher and higher levels of data quality. While cleansing, you learn what types of errors to expect, discover error patterns, find domains of correct values, etc. You don’t throw away this knowledge. You store it and use it to find and correct the same issues automatically during your next cleansing process. The following figure shows this graphically. The idea of master data management, which you can perform with Master Data Services (MDS), is to prevent data quality from deteriorating. Once you reach a particular quality level, the MDS application—together with the defined policies, people, and master data management processes—allow you to maintain this level permanently. This idea is shown in the following picture. OK, now you know what DQS and MDS are about. You can imagine the importance on maintaining the data quality. Here are some resources that help you preparing and executing the data quality (DQ) and master data management (MDM) activities. Books Dejan Sarka and Davide Mauri: Data Quality and Master Data Management with Microsoft SQL Server 2008 R2 – a general introduction to MDM, MDS, and data profiling. Matching explained in depth. Dejan Sarka, Matija Lah and Grega Jerkic: MCTS Self-Paced Training Kit (Exam 70-463): Building Data Warehouses with Microsoft SQL Server 2012 – I wrote quite a few chapters about DQ and MDM, and introduced also SQL Server 2012 DQS. Thomas Redman: Data Quality: The Field Guide – you should start with this book. Thomas Redman is the father of DQ and MDM. Tyler Graham: Microsoft SQL Server 2012 Master Data Services – MDS in depth from a product team mate. Arkady Maydanchik: Data Quality Assessment – data profiling in depth. Tamraparni Dasu, Theodore Johnson: Exploratory Data Mining and Data Cleaning – advanced data profiling with data mining. Forthcoming presentations I am presenting a DQS and MDM seminar at PASS SQL Rally Amsterdam 2013: Wednesday, November 6th, 2013: Enterprise Information Management with SQL Server 2012 – a good kick start to your first DQ and / or MDM project. Courses Data Quality and Master Data Management with SQL Server 2012 – I wrote a 2-day course for SolidQ. If you are interested in this course, which I could also deliver in a shorter seminar way, you can contact your closes SolidQ subsidiary, or, of course, me directly on addresses [email protected] or [email protected]. This course could also complement the existing courseware portfolio of training providers, which are welcome to contact me as well. Start improving the quality of your data now!

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