Failed to connect to MDM via Java API

Question

Hi,
I wrote a very simple application in which there is a view which
calls the component contoller. The Component Controller
connects to MDM Repository.
I think I am wrong with the calling of Component from Web Dynpro view.
As, the code resulting in no error or success.
Please suggets something.
public void getRepositoryConnection( java.lang.String hostName, java.lang.String repositoryName, java.lang.String userId, java.lang.String passWord )
    //@@begin getRepositoryConnection()
//          create connection pool to a MDM server
         String serverName = "kolapon.HCLT.CORP.HCL.IN";
         ConnectionPool connections = null;
         try{
              connections=ConnectionPoolFactory.getInstance(serverName);
         catch(ConnectionException e)
         { e.printStackTrace();
              return;
//          specify the repository to use
                           // alternatively, a repository identifier can be obtain from the GetMountedRepositoryListCommand
                       repositoryName = "KaushikRepo";
         String dbmsName ="MDM";
          RepositoryIdentifier reposId = new RepositoryIdentifier(repositoryName, dbmsName, DBMSType.ORACLE);
//          get list of available regions for the repository
          GetRepositoryRegionListCommand regionListCommand = new GetRepositoryRegionListCommand(connections);
          regionListCommand.setRepositoryIdentifier(reposId);
          try{
               regionListCommand.execute();
          catch(CommandException e)
               e.printStackTrace();
               return;
     RegionProperties[] regions = regionListCommand.getRegions();
//      create a user session
      CreateUserSessionCommand sessionCommand = new CreateUserSessionCommand(connections);
      sessionCommand.setRepositoryIdentifier(reposId);
      sessionCommand.setDataRegion(regions[0]); // use the first region
     try {
                               sessionCommand.execute();
                          } catch (CommandException e) {
                               e.printStackTrace();
                               return;
     String sessionId = sessionCommand.getUserSession();
//      authenticate the user session
      String userName ="kaushikb";
      String userPassword ="taton";
      AuthenticateUserSessionCommand authCommand =
                                new AuthenticateUserSessionCommand(connections);
      if(authCommand!=null)
           wdComponentAPI.getMessageManager().reportSuccess("Success");                          
      else{
           wdComponentAPI.getMessageManager().reportWarning("Failure");
      authCommand.setSession(sessionId);
      authCommand.setUserName(userName);
      authCommand.setUserPassword(userPassword);
      try {
                                authCommand.execute();
                           } catch (CommandException e) {
                                e.printStackTrace();
                                return;
                           // the main table, hard-coded
       try{
          GetRepositorySchemaCommand getRepositorySchemaCommand = new GetRepositorySchemaCommand(connections);
          getRepositorySchemaCommand.setSession(sessionId);
          getRepositorySchemaCommand.execute();
          RepositorySchema repositorySchema;
          repositorySchema = getRepositorySchemaCommand.getRepositorySchema();
          TableId tableId= repositorySchema.getTable("MDM_BUSINESS_PARTNERS").getId();
     RecordFactory.createEmptyRecord(tableId);
     //RecordFactory.createEmptyRecord(mainTableId);
     if(tableId!=null)
          wdComponentAPI.getMessageManager().reportSuccess("It is success");
     else{
     wdComponentAPI.getMessageManager().reportWarning("Failure");     
catch(Exception ce)
ce.printStackTrace();     
//  catch(SessionException se)
//se.printStackTrace();
    //@@end
Regards
Kaushik Banerjee

Answer 1

Hi Jitesh,
getRepositoryConnection() is my method which does the connection.
Now, there are methods as :
getFields
public FieldId[] getFields()Get array of field IDs for all populated records.
Returns:
array of field IDs. Empty array is returned if any field was populated
getFieldValue
public MdmValue getFieldValue(FieldId fieldId)
                       throws java.lang.IllegalArgumentExceptionGet value of the specified field.
Parameters:
fieldId - field ID
Returns:
field value
Throws:
java.lang.IllegalArgumentException - if field with specified ID does not exist or was not populated
I want to use all these methods.
So, I need to declare these methods in the Controller Class and these methods will call themselves so, that I can achieve the real purpose of creating records, getting values from the field and getting field Ids etc.
Regards
Kaushik Banerjee
Edited by: Kaushik Banerjee on Apr 28, 2009 7:09 AM