4 Replies Latest reply on Jan 12, 2012 10:01 PM by hong lu

    Could not parse knowledge. It is that the process definition is invalid or a bug of JBPM5.2

    hong lu Newbie

      Hi,

       

      I defined a process using bpmn2 visual editor according to JBPM5.2's sample.

       

      Java Code:

       

      package com.test.workflow;
      import org.drools.KnowledgeBase;
      import org.drools.builder.KnowledgeBuilder;
      import org.drools.builder.KnowledgeBuilderFactory;
      import org.drools.builder.ResourceType;
      import org.drools.io.ResourceFactory;
      import org.drools.runtime.StatefulKnowledgeSession;
      import org.drools.runtime.process.ProcessInstance;
      import org.jbpm.process.instance.impl.demo.SystemOutWorkItemHandler;
      public class BPMN2Test {
       public static void main(String[] args) {
        KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
        kbuilder.add(ResourceFactory.newClassPathResource("com/test/workflow/flow/eventBasedSplit.bpmn"),
          ResourceType.BPMN2);
        KnowledgeBase kbase = kbuilder.newKnowledgeBase();
        StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
        ksession.getWorkItemManager().registerWorkItemHandler("startNotifyEmail", new SystemOutWorkItemHandler());
        ksession.getWorkItemManager().registerWorkItemHandler("endNotifyEmail", new SystemOutWorkItemHandler());
        // Yes
        ProcessInstance processInstance = ksession.startProcess("com.sample.test");
        ksession.getWorkItemManager().registerWorkItemHandler("startNotifyEmail", new SystemOutWorkItemHandler());
        ksession.getWorkItemManager().registerWorkItemHandler("endNotifyEmail", new SystemOutWorkItemHandler());
        ksession.signalEvent("Yes", "YesValue", processInstance.getId());
        // No
        processInstance = ksession.startProcess("com.sample.test");
        ksession.getWorkItemManager().registerWorkItemHandler("Email1", new SystemOutWorkItemHandler());
        ksession.getWorkItemManager().registerWorkItemHandler("Email2", new SystemOutWorkItemHandler());
        ksession.signalEvent("No", "NoValue", processInstance.getId());
       }
      }
      

       

      BPMN2 file:

       

       <?xml version="1.0" encoding="UTF-8"?>
      <bpmn2:definitions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bpmn2="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" xmlns:drools="http://www.jboss.org/drools" id="Definitions_1">
        <bpmn2:process id="com.sample.test" name="Test" isExecutable="true">
          <bpmn2:startEvent id="startEvent" name="Start">
            <bpmn2:outgoing>startFlow</bpmn2:outgoing>
          </bpmn2:startEvent>
          <bpmn2:sequenceFlow id="startFlow" name="startFlow" sourceRef="startEvent" targetRef="startNotifyEmail"/>
          <bpmn2:task id="startNotifyEmail" drools:taskName="Email1" name="startNotifyEmail">
            <bpmn2:incoming>startFlow</bpmn2:incoming>
            <bpmn2:outgoing>processSplitInFlow</bpmn2:outgoing>
            <bpmn2:ioSpecification id="startNotifyEmail">
              <bpmn2:inputSet id="startNotifyInput" name="startNotifyInput"/>
              <bpmn2:outputSet id="startNotifyOutput" name="startNotifyOutput"/>
            </bpmn2:ioSpecification>
          </bpmn2:task>
          <bpmn2:sequenceFlow id="processSplitInFlow" name="processSplitInFlow" sourceRef="startNotifyEmail" targetRef="splitGateWay"/>
          <bpmn2:eventBasedGateway id="splitGateWay" name="splitGateWay" gatewayDirection="Diverging">
            <bpmn2:incoming>processSplitInFlow</bpmn2:incoming>
            <bpmn2:outgoing>SequenceFlow_6</bpmn2:outgoing>
            <bpmn2:outgoing>SequenceFlow_8</bpmn2:outgoing>
          </bpmn2:eventBasedGateway>
          <bpmn2:intermediateCatchEvent id="IntermediateCatchEvent_1" name="event">
            <bpmn2:incoming>SequenceFlow_6</bpmn2:incoming>
            <bpmn2:outgoing>SequenceFlow_10</bpmn2:outgoing>
            <bpmn2:dataOutput id="DataOutput_1" name="event"/>
            <bpmn2:dataOutputAssociation id="DataOutputAssociation_1">
              <bpmn2:sourceRef>DataOutput_1</bpmn2:sourceRef>
              <bpmn2:targetRef>x</bpmn2:targetRef>
            </bpmn2:dataOutputAssociation>
            <bpmn2:outputSet id="OutputSet_2" name="OutputSet_2">
              <bpmn2:dataOutputRefs>DataOutput_1</bpmn2:dataOutputRefs>
            </bpmn2:outputSet>
            <bpmn2:signalEventDefinition id="yes"/>
            <bpmn2:eventDefinitionRef>yes</bpmn2:eventDefinitionRef>
          </bpmn2:intermediateCatchEvent>
          <bpmn2:intermediateCatchEvent id="IntermediateCatchEvent_2" name="event2">
            <bpmn2:incoming>SequenceFlow_8</bpmn2:incoming>
            <bpmn2:outgoing>SequenceFlow_12</bpmn2:outgoing>
            <bpmn2:dataOutput id="DataOutput_4" name="event2"/>
            <bpmn2:dataOutputAssociation id="DataOutputAssociation_2">
              <bpmn2:sourceRef>DataOutput_4</bpmn2:sourceRef>
              <bpmn2:targetRef>x</bpmn2:targetRef>
            </bpmn2:dataOutputAssociation>
            <bpmn2:outputSet id="OutputSet_3" name="OutputSet_3">
              <bpmn2:dataOutputRefs>DataOutput_4</bpmn2:dataOutputRefs>
            </bpmn2:outputSet>
            <bpmn2:signalEventDefinition id="no"/>
            <bpmn2:eventDefinitionRef>no</bpmn2:eventDefinitionRef>
          </bpmn2:intermediateCatchEvent>
          <bpmn2:sequenceFlow id="SequenceFlow_6" name="" sourceRef="splitGateWay" targetRef="IntermediateCatchEvent_1"/>
          <bpmn2:sequenceFlow id="SequenceFlow_8" name="" sourceRef="splitGateWay" targetRef="IntermediateCatchEvent_2"/>
          <bpmn2:scriptTask id="ScriptTask_2" name="Script Task">
            <bpmn2:incoming>SequenceFlow_12</bpmn2:incoming>
            <bpmn2:outgoing>SequenceFlow_16</bpmn2:outgoing>
            <bpmn2:script>System.out.println(&quot;Executing No&quot;);</bpmn2:script>
          </bpmn2:scriptTask>
          <bpmn2:sequenceFlow id="SequenceFlow_10" name="" sourceRef="IntermediateCatchEvent_1" targetRef="ScriptTask_1"/>
          <bpmn2:sequenceFlow id="SequenceFlow_12" name="" sourceRef="IntermediateCatchEvent_2" targetRef="ScriptTask_2"/>
          <bpmn2:scriptTask id="ScriptTask_1" name="Script Task">
            <bpmn2:incoming>SequenceFlow_10</bpmn2:incoming>
            <bpmn2:outgoing>SequenceFlow_14</bpmn2:outgoing>
            <bpmn2:script>System.out.println(&quot;Executing Yes&quot;);</bpmn2:script>
          </bpmn2:scriptTask>
          <bpmn2:exclusiveGateway id="ExclusiveGateway_1" name="join" gatewayDirection="Converging">
            <bpmn2:incoming>SequenceFlow_14</bpmn2:incoming>
            <bpmn2:incoming>SequenceFlow_16</bpmn2:incoming>
            <bpmn2:outgoing>SequenceFlow_2</bpmn2:outgoing>
          </bpmn2:exclusiveGateway>
          <bpmn2:sequenceFlow id="SequenceFlow_14" name="" sourceRef="ScriptTask_1" targetRef="ExclusiveGateway_1"/>
          <bpmn2:sequenceFlow id="SequenceFlow_16" name="" sourceRef="ScriptTask_2" targetRef="ExclusiveGateway_1"/>
          <bpmn2:task id="Task_1" name="endNotifyEmail">
            <bpmn2:incoming>SequenceFlow_2</bpmn2:incoming>
            <bpmn2:outgoing>SequenceFlow_4</bpmn2:outgoing>
            <bpmn2:ioSpecification id="InputOutputSpecification_1">
              <bpmn2:inputSet id="InputSet_1"/>
              <bpmn2:outputSet id="OutputSet_1"/>
            </bpmn2:ioSpecification>
          </bpmn2:task>
          <bpmn2:sequenceFlow id="SequenceFlow_2" name="" sourceRef="ExclusiveGateway_1" targetRef="Task_1"/>
          <bpmn2:endEvent id="EndEvent_1" name="End">
            <bpmn2:incoming>SequenceFlow_4</bpmn2:incoming>
            <bpmn2:terminateEventDefinition id="_BZwq0DwmEeGrPbDi5iXl5A"/>
          </bpmn2:endEvent>
          <bpmn2:sequenceFlow id="SequenceFlow_4" name="" sourceRef="Task_1" targetRef="EndEvent_1"/>
          <bpmn2:property id="x"/>
        </bpmn2:process>
        <bpmn2:collaboration id="Collaboration_1">
          <bpmn2:participant id="Participant_1" name="Internal" processRef="com.sample.test"/>
        </bpmn2:collaboration>
        <bpmn2:itemDefinition id="_xItem"/>
        <bpmndi:BPMNDiagram id="_Z3544DwfEeGrPbDi5iXl5A">
          <bpmndi:BPMNPlane id="_Z3544TwfEeGrPbDi5iXl5A" bpmnElement="com.sample.test">
            <bpmndi:BPMNShape id="BPMNShape_StartEvent_1" bpmnElement="startEvent">
              <dc:Bounds height="51.0" width="36.0" x="70.0" y="135.0"/>
            </bpmndi:BPMNShape>
            <bpmndi:BPMNShape id="BPMNShape_Task_2" bpmnElement="startNotifyEmail">
              <dc:Bounds height="51.0" width="111.0" x="160.0" y="127.0"/>
            </bpmndi:BPMNShape>
            <bpmndi:BPMNShape id="BPMNShape_EventBasedGateway_1" bpmnElement="splitGateWay">
              <dc:Bounds height="65.0" width="50.0" x="380.0" y="127.0"/>
            </bpmndi:BPMNShape>
            <bpmndi:BPMNShape id="BPMNShape_IntermediateCatchEvent_1" bpmnElement="IntermediateCatchEvent_1">
              <dc:Bounds height="51.0" width="36.0" x="470.0" y="100.0"/>
            </bpmndi:BPMNShape>
            <bpmndi:BPMNShape id="BPMNShape_IntermediateCatchEvent_2" bpmnElement="IntermediateCatchEvent_2">
              <dc:Bounds height="51.0" width="36.0" x="470.0" y="156.0"/>
            </bpmndi:BPMNShape>
            <bpmndi:BPMNShape id="BPMNShape_ScriptTask_1" bpmnElement="ScriptTask_1">
              <dc:Bounds height="46.0" width="111.0" x="560.0" y="95.0"/>
            </bpmndi:BPMNShape>
            <bpmndi:BPMNShape id="BPMNShape_ScriptTask_2" bpmnElement="ScriptTask_2">
              <dc:Bounds height="47.0" width="111.0" x="560.0" y="152.0"/>
            </bpmndi:BPMNShape>
            <bpmndi:BPMNShape id="BPMNShape_ExclusiveGateway_1" bpmnElement="ExclusiveGateway_1">
              <dc:Bounds height="65.0" width="50.0" x="700.0" y="127.0"/>
            </bpmndi:BPMNShape>
            <bpmndi:BPMNShape id="BPMNShape_Task_1" bpmnElement="Task_1">
              <dc:Bounds height="43.0" width="101.0" x="780.0" y="131.0"/>
            </bpmndi:BPMNShape>
            <bpmndi:BPMNShape id="BPMNShape_EndEvent_1" bpmnElement="EndEvent_1">
              <dc:Bounds height="51.0" width="36.0" x="910.0" y="130.0"/>
            </bpmndi:BPMNShape>
            <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_1" bpmnElement="startFlow" sourceElement="BPMNShape_StartEvent_1" targetElement="BPMNShape_Task_2">
              <di:waypoint xsi:type="dc:Point" x="106.0" y="153.0"/>
              <di:waypoint xsi:type="dc:Point" x="160.0" y="152.0"/>
            </bpmndi:BPMNEdge>
            <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_2" bpmnElement="processSplitInFlow" sourceElement="BPMNShape_Task_2" targetElement="BPMNShape_EventBasedGateway_1">
              <di:waypoint xsi:type="dc:Point" x="271.0" y="152.0"/>
              <di:waypoint xsi:type="dc:Point" x="380.0" y="152.0"/>
            </bpmndi:BPMNEdge>
            <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_3" bpmnElement="SequenceFlow_6" sourceElement="BPMNShape_EventBasedGateway_1" targetElement="BPMNShape_IntermediateCatchEvent_1">
              <di:waypoint xsi:type="dc:Point" x="431.0" y="152.0"/>
              <di:waypoint xsi:type="dc:Point" x="470.0" y="118.0"/>
            </bpmndi:BPMNEdge>
            <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_4" bpmnElement="SequenceFlow_8" sourceElement="BPMNShape_EventBasedGateway_1" targetElement="BPMNShape_IntermediateCatchEvent_2">
              <di:waypoint xsi:type="dc:Point" x="431.0" y="152.0"/>
              <di:waypoint xsi:type="dc:Point" x="470.0" y="174.0"/>
            </bpmndi:BPMNEdge>
            <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_5" bpmnElement="SequenceFlow_10" sourceElement="BPMNShape_IntermediateCatchEvent_1" targetElement="BPMNShape_ScriptTask_1">
              <di:waypoint xsi:type="dc:Point" x="506.0" y="118.0"/>
              <di:waypoint xsi:type="dc:Point" x="560.0" y="118.0"/>
            </bpmndi:BPMNEdge>
            <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_6" bpmnElement="SequenceFlow_12" sourceElement="BPMNShape_IntermediateCatchEvent_2" targetElement="BPMNShape_ScriptTask_2">
              <di:waypoint xsi:type="dc:Point" x="506.0" y="174.0"/>
              <di:waypoint xsi:type="dc:Point" x="560.0" y="175.0"/>
            </bpmndi:BPMNEdge>
            <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_7" bpmnElement="SequenceFlow_14" sourceElement="BPMNShape_ScriptTask_1" targetElement="BPMNShape_ExclusiveGateway_1">
              <di:waypoint xsi:type="dc:Point" x="671.0" y="118.0"/>
              <di:waypoint xsi:type="dc:Point" x="700.0" y="152.0"/>
            </bpmndi:BPMNEdge>
            <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_8" bpmnElement="SequenceFlow_16" sourceElement="BPMNShape_ScriptTask_2" targetElement="BPMNShape_ExclusiveGateway_1">
              <di:waypoint xsi:type="dc:Point" x="671.0" y="175.0"/>
              <di:waypoint xsi:type="dc:Point" x="700.0" y="152.0"/>
            </bpmndi:BPMNEdge>
            <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_9" bpmnElement="SequenceFlow_2" sourceElement="BPMNShape_ExclusiveGateway_1" targetElement="BPMNShape_Task_1">
              <di:waypoint xsi:type="dc:Point" x="751.0" y="152.0"/>
              <di:waypoint xsi:type="dc:Point" x="780.0" y="152.0"/>
            </bpmndi:BPMNEdge>
            <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_10" bpmnElement="SequenceFlow_4" sourceElement="BPMNShape_Task_1" targetElement="BPMNShape_EndEvent_1">
              <di:waypoint xsi:type="dc:Point" x="881.0" y="152.0"/>
              <di:waypoint xsi:type="dc:Point" x="910.0" y="148.0"/>
            </bpmndi:BPMNEdge>
          </bpmndi:BPMNPlane>
        </bpmndi:BPMNDiagram>
      </bpmn2:definitions>
      
      

       

      And got below logs:

       

      (null: 2, 350): cvc-elt.1: Cannot find the declaration of element 'bpmn2:definitions'.
      (null: 124, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 125, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 128, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 129, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 132, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 133, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 136, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 137, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 140, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 141, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 144, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 145, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 148, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 149, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 152, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 153, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 156, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 157, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 160, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      (null: 161, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.
      [-1,-1]: Process 'Test' [com.sample.test]: Event node 'event' [4] should specify an event type
      [-1,-1]: Process 'Test' [com.sample.test]: Event node 'event2' [5] should specify an event type
      Exception in thread "main" java.lang.IllegalArgumentException: Could not parse knowledge.
       at org.drools.builder.impl.KnowledgeBuilderImpl.newKnowledgeBase(KnowledgeBuilderImpl.java:67)
       at com.test.workflow.BPMN2Test.main(BPMN2Test.java:17)
      
      

       

      For the message: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'. It's mentioned in the https://issues.jboss.org/browse/JBPM-3143.

       

      For

      [-1,-1]: Process 'Test' [com.sample.test]: Event node 'event' [4] should specify an event type

      [-1,-1]: Process 'Test' [com.sample.test]: Event node 'event2' [5] should specify an event type

      Exception in thread "main" java.lang.IllegalArgumentException: Could not parse knowledge.

      at org.drools.builder.impl.KnowledgeBuilderImpl.newKnowledgeBase(KnowledgeBuilderImpl.java:67)

      at com.test.workflow.BPMN2Test.main(BPMN2Test.java:17)

       

      where should i specify the event type?

       

      Thanks very much.

       

      forgive me for my bad english.