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WorkflowService getProcessDefinition

Samuel_Penn

Hi all,

I'm trying to start a workflow from Java WS, and to do that I need to pass a ProcessDefinition to the workflow services createProcess method. However, I'm having an issue with actually getting the ProcessDefinition, in that I get a SOAPFaultException whenever I try.

My code is something like:

WorkflowService wf = ws.getWorkflowService();ProcessDefinition  map = wf.getProcessDefinition(83216);

Where 83216 is the id of the workflow map (if I try another id, I get an error saying it doesn't exist or that it isn't a process map just as I'd expect, so I'm pretty certain I'm pointing at the right node). What I do get is the following exception:

javax.xml.ws.soap.SOAPFaultException: Error loading ProcessDefinition.Activities    at com.sun.xml.ws.fault.SOAP11Fault.getProtocolException(SOAP11Fault.java:187)    at com.sun.xml.ws.fault.SOAPFaultBuilder.createException(SOAPFaultBuilder.java:116)    at com.sun.xml.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:254)    at com.sun.xml.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:224)    at com.sun.xml.ws.client.sei.SEIStub.invoke(SEIStub.java:117)    at $Proxy37.getProcessDefinition(Unknown Source)    at com.aiimi.llws.Test.main(Test.java:30)

I can get instances of the same workflow, as per the following code which works:

ProcessInstance process = wf.getProcessStatus(90013, 90013);System.out.println(process.getTitle());

So I know my connection to the server is all okay etc. I can also list the activities of the instance okay - it is just getting the map itself which seems to fail.

Any suggestions as to what is going wrong, and how to fix it, greatly appreciated.

Thanks,

Sam.

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Comments

Samuel_Penn

Further investigate shows that the above code works fine for a newly created workflow. However, as soon as I add an 'XSL Transform' step anywhere into a workflow, then I get the above error when trying to fetch it via web services. Even if the 'XSL Transform' step is subsequently deleted, the workflow map can no longer be accessed from web services.

As to why, I have no idea.

Sam.

Kyle_Swidrovich

Hello Sam,

I’d recommend contacting Open TextCustomer Support through your regional support office to have this issueinvestigated thoroughly.

Regards,

Kyle

From: eLink Entry:Enterprise Web Services 9.7.1 Forum[mailto:otdnenterprisewebservices971forum@elinkkc.opentext.com]
Sent: Thursday, February 11, 20109:38 AM
To: eLink Recipient
Subject: WorkflowServicegetProcessDefinition

WorkflowService getProcessDefinition

Posted by spenn@aiimi.com (Penn, Samuel) On 2010/02/11 09:36

As to why, I have no idea.

Sam.

[To post a comment, use the normal reply function]
Topic:	WorkflowService getProcessDefinition
Forum:	Enterprise Web Services 9.7.1 Forum
Livelink Server:	knowledge-wlweb01

Pieter_Van_Lijsebetten

Is there already an update on this issue?

Thanks.

Pieter

Stadler_Michael

I would also want to know if there is a solution for this problem, because im running into the same exception...

Jason_Smith

I believe the problem is due to the workflow service not recognizing the 'XSL Transform' step (or any other workflow extension steps). Currently there is no support for the workflow extensions module for web services. There is a feature request logged to add this support under LESAPI-556. Unfortunately no solution currently exists, at least not that I know of.

Stadler_Michael

Yeah I get that, but the problem is I'm not even using XSL Transform in my workflow, and I get the same exception.

Kyle_Swidrovich

Quoted m.stadler@spp.at on 2012-05-22 08:51:

Yeah I get that, but the problem is I'm not even using XSL Transform in my workflow, and I get the same exception.

Do you have any XML Workflow Extensions steps in your map?
(XSL Transform is one, but you may also have XML Import / Export, Delay/Wait steps, modification, download, delete, HTTP, coding, binary replace)

Do you have any additional optional or third-party extensions?

Try exporting your map and importing it into a barebones Content Server and see if all the steps stay defined on import.

Stadler_Michael

No nothing...

Im trying to create a Process from a available Workflow Map and all I get is this exception:

ProcessInstance newInstance= workflowService.createProcess(workflowService.getProcessDefinition(70946), "NewAwesomeWorkflow", new ArrayList<Integer>(0), new ArrayList<Integer>(0));

And I'm getting this :

Exception in thread "main" javax.xml.ws.soap.SOAPFaultException: Error loading ProcessDefinition.Activities at com.sun.xml.ws.fault.SOAP11Fault.getProtocolException(SOAP11Fault.java:189) at com.sun.xml.ws.fault.SOAPFaultBuilder.createException(SOAPFaultBuilder.java:130) at com.sun.xml.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:119) at com.sun.xml.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:89) at com.sun.xml.ws.client.sei.SEIStub.invoke(SEIStub.java:118) at $Proxy36.getProcessDefinition(Unknown Source)

Kyle_Swidrovich

Hi Michael,

Can you possibly attach your example workflow map?

Thanks,

Kyle

Stadler_Michael

There you go ;-)

Thanks for your help !

eProcAction_Workflow.map

Jason_Smith

It looks like your map has some workflow components that are not part of the core workflow module so it is not recogznized by CWS. I loaded it up in a basic Content Server instance (no additional modules or anything) and ran the "Verify Map Definition" tool and got the following two errors:

1) A custom task type needed for step "execute Action" is not installed

2) A custom task type needed for step "send to SAP" is not installed

Not sure what these are...

Stadler_Michael

Oh okay, my mistake.

We have XML Workflow Extension Module installed, but I don't think that in this workflow its actually used.

Is there a known problem when you are using webservices to initiate workflows which use xml workflow extension ?

Maybe could someone post a simple demo of starting a workflow via webservices, maybe I'm getting something wrong there :-(

Kyle_Swidrovich

Please refer to Jason's post that you replied to earlier.

Stadler_Michael

Do Webservices not support custom task types in Workflows in 9.7.1 ?

Kyle_Swidrovich

The WorkflowService was written to work with core Content Server.
The moment you introduce optional modules into the mix, you need special handling for task types that don't normally exist in core.
Unless an extension has been written for the service, support will not be there for custom task types.
To our knowledge, no such extension exists for XML Workflow Extensions.

Stadler_Michael

Thanks to everybody for helping me with the problem !

Consider it as resolved !

Francisco_José_Martínez_García

In OpenText Content Server 10 Service Pack 2 with Web Service WorkflowService exist two operations GetProcessDefinition and GetProcessDefinitionEx

With this two operations when pass a valid ID of workflow map and contains only User Step, Evaluates and Modify Step return this exceptions:

<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
   <S:Header>
      <OTAuthentication xmlns="urn:api.ecm.opentext.com">
         <AuthenticationToken>qdNtfB8qD9LQdvgG1MVx5oyYD5YJsSC0ggONeomZgi4%3D</AuthenticationToken>
      </OTAuthentication>
   </S:Header>
   <S:Body>
      <S:Fault xmlns:ns4="http://www.w3.org/2003/05/soap-envelope">
         <faultcode>Core.ServiceException</faultcode>
         <faultstring>Error loading ProcessDefinition.Activities</faultstring>
         <detail>
            <ns2:exception class="javax.xml.ws.soap.SOAPFaultException" note="To disable this feature, set com.sun.xml.ws.fault.SOAPFaultBuilder.disableCaptureStackTrace system property to false" xmlns:ns2="http://jax-ws.dev.java.net/">
               <message>Error loading ProcessDefinition.Activities</message>
               <ns2:stackTrace>
                  <ns2:frame class="com.opentext.livelink.service.core.ExceptionUtil" file="ExceptionUtil.java" line="162" method="throwSOAPFaultException"/>
                  <ns2:frame class="com.opentext.livelink.service.workflowservice.WorkflowService_JAXWS" file="WorkflowService_JAXWS.java" line="144" method="getProcessDefinitionEx"/>
                  <ns2:frame class="sun.reflect.NativeMethodAccessorImpl" line="native" method="invoke0"/>
                  <ns2:frame class="sun.reflect.NativeMethodAccessorImpl" line="unknown" method="invoke"/>
                  <ns2:frame class="sun.reflect.DelegatingMethodAccessorImpl" line="unknown" method="invoke"/>
                  <ns2:frame class="java.lang.reflect.Method" line="unknown" method="invoke"/>
                  <ns2:frame class="com.sun.xml.ws.api.server.InstanceResolver$1" file="InstanceResolver.java" line="246" method="invoke"/>
                  <ns2:frame class="com.sun.xml.ws.server.InvokerTube$2" file="InvokerTube.java" line="146" method="invoke"/>
                  <ns2:frame class="com.sun.xml.ws.server.sei.EndpointMethodHandler" file="EndpointMethodHandler.java" line="257" method="invoke"/>
                  <ns2:frame class="com.sun.xml.ws.server.sei.SEIInvokerTube" file="SEIInvokerTube.java" line="93" method="processRequest"/>
                  <ns2:frame class="com.sun.xml.ws.api.pipe.Fiber" file="Fiber.java" line="598" method="__doRun"/>
                  <ns2:frame class="com.sun.xml.ws.api.pipe.Fiber" file="Fiber.java" line="557" method="_doRun"/>
                  <ns2:frame class="com.sun.xml.ws.api.pipe.Fiber" file="Fiber.java" line="542" method="doRun"/>
                  <ns2:frame class="com.sun.xml.ws.api.pipe.Fiber" file="Fiber.java" line="439" method="runSync"/>
                  <ns2:frame class="com.sun.xml.ws.server.WSEndpointImpl$2" file="WSEndpointImpl.java" line="243" method="process"/>
                  <ns2:frame class="com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit" file="HttpAdapter.java" line="471" method="handle"/>
                  <ns2:frame class="com.sun.xml.ws.transport.http.HttpAdapter" file="HttpAdapter.java" line="244" method="handle"/>
                  <ns2:frame class="com.sun.xml.ws.transport.http.servlet.ServletAdapter" file="ServletAdapter.java" line="135" method="handle"/>
                  <ns2:frame class="com.sun.xml.ws.transport.http.servlet.WSServletDelegate" file="WSServletDelegate.java" line="129" method="doGet"/>
                  <ns2:frame class="com.sun.xml.ws.transport.http.servlet.WSServletDelegate" file="WSServletDelegate.java" line="160" method="doPost"/>
                  <ns2:frame class="com.sun.xml.ws.transport.http.servlet.WSServlet" file="WSServlet.java" line="75" method="doPost"/>
                  <ns2:frame class="javax.servlet.http.HttpServlet" file="HttpServlet.java" line="637" method="service"/>
                  <ns2:frame class="javax.servlet.http.HttpServlet" file="HttpServlet.java" line="717" method="service"/>
                  <ns2:frame class="org.apache.catalina.core.ApplicationFilterChain" file="ApplicationFilterChain.java" line="290" method="internalDoFilter"/>
                  <ns2:frame class="org.apache.catalina.core.ApplicationFilterChain" file="ApplicationFilterChain.java" line="206" method="doFilter"/>
                  <ns2:frame class="org.apache.catalina.core.StandardWrapperValve" file="StandardWrapperValve.java" line="233" method="invoke"/>
                  <ns2:frame class="org.apache.catalina.core.StandardContextValve" file="StandardContextValve.java" line="191" method="invoke"/>
                  <ns2:frame class="org.apache.catalina.core.StandardHostValve" file="StandardHostValve.java" line="127" method="invoke"/>
                  <ns2:frame class="org.apache.catalina.valves.ErrorReportValve" file="ErrorReportValve.java" line="102" method="invoke"/>
                  <ns2:frame class="org.apache.catalina.core.StandardEngineValve" file="StandardEngineValve.java" line="109" method="invoke"/>
                  <ns2:frame class="org.apache.catalina.connector.CoyoteAdapter" file="CoyoteAdapter.java" line="298" method="service"/>
                  <ns2:frame class="org.apache.coyote.http11.Http11AprProcessor" file="Http11AprProcessor.java" line="864" method="process"/>
                  <ns2:frame class="org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler" file="Http11AprProtocol.java" line="579" method="process"/>
                  <ns2:frame class="org.apache.tomcat.util.net.AprEndpoint$Worker" file="AprEndpoint.java" line="1665" method="run"/>
                  <ns2:frame class="java.lang.Thread" line="unknown" method="run"/>
               </ns2:stackTrace>
            </ns2:exception>
         </detail>
      </S:Fault>
   </S:Body>
</S:Envelope>

any solution?

John_Henderson

Just found this thread as getting the same problem trying to get a ProcessDefinition using 'GetProcessDefintion' on a workflow that includes a XML Extensions step.

The Error is 'Error loading ProcessDefinition.Activities

Is there any plans for EWS to support initating workflows that have the OpenText Workflow extensions module in use? Seems a bit odd if not.

cheers

John