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Re: Invoke Human Task Flow - Using API
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<span style="margin-bottom: 10px;">
created by <a href="https://community.jboss.org/people/roxy1987">roxy1987</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/801956#801956">View the full discussion</a>
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<div class="jive-rendered-content"><p>To start a process</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java"><font color="navy"><b>public</b></font> <font color="navy"><b>static</b></font> <font color="navy"><b>void</b></font> startProc() <font color="navy"><b>throws</b></font> Exception
<font color="navy">{</font>
  <font color="navy"><b>try</b></font> <font color="navy">{</font>
   KnowledgeBase kbase = readKnowledgeBase();
   StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);
   KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newThreadedFileLogger(ksession, <font color="red">"test"</font>, 1000);
   ksession.startProcess(<font color="red">"com.sample.demoProc"</font>);
   <font color="navy"><b>if</b></font>(humanTaskHandler.isConnected())
   <font color="navy">{</font>
    humanTaskHandler.dispose();
   <font color="navy">}</font>
   System.out.println(<font color="red">"Process started ..."</font>);
   logger.close();
  <font color="navy">}</font> <font color="navy"><b>catch</b></font> (Throwable t) <font color="navy">{</font>
   t.printStackTrace();
  <font color="navy">}</font>
<font color="navy">}</font>
<font color="navy"><b>private</b></font> <font color="navy"><b>static</b></font> KnowledgeBase readKnowledgeBase() <font color="navy"><b>throws</b></font> Exception <font color="navy">{</font>
  KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
  kbuilder.add(ResourceFactory.newClassPathResource(<font color="red">"demoProc.bpmn"</font>), ResourceType.BPMN2);
  <font color="navy"><b>return</b></font> kbuilder.newKnowledgeBase();
<font color="navy">}</font>
<font color="navy"><b>private</b></font> <font color="navy"><b>static</b></font> StatefulKnowledgeSession createKnowledgeSession(KnowledgeBase kbase) <font color="navy">{</font>
  StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
  humanTaskHandler = <font color="navy"><b>new</b></font> HornetQHTWorkItemHandler(ksession);
  humanTaskHandler.setIpAddress(<font color="red">"localhost"</font>);
  humanTaskHandler.setPort(5153);
  ksession.getWorkItemManager().registerWorkItemHandler(<font color="red">"Human Task"</font>, humanTaskHandler); 
  <font color="navy"><b>return</b></font> ksession;
<font color="navy">}</font>
 
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>To complete a human task</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java"><font color="navy"><b>public</b></font> <font color="navy"><b>static</b></font> <font color="navy"><b>void</b></font> completeTask(<font color="navy"><b>long</b></font> taskId, String userId) <font color="navy"><b>throws</b></font> Exception
<font color="navy">{</font>
  String name = <font color="red">"client 1"</font>+UUID.randomUUID();
  TaskClient client = <font color="navy"><b>new</b></font> TaskClient(<font color="navy"><b>new</b></font> HornetQTaskClientConnector(name, <font color="navy"><b>new</b></font> HornetQTaskClientHandler(SystemEventListenerFactory.getSystemEventListener())));
  BlockingTaskOperationResponseHandler responseHandler = <font color="navy"><b>new</b></font> BlockingTaskOperationResponseHandler();
  ContentData contentData = <font color="navy"><b>null</b></font>;
  client.connect(ipAddress, port);
  <font color="navy"><b>try</b></font>
  <font color="navy">{</font>
   client.start(taskId, userId, responseHandler);
   responseHandler = <font color="navy"><b>new</b></font> BlockingTaskOperationResponseHandler();
   responseHandler.waitTillDone(5000);
   client.complete(taskId, userId, contentData, responseHandler);
   responseHandler.waitTillDone(5000);
   BpmAPI.completeWorkItem(taskId);
  <font color="navy">}</font>
  <font color="navy"><b>catch</b></font>(Exception e)
  <font color="navy">{</font>
   BpmExceptionHandler.handleException(e);
  <font color="navy">}</font>
  <font color="navy"><b>finally</b></font>
  <font color="navy">{</font>
   <font color="navy"><b>if</b></font>(client != <font color="navy"><b>null</b></font>)
   <font color="navy">{</font>
    client.disconnect();
   <font color="navy">}</font>
  <font color="navy">}</font>
<font color="navy">}</font>
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>To Pause/Suspend</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java"><font color="navy"><b>public</b></font> <font color="navy"><b>static</b></font> <font color="navy"><b>void</b></font> completeTask(<font color="navy"><b>long</b></font> taskId, String userId, Map<String, Object> map) <font color="navy"><b>throws</b></font> Exception
<font color="navy">{</font>
  String name = <font color="red">"client 1"</font>+UUID.randomUUID();
  TaskClient client = <font color="navy"><b>new</b></font> TaskClient(<font color="navy"><b>new</b></font> HornetQTaskClientConnector(name, <font color="navy"><b>new</b></font> HornetQTaskClientHandler(SystemEventListenerFactory.getSystemEventListener())));
  BlockingTaskOperationResponseHandler responseHandler = <font color="navy"><b>new</b></font> BlockingTaskOperationResponseHandler();
  client.connect(ipAddress, port);
  <font color="navy"><b>try</b></font>
  <font color="navy">{</font>
   client.suspend(taskId, userId, responseHandler);
   responseHandler.waitTillDone(5000);
  <font color="navy">}</font>
  <font color="navy"><b>catch</b></font>(Exception e)
  <font color="navy">{</font>
   BpmExceptionHandler.handleException(e);
  <font color="navy">}</font>
  <font color="navy"><b>finally</b></font>
  <font color="navy">{</font>
   <font color="navy"><b>if</b></font>(client != <font color="navy"><b>null</b></font>)
   <font color="navy">{</font>
    client.disconnect();
   <font color="navy">}</font>
  <font color="navy">}</font>
<font color="navy">}</font>
 
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I dont use Guvnor so cant say about that.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Regards.</p></div>
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<p style="margin: 0;">Reply to this message by <a href="https://community.jboss.org/message/801956#801956">going to Community</a></p>
<p style="margin: 0;">Start a new discussion in jBPM at <a href="https://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034">Community</a></p>
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