JBoss Community

HI

Using jbpm 4.4. WITH jboss-5.1.0.GA

1 :I am also having this kind of issue at the moment . What i have done was extended  IdentitySessionImpl and created my own MyIdentitySession .and i have over right few methods createUser,createGroup what was already there in IdentitySessionImpl.

public class MyIdentitySession extends IdentitySessionImpl
{
    /*
   * This method will create or update a user
   *
   * */

    public String createUser(String userName, String givenName, String familyName, String businessEmail)
    {

        User user = null;
        try
        {
            user = findUserById(userName);
        }
        catch (Exception ex)
        {

        }

        if (user == null)
        {
            user = new UserImpl(userName, givenName, familyName);
            long dbid = EnvironmentImpl.getFromCurrent(DbidGenerator.class).getNextId();
            ((UserImpl) user).setDbid(dbid);
        }

        UserImpl userimpl = (UserImpl) user;
        userimpl.setBusinessEmail(businessEmail);
        userimpl.setFamilyName(familyName);
        userimpl.setGivenName(givenName);
        userimpl.setId(userName);
        session.save(user);

        return user.getId();
    }

    /*
   *  This method will create or modify Group
   *
   * */

    public String createGroup(String groupName, String groupType, String parentGroupId)
    {
             

        GroupImpl group = null;

        try
        {
            group = findGroupById(groupName);
        }
        catch (Exception ex)
        {

        }

        if (group == null)
        {
            group = new GroupImpl();
            String groupId = groupType != null ? groupType + "." + groupName : groupName;
            group.setId(groupId);

            long dbid = EnvironmentImpl.getFromCurrent(DbidGenerator.class).getNextId();
            group.setDbid(dbid);
        }

        group.setName(groupName);
        group.setType(groupType);

        if (parentGroupId != null)
        {
            GroupImpl parentGroup = findGroupById(parentGroupId);
            group.setParent(parentGroup);
        }

        session.save(group);

        return group.getId();
    }

    public void setSession(Session session)
    {
        super.setSession(session);
        Configuration.getProcessEngine().get()
    }

}

2: Then i created new MyIdentitySessionBinding by extending WireDescriptorBinding

public class MyIdentitySessionBinding extends WireDescriptorBinding
{
    public MyIdentitySessionBinding()
    {
        super("identity-session");
    }

    public Object parse(Element element, Parse parse, Parser parser)
    {
        ObjectDescriptor objectDescriptor = new ObjectDescriptor(MyIdentitySession.class);
        objectDescriptor.addTypedInjection("session", Session.class);
        return objectDescriptor;
    }
}

3: Then this MyIdentitySessionBinding was registered using jbpm.user.wire.bindings.xml

<wire-bindings>
  <!-- sessions -->
<binding class ="dd.ss.ss.MyIdentitySessionBinding" />

</wire-bindings>

4: Added this file inside that jbpm-service.sar which inside JBoss deploy directory .

5 : Customised jbpm.cfg.xml as bellow

<jbpm-configuration jndi-name="java:/ProcessEngine">

  <import resource="jbpm.default.cfg.xml" />
  <import resource="jbpm.businesscalendar.cfg.xml" />
  <import resource="jbpm.tx.jta.cfg.xml" />
  <import resource="jbpm.jpdl.cfg.xml" />
  <import resource="jbpm.bpmn.cfg.xml" /> 
  <import resource="jbpm.jobexecutor.cfg.xml" />
  <import resource="jbpm.console.cfg.xml" />
  <transaction-context>
    <object class ="aa.bb.cc.MyIdentitySession" />
  </transaction-context>

</jbpm-configuration>

Whwn i try to use createUser,createGroup methods inside MyIdentitySession, it gives me NullPointer exception when accessing session[Hybranate ].

Hope there should be a configuration issue. Please assist me on this regards

Thank you