11:33 p.m.
stevearoonie [https://community.jboss.org/people/stevearoonie] created the discussion
"How to get external event to cancel human task and progress process"
To view the discussion, visit: https://community.jboss.org/message/756037#756037
--------------------------------------------------------------
Hi all,
I my application I have the possibility that whilst a process is sitting at a Human Task
node that an external event could make that task no longer necessary, in which case I want
my workflow to progress. I have attempted to do this using the following pattern:
https://community.jboss.org/servlet/JiveServlet/showImage/2-756037-19301/...
https://community.jboss.org/servlet/JiveServlet/downloadImage/2-756037-19...
The gateway is an XOR. When I test this by completing Task 1, the process correctly moves
to Task 2. If instead I trigger the event (via
ksession.signalEvent("TaskPerformed", null, processInstance.getId());)
I get the sub-process End node being triggered but Task 1 is still active and Task 2 is
not entered.
To test this I am just using a customized version of ProcessTest that is created in a new
jBPM Project.
If instead I try processInstance.signalEvent("TaskPerformed", null); I get an
NPE in ProcessInstanceImpl (kruntime is null).
Can anybody tell me what I am doing wrong, or possibly another way I can produce the
behaviour I desire?
thanks in advance
Steve
--------------------------------------------------------------
Reply to this message by going to Community
[https://community.jboss.org/message/756037#756037]
Start a new discussion in jBPM at Community
[https://community.jboss.org/choose-container!input.jspa?contentType=1&...]
12:55 a.m.
New subject: [jBPM] - Re: How to get external event to cancel human task and progress process
stevearoonie [https://community.jboss.org/people/stevearoonie] created the discussion
"Re: How to get external event to cancel human task and progress process"
To view the discussion, visit: https://community.jboss.org/message/756046#756046
--------------------------------------------------------------
I solved this by using Guvnor instead of eclipse to edit the process which allowed me to
do the following:
- add a boundary event on Task 1 catching the TaskPerformed event
- set cancelActivity="true" for the event
https://community.jboss.org/servlet/JiveServlet/showImage/2-756046-19303/...
https://community.jboss.org/servlet/JiveServlet/downloadImage/2-756046-19...
Much simpler!
--------------------------------------------------------------
Reply to this message by going to Community
[https://community.jboss.org/message/756046#756046]
Start a new discussion in jBPM at Community
[https://community.jboss.org/choose-container!input.jspa?contentType=1&...]
6 a.m.
New subject: [jBPM] - Re: How to get external event to cancel human task and progress process
Andrea Carpineti [https://community.jboss.org/people/acarpine] created the discussion
"Re: How to get external event to cancel human task and progress process"
To view the discussion, visit: https://community.jboss.org/message/756974#756974
--------------------------------------------------------------
Trying to use a boundary intermediate event on my user task (as used by Steve) I get an
error when I try to build the package
400 An error occurred building the module.
the +server.log+
reports
12:52:17,206 ERROR [stderr] (http-localhost-127.0.0.1-8080-5)
java.io.NotSerializableException: org.jbpm.bpmn2.xml.ProcessHandler$1
12:52:17,206 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1164)
[...]
12:52:17,237 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952)
12:52:17,237 ERROR [stderr] (http-localhost-127.0.0.1-8080-5) at
java.lang.Thread.run(Thread.java:662)
12:52:17,237 INFO [stdout] (http-localhost-127.0.0.1-8080-5) ERROR 30-08 12:52:17,237
(LoggingHelper.java:error:67) An error occurred building the module [defaultPackage]:
org.jbpm.bpmn2.xml.ProcessHandler$1
12:52:17,237 INFO [stdout] (http-localhost-127.0.0.1-8080-5) ERROR 30-08 12:52:17,237
(LoggingHelper.java:error:74) Service method 'public abstract
org.drools.guvnor.client.rpc.BuilderResult
org.drools.guvnor.client.rpc.ModuleService.buildPackage(java.lang.String,boolean,java.lang.String,java.lang.String,java.lang.String,boolean,java.lang.String,java.lang.String,boolean,java.lang.String)
throws com.google.gwt.user.client.rpc.SerializationException' threw an unexpected
exception: org.drools.repository.RulesRepositoryException: An error occurred building the
module.
12:52:17,237 INFO [stdout] (http-localhost-127.0.0.1-8080-5)
org.drools.repository.RulesRepositoryException: An error occurred building the module.
12:52:17,237 INFO [stdout] (http-localhost-127.0.0.1-8080-5) at
org.drools.guvnor.server.builder.PackageAssembler.getCompiledBinary(PackageAssembler.java:186)
[...]
12:52:17,253 INFO [stdout] (http-localhost-127.0.0.1-8080-5) at
java.lang.Thread.run(Thread.java:662)
12:52:17,253 INFO [stdout] (http-localhost-127.0.0.1-8080-5) Caused by:
java.io.NotSerializableException: org.jbpm.bpmn2.xml.ProcessHandler$1
12:52:17,253 INFO [stdout] (http-localhost-127.0.0.1-8080-5) at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1164)
[...]
12:52:17,253 INFO [stdout] (http-localhost-127.0.0.1-8080-5) at
org.drools.guvnor.server.builder.PackageAssembler.getCompiledBinary(PackageAssembler.java:180)
12:52:17,253 INFO [stdout] (http-localhost-127.0.0.1-8080-5) ... 40 more
The error is easily repro just setting the +CancelActivity+ attribute to +true+ for Timer
Intermediate Event and Signal Intermediate Event (I haven't tried the others).
any idea?
thanks
--------------------------------------------------------------
Reply to this message by going to Community
[https://community.jboss.org/message/756974#756974]
Start a new discussion in jBPM at Community
[https://community.jboss.org/choose-container!input.jspa?contentType=1&...]
12:57 a.m.
New subject: [jBPM] - Re: How to get external event to cancel human task and progress process
Maciej Swiderski [https://community.jboss.org/people/swiderski.maciej] created the
discussion
"Re: How to get external event to cancel human task and progress process"
To view the discussion, visit: https://community.jboss.org/message/756048#756048
--------------------------------------------------------------
you should put a boundary interrupting event on your user task (or sub process if needed)
to have alternative flow taken in case of external event and ensure that user task will be
canceled.
HTH
--------------------------------------------------------------
Reply to this message by going to Community
[https://community.jboss.org/message/756048#756048]
Start a new discussion in jBPM at Community
[https://community.jboss.org/choose-container!input.jspa?contentType=1&...]
4984
days inactive
4987
days old
3 comments
3 participants
participants (3)
-
Andrea Carpineti -
Maciej Swiderski
-
stevearoonie