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Signal a wait state and suspend related running subprocesses
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created by <a href="http://community.jboss.org/people/festano1">Stefano Cancedda</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/563527#563527">View the full discussion</a>
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<div class="jive-rendered-content"><p><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">Hi All,</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"> </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">I'm trying to realize a complex use case with Jbpm 4, and I'm lookin for some advises and answers.</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">My requisites are to implements some kind of "phases" inside a business process (which models an authorization issuing system </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">for a governative trade organization) that can be "modular" and pluggable to the basis of some normative & legal factors.</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">I've move to the use of sub-processes in order to implement this, using a dynamic el expression to decide in runtime what process definition of </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">instantiate as sub-process, via parameterizing the jpdl sub-process' key attribute. </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">So the structure is composed by a main process, that groups these phases, and many other subprocesses which can can be </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">authored by external system and business designers.</div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;"> </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">Another requisite is that in one phase (es: when an integration request is started) the main process is paused, </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">a timer is started (the pause cannot be longer than a business value, and users must be notified if the suspension is reaching it's limit), </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">and then resumed. </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">For authoring sub-process I don't find seamless to design for any subprocess some kind of a "suspension" state </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">(this would be always present, and redundant), so I'm thinking to enforce the suspension state at the level of the main process:</div><div> </div><p>Hi All,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I'm trying to realize a complex use case with Jbpm 4, and I'm lookin for some advises and answers.</p><p>My requisites are to implements some kind of "<em>phases</em>" inside a business process (which models an authorization issuing system for a governative trade organization) that must be "modular" and <em>pluggable</em> to the basis of some normative & legal factors.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I've move to the use of sub-processes in order to implement this, using a dynamic <em>el expression</em> to decide in runtime what process definition of  instantiate as sub-process, via parameterizing the jpdl sub-process' key attribute. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>So the structure is composed by a main process, that groups these phases, and many other subprocesses which can can be </p><p>authored by external system and business designers.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Another requisite is that in one phase (es: when an integration request is started) the main process is paused, </p><p>a timer is started (the pause cannot be longer than a business value, and users must be notified if the suspension is reaching it's limit), </p><p>and then resumed. </p><p>For authoring sub-process I don't find seamless to design for any subprocess some kind of a "suspension" state </p><p>(this would be always present, and redundant), so I'm thinking to enforce the suspension state at the level of the main process:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><a href="http://community.jboss.org/servlet/JiveServlet/showImage/2-563527-9328/process.jpg"><span> http://community.jboss.org/servlet/JiveServlet/downloadImage/2-563527-9328/450-254/process.jpg </span></a></p><div> </div><div> </div><div><div>I cannot use the execution suspension of the main process, because of the timer's requisite (execution "<strong>suspended</strong>" state, also suspend timers and notifications),and I cannot <em>end</em> the sub-process because formally, at the end of the "wait" period it must progress where the sub-process was left.</div><div> </div><div>The problem is that when signaling the main execution to the "Suspend" state, there is a running sub-process instance that invalidate the operation:</div></div><p style="min-height: 8pt; height: 8pt; padding: 0px;">  </p><ol><ol><ol><li level="3" type="ol"><p> EXCEPTION ###########################################10:42:32,067 INF | <a class="" href="http://community.jboss.org/message/563527#563527">Signal a wait state and suspend related running subprocesses</a> exception while executing command org.jbpm.pvm.internal.cmd.SignalCmd@3ce40org.jbpm.api.JbpmException: execution[MainProcess.50026] has running subprocess: execution[SubProcessRequisitesEvaluation.340002] in state inactive-scope     at org.jbpm.pvm.internal.model.ExecutionImpl.checkActive(ExecutionImpl.java:1090)     at org.jbpm.pvm.internal.model.ExecutionImpl.signal(ExecutionImpl.java:427)     at org.jbpm.pvm.internal.cmd.SignalCmd.execute(SignalCmd.java:61)     at org.jbpm.pvm.internal.cmd.SignalCmd.execute(SignalCmd.java:35)     at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)     at org.jbpm.pvm.internal.tx.SpringCommandCallback.doInTransaction(SpringCommandCallback.java:45)     at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130)     at org.jbpm.pvm.internal.tx.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:49)     at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53)     at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40)     at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:56)     at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.signalExecutionById(ExecutionServiceImpl.java:93)</p></li></ol></ol></ol><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><div> </div><div> </div><div><div>I've tried to suspend the sub-process activity execution and resume the main-process activity that maps the sub-process execution (the one in "inactive-scope" state) but it have no effect: </div></div><div> </div><div><p>... ExecutionImpl execution = (ExecutionImpl) executionService.findExecutionById(processId);logger.info( "MAIN-PROCESS STATE= " + processId + " " + execution.getState() );if(execution.getSubProcessInstance() != null){     logger.info( "SUB_PROCESS STATE= " + execution.getSubProcessInstance().getId() + " " +                               execution.getSubProcessInstance().getState() );               if(Execution.STATE_INACTIVE_SCOPE.equalsIgnoreCase(execution.getSubProcessInstance().getState())){                    ExecutionImpl state = execution.getSubProcessInstance().findActiveExecutionIn(activeState);          state.suspend();          execution.getSubProcessInstance().suspend();          logger.info( "SUB_PROCESS STATE= " + execution.getSubProcessInstance().getId() + " " +                               execution.getSubProcessInstance().getState() );          logger.info( "SUB_PROCESS ACTIVITY STATE " + state + " " + state.getState() );          execution.resume();          logger.info( "MAIN-PROCESS STATE " + execution + " " + execution.getState() );     }}                                   executionService.signalExecutionById(processId, transitionName, variables); </p></div><div> </div><div> </div><div>this is the log:</div><div> </div><div><p>INFO  ProcessServiceBean - Active state: EVALUATIONINFO  ProcessServiceBean - MAIN-PROCESS STATE= MainProcess.50026 active-rootINFO  ProcessServiceBean - SUB_PROCESS STATE= SubProcessRequisitesEvaluation.340002 inactive-scopeINFO  ProcessServiceBean - SUB_PROCESS STATE= SubProcessRequisitesEvaluation.340002 suspendedINFO  ProcessServiceBean - SUB_PROCESS ACTIVITY STATE= execution[SubProcessRequisitesEvaluation.340002.TaxCompliance.340005] suspendedINFO  ProcessServiceBean - MAIN-PROCESS STATE execution[MainProcess.50026] active-root### EXCEPTION ###########################################12:05:39,201 INF | <a class="" href="http://community.jboss.org/message/563527#563527">Signal a wait state and suspend related running subprocesses</a> exception while executing command org.jbpm.pvm.internal.cmd.SignalCmd@ebd0beorg.jbpm.api.JbpmException: execution[MainProcess.50026] has running subprocess: execution[SubProcessRequisitesEvaluation.340002] in state suspended     at org.jbpm.pvm.internal.model.ExecutionImpl.checkActive(ExecutionImpl.java:1090)     at org.jbpm.pvm.internal.model.ExecutionImpl.signal(ExecutionImpl.java:427)     at org.jbpm.pvm.internal.cmd.SignalCmd.execute(SignalCmd.java:61)     at org.jbpm.pvm.internal.cmd.SignalCmd.execute(SignalCmd.java:35 </p></div><div> </div><div><div>So, I'm wondering if the behaviour of Jbpm is wrong or if it's supposed to work in this way (namely: "cannot signal parent execution id subprocess are suspended"),  or BTW if there is a common way to implement this set of requisites.</div><div> </div><div> </div><div>thank you in advance for any help you can give me!</div></div><div> </div><div> </div><div> </div></p></div>
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