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Re: Drools Simple rule evaluation
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created by <a href="https://community.jboss.org/people/ous2k">ous2k</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/726739#726739">View the full discussion</a>
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<div class="jive-rendered-content"><p>i' m sorry for making things hard to analyse , i think you are talking about   --> ksession.startProcess("openState",params);</p><p>this all the code</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>package com.ocana.workflow.dabviewticketing.server.bo;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import java.util.Date;</p><p>import java.util.HashMap;</p><p>import java.util.Map;</p><p>import java.util.Properties;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import org.drools.KnowledgeBase;</p><p>import org.drools.KnowledgeBaseFactory;</p><p>import org.drools.builder.KnowledgeBuilder;</p><p>import org.drools.builder.KnowledgeBuilderError;</p><p>import org.drools.builder.KnowledgeBuilderErrors;</p><p>import org.drools.builder.KnowledgeBuilderFactory;</p><p>import org.drools.builder.ResourceType;</p><p>import org.drools.io.ResourceFactory;</p><p>import org.drools.logger.KnowledgeRuntimeLogger;</p><p>import org.drools.logger.KnowledgeRuntimeLoggerFactory;</p><p>import org.drools.runtime.KnowledgeSessionConfiguration;</p><p>import org.drools.runtime.StatefulKnowledgeSession;</p><p>import org.jbpm.process.instance.event.DefaultSignalManagerFactory;</p><p>import org.jbpm.process.instance.impl.DefaultProcessInstanceManagerFactory;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import com.ocana.workflow.dabviewticketing.server.model.SystemStatus;</p><p>import com.ocana.workflow.dabviewticketing.server.model.Ticket;</p><p>//import com.sample.CustomProcessEventListener;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>//import com.sample.CustomProcessEventListener;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public class JBPMClient {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>  </p><p>          public static final void main(String[] args) {</p><p>                    try {</p><p>  </p><p>                              KnowledgeBase eventKbase = readEventKnowledgeBase(); //read.dlr</p><p>                              StatefulKnowledgeSession eventKsession = eventKbase.newStatefulKnowledgeSession();</p><p>  </p><p>                              KnowledgeBase kbase = readKnowledgeBase();//read BPMN</p><p>                              StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();</p><p>  </p><p>                              Properties properties = new Properties();</p><p>                              properties.put("drools.processInstanceManagerFactory",DefaultProcessInstanceManagerFactory.class.getName());</p><p>                              properties.put("drools.processSignalManagerFactory"  ,DefaultSignalManagerFactory.class.getName());</p><p>                              KnowledgeSessionConfiguration config = KnowledgeBaseFactory.newKnowledgeSessionConfiguration(properties);</p><p>  </p><p>                              ksession = kbase.newStatefulKnowledgeSession(config, null); </p><p>                              ksession.addEventListener(new CustomProcessEventListener(eventKsession));</p><p>                              KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newFileLogger(ksession, "test");</p><p>  </p><p>                              //insering Ticket </p><p>                              Ticket ticket = new Ticket();</p><p>                              ticket.setStatus("open");</p><p>                              ticket.setContent("testing content");</p><p>                              ticket.setOpeningDate(new Date());</p><p>                              ticket.setIdTicket(1);</p><p>  </p><p>                              ksession.insert(ticket);</p><p>                              ksession.fireAllRules();</p><p>                              Map<String, Object> params = new HashMap<String, Object>();</p><p>                              params.put("ticket", ticket);</p><p>                              ksession.startProcess("openState",params);</p><p>  </p><p>                              logger.close();</p><p>                    } catch (Throwable t) {</p><p>                              t.printStackTrace();</p><p>                    }</p><p>          }</p><p>  </p><p>          private static KnowledgeBase readKnowledgeBase() throws Exception {</p><p>                    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();</p><p>                    kbuilder.add(ResourceFactory.newClassPathResource("StateMachine.bpmn"), ResourceType.BPMN2);</p><p>                    return kbuilder.newKnowledgeBase();</p><p>          }</p><p>  </p><p>          private static KnowledgeBase readEventKnowledgeBase() throws Exception {</p><p>                    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();</p><p>                    kbuilder.add(ResourceFactory.newClassPathResource("OpenStateRules.drl"), ResourceType.DRL);</p><p>                    KnowledgeBuilderErrors errors = kbuilder.getErrors();</p><p>                    if (errors.size() > 0) {</p><p>                              for (KnowledgeBuilderError error: errors) {</p><p>                                        System.err.println(error);</p><p>                              }</p><p>                              throw new IllegalArgumentException("Could not parse knowledge.");</p><p>                    }</p><p>                    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();</p><p>                    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());</p><p>                    return kbase;</p><p>          }</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>#created on: Mar 7, 2012</p><p>#package com.hemilco; </p><p>#list any import classes here.</p><p>import org.drools.runtime.process.WorkflowProcessInstance;</p><p>import org.drools.runtime.process.ProcessContext</p><p>import org.drools.event.process.ProcessStartedEvent;</p><p>import com.ocana.workflow.dabviewticketing.server.model.Ticket;</p><p>import java.util.Date</p><p>import java.util.List</p><p>#declare any global variables here</p><p>declare Ticket </p><p>          @role(event)</p><p>end</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>declare Server</p><p>   idTicket : int</p><p>   status : int</p><p>   openingDate : Date // percentage</p><p>   content: Date </p><p>end</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>dialect "mvel" </p><p>          rule "Check 5mn condition"</p><p>          when</p><p>                                 $ticket:Ticket(status=="open");</p><p>          then </p><p>                  System.out.println("New Ticket is opened")</p><p>                              #$server.getVirtualizations().add($request.getVirtualization()); </p><p>          end </p></div>
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