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Re: JBPM5 Starting Guvnor process question
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created by <a href="http://community.jboss.org/people/npereira">npereira</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/622419#622419">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi forum,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I'm still having some dificulty with his question, I was wondering if someone could help.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="western">What we are trying to implement is a startProcess() method.</p><p class="western">The objective of this method is to contact the runtime engine and “tell it” to start a given process, without using REST.</p><p class="western" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="western">So far we have gotten to these point.</p><p class="western" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="western"><span style="color: #000000; font-size: 10pt; font-family: monospace;">KnowledgeAgentConfiguration aconf = KnowledgeAgentFactory.<em>newKnowledgeAgentConfiguration</em>();</span></p><p class="western"><span style="font-size: 10pt; font-family: monospace;"><span style="color: #000000;"> KnowledgeAgent kagent = KnowledgeAgentFactory.</span><span style="color: #000000;"><em>newKnowledgeAgent</em></span><span style="color: #000000;">(</span><span style="color: #2a00ff;">"testKAgent"</span><span style="color: #000000;">, aconf);     </span></span> </p><p class="western"><span style="font-family: monospace;"><span style="color: #000000;">String fileName = </span><span style="color: #2a00ff;">"/home/n1w3/Downloads/ChangeSet.xml"</span><span style="color: #000000;">;</span></span></p><p class="western"><span style="color: #000000; font-size: 10pt; font-family: monospace;"> kagent.applyChangeSet(ResourceFactory.<em>newFileResource</em>(fileName));</span></p><p class="western"><span style="color: #000000; font-size: 10pt; font-family: monospace;"> KnowledgeBase kbase = kagent.getKnowledgeBase();</span></p><p class="western" style="min-height: 8pt; height: 8pt; padding: 0px;"><span style="color: #000000; font-size: 10pt; font-family: monospace;"> </span> </p><p class="western"><span style="color: #000000; font-size: 10pt; font-family: monospace;"> StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();</span></p><p class="western"><span style="color: #000000; font-size: 10pt; font-family: monospace;"> Collection<ProcessInstance> c = ksession.getProcessInstances();</span></p><p class="western" style="min-height: 8pt; height: 8pt; padding: 0px;"><span style="color: #000000; font-size: 10pt; font-family: monospace;"> </span> </p><p class="western"><span style="font-size: 10pt; font-family: monospace;"><span style="color: #000000;"> System.</span><span style="color: #0000c0;"><em>out</em></span><span style="color: #000000;">.println(c.size());</span></span></p><p class="western"><span style="color: #000000; font-size: 10pt; font-family: monospace;"> kbase = kagent.getKnowledgeBase();</span></p><p class="western"><span style="color: #000000;"> </span><span style="font-size: 10pt; font-family: monospace;"><span style="color: #7f0055;"><strong>for</strong></span><span style="color: #000000;"> (Process process: kbase.getProcesses()) {</span></span></p><p class="western"><span style="color: #000000;"> <span style="font-family: monospace;"><span style="font-size: 10pt;"> System.</span><span style="color: #0000c0;"><em>out</em></span><span style="color: #000000;">.println(</span><span style="color: #2a00ff;">"Loading process from Guvnor: "</span><span style="color: #000000;"> + process.getId());</span></span></span></p><p class="western"><span style="color: #000000;"> <span style="font-size: 10pt; font-family: monospace;">}</span></span></p><p class="western" style="min-height: 8pt; height: 8pt; padding: 0px;"><span style="color: #000000; font-size: 10pt; font-family: monospace;"> </span> </p><p class="western"><span style="color: #000000;">  <span style="font-family: monospace;"><span style="font-size: 10pt;">ksession.getWorkItemManager().registerWorkItemHandler(</span><span style="color: #2a00ff;">"Human Task"</span><span style="color: #000000;">, </span><span style="color: #7f0055;"><strong>new</strong></span><span style="color: #000000;"> WSHumanTaskHandler());</span></span></span></p><p class="western"><span style="color: #000000;"> </span><span style="font-size: 10pt; font-family: monospace;"><span style="color: #3f7f5f;">//StatefulKnowledgeSession </span><span style="color: #3f7f5f; text-decoration: underline;">ksession</span><span style="color: #3f7f5f;"> = kbase.newStatefulKnowledgeSession();            </span></span> </p><p class="western"><span style="color: #000000;"> <span style="font-family: monospace;"><span style="font-size: 10pt;">ProcessInstance processInstance = ksession.startProcess(</span><span style="color: #2a00ff;">"com.temenos.bpmn.CustomerOnBoarding"</span><span style="color: #000000;">);</span></span></span></p><p class="western" style="min-height: 8pt; height: 8pt; padding: 0px;"><span style="color: #000000;"> </span>  </p><p class="western"><span style="color: #000000;"> <span style="font-size: 10pt; font-family: monospace;">System.</span></span><span style="color: #0000c0; font-size: 10pt; font-family: monospace;"><em>out</em></span><span style="color: #000000; font-size: 10pt; font-family: monospace;">.println(processInstance.getId());</span></p><p class="western" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="western"><span style="color: #000000; font-size: 12pt; font-family: 'Liberation Serif', serif;">These peace of code, lets us fetch the processes that are in guvnor and then start a new process. </span> </p><p class="western"><span style="color: #000000; font-size: 12pt; font-family: 'Liberation Serif', serif;">The problem with it, is that I have to maintain my session open so that the process gets orchestrated. If I stop the program, the process does not get orchestrated.</span></p><p class="western" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="western"><span style="color: #000000; font-size: 12pt; font-family: 'Liberation Serif', serif;">The objective we are trying to obtain is something like a “fire and forget” approach where we say start process and the runtime engine orchestrates it.</span></p><p class="western" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="western"><span style="color: #000000; font-size: 12pt; font-family: 'Liberation Serif', serif;">Can anybody help us out with this one?</span></p></div>
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