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• How to export ECC key and Cert from NSS DB and import into JKS keystore and Oracle Wallet

  - by mv

  How to export ECC key and Cert from NSS DB and import into JKS keystore and Oracle Wallet In this blog I will write about how to extract a cert and key from NSS Db and import it to a JKS Keystore and then import that JKS Keystore into Oracle Wallet. 1. Set Java Home I pointed it to JRE 1.6.0_22 $ export JAVA_HOME=/usr/java/jre1.6.0_22/ 2. Create a self signed ECC cert in NSS DB I created NSS DB with self signed ECC certificate. If you already have NSS Db with ECC cert (and key) skip this step. $export NSS_DIR=/export/home/nss/ $$NSS_DIR/certutil -N -d . $$NSS_DIR/certutil -S -x -s "CN=test,C=US" -t "C,C,C" -n ecc-cert -k ec -q nistp192 -d . 3. Export ECC cert and key using pk12util Use NSS tool pk12util to export this cert and key into a p12 file      $$NSS_DIR/pk12util -o ecc-cert.p12 -n ecc-cert -d . -W password 4. Use keytool to create JKS keystore and import this p12 file 4.1 Import p12 file created above into a JKS keystore $JAVA_HOME/bin/keytool -importkeystore -srckeystore ecc-cert.p12 -srcstoretype PKCS12 -deststoretype JKS -destkeystore ecc.jks -srcstorepass password -deststorepass password -srcalias ecc-cert -destalias ecc-cert -srckeypass password -destkeypass password -v But if an error as shown is encountered, keytool error: java.security.UnrecoverableKeyException: Get Key failed: EC KeyFactory not available java.security.UnrecoverableKeyException: Get Key failed: EC KeyFactory not available        at com.sun.net.ssl.internal.pkcs12.PKCS12KeyStore.engineGetKey(Unknown Source)         at java.security.KeyStoreSpi.engineGetEntry(Unknown Source)         at java.security.KeyStore.getEntry(Unknown Source)         at sun.security.tools.KeyTool.recoverEntry(Unknown Source)         at sun.security.tools.KeyTool.doImportKeyStoreSingle(Unknown Source)         at sun.security.tools.KeyTool.doImportKeyStore(Unknown Source)         at sun.security.tools.KeyTool.doCommands(Unknown Source)         at sun.security.tools.KeyTool.run(Unknown Source)         at sun.security.tools.KeyTool.main(Unknown Source) Caused by: java.security.NoSuchAlgorithmException: EC KeyFactory not available         at java.security.KeyFactory.<init>(Unknown Source)         at java.security.KeyFactory.getInstance(Unknown Source)         ... 9 more 4.2 Create a new PKCS11 provider If you didn't get an error as shown above skip this step. Since we already have NSS libraries built with ECC, we can create a new PKCS11 provider Create ${java.home}/jre/lib/security/nss.cfg as follows: name = NSS     nssLibraryDirectory = ${nsslibdir}    nssDbMode = noDb    attributes = compatibility where nsslibdir should contain NSS libs with ECC support. Add the following line to ${java.home}/jre/lib/security/java.security :      security.provider.9=sun.security.pkcs11.SunPKCS11 ${java.home}/lib/security/nss.cfg Note that those who are using Oracle iPlanet Web Server or Oracle Traffic Director, NSS libs built with ECC are in <ws_install_dir>/lib or <otd_install_dir>/lib. 4.3. Now keytool should work Now you can try the same keytool command and see that it succeeds : $JAVA_HOME/bin/keytool -importkeystore -srckeystore ecc-cert.p12 -srcstoretype PKCS12 -deststoretype JKS -destkeystore ecc.jks -srcstorepass password -deststorepass password -srcalias ecc-cert -destalias ecc-cert -srckeypass password -destkeypass password -v [Storing ecc.jks] 5. Convert JKS keystore into an Oracle Wallet You can export this cert and key from JKS keystore and import it into an Oracle Wallet if you need using orapki tool as shown below. Make sure that orapki you use supports ECC. Also for ECC you MUST use "-jsafe" option. $ orapki wallet create -pwd password  -wallet .  -jsafe $ orapki wallet jks_to_pkcs12 -wallet . -pwd password -keystore ecc.jks -jkspwd password -jsafe AS $orapki wallet display -wallet . -pwd welcome1  -jsafeOracle PKI Tool : Version 11.1.2.0.0Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved.Requested Certificates:User Certificates:Subject:        CN=test,C=USTrusted Certificates:Subject:        OU=Class 3 Public Primary Certification Authority,O=VeriSign\, Inc.,C=USSubject:        CN=GTE CyberTrust Global Root,OU=GTE CyberTrust Solutions\, Inc.,O=GTE Corporation,C=USSubject:        OU=Class 2 Public Primary Certification Authority,O=VeriSign\, Inc.,C=USSubject:        OU=Class 1 Public Primary Certification Authority,O=VeriSign\, Inc.,C=USSubject:        CN=test,C=US As you can see our ECC cert in the wallet. You can follow the same steps for RSA certs as well. 6. References http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=356 http://old.nabble.com/-PATCH-FOR-REVIEW-%3A-Support-PKCS11-cryptography-via-NSS-p25282932.html http://www.mozilla.org/projects/security/pki/nss/tools/pk12util.html

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• Developing Schema Compare for Oracle (Part 3): Ghost Objects

  - by Simon Cooper

  In the previous blog post, I covered how we solved the problem of dependencies between objects and between schemas. However, that isn’t the end of the issue. The dependencies algorithm I described works when you’re querying live databases and you can get dependencies for a particular schema direct from the server, and that’s all well and good. To throw a (rather large) spanner in the works, Schema Compare also has the concept of a snapshot, which is a read-only compressed XML representation of a selection of schemas that can be compared in the same way as a live database. This can be useful for keeping historical records or a baseline of a database schema, or comparing a schema on a computer that doesn’t have direct access to the database. So, how do snapshots interact with dependencies? Inter-database dependencies don't pose an issue as we store the dependencies in the snapshot. However, comparing a snapshot to a live database with cross-schema dependencies does cause a problem; what if the live database has a dependency to an object that does not exist in the snapshot? Take a basic example schema, where you’re only populating SchemaA: SOURCE   TARGET (using snapshot) CREATE TABLE SchemaA.Table1 ( Col1 NUMBER REFERENCES SchemaB.Table1(col1));   CREATE TABLE SchemaA.Table1 ( Col1 VARCHAR2(100)); CREATE TABLE SchemaB.Table1 ( Col1 NUMBER PRIMARY KEY);   CREATE TABLE SchemaB.Table1 ( Col1 VARCHAR2(100)); In this case, we want to generate a sync script to synchronize SchemaA.Table1 on the database represented by the snapshot. When taking a snapshot, database dependencies are followed, but because you’re not comparing it to anything at the time, the comparison dependencies algorithm described in my last post cannot be used. So, as you only take a snapshot of SchemaA on the target database, SchemaB.Table1 will not be in the snapshot. If this snapshot is then used to compare against the above source schema, SchemaB.Table1 will be included in the source, but the object will not be found in the target snapshot. This is the same problem that was solved with comparison dependencies, but here we cannot use the comparison dependencies algorithm as the snapshot has not got any information on SchemaB! We've now hit quite a big problem - we’re trying to include SchemaB.Table1 in the target, but we simply do not know the status of this object on the database the snapshot was taken from; whether it exists in the database at all, whether it’s the same as the target, whether it’s different... What can we do about this sorry state of affairs? Well, not a lot, it would seem. We can’t query the original database, as it may not be accessible, and we cannot assume any default state as it could be wrong and break the script (and we currently do not have a roll-back mechanism for failed synchronizes). The only way to fix this properly is for the user to go right back to the start and re-create the snapshot, explicitly including the schemas of these 'ghost' objects. So, the only thing we can do is flag up dependent ghost objects in the UI, and ask the user what we should do with it – assume it doesn’t exist, assume it’s the same as the target, or specify a definition for it. Unfortunately, such functionality didn’t make the cut for v1 of Schema Compare (as this is very much an edge case for a non-critical piece of functionality), so we simply flag the ghost objects up in the sync wizard as unsyncable, and let the user sort out what’s going on and edit the sync script as appropriate. There are some things that we do do to alleviate somewhat this rather unhappy situation; if a user creates a snapshot from the source or target of a database comparison, we include all the objects registered from the database, not just the ones in the schemas originally selected for comparison. This includes any extra dependent objects registered through the comparison dependencies algorithm. If the user then compares the resulting snapshot against the same database they were comparing against when it was created, the extra dependencies will be included in the snapshot as required and everything will be good. Fortunately, this problem will come up quite rarely, and only when the user uses snapshots and tries to sync objects with unknown cross-schema dependencies. However, the solution is not an easy one, and lead to some difficult architecture and design decisions within the product. And all this pain follows from the simple decision to allow schema pre-filtering! Next: why adding a column to a table isn't as easy as you would think...

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• Add Widget via Action in Toolbar

  - by Geertjan

  The question of the day comes from Vadim, who asks on the NetBeans Platform mailing list: "Looking for example showing how to add Widget to Scene, e.g. by toolbar button click." Well, the solution is very similar to this blog entry, where you see a solution provided by Jesse Glick for VisiTrend in Boston: https://blogs.oracle.com/geertjan/entry/zoom_capability Other relevant articles to read are as follows: http://netbeans.dzone.com/news/which-netbeans-platform-action http://netbeans.dzone.com/how-to-make-context-sensitive-actions Let's go through it step by step, with this result in the end, a solution involving 4 classes split (optionally, since a central feature of the NetBeans Platform is modularity) across multiple modules: The Customer object has a "name" String and the Droppable capability has a method "doDrop" which takes a Customer object: public interface Droppable {    void doDrop(Customer c);} In the TopComponent, we use "TopComponent.associateLookup" to publish an instance of "Droppable", which creates a new LabelWidget and adds it to the Scene in the TopComponent. Here's the TopComponent constructor: public CustomerCanvasTopComponent() {    initComponents();    setName(Bundle.CTL_CustomerCanvasTopComponent());    setToolTipText(Bundle.HINT_CustomerCanvasTopComponent());    final Scene scene = new Scene();    final LayerWidget layerWidget = new LayerWidget(scene);    Droppable d = new Droppable(){        @Override        public void doDrop(Customer c) {            LabelWidget customerWidget = new LabelWidget(scene, c.getTitle());            customerWidget.getActions().addAction(ActionFactory.createMoveAction());            layerWidget.addChild(customerWidget);            scene.validate();        }    };    scene.addChild(layerWidget);    jScrollPane1.setViewportView(scene.createView());    associateLookup(Lookups.singleton(d));} The Action is displayed in the toolbar and is enabled only if a Droppable is currently in the Lookup: @ActionID(        category = "Tools",        id = "org.customer.controler.AddCustomerAction")@ActionRegistration(        iconBase = "org/customer/controler/icon.png",        displayName = "#AddCustomerAction")@ActionReferences({    @ActionReference(path = "Toolbars/File", position = 300)})@NbBundle.Messages("AddCustomerAction=Add Customer")public final class AddCustomerAction implements ActionListener {    private final Droppable context;    public AddCustomerAction(Droppable droppable) {        this.context = droppable;    }    @Override    public void actionPerformed(ActionEvent ev) {        NotifyDescriptor.InputLine inputLine = new NotifyDescriptor.InputLine("Name:", "Data Entry");        Object result = DialogDisplayer.getDefault().notify(inputLine);        if (result == NotifyDescriptor.OK_OPTION) {            Customer customer = new Customer(inputLine.getInputText());            context.doDrop(customer);        }    }} Therefore, when the Properties window, for example, is selected, the Action will be disabled. (See the Zoomable example referred to in the link above for another example of this.) As you can see above, when the Action is invoked, a Droppable must be available (otherwise the Action would not have been enabled). The Droppable is obtained in the Action and a new Customer object is passed to its "doDrop" method. The above in pictures, take note of the enablement of the toolbar button with the red dot, on the extreme left of the toolbar in the screenshots below: The above shows the JButton is only enabled if the relevant TopComponent is active and, when the Action is invoked, the user can enter a name, after which a new LabelWidget is created in the Scene. The source code of the above is here: http://java.net/projects/nb-api-samples/sources/api-samples/show/versions/7.3/misc/WidgetCreationFromAction Note: Showing this as an MVC example is slightly misleading because, depending on which model object ("Customer" and "Droppable") you're looking at, the V and the C are different. From the point of view of "Customer", the TopComponent is the View, while the Action is the Controler, since it determines when the M is displayed. However, from the point of view of "Droppable", the TopComponent is the Controler, since it determines when the Action, i.e., which is in this case the View, displays the presence of the M.

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• OIM 11g : Multi-thread approach for writing custom scheduled job

  - by Saravanan V S

  In this post I have shared my experience of designing and developing an OIM schedule job that uses multi threaded approach for updating data in OIM using APIs.  I have used thread pool (in particular fixed thread pool) pattern in developing the OIM schedule job. The thread pooling pattern has noted advantages compared to thread per task approach. I have listed few of the advantage here ·         Threads are reused ·         Creation and tear-down cost of thread is reduced ·         Task execution latency is reduced ·         Improved performance ·         Controlled and efficient management of memory and resources used by threads More about java thread pool http://docs.oracle.com/javase/tutorial/essential/concurrency/pools.html The following diagram depicts the high-level architectural diagram of the schedule job that process input from a flat file to update OIM process form data using fixed thread pool approach    The custom scheduled job shared in this post is developed to meet following requirement 1)      Need to process a CSV extract that contains identity, account identifying key and list of data to be updated on an existing OIM resource account. 2)      CSV file can contain data for multiple resources configured in OIM 3)      List of attribute to update and mapping between CSV column to OIM fields may vary between resources The following are three Java class developed for this requirement (I have given only prototype of the code that explains how to use thread pools in schedule task) CustomScheduler.java - Implementation of TaskSupport class that reads and passes the parameters configured on the schedule job to Thread Executor class. package com.oracle.oim.scheduler; import java.util.HashMap; import com.oracle.oim.bo.MultiThreadDataRecon; import oracle.iam.scheduler.vo.TaskSupport; public class CustomScheduler extends TaskSupport {      public void execute(HashMap options) throws Exception {             /*  Read Schedule Job Parameters */             String param1 = (String) options.get(“Parameter1”);             .             int noOfThread = (int) options.get(“No of Threads”);             .             String paramn = (int) options.get(“ParamterN”); /* Provide all the required input configured on schedule job to Thread Pool Executor implementation class like 1) Name of the file, 2) Delimiter 3) Header Row Numer 4) Line Escape character 5) Config and resource map lookup 6) No the thread to create */ new MultiThreadDataRecon(all_required_parameters, noOfThreads).reconcile();       }       public HashMap getAttributes() { return null; }       public void setAttributes() {       } } MultiThreadDataRecon.java – Helper class that reads data from input file, initialize the thread executor and builds the task queue. package com.oracle.oim.bo; import <required file IO classes>; import  <required java.util classes>; import  <required OIM API classes>; import <csv reader api>; public class MultiThreadDataRecon {  private int noOfThreads;  private ExecutorService threadExecutor = null;  public MetaDataRecon(<required params>, int noOfThreads)  {       //Store parameters locally       .       .       this.noOfThread = noOfThread;  }        /**        *  Initialize         */  private void init() throws Exception {       try {             // Initialize CSV file reader API objects             // Initialize OIM API objects             /* Initialize Fixed Thread Pool Executor class if no of threads                 configured is more than 1 */             if (noOfThreads > 1) {                   threadExecutor = Executors.newFixedThreadPool(noOfThreads);             } else {                   threadExecutor = Executors.newSingleThreadExecutor();             }             /* Initialize TaskProcess clas s which will be executing task                 from the Queue */                TaskProcessor.initializeConfig(params);       } catch (***Exception e) {                   // TO DO       }  }       /**        *  Method to reconcile data from CSV to OIM        */ public void reconcile() throws Exception {        try {             init();             while(<csv file has line>){                   processRow(line);             }             /* Initiate thread shutdown */             threadExecutor.shutdown();             while (!threadExecutor.isTerminated()) {                 // Wait for all task to complete.             }            } catch (Exception e) {                   // TO DO            } finally {                   try {                         //Close all the file handles                   } catch (IOException e) {                         //TO DO                   }             }       }       /**        * Method to process         */       private void processRow(String row) {             // Create task processor instance with the row data              // Following code push the task to work queue and wait for next                available thread to execute             threadExecutor.execute(new TaskProcessor(rowData));       } } TaskProcessor.java – Implementation of “Runnable” interface that executes the required business logic to update data in OIM. package com.oracle.oim.bo; import <required APIs> class TaskProcessor implements Runnable {       //Initialize required member variables       /**        * Constructor        */       public TaskProcessor(<row data>) {             // Initialize and parse csv row       }       /*       *  Method to initialize required object for task execution       */       public static void initializeConfig(<params>) {             // Process param and initialize the required configs and object       }           /*        * (non-Javadoc)        *         * @see java.lang.Runnable#run()        */            public void run() {             if (<is csv data valid>){                   processData();             }       }  /**   * Process the the received CSV input   */  private void processData() {     try{       //Find the user in OIM using the identity matching key value from CSV       // Find the account to be update from user’s account based on account identifying key on CSV       // Update the account with data from CSV       }catch(***Exception e){           //TO DO       }   } }

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• Difficult to replicate objects (object Customer) on the list? [migrated]

  - by gandolf

  I wrote a program that does work with files like delete and update, store, and search And all customers But I have a problem with the method is LoadAll Once the data are read from the file and then Deserialize the object becomes But when I want to save the list of objects in the list are repeated. How can I prevent the duplication in this code? var customerStr = File.ReadAllLines (address); The code is written in CustomerDataAccess class DataAccess Layer. Project File The main problem with the method LoadAll Code: public ICollection<Customer> LoadAll() { var alldata = File.ReadAllLines(address); List<Customer> lst = new List<Customer>(); foreach (var s in alldata) { var objCustomer = customerSerializer.Deserialize(s); lst.Add(objCustomer); } return lst; }

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• Nashorn ?? JDBC ? Oracle DB ?????·?? 3

  - by Homma

  ???? Nashorn ?? JavaScript ??????? JDBC ? Oracle DB ???????????????????? Oracle DB ????? SQL ??????????????? ???????????????????????????????? ????????? URL ? https://blogs.oracle.com/nashorn_ja/entry/nashorn_jdbc_3 ??? JDBC ??????????????? JDBC ????????????????? Nashorn ????? JavaScript ????????????? ???????? JDBC OCI ???????????????????????????????? ????? ?? Java ??????????????? Nashorn ? JavaScript ???????????????? // Invoke jjs with -scripting option. /* * This sample can be used to check the JDBC installation. * Just run it and provide the connect information. It will select * "Hello World" from the database. */ var OracleDataSource = Java.type("oracle.jdbc.pool.OracleDataSource"); function main() { // Prompt the user for connect information print("Please enter information to test connection to the database"); var user, password, database; user = readLine("user: "); slash_index = user.indexOf('/'); if (slash_index != -1) { password = user.substring(slash_index + 1) user = user.substring(0, slash_index); } else password = readLine("password: "); database = readLine("database(a TNSNAME entry): "); java.lang.System.out.print("Connecting to the database..."); java.lang.System.out.flush(); print("Connecting..."); // Open an OracleDataSource and get a connection var ods = new OracleDataSource(); ods.setURL("jdbc:oracle:oci:@" + database); ods.setUser(user); ods.setPassword(password); var conn = ods.getConnection(); print("connected."); // Create a statement var stmt = conn.createStatement(); // Do the SQL "Hello World" thing var rset = stmt.executeQuery("select 'Hello World' from dual"); while (rset.next()) print(rset.getString(1)); // close the result set, the statement and the connection rset.close(); stmt.close(); conn.close(); print("Your JDBC installation is correct."); } main(); oracle.jdbc.pool.OracleDataSource ? Java.type() ?????Nashorn ??????????????????????????? Java ? System.out.println() ? System.out.flush() ? java.lang. ???????????????? Java ?????????? readEntry() ????? Nashorn ? readLine() ???????????? Java ????????????????????????JavaScript ?????????????????? ?? Java ??????????????????????????? Java ???????????????? JavaScript ?????????????????? ???????? JDBC OCI ???????????????? LD_LIBRARY_PATH ????????????????? ???Nashorn ? readLine() ??????????jjs ????? -scripting ????????????????? $ export LD_LIBRARY_PATH=${ORACLE_HOME}/lib $ jjs -scripting -cp ${ORACLE_HOME}/jdbc/lib/ojdbc6.jar JdbcCheckup.js Please enter information to test connection to the database user: test password: test database(a TNSNAME entry): orcl Connecting to the database...Connecting... connected. Hello World Your JDBC installation is correct. JDBC OCI ????????????????? "select 'Hello World' from dual" ??? SQL ?????????????? ?????????????????database ???? :: ??????????? ??? ??? Oracle DB ????? SQL ???????????????? Java ? JDBC ??????????????????????????? Nashorn ??????????????????????????????????

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• how to add shopping cart url under top links in magento through customer.xml

  - by Ela

  I tried a lot to add shopping cart url in magento please show me how to add shopping cart url under top links in magento through customer.xml i did in this way. <default> <!-- Mage_Customer --> <reference name="top.links"> <action method="addLink" translate="label title" module="checkout"><label>Shopping Cart</label><url helper="checkout/getShoppingCartUrl"/><title>Shopping Cart</title><prepare/><urlParams/><position>10</position></action> </reference> </default>

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• Which tool to receive customer requirements

  - by Yoann. B

  Hi, In my company we want to use Scrum lifecycle, we are using Team System 2010. Team System is great to manage projects developpment and Scrum lifecycle. However we are looking for a solution in order to take care of customers requirements. A tool which give the ability to customer to send us their requests so we can plan it for next sprint. Should i use TFS Web Access ? but which type of Work Item ? I think TFS in general (not only Web Access) is for developpment team, not for customers ... Any idea ? Thanks in advance.

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• Magento: Customer Comment on order page required field

  - by Shamim Ahmed

  I am using whiteOrderComment module for customer comment on order review page. but in this section text-area field required option not working. I did little bit change on /checkout-onepage-review-button.phtml like this <script type="text/javascript"> function validate(){ if(document.getElementById("whiteOrderComment").value == ""){ alert('Required'); }else{ review.save(); } </script> <button type="submit" title="<?php echo $this->__('Place Order') ?>" class="button btn-checkout" onclick="validate();"><span><span><?php echo $this->__('Place Order') ?></span></span></button> but in this page javascript not working. can you please give any better idea, how can i make this text-area field required. thanks

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• Redirect Log output to sdcard on customer's phone

  - by Tom

  My customers are having a problem with my app, and I have been unable to reproduce the problem on my development phone. How to debug this problem? The android Log class is great, but my customers do not know how to use 'adb' or the USB debug cable. Is there some way to redirect Log output to a file on the phone's SD card? Then the customer could easily email the log file to me. Even if this redirection requires programming on my part, I could at least distribute a 'debug' version of the app. Thanks, Tom

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• Drupal: Two-way communication between unregistered customer and admin

  - by Bryan Folds

  I need to setup a system where customers can choose to Request a Quote for a specific holiday package, where they will enter their personal details as well as their holiday requirements (number of rooms, etc.) and will then allow them to view a page which will have a threaded conversation between them and the admin (so the admin can reply to their quote request on the website). The problem is that most customers won't be registered when they want to request a quote, so I was thinking that the Request a Quote page could silently register the customer as a user (using their personal details) on the same page where it asks for their holiday requirements. The other option I can think of would be to not register them and just email them a unique URL where they can view their quote request and reply to the admin. Could you point me in the right direction on how to do either of those?

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• C: switch case with logical operator

  - by Er Avinash Singh

  While I am new to c and want help in this program my code is : #include<stdio.h> #include<conio.h> void main(){ int suite=2; switch(suite) { case 1||2: printf("hi"); case 3: printf("byee"); default: printf("hello"); } printf("I thought somebody"); getche(); } I am working in turbo c and it shows no error and the output is helloI thought somebody Please, let me know how is this working ??? note :- here break is not the case as I intentionally left them.

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• Scala case class generated field value

  - by Petteri Hietavirta

  I have an existing Scala application and it uses case classes which are then persisted in MongoDB. I need to introduce a new field to a case class but the value of it is derived from existing field. For example, there is phone number and I want to add normalised phone number while keeping the original phone number. I'll update the existing records in MongoDB but I would need to add this normalisation feature to existing save and update code. So, is there any nice shortcut in Scala to add a "hook" to a certain field of a case class? For example, in Java one could modify setter of the phone number.

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• Unreachable code detected in case statement

  - by alex

  I have a code: protected override bool ProcessCmdKey(ref Message msg, Keys keyData) { switch (keyData) { case Keys.Alt|Keys.D1: if (this._condition1) { return true; } else { return base.ProcessCmdKey(ref msg, keyData); } break; case Keys.Control |Keys.U: if (this._condition2) { return true; } else { return base.ProcessCmdKey(ref msg, keyData); } break; default: return base.ProcessCmdKey(ref msg, keyData); } return true; It gives me "unreachable code detected" warning on breaks. Is it good practice not to use break operator here ? I don't want to turn off "unreachable code detected" warning. PS: There are many case in my ProcessCmdKey method.

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• Enums,use in switch case

  - by WPS

  Hi, I have an Enum defined which contains method return type like "String",Float,List,Double etc. I will be using it in switch case statements. For example my enum is public enum MethodType { DOUBLE,LIST,STRING,ARRAYLIST,FLOAT,LONG; } In a property file, I've key value pairs as follows. Test1=String Test2=Double In my code I'm getting the value for the key. I need to use the VALUE in Switch Case to Determine the Type and based on that I've to implement some logic. For example something like this switch(MethodType.DOUBLE){ case DOUBLE: //Dobule logic } Can someone please help me to implement this?

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• ASP, My SQL & case sensitity suddenly broken

  - by user131812

  Hi There, We have an old ASPsite that has been working fine for years with a MY SQL database. All of a sudden last week lots fo SQL queries stopped working. The database has a table called 'members' but the code calls 'Members'. It appears the queries used to work regardless of case sensitivity on the table names, but something has changed recently somewhere to enforce case. This has me stumped as the site has not been touched in years, the server config hasn't changed & the database provide has not changed anything. Is there any simple way to ignore case for an ASP site (without editing lots fo files :) Thanks Ben

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• Psycopg2 doesn't like table names that start with a lower case letter

  - by Count Boxer

  I am running ActiveState's ActivePython 2.6.5.12 and PostgreSQL 9.0 Beta 1 under Windows XP. If I create a table with an upper case first letter (i.e. Books), psycopg2 returns the "Programming Error: relation "books" does not exist" error message when I run the select statement: execute("SELECT * FROM Books"). The same error is returned if I run: execute("SELECT * FROM books"). However, if I change the table to a lower case first name (i.e. books), then either of the above statements works. Are tables name supposed to have a lower case first name? Is this a setting or a feature or a bug? Am I missing something obvious?

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• Programmatically get valid switch/case values

  - by craigim

  When MATLAB scans through cases in a switch/case block, does it remember the values that it skips, and is it possible to access that list? I have a few functions with long switch\case block and I would like to have them return a list of valid case values if they make it down to otherwise. For instance, I have a function that returns a set of optical constants for a material. It currently has about 20 different materials and it is growing as I consider new ones. I realize I can brute-force it and just re-type all of the valid cases into a cell array under otherwise and have the function throw an error and return the list of valid responses, but maintaining both lists without errors or laziness creeping in over time is challenging.

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• Simplifying CASE WHEN SQL statement

  - by kateroh

  Im trying to improve the following CASE statement to calculate the difference only once. I do it to avoid negative numbers: SELECT (CASE WHEN ((SELECT 100 - (SELECT COUNT(CustomerId) FROM Customers)) > 0) THEN (SELECT 100 - (SELECT COUNT(CustomerId) FROM Customers)) ELSE (0) END) This not only looks stupid, but also is not thread-safe. I tried the following, but I get an error message "Invalid column name 'diff'." SELECT (CASE WHEN ((SELECT 100 - (SELECT COUNT(CustomerId) FROM Customers) as diff) > 0) THEN (diff) ELSE (0) END) How can this be simplified? Is there an in-built SQL function that already does this job? EDIT: Sorry, forgot to mention that the select statement is inside of a view declaration, so I cant declare variables.

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• Cron won't use msmtp to send emails in case of failed cronjob

  - by Glister

  I'm trying to configure a machine so that it will send me an email if one of the cronjobs output something in case of an error. I'm using Debian Wheezy. Cron is working normally (without the email functionality). msmtp is installed and configured. Have already symlinked /usr/{bin|sbin}/sendmail to /usr/bin/msmtp. I can send email by using: echo "test" | mail -s "subject" [email protected] or by executing: echo "test" | /usr/sbin/sendmail Without the symlink (/usr/sbin/sendmail) cron will tell me that: (CRON) info (No MTA installed, discarding output) With the symlinks I get: (root) MAIL (mailed 1 byte of output; but got status 0x004e, #012) Can you suggest how to config the cron/msmtp pair? Thanks! EDIT: Note: I've written "msmtpd" by mistake. Its not a daemon but rather an SMTP client named just "msmtp" (without the "d" ending). It is executed on demand and it is not running in the background all the time. When I try to send an email by using msmtp like that it works: echo "test" | msmtp [email protected] On the far side, in the logs of the SMTP server I read: Nov 2 09:26:10 S01 postfix/smtpd[12728]: connect from unknown[CLIENT_IP] Nov 2 09:26:12 S01 postfix/smtpd[12728]: 532301C318: client=unknown[CLIENT_IP], sasl_method=CRAM-MD5, [email protected] Nov 2 09:26:12 S01 postfix/cleanup[12733]: 532301C318: message-id=<> Nov 2 09:26:12 S01 postfix/qmgr[2404]: 532301C318: from=<[email protected]>, size=191, nrcpt=1 (queue active) Nov 2 09:26:12 S01 postfix/local[12734]: 532301C318: to=<[email protected]>, orig_to=<[email protected]>, relay=local, delay=0.62, delays=0.59/0.01/0/0.03, dsn=2.0.0, status=sent (delivered to command: IFS=' ' && exec /usr/bin/procmail -f- || exit 75 #1001) Nov 2 09:26:12 S01 postfix/qmgr[2404]: 532301C318: removed Nov 2 09:26:13 S01 postfix/smtpd[12728]: disconnect from unknown[CLIENT_IP] And the Email is delivered to the target user. So it looks like that the msmtp client is working properly. It has to be something in the cron/msmtp integration, but I have no clue what that thing might be. Can you help me?

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• java.sql.SQLException: ORA-06502: PL/SQL: numeric or value error: character string buffer too small

  - by jack

  Hi I got an email from a user when he sees the following error output when he's using our web site. java.sql.SQLException: ORA-06502: PL/SQL: numeric or value error: character string buffer too small ORA-06512: at "WEB_OWNER.SSFP_GET_WE_OBJ", line 300 ORA-06512: at line 1 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:137) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:315) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:281) This is error from oracle webconnect, Oracle Application Server Containers for J2EE 10g (10.1.2.3.0). Any idea?

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• What is the quickest way to kill all sessions from a specified user in Oracle?

  - by Thomas Bratt

  What is the quickest way to kill all sessions from a specified user in Oracle?

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• Truecrypt files corrupted after moving PC into another case

  - by Dygerati

  I recently bought a new PC case and transferred all of my PC hardware into it. The only hardware modification was the addition of two identical ram modules. The entire process went smoothly, and everything worked and booted as before. The only side-effect I found when accessing one my of file-based hidden truecrypt volumes shortly there after. Some of the files in the volume - NOT all - seemed to be entirely corrupted. The directory and file names are garbled characters, but a few of the directories in the same volume appear and function normally. Also, all files in the non-hidden tc volume were still intact. Is this not weird? The only other real change I could think of would be that the hard drives were connected to different SATA ports on the mobo. I really don't know how the truecrypt encryption works well enough to know what could cause this...and the fact that not all the files were corrupted makes it more bizarre still. So, first off (and I'm not too hopeful on this point), would it be possible to restore these files? I had a backup of most, but not all of the files involved. Other than that I'm just curious how this happened and how I can prevent it next time. Thanks!

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• How to wipe the slate clean on an Oracle installation?

  - by nw

  After a basic, successful installation of Oracle 11g, I ran dbca again to enable Enterprise Manager on my database. The operation hung at around 67% for half an hour or more, so I clicked Stop to abort the operation. Things seemed to wrap up cleanly, EM was working, all was well with the world. Then I started getting this dreaded error upon any attempt to connect in SQL*Plus: ORA-12154: TNS:could not resolve the connect identifier specified I thought perhaps the database had been corrupted due to the earlier aborted operation, so I ran dbca again and deleted the database. Then I attempted to create a new database in its stead, using a clone of the template created the first time around. Unfortunately, the clone database operation fails at 50% with the exact same error: ORA-12154: TNS:could not resolve the connect identifier specified How can I clean up the mess I have created, short of reinstalling Oracle entirely from scratch?

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• I just installed oracle 11g and I can't figure out how to log into the enterprise manager.

  - by nixomose

  Any idea what the default login is? none of my oracle accounts are working.

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