[SOLVED] Possible to set the document type from a workflow?

[mcook]

Basically, I want to be able to start a custom workflow and as the first step the user will need to specify the document type from the list of available types.

Is there a way to do this / re-use the specialize type action or will I have to customize every aspect of this?

[singleton]

Your workflow will probably be bound to a document, this document is retrievable by:
bpm_package.children[0];

to have its doctype set, just made it some task:
<task name="custom_wf:intake" swimlane="specializedUserPool">
         <event type="task-create">
           <action class="org.alfresco.repo.workflow.jbpm.AlfrescoJavaScript">
            <script>   
var doc = bpm_package.children[0];
doc.specializeType("your_model:specialized_document_type");
                                </script>
           </action>        
               </event>
</task>

[mcook]

Thank you for you reply… However, I have actually figured out a similar method using java.  The specialize type method used in javascript is not ideal for us because It can only descend down the type hierarchy.  I needed a method to set the type of the document, no matter what the original type was.  Here is what I did:

…
   <super-state name="specify-document-data">
      <task-node name="set-document-type">
         <task name="blfinwf:setDocumentTypeTask" swimlane="initiator">
            <description>Set Document Type</description>
            
            <event type="task-end">
               <action class="com.burris.common.bpm.actions.ForceChangeTypeAction" />
            </event>
            
            <controller>
               <variable name="blfinwf_documentType" />
            </controller>
         </task>
         
         <transition name="Submit" to="set-meta-data"></transition>
      </task-node>
…‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

…
      <type name="blfinwf:setDocumentTypeTask">
         <parent>bpm:workflowTask</parent>
         
         <properties>
            <property name="blfinwf:documentType">
               <type>d:text</type>
               <mandatory>true</mandatory>
               <multiple>false</multiple>
               
               <constraints>
                  <constraint type="LIST">
                     <parameter name="allowedValues">
                        <list>
                           <value>blfin:certificateOfLiabilityInsurance</value>
                           <value>blfin:1099</value>
                           <value>blfin:w9</value>
                        </list>
                     </parameter>
                  </constraint>
               </constraints>
            </property>
         </properties>
      </type>
…‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

…
package com.burris.common.bpm.actions;

import java.util.List;

import org.alfresco.repo.workflow.jbpm.JBPMNode;
import org.alfresco.repo.workflow.jbpm.JBPMSpringActionHandler;
import org.alfresco.service.cmr.repository.ChildAssociationRef;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.NodeService;
import org.alfresco.service.namespace.NamespaceService;
import org.alfresco.service.namespace.QName;
import org.apache.log4j.Logger;
import org.jbpm.context.exe.ContextInstance;
import org.jbpm.graph.exe.ExecutionContext;
import org.jbpm.taskmgmt.exe.TaskInstance;
import org.springframework.beans.factory.BeanFactory;

@SuppressWarnings("serial")
public class ForceChangeTypeAction extends JBPMSpringActionHandler {

   private static final Logger log = Logger.getLogger( ForceChangeTypeAction.class );
   
   private NodeService nodeService;
   private NamespaceService namespaceService;
   
   @Override
   protected void initialiseHandler( BeanFactory factory ) {
      
      this.nodeService = (NodeService) factory.getBean( "nodeService" );
      this.namespaceService = (NamespaceService) factory.getBean( "namespaceService" );
   }
   
   @Override
   public void execute( ExecutionContext context ) throws Exception {
      
      ContextInstance contextInstance = context.getContextInstance();
      
      Object object = contextInstance.getVariable( "bpm_package" );
      if ( object == null ) {
         
         log.fatal( "bpm_package variable is null." );
         return;
      }
      
      NodeRef nodeRef = ((JBPMNode) object).getNodeRef();
      if ( nodeRef == null ) {
         
         log.fatal( "nodeRef is null." );
         return;
      }
      
      TaskInstance task = context.getTaskInstance();
      String documentType = (String) task.getVariable( "blfinwf_documentType" );
      
      QName qname = QName.createQName( documentType, namespaceService );
      
      // Set document to finance doc type to ensure child type compatibility
      // (ie someone dropped a document with a type already specified)
      List<ChildAssociationRef> children = nodeService.getChildAssocs( nodeRef );
      for ( ChildAssociationRef child : children ) {
         
         NodeRef childNodeRef = child.getChildRef();
         nodeService.setType( childNodeRef, qname );
      }
   }
}
…‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Hope this helps out any other that come across something similar.