6 Replies Latest reply on Dec 6, 2011 3:34 AM by jbpm2011

How to Save jBPM 5.1 Process Definition Created via API?

victor.lewis Aug 1, 2011 3:11 PM

Once I have created a Process Definition as described in the User Guide section 5.1.3 how do I then save that Process as BPML?

1. Re: How to Save jBPM 5.1 Process Definition Created via API?

victor.lewis Aug 1, 2011 3:50 PM (in response to victor.lewis)

Answering my own question. What I found is that I can do this as the last line in the mentioned example from the User Guide and I will get the XML for the Process.

System.out.println(XmlBPMNProcessDumper.INSTANCE.dump(process, XmlBPMNProcessDumper.NO_META_DATA));
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2. Re: How to Save jBPM 5.1 Process Definition Created via API?

jbpm2011 Dec 5, 2011 4:59 AM (in response to victor.lewis)

Hi,

I have a problem of casting processdefinition to workflowprocess
System.out.println(XmlBPMNProcessDumper.INSTANCE.dump((WorkflowProcess) processDefinition, XmlBPMNProcessDumper.NO_META_DATA));

this is the erreur
Exception in thread "main" java.lang.ClassCastException: org.jbpm.context.def.ContextDefinition cannot be cast to org.drools.process.core.Context
at com.test.ProcessMain.main

can you help me please?
thank you
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3. Re: How to Save jBPM 5.1 Process Definition Created via API?

victor.lewis Dec 5, 2011 10:50 AM (in response to jbpm2011)

Estelle,

The exception you show isn't complaining about your cast to a WorkflowProcess but looks to be deeper in the call to dump (although I cannot tell because you cut off the stack trace). It says you have an instance of org.jbpm.context.def.ContextDefinition that is trying to be cast to org.drools.process.core.Context. I don't know where the org.jbpm.context.def.ContextDefinition is being created but it probably a part of processDefinition. The stack trace with the exception should tell you where the cast is being done.

Here is the code I use to get thet XML:

{code:java}
protected String xmlForProcess(ProcessDefinitionDTO procDef, List<WorkflowNode> nodes, RPCResult result) {
     RuleFlowProcessFactory factory = processDefinitionService.createProcesFactory(procDef.getIdString());
     factory.version("1");
     factory.packageName("com.stuff.pbm");
     factory.name(procDef.getName());
  
     addNodesToProcess(nodes, factory);
  
     addLinksToProcess(procDef, factory);
  
     RuleFlowProcess process = factory.getProcess();
     ProcessValidationError[] errors = RuleFlowProcessValidator.getInstance().validateProcess(process);
        
     for (ProcessValidationError e : errors) {
          result.addMessage(new MessageDTO(MessageCategory.WARNING, e.getMessage()));
     }
        
     String asXml = XmlBPMNProcessDumper.INSTANCE.dump(process, XmlBPMNProcessDumper.NO_META_DATA);
     return asXml;
}
{code}
 
where {code:java}processDefinitionService.createProcessFactory{code} returns a {code:java}org.jbpm.ruleflow.core.RuleFlowProcessFactory{code}.
 
I hope this helps.
 
-Victor

4. Re: How to Save jBPM 5.1 Process Definition Created via API?

jbpm2011 Dec 6, 2011 3:27 AM (in response to victor.lewis)

Thank you for your answer

My principal object is to save in the file processdefinition.xml i didn't use the same method of you here is my code :

import org.jbpm.bpmn2.xml.XmlBPMNProcessDumper;
import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.workflow.core.impl.WorkflowProcessImpl;

public class ProcessTest
{
public static void main(String[] args)

   {
      System.out.println("Start ");

      ProcessDefinition processDefinition = ProcessDefinition.parseXmlResource("processdefinition.xml");
    System.out.println("before modification");
    System.out.println(processDefinition.getName());
    processDefinition.setName("My second name");
    System.out.println("before modification");
    System.out.println(processDefinition.getName());

   // now i try to persist this modification in my processdefinition.xml

    WorkflowProcessImpl process= new WorkflowProcessImpl();
    process.getMetaData();
    //process.getMetaData("processdefinition.xml");

    System.out.println(XmlBPMNProcessDumper.INSTANCE.dump(process, XmlBPMNProcessDumper.NO_META_DATA));

    System.out.println(processDefinition.getName());

   This is my class but i didnt knew why we are not using the same syntax, we have two different code but we are using the same API and i guess the same object.

   I will explain to you: I have the processdefinition.xml file i want to save any changes related to the process in this file so do you have any ideas or any suggestion

Thanks
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5. Re: How to Save jBPM 5.1 Process Definition Created via API?

jbpm2011 Dec 6, 2011 3:31 AM (in response to jbpm2011)

I want to know also if you are using import from org.drools or org.jbpm

Thank you
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6. Re: How to Save jBPM 5.1 Process Definition Created via API?

jbpm2011 Dec 6, 2011 3:34 AM (in response to jbpm2011)

Sorry if i bother you but if it is possible you give to me your project
Thank you
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