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  • Scala actors: receive vs react

    - by jqno
    Let me first say that I have quite a lot of Java experience, but have only recently become interested in functional languages. Recently I've started looking at Scala, which seems like a very nice language. However, I've been reading about Scala's Actor framework in Programming in Scala, and there's one thing I don't understand. In chapter 30.4 it says that using react instead of receive makes it possible to re-use threads, which is good for performance, since threads are expensive in the JVM. Does this mean that, as long as I remember to call react instead of receive, I can start as many Actors as I like? Before discovering Scala, I've been playing with Erlang, and the author of Programming Erlang boasts about spawning over 200,000 processes without breaking a sweat. I'd hate to do that with Java threads. What kind of limits am I looking at in Scala as compared to Erlang (and Java)? Also, how does this thread re-use work in Scala? Let's assume, for simplicity, that I have only one thread. Will all the actors that I start run sequentially in this thread, or will some sort of task-switching take place? For example, if I start two actors that ping-pong messages to each other, will I risk deadlock if they're started in the same thread? According to Programming in Scala, writing actors to use react is more difficult than with receive. This sounds plausible, since react doesn't return. However, the book goes on to show how you can put a react inside a loop using Actor.loop. As a result, you get loop { react { ... } } which, to me, seems pretty similar to while (true) { receive { ... } } which is used earlier in the book. Still, the book says that "in practice, programs will need at least a few receive's". So what am I missing here? What can receive do that react cannot, besides return? And why do I care? Finally, coming to the core of what I don't understand: the book keeps mentioning how using react makes it possible to discard the call stack to re-use the thread. How does that work? Why is it necessary to discard the call stack? And why can the call stack be discarded when a function terminates by throwing an exception (react), but not when it terminates by returning (receive)? I have the impression that Programming in Scala has been glossing over some of the key issues here, which is a shame, because otherwise it's a truly excellent book.

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  • Mapping two tables 0..n in Hibernate

    - by simon
    I have a table Users CREATE TABLE "USERS" ( "ID" NUMBER NOT NULL , "LOGINNAME" VARCHAR2 (150) NOT NULL ) and I have a second table SpecialUsers. No UserId can occur twice in the SpecialUsers table, and only a small subset of the ids of users in the Users table are contained in the SpecialUsers table. CREATE TABLE "SPECIALUSERS" ( "USERID" NUMBER NOT NULL, CONSTRAINT "PK_SPECIALUSERS" PRIMARY KEY ("USERID") ) ALTER TABLE "SPECIALUSERS" ADD CONSTRAINT "FK_SPECIALUSERS_USERID" FOREIGN KEY ("USERID") REFERENCES "USERS" ("ID") / Mapping the Users table in Hibernate works ok <hibernate-mapping package="com.initech.domain"> <class name="com.initech.User" table="USERS"> <id name="id" column="ID" type="java.lang.Long"> <meta attribute="use-in-tostring">true</meta> <generator class="sequence"> <param name="sequence">SEQ_USERS_ID</param> </generator> </id> <property name="loginName" column="LOGINNAME" type="java.lang.String" not-null="true"> <meta attribute="use-in-tostring">true</meta> </property> </class> </hibernate-mapping> But I'm struggling in creating the mapping for the SpecialUsers table. All the examples (e.g. in Hibernate documentation) in Internet I found don't have this type of self-reference. I tried a mapping like this: <hibernate-mapping package="com.initech.domain"> <class name="com.initech.User" table="SPECIALUSERS"> <id name="id" column="USERID"> <meta attribute="use-in-tostring">true</meta> <generator class="foreign"> <param name="property">user</param> </generator> </id> <one-to-one name="user" class="User"/> </class> </hibernate-mapping> but got the error Invocation of init method failed; nested exception is org.hibernate.DuplicateMappingException: Duplicate class/entity mapping com.initech.User How should I map the SpecialUsers table? What I need on the application level is a list of the User objects contained in the SpecialUsers table.

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  • HttpSession problem in Google App Engine/J

    - by Tahir Akram
    I am writting a Twitter web app by using Twitter4J on GAE/J. I am saving Twitter and Request Token objects in session so that to be used after call back. I have two servlets. IndexServlet sets session and HomeServlet get from session (hits on call back by twitter oAuth). If I comment out session handling lines in both servlets then call backs works fine. Please suggest any workaround. I am sharing my code here. IndexServlet.java Twitter twitter = new Twitter(); twitter.setOAuthConsumer("<masked>", "<masked>"); RequestToken requestToken = null; try { requestToken = twitter.getOAuthRequestToken(); log.info("OAuth token has been taken"); } catch (TwitterException e) { log.warning(e.toString()); } HttpSession session = request.getSession(); if (session.getAttribute("twitter")==null){ session.setAttribute("twitter", twitter); out.println("-----------------------------> session is set"); } if (session.getAttribute("token")==null){ session.setAttribute("token", requestToken); out.println("-----------------------------> session is set"); } String authUrl = requestToken.getAuthorizationURL(); HomeServlet.java HttpSession session = request.getSession(); twitter = (Twitter)session.getAttribute("twitter"); r = (RequestToken)session.getAttribute("token"); twitter.setOAuthAccessToken(r.getAccessToken()); twitter.updateStatus("Hello World!"); Exception javax.servlet.ServletException: java.lang.ArrayStoreException: [Ljava.lang.String; at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:239) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:313) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:830) at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:139) at com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:235) at com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:4950) at com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:4948) at com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java:24) at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:359) at com.google.net.rpc.impl.Server$2.run(Server.java:823) at com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:56)

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  • Custom Monitor Resolution not recognized by Java

    - by Angie
    My weird monitor's native resolution isn't recognized by Windows, so I have to set a custom resolution for it. The problem is that java doesn't recognize it since it's not on Win7's "approved" list, so full-screen mode gets "stuck". Netbeans comes out of full-screen fine, so there has to be a way around this. Anyone know it? This example reproduces the issue: package resolutionexample; import java.awt.Dimension; import java.awt.DisplayMode; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import javax.swing.JFrame; import javax.swing.SwingUtilities; public class Main { public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable(){ public void run() { GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice gd = ge.getDefaultScreenDevice(); DisplayMode currentDM = gd.getDisplayMode(); boolean currentInAvailable = false; System.out.println("Available resolutions:"); for ( DisplayMode availDM : gd.getDisplayModes() ){ //System.out.println(availDM.getWidth() + "x" + availDM.getHeight()); if ( availDM.equals(currentDM) ){ currentInAvailable = true; } } System.out.println("Current resolution: " + currentDM.getWidth() + "x" + currentDM.getHeight() ); System.out.println("Current in available: " + currentInAvailable); JFrame frame = new JFrame("Resolution Bug Example"); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); if ( !gd.isFullScreenSupported() ){System.exit(0);} gd.setFullScreenWindow(frame); gd.setFullScreenWindow(null); } }); } } Output running 1680x1050 (the monitor's wonky native resolution): run: Available resolutions: Current resolution: 1680x1050 Current in available: false Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Invalid display mode at sun.awt.Win32GraphicsDevice.setDisplayMode(Win32GraphicsDevice.java:393) at sun.awt.Win32GraphicsDevice.setFullScreenWindow(Win32GraphicsDevice.java:329) at resolutionexample.Main$1.run(Main.java:43) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) BUILD SUCCESSFUL (total time: 2 seconds) Output if I set my resolution to 1024x768 before running: run: Available resolutions: Current resolution: 1024x768 Current in available: true BUILD SUCCESSFUL (total time: 2 seconds)

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  • Error while Trying to Hook "TerminateProcess" Function. Target Process crashes. Can anyone help me

    - by desaiparth
    Debugging with visual studio 2005 The following Error Displayed :Unhandled exception at 0x00000000 in procexp.exe: 0xC0000005: Access violation reading location 0x00000000. And Thread Information: 2704 Win32 Thread 00000000 Normal 0 extern "C" VDLL2_API BOOL WINAPI MyTerminateProcess(HANDLE hProcess,UINT uExitCode) { SetLastError(5); return FALSE; } FARPROC HookFunction(char *UserDll,FARPROC pfn,FARPROC HookFunc) { DWORD dwSizeofExportTable=0; DWORD dwRelativeVirtualAddress=0; HMODULE hm=GetModuleHandle(NULL); FARPROC pfnOriginalAddressToReturn; PIMAGE_DOS_HEADER pim=(PIMAGE_DOS_HEADER)hm; PIMAGE_NT_HEADERS pimnt=(PIMAGE_NT_HEADERS)((DWORD)pim + (DWORD)pim-e_lfanew); PIMAGE_DATA_DIRECTORY pimdata=(PIMAGE_DATA_DIRECTORY)&(pimnt-OptionalHeader.DataDirectory); PIMAGE_OPTIONAL_HEADER pot=&(pimnt-OptionalHeader); PIMAGE_DATA_DIRECTORY pim2=(PIMAGE_DATA_DIRECTORY)((DWORD)pot+(DWORD)104); dwSizeofExportTable=pim2-Size; dwRelativeVirtualAddress=pim2-VirtualAddress; char *ascstr; PIMAGE_IMPORT_DESCRIPTOR pimexp=(PIMAGE_IMPORT_DESCRIPTOR)(pim2-VirtualAddress + (DWORD)pim); while(pimexp-Name) { ascstr=(char *)((DWORD)pim + (DWORD)pimexp-Name); if(strcmpi(ascstr,UserDll) == 0) { break; } pimexp++; } PIMAGE_THUNK_DATA pname=(PIMAGE_THUNK_DATA)((DWORD)pim+(DWORD)pimexp-FirstThunk); LPDWORD lpdw=&(pname-u1.Function); DWORD dwError=0; DWORD OldProtect=0; while(pname-u1.Function) { if((DWORD)pname-u1.Function == (DWORD)pfn) { lpdw=&(pname-u1.Function); VirtualProtect((LPVOID)lpdw,sizeof(DWORD),PAGE_READWRITE,&OldProtect); pname-u1.Function=(DWORD)HookFunc; VirtualProtect((LPVOID)lpdw,sizeof(DWORD),PAGE_READONLY,&OldProtect); return pfn; } pname++; } return (FARPROC)0; } FARPROC CallHook(void) { HMODULE hm=GetModuleHandle(TEXT("Kernel32.dll")); FARPROC fp=GetProcAddress(hm,"TerminateProcess"); HMODULE hm2=GetModuleHandle(TEXT("vdll2.dll")); FARPROC fpHook=GetProcAddress(hm2,"MyTerminateProcess"); dwAddOfTerminateProcess=HookFunction("Kernel32.dll",fp,fpHook); if(dwAddOfTerminateProcess == 0) { MessageBox(NULL,TEXT("Unable TO Hook Function."),TEXT("Parth"),MB_OK); } else { MessageBox(NULL,TEXT("Success Hooked."),TEXT("Parth"),MB_OK); } return 0; } Thanks in advance for any help.

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  • SQLite3 table not accepting INSERT INTO statements. The table is created, and so is the database, but nothing is passed into it

    - by user1460029
    <?php try { //open the database $db = new PDO('sqlite:music.db'); $db->exec("DELETE from Music;"); $db->exec("INSERT INTO Music(Title, Author, ReleaseDate) VALUES ('Whatd I Say', 'Ray Charles', '1956');" . "INSERT INTO Music(Title, Author, ReleaseDate) VALUES ('Smells Like Teen Spirit.', 'Nirvana', '1991');" . "INSERT INTO Music(Title, Author, ReleaseDate) VALUES ('Hey Jude', 'The Beatles', '1968');" . "INSERT INTO Music(Title, Author, ReleaseDate) VALUES ('Johnny B. Goode', 'Chuck Berry', '1958');" . "INSERT INTO Music(Title, Author, ReleaseDate) VALUES ('Good Vibrations', 'The Beach Boys', '1966');" . "INSERT INTO Music(Title, Author, ReleaseDate) VALUES ('Respect', 'Aretha Franklin', '1967');" . "INSERT INTO Music(Title, Author, ReleaseDate) VALUES ('Whats Going On', 'Marvin Gaye', '1971');" . "INSERT INTO Music(Title, Author, ReleaseDate) VALUES ('Imagine', 'John Lennon', '1971');" . "INSERT INTO Music(Title, Author, ReleaseDate) VALUES ('(I Cant Get No) Satisfaction', 'Rolling Stones', '1965');" . "INSERT INTO Music(Title, Author, ReleaseDate) VALUES ('Like A Rolling Stone', 'Bob Dylan', '1965');"); //now output the data to a simple html table... //example of specifier --> WHERE First=\'Josh\'; <-- print "<table border=1>"; print "<tr><td>Title</td><td>Author</td><td>Y.O.P.</td></tr>"; $result = $db->query('SELECT * FROM Music '); foreach($result as $row) { print "<td>".$row['Title']."</td>"; print "<td>".$row['Author']."</td>"; print "<td>".$row['ReleaseDate']."</td></tr>"; } print "</table>"; $db = NULL; } catch(PDOException $e) { print 'Exception : '.$e->getMessage(); } ?> I am not sure why nothing is being inserted into the table. The file 'music.db' exists in the right path. For the record, I can only use SQlite3, no SQL allowed. PHP is allowed, so is SQLite3.

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  • jsp pageing problem

    - by user93796
    i am using the redy made paging tags.B But it give me a error of null pontinter exception. the first page is displayed correctly.But when i click next it gives the error <%@ taglib uri="http://jsptags.com/tags/navigation/pager" prefix="pg" % <% Iterator i = null; Set tutorials = (Set ) request.getAttribute("tut_lst"); request.setAttribute("tut_lst",tutorials); i = tutorials.iterator(); // error occus here % <% while(i.hasNext()) { Tutorials t = (Tutorials)i.next(); % <BR> <a href ="down?tid=<%out.println(t.getUploadid() );%> "> <%out.println(t.getFilename()); %> </a></td> </pg:item> <% } % <pg:first> <a href="<%= pageUrl %>">[ (<%= pageNumber %>) |&lt; Previous ]</a> </pg:first> <pg:prev> <a href="<%= pageUrl %>">[ (<%= pageNumber %>) &lt;&lt; Previous ]</a> </pg:prev> <pg:pages> <a href="<%= pageUrl %>"><%= pageNumber %></a> </pg:pages> <pg:next> <a href="<%= pageUrl %>">[ Next &gt;&gt; (<%= pageNumber %>) ]</a> </pg:next> <pg:last> <a href="<%= pageUrl %>">[ Last &gt;| (<%= pageNumber %>) ]</a> </pg:last>

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  • Complex Entity Framework linked-graphs issue: how to limit change set / break the graph?

    - by Hightechrider
    I have an EDMX containing Sentences, and Words, say and a Sentence contains three Words, say. Appropriate FK relationships exist between the tables. I create some words: Word word1 = new Word(); Word word2 = ... I build a Sentence: Sentence x = new Sentence (word1, word2, word3); I build another Sentence: Sentence y = new Sentence (word1, word4, word5); I try to save x to the database, but EF builds a change set that includes everything, including y, word4 and word5 that aren't ready to save to the database. When SaveChanges() happens it throws an exception: Unable to determine the principal end of the ... relationship. Multiple added entities may have the same primary key. I think it does this because Word has an EntityCollection<Sentence> on it from the FK relationship between the two tables, and thus Sentence y is inextricably linked to Sentence x through word1. So I remove the Navigation Property Sentences from Word and try again. It still tries to put the entire graph into the change set. What suggestions do the Entity Framework experts have for ways to break this connection. Essentially what I want is a one-way mapping from Sentence to Word; I don't want an EntityCollection<Sentence> on Word and I don't want the object graph to get intertwined like this. Code sample: This puts two sentences into the database because Verb1 links them and EF explores the entire graph of existing objects and added objects when you do Add/SaveChanges. Word subject1 = new Word(){ Text = "Subject1"}; Word subject2 = new Word(){ Text = "Subject2"}; Word verb1 = new Word(){ Text = "Verb11"}; Word object1 = new Word(){ Text = "Object1"}; Word object2 = new Word(){ Text = "Object2"}; Sentence s1 = new Sentence(){Subject = subject1, Verb=verb1, Object=object1}; Sentence s2 = new Sentence(){Subject=subject2, Verb=verb1, Object=object2}; context.AddToSentences(s1); context.SaveChanges(); foreach (var s in context.Sentences) { Console.WriteLine(s.Subject + " " + s.Verb + " " + s.Object); }

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  • PHP sessions and class members.

    - by JDW
    Ok, messing about with classes in PHP and can't get it to work the way I'm used to as a C++/Java-guy. In the "_init" funtion, if I run a query at the "// query works here" line", everythong works, but in the "getUserID" function, all that happens is said warning... "getUserID" gets called from login.php (they are in the same dir): login.php <?php include_once 'sitehandler.php'; include_once 'dbhandler.php'; session_start(); #TODO: Safer input handling $t_userName = $_POST["name"]; $t_userId = $_SESSION['handler']['db']->getUserID($t_userName); if ($t_userId != -1) { $_SESSION['user']['name'] = $t_userName; $_SESSION['user']['id'] = $t_userId; } //error_log("user: " . $_SESSION['user']['name'] . ", id: ". $_SESSION['user']['id']); header("Location: " . $_SERVER["HTTP_REFERER"]); ? dbhandler.php <?php include_once 'handler.php'; class DBHandler extends HandlerAbstract { private $m_handle; function __construct() { parent::__construct(); } public function test() { #TODO: isdir liquibase #TODO: isfile liquibase-195/liquibase + .bat + execrights $this->m_isTested = true; } public function _init() { if (!$this->isTested()) $this->test(); if (!file_exists('files/data.db')) { #TODO: How to to if host is Windows based? exec('./files/liquibase-1.9.5/liquibase --driver=org.sqlite.JDBC --changeLogFile=files/data_db.xml --url=jdbc:sqlite:files/data.db update'); #TODO: quit if not success } #TODO: Set with default data try { $this->m_handle = new SQLite3('files/data.db'); } catch (Exception $e) { die("<hr />" . $e->getMessage() . "<hr />"); } // query works here $this->m_isSetup = true; } public function teardown() { } public function getUserID($name) { // PHP Warning: SQLite3::prepare(): The SQLite3 object has not been correctly initialised in $t_statement = $this->m_handle->prepare("SELECT id FROM users WHERE name = :name"); $t_statement->bindValue(":name", $name, SQLITE3_TEXT); $t_result = $t_statement->execute(); //var_dump($this->m_handle); return ($t_result)? (int)$t_result['id']: -1; } }

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  • Turning off ASP.Net WebForms authentication for one sub-directory

    - by Keith
    I have a large enterprise application containing both WebForms and MVC pages. It has existing authentication and authorisation settings that I don't want to change. The WebForms authentication is configured in the web.config: <authentication mode="Forms"> <forms blah... blah... blah /> </authentication> <authorization> <deny users="?" /> </authorization> Fairly standard so far. I have a REST service that is part of this big application and I want to use HTTP authentication instead for this one service. So, when a user attempts to get JSON data from the REST service it returns an HTTP 401 status and a WWW-Authenticate header. If they respond with a correctly formed HTTP Authorization response it lets them in. The problem is that WebForms overrides this at a low level - if you return 401 (Unauthorised) it overrides that with a 302 (redirection to login page). That's fine in the browser but useless for a REST service. I want to turn off the authentication setting in the web.config: <location path="rest"> <system.web> <authentication mode="None" /> <authorization><allow users="?" /></authorization> </system.web> </location> The authorisation bit works fine, but when I try to change the authentication I get an exception: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. I'm configuring this at application level though - it's in the root web.config How do I override the authentication so that all of the rest of the site uses WebForms authentication and this one directory uses none? This is similar to another question: 401 response code for json requests with ASP.NET MVC, but I'm not looking for the same solution - I don't want to just remove the WebForms authentication and add new custom code globally, there's far to much risk and work involved. I want to change just the one directory in configuration.

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  • retrieving information from web service calls

    - by Monte Chan
    Hi all, I am trying to retrieve information from a web service call. The following is what I have so far. In my text view, it is showing Map {item=anyType{key=TestKey; value=2;}; item=anyType{key=TestField; value=adsfasd; };} When I ran that in the debugger, I can see the information above in the variable, tempvar. But the question is, how do I retrieve the information (i.e. the actual values of "key" and "value" in each of the array positions)? Yes, I know there is a lot going on in onCreate and I will fix it later. Thanks in advance, Monte My codes are as follows, import java.util.Vector; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; import org.ksoap2.SoapEnvelope; import org.ksoap2.serialization.SoapObject; import org.ksoap2.serialization.SoapSerializationEnvelope; import org.ksoap2.transport.AndroidHttpTransport; public class ViewHitUpActivity extends Activity { private static final String SOAP_ACTION = "test_function"; private static final String METHOD_NAME = "test_function"; private static final String NAMESPACE = "http://www.monteandjanicechan.com/"; private static final String URL = "http://www.monteandjanicechan.com/ws/test_ws.cfc?wsdl"; // private Object resultRequestSOAP = null; private TextView tv; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); tv = (TextView)findViewById(R.id.people_view); //SoapObject request.addProperty("test_item", "1"); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); envelope.setOutputSoapObject(request); AndroidHttpTransport androidHttpTransport = new AndroidHttpTransport(URL); try { androidHttpTransport.call(SOAP_ACTION, envelope); /* resultRequestSOAP = envelope.getResponse(); Vector tempResult = (Vector) resultRequestSOAP("test_functionReturn"); */ SoapObject resultsRequestSOAP = (SoapObject) envelope.bodyIn; Vector tempResult = (Vector) resultsRequestSOAP.getProperty("test_functionReturn"); int testsize = tempResult.size(); // SoapObject test = (SoapObject) tempResult.get(0); //String[] results = (String[]) resultRequestSOAP; Object tempvar = tempResult.elementAt(1); tv.setText(tempvar.toString()); } catch (Exception aE) { aE.printStackTrace (); tv.setText(aE.getClass().getName() + ": " + aE.getMessage()); } } }

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  • casting, converting, and input from textbox controls

    - by Matt
    Working on some .aspx.cs code and decided I would forget how to turn a textbox value into a useable integer or decimal. Be warned I'm pretty new to .asp. Wish I could say the same for c sharp. So the value going into my textbox (strawberryp_textbox) is "1" which I presume I can access with the .text property. Which I then parse into a int. The Error reads Format Exception was unhandled by user code. My other question is can I do operations on a session variable? protected void submit_order_button_Click(object sender, EventArgs e) { int strawberryp; int strawberrys; decimal money1 = decimal.Parse(moneybox1.Text); decimal money2 = decimal.Parse(moneybox2.Text); decimal money3 = decimal.Parse(moneybox3.Text); decimal money4 = decimal.Parse(moneybox4.Text); decimal money5 = decimal.Parse(moneybox5.Text); strawberryp = int.Parse(strawberryp_Textbox.Text); //THE PROBLEM RIGHT HERE! strawberrys = int.Parse(strawberrys_Textbox.Text); // Needs fixed int strawberryc = int.Parse(strawberryc_Textbox.Text); //fix int berryp = int.Parse(berryp_Textbox.Text); //fix int raspberryp = int.Parse(raspberryp_Textbox.Text); /fix decimal subtotal = (money1 * strawberryp) + (money2 * strawberrys) + (money3 * strawberryc) + (money4 * berryp) + (money5 * raspberryp); //check to see if you can multiply decimal and int to get a deciaml!! Session["passmysubtotal"] = subtotal; //TextBox2.Text; (strawberryp_Textbox.Text);//TextBox4.Text; add_my_order_button.Enabled = true; add_my_order_button.Visible = true; submit_order_button.Enabled = false; submit_order_button.Visible = false; strawberryp_Textbox.ReadOnly = false; strawberrys_Textbox.ReadOnly = false; strawberryc_Textbox.ReadOnly = false; berryp_Textbox.ReadOnly = false; raspberryp_Textbox.ReadOnly = false; Response.Redirect("reciept.aspx"); } Thanks for the help

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  • AD-DirectoryServices: .NET2.0 - Speaking architecture, approach and best practices... Suggestions?

    - by Will Marcouiller
    I've been mandated to write an application to migrate the Active Directory access models to another environment. Here's the context: I'm stuck with VB.NET 2005 and .NET Framework 2.0; The application must use the Windows authenticated user to manage AD; The objects I have to handle are Groups, Users and OrganizationalUnits; I intend to use the Façade design pattern to provider ease of use and a fully reusable code; I plan to write a factory for each of the objects managed (group, ou, user); The use of Attributes should be useful here, I guess; As everything is about the DirectoryEntry class when accessing the AD, it seems a good candidate for generic types. Obligatory features: User creates new OUs manually; User creates new group manually; User creates new user (these users are services accounts) manually; Application reads an XML file which contains the OUs, groups and users to create; Application informs the user about the OUs, groups and users that shall be created; User specifies the domain environment where to migrate the XML input file designated objects; User makes changes if needed, and launches the task operations; Application performs required by the XML input file operations against the underlying AD as specified by the user; Application informs the user upon completion. Linear features: User fetches OUs, groups, users; User changes OUs, groups, users; User deletes OUs, groups, users; The application logs AD entries and operations performed, plus errors and exceptions; Nice-to-have features: Application rollbacks operations on error or exception. I've been working for weeks now to get acquainted with the AD and the System.DirectoryServices assembly. But I don't seem to find a way to be fully satisfied with what I'm doing and always looking for better. I have studied Bret de Smet's Linq to AD on CodePlex, but then again, I can't use it as I'm stuck with .NET 2.0, so no Linq! But I've learned about Attributes, and seen that he's working with generic types as he codes a DirectorySource class to perform the operations for OUs, groups and users. I have been able to add groups to the AD; I have been able to add users to the AD; The created user is automatically disabled? I seem to get confused with the use of a LDAP path to add objects. For instance, one needs two instances of a System.DirectoryServices.DirectoryEntry class to add a group, for instance. Why this? Any suggestions? Thanks for any help, code sample, ideas, architural solution, everything!

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  • Loading a SWF dynamically causes previously loaded SWFs to misbehave

    - by Aaron
    I have run into a very strange problem with Flash and Flex. It appears that under certain circumstances, movie clips from a SWF loaded at runtime (using Loader) cannot be instantiated if another SWF has been loaded in the mean time. Here is the complete code for a program that reproduces the error. It is compiled using mxmlc, via Ensemble Tofino: package { import flash.display.*; import flash.events.*; import flash.net.*; import flash.system.*; public class DynamicLoading extends Sprite { private var testAppDomain:ApplicationDomain; public function DynamicLoading() { var request:URLRequest = new URLRequest("http://localhost/content/test.swf"); var loader:Loader = new Loader(); loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onTestLoadComplete); loader.load(request); } private function onTestLoadComplete(e:Event):void { var loaderInfo:LoaderInfo = LoaderInfo(e.target); testAppDomain = loaderInfo.applicationDomain; // To get the error, uncomment these lines... //var request:URLRequest = new URLRequest("http://localhost/content/tiny.swf"); //var loader:Loader = new Loader(); //loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onTinyLoadComplete); //loader.load(request); // ...and comment this one: onTinyLoadComplete(); } private function onTinyLoadComplete(e:Event = null):void { var spriteClass:Class = Class(testAppDomain.getDefinition("TopSymbol")); var sprite:Sprite = Sprite(new spriteClass()); sprite.x = sprite.y = 200; addChild(sprite); } } } With the second loading operation commented out as shown above, the code works. However, if the second loading operation is uncommented and onTinyLoadComplete runs after the second SWF is loaded, the line containing new spriteClass() fails with the following exception: TypeError: Error #1034: Type Coercion failed: cannot convert flash.display::MovieClip@2dc8ba1 to SubSymbol. at flash.display::Sprite/constructChildren() at flash.display::Sprite() at flash.display::MovieClip() at TopSymbol() at DynamicLoading/onTinyLoadComplete()[C:\Users\...\TestFlash\DynamicLoading.as:38] test.swf and tiny.swf were created in Flash CS4. test.swf contains two symbols, both exported for ActionScript, one called TopSymbol and one called SubSymbol. SubSymbol contains a simple graphic (a scribble) and TopSymbol contains a single instance of SubSymbol. tiny.swf contains nothing; it is the result of publishing a new, empty ActionScript 3 project. If I modify test.swf so that SubSymbol is not exported for ActionScript, the error goes away, but in our real project we need the ability to dynamically load sprite classes that contain other, exported sprite classes as children. Any ideas as to what is causing this, or how to fix it?

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  • Performance tuning of a Hibernate+Spring+MySQL project operation that stores images uploaded by user

    - by Umar
    Hi I am working on a web project that is Spring+Hibernate+MySQL based. I am stuck at a point where I have to store images uploaded by a user into the database. Although I have written some code that works well for now, but I believe that things will mess up when the project would go live. Here's my domain class that carries the image bytes: @Entity public class Picture implements java.io.Serializable{ long id; byte[] data; ... // getters and setters } And here's my controller that saves the file on submit: public class PictureUploadFormController extends AbstractBaseFormController{ ... protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object command, BindException errors) throws Exception{ MutlipartFile file; // getting MultipartFile from the command object ... // beginning hibernate transaction ... Picture p=new Picture(); p.setData(file.getBytes()); pictureDAO.makePersistent(p); // this method simply calls getSession().saveOrUpdate(p) // committing hiernate transaction ... } ... } Obviously a bad piece of code. Is there anyway I could use InputStream or Blob to save the data, instead of first loading all the bytes from the user into the memory and then pushing them into the database? I did some research on hibernate's support for Blob, and found this in Hibernate In Action book: java.sql.Blob and java.sql.Clob are the most efficient way to handle large objects in Java. Unfortunately, an instance of Blob or Clob is only useable until the JDBC transaction completes. So if your persistent class defines a property of java.sql.Clob or java.sql.Blob (not a good idea anyway), you’ll be restricted in how instances of the class may be used. In particular, you won’t be able to use instances of that class as detached objects. Furthermore, many JDBC drivers don’t feature working support for java.sql.Blob and java.sql.Clob. Therefore, it makes more sense to map large objects using the binary or text mapping type, assuming retrieval of the entire large object into memory isn’t a performance killer. Note you can find up-to-date design patterns and tips for large object usage on the Hibernate website, with tricks for particular platforms. Now apparently the Blob cannot be used, as it is not a good idea anyway, what else could be used to improve the performance? I couldn't find any up-to-date design pattern or any useful information on Hibernate website. So any help/recommendations from stackoverflowers will be much appreciated. Thanks

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  • Design time error - multiple controls with the same Id

    - by ilivewithian
    I'm using VS 2008, I have a very simple page that has a bunch of uniquely named controls. When I try to view it in design mode I get the following error: Error Rendering Control - Label12 An unhanded exception has occurred. Multiple controls with the same ID 'Label1' were found. FindControl requires that controls have unique IDs I've checked the HTML and the designer file and I can only see one control called Label1. What might be causing this? Also, here is the aspx markup I'm having trouble with? <%@ Page Language="vb" AutoEventWireup="false" CodeBehind="CoachingAppearanceReport.aspx.vb" Inherits="AcademyPro.CoachingAppearanceReport" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> <div id="appearanceDetail" class="Left CriteriaContainer"> <asp:Label ID="Label1" runat="server" Text="Appearance Type" AssociatedControlID="ddlAppearanceType" /> <asp:DropDownList ID="ddlAppearanceType" runat="server" CssClass="AppType" OnDataBound="ddlAppearanceType_DataBound" DataSourceID="odsAppearanceType" DataTextField="AppearanceType" DataValueField="AppearanceTypeCode"> </asp:DropDownList> <asp:RequiredFieldValidator ID="rfvAppearanceType" runat="server" ControlToValidate="ddlAppearanceType" InitialValue="" Text="*" ErrorMessage="The appearance type must be selected" /> <asp:Label ID="lblAppearanceType" runat="server" /> <br /> <div class="SubSettings"> <asp:Label ID="Label12" runat="server" Text="Subbed for" AssociatedControlID="ddlSubbedFor" /> <asp:DropDownList ID="ddlSubbedFor" runat="server" OnDataBound="ddlSubbedFor_DataBound" DataSourceID="odsPlayersInAgeGroup" DataTextField="PlayerName" DataValueField="PlayerID"> </asp:DropDownList> <asp:Label ID="lblSubbedFor" runat="server" /> <br /> <asp:Label ID="Label13" runat="server" Text="Mins" AssociatedControlID="txtSubMins" /> <asp:TextBox ID="txtSubMins" runat="server" MaxLength="3" CssClass="TinyWidth" /> <asp:Label ID="lblSubMins" runat="server" /> </div> </div> </ContentTemplate> </asp:UpdatePanel> </form> </body> </html>

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  • A continued saga of C# interoprability with unmanaged C++

    - by Gilad
    After a day of banging my head against the wall both literally and metaphorically, I plead for help: I have an unmanaged C++ project, which is compiled as a DLL. Let's call it CPP Project. It currently works in an unmanaged environment. In addition, I have created a WPF project, that shall be called WPF Project. This project is a simple and currently almost empty project. It contains a single window and I want it to use code from Project 1. For that, I have created a CLR C++ project, which shall be called Interop Project and is also compiled as a DLL. For simplicity I will attach some basic testing code I have boiled down to the basics. CPP Project has the following two testing files: tester.h #pragma once extern "C" class __declspec(dllexport) NativeTester { public: void NativeTest(); }; tester.cpp #include "tester.h" void NativeTester::NativeTest() { int i = 0; } Interop Project has the following file: InteropLib.h #pragma once #include <tester.h> using namespace System; namespace InteropLib { public ref class InteropProject { public: static void Test() { NativeTester nativeTester; nativeTester.NativeTest(); } }; } Lastly, WPF Project has a single window refrencing Interop Project: MainWindow.xaml.cs using System; using System.Windows; using InteropLib; namespace AppGUI { public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); InteropProject.Test(); } } } And the XAML itself has an empty window (default created). Once I am trying to run the WPF project, I get the following error: System.Windows.Markup.XamlParseException: 'The invocation of the constructor on type 'AppGUI.MainWindow' that matches the specified binding constraints threw an exception.' Line number '3' and line position '9'. --- System.IO.FileNotFoundException: Could not load file or assembly 'InteropLib.dll' or one of its dependencies. The specified module could not be found. at AppGUI.MainWindow..ctor() Interestingly enough, if I do not export the class from CPP Project, I do not get this error. Say, if i change tester.h to: #pragma once class NativeTester { public: void NativeTest() { int i = 0; } }; However, in this case I cannot use my more complex classes. If I move my implementation to a cpp file like before, I get unresolved linkage errors due to my not exporting my code. The C++ code I want to actually use is large and has many classes and is object oriented, so I can't just move all my implementation to the h files. Please help me understand this horrific error I've been trying resolve without success. Thanks.

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  • Call asp.net web service from php

    - by SamB09
    Hi im calling an aps.net web service from a php service. The service searches both databases with a search parameter. Im not sure how to pass a search parameter to the asp.net service. Code is below. ( there is no search paramter currently but im just interested in how it would be passed to the asp.net service) $link = mysql_connect($host, $user, $passwd); mysql_select_db($dbName); $query = 'SELECT firstname, surname, phone, location FROM staff ORDER BY surname'; $result = mysql_query($query,$link); // if there is a result if ( mysql_num_rows($result) > 0 ) { // set up a DOM object $xmlDom1 = new DOMDocument(); $xmlDom1->appendChild($xmlDom1->createElement('directory')); $xmlRoot = $xmlDom1->documentElement; // loop over the rows in the result while ( $row = mysql_fetch_row($result) ) { $xmlPerson = $xmlDom1->createElement('staff'); $xmlFname = $xmlDom1->createElement('fname'); $xmlText = $xmlDom1->createTextNode($row[0]); $xmlFname->appendChild($xmlText); $xmlPerson->appendChild($xmlFname); $xmlSname = $xmlDom1->createElement('sname'); $xmlText = $xmlDom1->createTextNode($row[1]); $xmlSname->appendChild($xmlText); $xmlPerson->appendChild($xmlSname); $xmlTel = $xmlDom1->createElement('phone'); $xmlText = $xmlDom1->createTextNode($row[2]); $xmlTel->appendChild($xmlText); $xmlPerson->appendChild($xmlTel); $xmlLoc = $xmlDom1->createElement('loc'); $xmlText = $xmlDom1->createTextNode($row[3]); $xmlLoc->appendChild($xmlText); $xmlPerson->appendChild($xmlLoc); $xmlRoot->appendChild($xmlPerson); } } // // instance a SOAP client to the dotnet web service and read it into a DOM object // (this really should have an exception handler) // $client = new SoapClient('http://stuiis.cms.gre.ac.uk/mk05/dotnet/dataBind01/phoneBook.asmx?WSDL'); $xmlString = $client->getDirectoryDom()->getDirectoryDomResult->any; $xmlDom2 = new DOMDocument(); $xmlDom2->loadXML($xmlString); // merge the second DOM object into the first foreach ( $xmlDom2->documentElement->childNodes as $staffNode ) { $xmlPerson = $xmlDom1->createElement($staffNode->nodeName); foreach ( $staffNode->childNodes as $xmlNode ) { $xmlElement = $xmlDom1->createElement($xmlNode->nodeName); $xmlText = $xmlDom1->createTextNode($xmlNode->nodeValue); $xmlElement->appendChild($xmlText); $xmlPerson->appendChild($xmlElement); } $xmlRoot->appendChild($xmlPerson); } // return result echo $xmlDom

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  • Zend_Test: No default module defined for this application

    - by jiewmeng
    UPDATE 23 Dec I had the problem where Zend Framework complains about "No default module defined for this application". I didn't use Modules and the main app works fine. I finally solved the problem with the help from weierophinney.net Your bootstrap needs to minimally set the controller directory -- do a call to $this->frontController->addControllerDirectory(...) in your appBootstrap() method. I didn't in my example, as my Initialization plugin does that sort of thing for me. The problem is solved by adding the below to setUp() $this->getFrontController()->setControllerDirectory(APPLICATION_PATH . '/controllers'); But now, I have afew other questions: 1. Why does that value not get initialized by application.ini? In application.ini, I have [production] resources.frontController.controllerDirectory = APPLICATION_PATH "/controllers" [testing : production] // didn't change anything regarding modules nor controllers 2. I tried setting the controllerDirectory in bootstrap.php of my unit test, but it does not work $front = Zend_Controller_Front::getInstance(); $front->setControllerDirectory(APPLICATION_PATH . '/controllers'); The only way that works is using setUp(). Why is that? END UPDATE 23 Dec I am getting the above error when unit testing my controller plugins. I am not using any modules. in my bootstrap.php for unit testing, I even tried adding $front = Zend_Controller_Front::getInstance(); $front->setDefaultModule('default'); But it still does not work. Anyways my bootstrap.php looks like this UPDATE: the error looks something like There were 2 errors: 1) Application_Controller_Plugin_AclTest::testAccessToUnauthorizedPageRedirectsToLogin Zend_Controller_Exception: No default module defined for this application D:\ResourceLibrary\Frameworks\PHPFrameworks\Zend\Controller\Dispatcher\Standard.php:391 D:\ResourceLibrary\Frameworks\PHPFrameworks\Zend\Controller\Dispatcher\Standard.php:204 D:\ResourceLibrary\Frameworks\PHPFrameworks\Zend\Controller\Dispatcher\Standard.php:244 D:\ResourceLibrary\Frameworks\PHPFrameworks\Zend\Controller\Front.php:954 D:\ResourceLibrary\Frameworks\PHPFrameworks\Zend\Test\PHPUnit\ControllerTestCase.php:205 D:\Projects\Tickle\tests\application\controllers\plugins\aclTest.php:6 2) Application_Controller_Plugin_AclTest::testAccessToAllowedPageWorks Zend_Controller_Exception: No default module defined for this application D:\ResourceLibrary\Frameworks\PHPFrameworks\Zend\Controller\Dispatcher\Standard.php:391 D:\ResourceLibrary\Frameworks\PHPFrameworks\Zend\Controller\Dispatcher\Standard.php:204 D:\ResourceLibrary\Frameworks\PHPFrameworks\Zend\Controller\Dispatcher\Standard.php:244 D:\ResourceLibrary\Frameworks\PHPFrameworks\Zend\Controller\Front.php:954 D:\ResourceLibrary\Frameworks\PHPFrameworks\Zend\Test\PHPUnit\ControllerTestCase.php:205 D:\Projects\Tickle\tests\application\controllers\plugins\aclTest.php:16 UPDATE I tried adding public function setUp() { $front = Zend_Controller_Front::getInstance(); $front->setDefaultModule('default'); } then 1 part works. public function testAccessToUnauthorizedPageRedirectsToLogin() { // this fails with exception "Zend_Controller_Exception: No default module defined for this application" $this->dispatch('/projects'); $this->assertController('auth'); $this->assertAction('login'); } public function testAccessToAllowedPageWorks() { // this passes $auth = Zend_Auth::getInstance(); $authAdapter = new Application_Auth_Adapter('jiewmeng', 'password'); $auth->authenticate($authAdapter); $this->dispatch('/projects'); $this->assertController('projects'); $this->assertAction('index'); }

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  • How build my own Application Setting

    - by adisembiring
    I want to build a ApplicationSetting for my application. The ApplicationSetting can be stored in a properties file or in a database table. The settings are stored in key-value pairs. E.g. ftp.host = blade ftp.username = dummy ftp.pass = pass content.row_pagination = 20 content.title = How to train your dragon. I have designed it as follows: Application settings reader: interface IApplicationSettingReader { read(); } DatabaseApplicationSettingReader { dao appSettingDao; AppSettings read() { List<AppSettingEntity> listEntity = appSettingsDao.findAll(); Map<String, String> map = new HaspMap<String, String>(); foreach (AppSettingEntity entity : listEntity) { map.put(entity.getConfigName(), entity.getConfigValue()); } return new AppSettings(map); } } DatabaseApplicationSettingReader { dao appSettingDao; AppSettings read() { //read from some properties file return new AppSettings(map); } } Application settings class: AppSettings { private static AppSettings instance; private Map map; Public AppSettings(Map map) { this.map = map; } public static AppSettings getInstance() { if (instance == null) { throw new RuntimeException("Object not configure yet"); } return instance; } public static configure(IApplicationSettingReader reader) { instance = reader.read(); } public String getFtpSetting(String param) { return map.get("ftp." + param); } public String getContentSetting(String param) { return map.get("content." + param); } } Test class: AppSettingsTest { IApplicationSettingReader reader; @Before public void setUp() throws Exception { reader = new DatabaseApplicationSettingReader(); } @Test public void getContentSetting_should_get_content_title() { AppSettings.configure(reader); Instance settings = AppSettings.getInstance(); String title = settings.getContentSetting("title"); assertNotNull(title); Sysout(title); } } My questions are: Can you give your opinion about my code, is there something wrong? I configure my application setting once, while the application start, I configure the application setting with appropriate reader (DbReader or PropertiesReader), I make it singleton. The problem is, when some user edit the database or file directly to database or file, I can't get the changed values. Now, I want to implement something like ApplicationSettingChangeListener. So if the data changes, I will refresh my application settings. Do you have any suggestions how this can be implemented?

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  • Invalid character in a Base-64 string when Concatenating and Url encoding a string

    - by Rob
    I’m trying to write some encryption code that is passed through a Url. For the sake of the issue I’ve excluded the actual encryption of the data and just shown the code causing the problem. I take a salt value, convert it to a byte array and then convert that to a base64 string. This string I concatenate to another base64 string (which was previously a byte array). These two base64 strings are then Url encoded. Here’s my code... using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Security.Cryptography; using System.IO; using System.Web; class RHEncryption { private static readonly Encoding ASCII_ENCODING = new System.Text.ASCIIEncoding(); private static readonly string SECRET_KEY = "akey"; private static string md5(string text) { return BitConverter.ToString(new MD5CryptoServiceProvider().ComputeHash(ASCII_ENCODING.GetBytes(text))).Replace("-", "").ToLower(); } public string UrlEncodedData; public RHEncryption() { // encryption object RijndaelManaged aes192 = new RijndaelManaged(); aes192.KeySize = 192; aes192.BlockSize = 192; aes192.Mode = CipherMode.CBC; aes192.Key = ASCII_ENCODING.GetBytes(md5(SECRET_KEY)); aes192.GenerateIV(); // convert Ivector to base64 for sending string base64IV = Convert.ToBase64String(aes192.IV); // salt value string s = "maryhadalittlelamb"; string salt = s.Substring(0, 8); // convert to byte array // and base64 for sending byte[] saltBytes = ASCII_ENCODING.GetBytes(salt.TrimEnd('\0')); string base64Salt = Convert.ToBase64String(saltBytes); //url encode concatenated base64 strings UrlEncodedData = HttpUtility.UrlEncode(base64Salt + base64IV, ASCII_ENCODING); } public string UrlDecodedData() { // decode the url encode string string s = HttpUtility.UrlDecode(UrlEncodedData, ASCII_ENCODING); // convert back from base64 byte[] base64DecodedBytes = null; try { base64DecodedBytes = Convert.FromBase64String(s); } catch (FormatException e) { Console.WriteLine(e.Message.ToString()); Console.ReadLine(); } return s; } } If I then call the UrlDecodedData method I get a “Invalid character in a Base-64 string” exception. This is generated because the base64Salt variable contains an invalid character (I’m guessing a line termination) but I can’t seem to strip it off.

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  • Active Directory validate service account and user accounts

    - by Padur
    Hello folks I have an issue here, I guess you all know what is AD service account and why it is used for, if not please see the below description ? SSL-Explorer requires a dedicated Active Directory account to use for authenticating AD users. This account serves as a link to your Active Directory database. If the Service Account is not found on your AD database then the SSL-Explorer service will not start. Well I have Active Directory service account details and user submitted login/password details.In the code below I validated service account by giving MEMBER_GRPUP and adminPassword and I check whether the user exists in Active Directory by submitting samaaccountname but my question here is how do I validate the password submitted for that user? I am not sure how to do this, I appreciate if anybody has any suggestions on this. Thanks for your time. public boolean validateUserFromActiveDirectory(String userId) { final String MEMBER_GROUP = "CN=asdadasd,OU=asdasdasd Accounts,OU=adasdas,OU=asdasdas,DC=asdasdas,DC=asdasdas,DC=adasdasd,DC=asdasdasd"; String employeeNumber = ""; final String LDAP_INIT_CTX = "com.sun.jndi.ldap.LdapCtxFactory"; final String LDAP_URL = "ldap://xx-ssssssss.eee.eee.eeeee.eeeee:636"; final String MY_ATTRS[] = { "employeeNumber" }; String adminPassword = "somepassword"; String securityProtocol = "ssl"; boolean isValidUser = false; try { Hashtable env = new Hashtable(); env.put(Context.INITIAL_CONTEXT_FACTORY, LDAP_INIT_CTX); env.put(Context.PROVIDER_URL, LDAP_URL); env.put(Context.SECURITY_AUTHENTICATION, "simple"); env.put(Context.REFERRAL, "follow"); env.put(Context.SECURITY_PRINCIPAL, MEMBER_GROUP); env.put(Context.SECURITY_CREDENTIALS, adminPassword); env.put(Context.SECURITY_PROTOCOL, securityProtocol); //C:\Documents and Settings\yourusername\Local Settings\Temp File tf = File.createTempFile("adentTruststore", ".jks"); tf.deleteOnExit(); byte buffer[] = new byte[0x1000]; ClassLoader cl = JNDI.class.getClassLoader(); InputStream in = cl.getResourceAsStream( "someTruststore.jks"); FileOutputStream out = new FileOutputStream(tf); int cnt; while ((cnt = in.read(buffer)) != -1) out.write(buffer, 0, cnt); in.close(); out.close(); System.setProperty("javax.net.ssl.trustStore", tf .getAbsolutePath()); DirContext context = new InitialLdapContext(env, null); SearchControls searchControls = new SearchControls(); searchControls.setSearchScope(SearchControls.SUBTREE_SCOPE); NamingEnumeration results = context.search( "XX=ent,XX=abc,XX=aaaaa,XX=aaaa", "(sAMAccountName=" + userId + ")", searchControls); if (results != null && results.hasMore()) { //some logic } } } catch (Exception e) { e.printStackTrace(); } return isValidUser; }

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  • Getting a KeyError in DB backend of django-digest

    - by rtmie
    I have just started to integrate django_digest into my app. As a start I have added the @httpdigest decorator to one of my views. If I try to connect to it I get a KeyError exception thrown in django_digest/backend/db.py . Depending on which db I configure I get a different KeyError in a different location. I am using Django 1.2.1, with MySql (also tested with sqlite). I am using the default values for all the settings options. As far as I can see I have followed all instructions but am struggling all day with this. I am using the repository versions of django-digest and python-digest. Any steer would be greatly appreciated. Tracebacks for sqlite and mysql below: with sqlite: Traceback (most recent call last): File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/servers/basehttp.py", line 674, in __call__ return self.application(environ, start_response) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/handlers/wsgi.py", line 248, in __call__ signals.request_finished.send(sender=self.__class__) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/dispatch/dispatcher.py", line 162, in send response = receiver(signal=self, sender=sender, **named) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django_digest-1.8-py2.5.egg/django_digest/backend/db.py", line 16, in close_connection _connection.close() File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/db/backends/sqlite3/base.py", line 186, in close if self.settings_dict['NAME'] != ":memory:": KeyError: 'NAME' with mysql: Traceback (most recent call last): File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/servers/basehttp.py", line 674, in __call__ return self.application(environ, start_response) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/handlers/wsgi.py", line 241, in __call__ response = self.get_response(request) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/handlers/base.py", line 142, in get_response return self.handle_uncaught_exception(request, resolver, exc_info) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/handlers/base.py", line 166, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/handlers/base.py", line 80, in get_response response = middleware_method(request) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django_digest-1.8-py2.5.egg/django_digest/middleware.py", line 13, in process_request if (not self._authenticator.authenticate(request) and File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django_digest-1.8-py2.5.egg/django_digest/__init__.py", line 86, in authenticate partial_digest = self._account_storage.get_partial_digest(digest_response.username) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django_digest-1.8-py2.5.egg/django_digest/backend/db.py", line 97, in get_partial_digest cursor = get_connection().cursor() File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/db/backends/__init__.py", line 75, in cursor cursor = self._cursor() File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/db/backends/mysql/base.py", line 281, in _cursor if settings_dict['USER']: KeyError: 'USER'

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  • Stuck on an ASP.NET/WCF WSDL Parsing Error

    - by Vaccano
    I have a WCF Web Service that my ASP.NET app uses. It has been working fine for quite some time. I just added in a Dev Express Grid (and the Dev Express DLLs) and a new page that uses them and now I am getting parsing errors on the WSDL. But the weird part is that it works fine on my machine but fails on the web server machine. (Both are connecting to the same web services WSDL.) Here is the error message I am getting: Server Error in '/MyWebAppWebDev' Application. -------------------------------------------------------------------------------- Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Reference.svcmap: Failed to generate code for the service reference 'MyWebAppService'. Cannot import wsdl:portType Detail: An exception was thrown while running a WSDL import extension: System.ServiceModel.Description.DataContractSerializerMessageContractImporter Error: Referenced type 'WebClientApp.MyWebAppService.ReferenceUpdatesDataContract, WebClientApp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' with data contract name 'ReferenceUpdatesDataContract' in namespace 'http://schemas.datacontract.org/2004/07/MyWebAppServiceLibrary.DataContracts' cannot be used since it does not match imported DataContract. Need to exclude this type from referenced types. XPath to Error Source: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:portType[@name='IMyWebAppReferenceDataServiceLib'] Cannot import wsdl:binding Detail: There was an error importing a wsdl:portType that the wsdl:binding is dependent on. XPath to wsdl:portType: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:portType[@name='IMyWebAppReferenceDataServiceLib'] XPath to Error Source: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:binding[@name='MyWebAppServicesDefaultEndpoint'] Cannot import wsdl:port Detail: There was an error importing a wsdl:binding that the wsdl:port is dependent on. XPath to wsdl:binding: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:binding[@name='MyWebAppServicesDefaultEndpoint'] XPath to Error Source: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:service[@name='MyWebAppReferenceDataServiceLib']/wsdl:port[@name='MyWebAppServicesDefaultEndpoint'] Source Error: [No relevant source lines] Source File: /MyWebAppWebDev/App_WebReferences/MyWebAppService/ Line: 1 I am completely stumped on this. I have checked my web.config endpoint address and it is spot on (and notably is not in the error message above). Any ideas would be welcomed. Things I have tried: Giving permissions to C:\Windows\temp to my Website user name Giving permissions to C:\Windows\temp to my App pool user name Checking to see that none of my data contracts are generic and have IsReference=true in them.

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  • Wrong sessionID being used in callback, but only on one particular computer

    - by user210119
    I am writing a Python/Django web application that uses OAuth (for the TwitterAPI, not that it should matter). I am storing a session ID in my login function, and then after using OAuth to get the user's token, I try to retrieve the sessionID in my callback function. The callback function then always fails(throws an exception) because it can't find the OAuth token in the session. Through the debugger, I am able to determine that the session ID that the server is using is incorrect - it does not match the session ID that was stored in the login function. It's therefore unsurprising that the Oauth tokens were not there. The session that appears in the callback was the same one each time (until I tried deleting it - see "things I've tried below"), and it started out as an old session, with some data in it that is from a different django app running on the same server that I hadn't touched in a couple weeks. Here's the kicker: everything I described is an issue only on our production server, and only when connecting to it from my computer. Let me clarify: this only happens with my particular laptop. I can connect to the app just fine from someone else's computer. Other people cannot connect with their accounts on my computer. Furthmore, I can connect just fine to the app when it is running on my localhost using the built-in django webserver, just not to the production server. My setup: my server and local box are running= Django 1.2.0 and Python 2.6.5. My local box is running Snow Leopard and the Django webserver, the server is running Ubuntu, Apache2, and mod-wsgi. For sessions, I am using Django's default session backend (DB). Things I have tried, all to no avail: logging in with a different account, including new accounts that have never OAuthed to this app before Clearing cookies, using incognito mode, using a different web browser on my same computer. Each time, upon inspecting my cookies, the sessionID matched the sessionID in the login function and was different from the sessionID in the callback. deleting the session in the database that appears in the callback function, (the one that appeared to be old data). The callback function still fails, and the sessionID it appears to be using is now a new one using a different session backend (DB-cache, flat file, etc...) restarting the server, my computer, etc. My first question on StackOverflow, so bear with me if I didn't quite follow local conventions. I am just at a loss as to what to even look for - what are the things that could possibly be causing sessions to not work on my particular computer, and (so far!) only my particular computer?

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