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adding a custom service to jbpm.cfg.xml
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reply from <a href="http://community.jboss.org/people/kelum">kelum_sv N</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/559052#559052">View the full discussion</a>
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<div class="jive-rendered-content"><p>HI</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong>Using jbpm 4.4. WITH jboss-5.1.0.GA</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>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.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public class MyIdentitySession extends IdentitySessionImpl<br/>{<br/>    /*<br/>   * This method will create or update a user<br/>   *<br/>   * */</p><p>    public String createUser(String userName, String givenName, String familyName, String businessEmail)<br/>    {</p><p>        User user = null;<br/>        try<br/>        {<br/>            user = findUserById(userName);<br/>        }<br/>        catch (Exception ex)<br/>        {</p><p>        }</p><p>        if (user == null)<br/>        {<br/>            user = new UserImpl(userName, givenName, familyName);<br/>            long dbid = EnvironmentImpl.getFromCurrent(DbidGenerator.class).getNextId();<br/>            ((UserImpl) user).setDbid(dbid);<br/>        }</p><p>        UserImpl userimpl = (UserImpl) user;<br/>        userimpl.setBusinessEmail(businessEmail);<br/>        userimpl.setFamilyName(familyName);<br/>        userimpl.setGivenName(givenName);<br/>        userimpl.setId(userName);<br/>        session.save(user);</p><p>        return user.getId();<br/>    }</p><p>    /*<br/>   *  This method will create or modify Group<br/>   *<br/>   * */</p><p>    public String createGroup(String groupName, String groupType, String parentGroupId)<br/>    {<br/>              </p><p>        GroupImpl group = null;</p><p>        try<br/>        {<br/>            group = findGroupById(groupName);<br/>        }<br/>        catch (Exception ex)<br/>        {</p><p>        }</p><p>        if (group == null)<br/>        {<br/>            group = new GroupImpl();<br/>            String groupId = groupType != null ? groupType + "." + groupName : groupName;<br/>            group.setId(groupId);</p><p>            long dbid = EnvironmentImpl.getFromCurrent(DbidGenerator.class).getNextId();<br/>            group.setDbid(dbid);<br/>        }</p><p>        group.setName(groupName);<br/>        group.setType(groupType);</p><p>        if (parentGroupId != null)<br/>        {<br/>            GroupImpl parentGroup = findGroupById(parentGroupId);<br/>            group.setParent(parentGroup);<br/>        }</p><p>        session.save(group);</p><p>        return group.getId();<br/>    }</p><p>    public void setSession(Session session)<br/>    {<br/>        super.setSession(session);<br/>        Configuration.getProcessEngine().get()<br/>    }</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>2: Then i created new MyIdentitySessionBinding by extending WireDescriptorBinding</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public class MyIdentitySessionBinding extends WireDescriptorBinding<br/>{<br/>    public MyIdentitySessionBinding()<br/>    {<br/>        super("identity-session");<br/>    }</p><p>    public Object parse(Element element, Parse parse, Parser parser)<br/>    {<br/>        ObjectDescriptor objectDescriptor = new ObjectDescriptor(MyIdentitySession.class);<br/>        objectDescriptor.addTypedInjection("session", Session.class);<br/>        return objectDescriptor;<br/>    }<br/>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>3: Then this MyIdentitySessionBinding was registered using jbpm.user.wire.bindings.xml</p><p><wire-bindings><br/>  <!-- sessions --> <br/><binding class ="dd.ss.ss.MyIdentitySessionBinding" /></p><p></wire-bindings></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>4: Added this file inside that jbpm-service.sar which inside JBoss deploy directory .</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>5 : Customised jbpm.cfg.xml as bellow</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><jbpm-configuration jndi-name="java:/ProcessEngine"></p><p>  <import resource="jbpm.default.cfg.xml" /><br/>  <import resource="jbpm.businesscalendar.cfg.xml" /><br/>  <import resource="jbpm.tx.jta.cfg.xml" /><br/>  <import resource="jbpm.jpdl.cfg.xml" /><br/>  <import resource="jbpm.bpmn.cfg.xml" />  <br/>  <import resource="jbpm.jobexecutor.cfg.xml" /><br/>  <import resource="jbpm.console.cfg.xml" /><br/>  <transaction-context><br/>    <object class ="aa.bb.cc.MyIdentitySession" /> <br/>  </transaction-context></p><p></jbpm-configuration></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Whwn i try to use createUser,createGroup methods inside MyIdentitySession, it gives me NullPointer exception when accessing session[Hybranate ].</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Hope there should be a configuration issue. Please assist me on this regards</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thank you</p><div> </div><div> </div></div>
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