custom workflow difficulties

georgy — Wed, 30 Jul 2014 14:11:26 GMT

Hello I'm having difficulties creating a custom advanced workflow. I've been working on it for well over a week, but don't fully understand all the facets of workflows.We are using Alfrsco Community Edition 5.0a.After making some changes today I am curently getting the error messagerg.activiti.eng

Re: custom workflow difficulties

arak — Wed, 30 Jul 2014 14:40:00 GMT

Hi Georgy,

Can you copy and paste (or attach is better) the complete error log of your application server? this is for see more details.

Greetings
Pablo Arak.

Re: custom workflow difficulties

georgy — Wed, 30 Jul 2014 14:49:16 GMT

I have gone through the Tutorials:
http://ecmarchitect.com/alfresco-developer-series-tutorials/workflow/tutorial/tutorial.html
http://jmuras.com/blog/2012/creation-of-workflow-in-alfresco-using-activiti-step-by-step/
although trying to implement my needs, instead of first doing it exactly as in the Tutorial.
I was not able to deploy the result of following the tutorial, until I removed a lot of the assignees and other code. The documentation on the alfresco website was also referenced.

I deploy the workflows through /alfresco/faces/jsp/admin/workflow.jsp after creating custom forms following the tuorial, but failing to automatically deploy everything. Even reading the Alfresco documentation on the website I am not sure where to add all the necessry code for deploying workflows automatically.

I tried adapting the activiti-adhoc-timer example by adding another UserTask to it, unsuccessfully.

While I am happy trying to learn all the facets involved in creating a custom workflow, my time to implement this one is running out. I would like to have this workflow working before my current internship ends, if possible. Sadly, nobody inhouse can help me.

One mistake which took me a long time to notice was that creating a UserTask from the 'ring' around the AlfrescoStartEvent (in the Activiti Designer)creates a normal UserTask, and not an AlfrescoUserTask. This caused a great deal of frustration as deplyoing a workflow model created with the Alfresco elements was much easier, and my first diagram created models all failed to deploy.

Re: custom workflow difficulties

georgy — Wed, 30 Jul 2014 14:58:37 GMT

Attached is the Alfresco log
(I had to delete some entries, as it was greater than 2MB)

Re: custom workflow difficulties

georgy — Thu, 31 Jul 2014 12:00:37 GMT

Hello again,
Thank you Pablo for your prompt reply. I hope that the log file can offer more insight.

Regards the error message
<blockcode>org.activiti.engine.ActivitiIllegalArgumentException: org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener doesn't implement interface org.activiti.engine.delegate.ExecutionListener not interface org.activiti.engine.delegate.JavaDelegate</blockcode>
In the Alfresco Designer I added the Listeneres as Task Listeners of Type 'Alfresco task script'.

Re: custom workflow difficulties

georgy — Thu, 31 Jul 2014 12:28:52 GMT

Hello,
I will be making a lot of beginner mistakes I'm sure. This one was in keeping my previous, failed custom workflows deployed.

After I came across the following link I deleted all unnecessary workflow defnitions.
http://ecmarchitect.com/archives/2011/04/27/1357

This solved the following error:
<blockcode>org.activiti.engine.ActivitiIllegalArgumentException: org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener doesn't implement interface org.activiti.engine.delegate.ExecutionListener not interface org.activiti.engine.delegate.JavaDelegate</blockcode>

Re: custom workflow difficulties

georgy — Thu, 31 Jul 2014 12:43:47 GMT

I have changed my code today.
As I have two decision gateways, I need to define two seperate variables for the two decision outcomes. I set each one in the task preceding a gateway with a

execution.setVariable('reviewOutcome', task.getVariable('reviewOutcome'))‍

.

I am getting the error message "No outgoing sequence flow of the exclusive …. could be selected for continueing the proces".

While I google for the solution I will still post my new code here. May be someone has time to look at it and has a quick answer =O)

("Die Hoffnung stirbt zuletzt") ("….aber sie stirbt.)


<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
  <process id="activiti_apaVPAprocess" name="APA/VPA Freigabe Workflow" isExecutable="true">
    <documentation>v.0.9</documentation>
    <startEvent id="startEvent" name="Alfresco start" activiti:formKey="wf:submitAdhocTask"></startEvent>
    <userTask id="qp_assignReviewTask" name="assign review" activiti:assignee="frehner" activiti:formKey="wf:adhocTask">
      <extensionElements>
        <activiti:taskListener event="create" class="org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener">
          <activiti:field name="script">
            <activiti:string><![CDATA[if (typeof bpm_workflowDueDate != 'undefined') task.dueDate = bpm_workflowDueDate;
if (typeof bpm_workflowPriority != 'undefined') task.priority = bpm_workflowPriority;
if (typeof bpm_comment != 'undefined') task.setVariable('bpm_comment', bpm_comment);
]]></activiti:string>
          </activiti:field>
        </activiti:taskListener>
        <activiti:taskListener event="complete" class="org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener">
          <activiti:field name="script">
            <activiti:string><![CDATA[execution.setVariable('bpm_assignee', task.getVariable('bpm_assignee'));
execution.setVariable('bpm_comment', task.getVariable('bpm_comment'));
execution.setVariable('abteilungsleiter', person);
execution.setVariable('bpm_dueDate', task.dueDate);
execution.setVariable('bpm_priority', task.priority);]]></activiti:string>
          </activiti:field>
        </activiti:taskListener>
      </extensionElements>
    </userTask>
    <userTask id="abtL_reviewTask" name="abtl_review" activiti:assignee="frehner" activiti:formKey="wf:activitiReviewTask">
      <extensionElements>
        <activiti:taskListener event="create" class="org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener">
          <activiti:field name="script">
            <activiti:string><![CDATA[if (typeof bpm_workflowDueDate != 'undefined') task.dueDate = bpm_workflowDueDate;
if (typeof bpm_workflowPriority != 'undefined') task.priority = bpm_workflowPriority;
if (typeof bpm_comment != 'undefined') task.setVariable('bpm_comment', bpm_comment);
]]></activiti:string>
          </activiti:field>
        </activiti:taskListener>
        <activiti:taskListener event="complete" class="org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener">
          <activiti:field name="script">
            <activiti:string><![CDATA[execution.setVariable('av_kab', person);
execution.setVariable('bpm_comment', task.getVariable('bpm_comment'));
execution.setVariable('abtl_reviewOutcome', task.getVariable('abtl_reviewOutcome'));]]></activiti:string>
          </activiti:field>
        </activiti:taskListener>
      </extensionElements>
    </userTask>
    <userTask id="av_reviewTask" name="av_review" activiti:assignee="keller" activiti:formKey="wf:activitiReviewTask">
      <extensionElements>
        <activiti:taskListener event="create" class="org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener">
          <activiti:field name="script">
            <activiti:string><![CDATA[if (typeof bpm_workflowDueDate != 'undefined') task.dueDate = bpm_workflowDueDate;
if (typeof bpm_workflowPriority != 'undefined') task.priority = bpm_workflowPriority;
if (typeof bpm_comment != 'undefined') task.setVariable('bpm_comment', bpm_comment);]]></activiti:string>
          </activiti:field>
        </activiti:taskListener>
        <activiti:taskListener event="complete" class="org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener">
          <activiti:field name="script">
            <activiti:string><![CDATA[execution.setVariable('bpm_comment', task.getVariable('bpm_comment'));
execution.setVariable('av_ReviewOutcome', task.getVariable('av_ReviewOutcome'));]]></activiti:string>
          </activiti:field>
        </activiti:taskListener>
      </extensionElements>
    </userTask>
    <userTask id="documentsApproved" name="approved" activiti:assignee="frehner" activiti:formKey="wf:approvedTask">
      <documentation>Das Dokument wurde überprüft und genehmigt.
/ The document was reviewed and approved.</documentation>
      <extensionElements>
        <activiti:taskListener event="create" class="org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener">
          <activiti:field name="script">
            <activiti:string><![CDATA[if (typeof bpm_workflowDueDate != 'undefined') task.dueDate = bpm_workflowDueDate;
if (typeof bpm_workflowPriority != 'undefined') task.priority = bpm_workflowPriority;
if (typeof bpm_comment != 'undefined') task.setVariable('bpm_comment', bpm_comment);]]></activiti:string>
          </activiti:field>
        </activiti:taskListener>
      </extensionElements>
    </userTask>
    <sequenceFlow id="flow1" name="1" sourceRef="startEvent" targetRef="qp_assignReviewTask"></sequenceFlow>
    <sequenceFlow id="flow2" name="2" sourceRef="qp_assignReviewTask" targetRef="abtL_reviewTask"></sequenceFlow>
    <exclusiveGateway id="reviewDecision1" name="Exclusive Gateway"></exclusiveGateway>
    <sequenceFlow id="flow3" name="3" sourceRef="abtL_reviewTask" targetRef="reviewDecision1"></sequenceFlow>
    <sequenceFlow id="flow4" name="4" sourceRef="reviewDecision1" targetRef="av_reviewTask">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${abtl_reviewOutcome == 'Approve'}]]></conditionExpression>
    </sequenceFlow>
    <exclusiveGateway id="reviewDecision2" name="Exclusive Gateway"></exclusiveGateway>
    <sequenceFlow id="flow6" name="6" sourceRef="av_reviewTask" targetRef="reviewDecision2"></sequenceFlow>
    <sequenceFlow id="flow7" name="7" sourceRef="reviewDecision2" targetRef="documentsApproved">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${av_ReviewOutcome == 'Approve'}]]></conditionExpression>
    </sequenceFlow>
    <endEvent id="endEvent" name="End"></endEvent>
    <sequenceFlow id="flow10" name="10" sourceRef="documentsApproved" targetRef="endEvent"></sequenceFlow>
    <userTask id="rejected" name="rejected" activiti:assignee="frehner" activiti:formKey="wf:rejectedTask">
      <documentation>Das Dokument wurde überprüft und abgelehnt.
/ The document was reviewed and rejected.</documentation>
      <extensionElements>
        <activiti:taskListener event="create" class="org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener">
          <activiti:field name="script">
            <activiti:string><![CDATA[if (typeof bpm_workflowDueDate != 'undefined') task.dueDate = bpm_workflowDueDate;
if (typeof bpm_workflowPriority != 'undefined') task.priority = bpm_workflowPriority;
if (typeof bpm_comment != 'undefined') task.setVariable('bpm_comment', bpm_comment);]]></activiti:string>
          </activiti:field>
        </activiti:taskListener>
      </extensionElements>
    </userTask>
    <sequenceFlow id="flow5" name="5" sourceRef="reviewDecision1" targetRef="rejected">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${abtl_reviewOutcome == 'Reject'}]]></conditionExpression>
    </sequenceFlow>
    <sequenceFlow id="flow8" name="8" sourceRef="reviewDecision2" targetRef="rejected">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${av_ReviewOutcome == 'Reject'}]]></conditionExpression>
    </sequenceFlow>
    <sequenceFlow id="flow9" name="9" sourceRef="rejected" targetRef="qp_assignReviewTask"></sequenceFlow>
  </process>
</definitions>
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

I still need to find out the correct way of passing on the assignee in a workflow with several steps.

topic Re: custom workflow difficulties in Alfresco Archive

custom workflow difficulties

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