noon
byungwoojun [http://community.jboss.org/people/byungwoojun] created the discussion
"Re: jBPM 5 Loop Type support?"
To view the discussion, visit: http://community.jboss.org/message/590151#590151
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First of all, thank you very much for your reply! After your reply (thanks for the
inspiration), I modifed my bpmn file, replacing the first converging parallel gateway with
the converging "exclusive" gateway. See the attached bpmn file. After the
changing, the loop worked! So, the process has the converging exclusive gateway followed
by the diverging exclusive gateway. Now, I think it is obvious.
BTW, do have a suggestion for my question #1 (Subprocess looptype attribute from the
Eclipse BPMN 2 Process Editor)?
Thanks,
bwj
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processTest2.java
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseFactory;
import org.drools.builder.KnowledgeBuilder;
import org.drools.builder.KnowledgeBuilderFactory;
import org.drools.builder.ResourceType;
import org.drools.compiler.BPMN2ProcessFactory;
import org.drools.compiler.ProcessBuilderFactory;
import org.drools.impl.EnvironmentFactory;
import org.drools.io.ResourceFactory;
import org.drools.logger.KnowledgeRuntimeLogger;
import org.drools.logger.KnowledgeRuntimeLoggerFactory;
import org.drools.marshalling.impl.ProcessMarshallerFactory;
import org.drools.runtime.KnowledgeSessionConfiguration;
import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.runtime.process.ProcessRuntimeFactory;
import org.jbpm.bpmn2.BPMN2ProcessProviderImpl;
import org.jbpm.marshalling.impl.ProcessMarshallerFactoryServiceImpl;
import org.jbpm.process.builder.ProcessBuilderFactoryServiceImpl;
import org.jbpm.process.instance.ProcessRuntimeFactoryServiceImpl;
import org.jbpm.process.workitem.wsht.WSHumanTaskHandler;
/**
* This is a sample file to launch a process.
*/
public class ProcessTest2 {
public static final void main(String[] args) {
try {
// load up the knowledge base
KnowledgeBase kbase = readKnowledgeBase();
StatefulKnowledgeSession ksession = createSession(kbase);
KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newFileLogger(ksession,
"test");
// start a new process instance
Map<String, Object> params = new HashMap<String, Object>();
params.put("count", 1);
ksession.startProcess("looptest777", params);
logger.close();
} catch (Throwable t) {
t.printStackTrace();
}
}
private static KnowledgeBase readKnowledgeBase() throws Exception {
ProcessBuilderFactory.setProcessBuilderFactoryService(new
ProcessBuilderFactoryServiceImpl());
ProcessMarshallerFactory.setProcessMarshallerFactoryService(new
ProcessMarshallerFactoryServiceImpl());
ProcessRuntimeFactory.setProcessRuntimeFactoryService(new
ProcessRuntimeFactoryServiceImpl());
BPMN2ProcessFactory.setBPMN2ProcessProvider(new BPMN2ProcessProviderImpl());
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource("looptest777.bpmn"),
ResourceType.BPMN2);
return kbuilder.newKnowledgeBase();
}
private static StatefulKnowledgeSession createSession(KnowledgeBase kbase) {
Properties properties = new Properties();
properties.put("drools.processInstanceManagerFactory",
"org.jbpm.process.instance.impl.DefaultProcessInstanceManagerFactory");
properties.put("drools.processSignalManagerFactory",
"org.jbpm.process.instance.event.DefaultSignalManagerFactory");
KnowledgeSessionConfiguration config =
KnowledgeBaseFactory.newKnowledgeSessionConfiguration(properties);
return kbase.newStatefulKnowledgeSession(config, EnvironmentFactory.newEnvironment());
}
}
looptest777.bpmn
================
<?xml version="1.0" encoding="UTF-8"?>
<definitions id="Definition"
targetNamespace=" http://www.jboss.org/drools http://www.jboss.org/drools"
typeLanguage=" http://www.java.com/javaTypes http://www.java.com/javaTypes"
expressionLanguage=" http://www.mvel.org/2.0 http://www.mvel.org/2.0"
xmlns=" http://www.omg.org/spec/BPMN/20100524/MODEL
http://www.omg.org/spec/BPMN/20100524/MODEL"
xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance
http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=" http://www.omg.org/spec/BPMN/20100524/MODEL
http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd"
xmlns:g=" http://www.jboss.org/drools/flow/gpd
http://www.jboss.org/drools/flow/gpd"
xmlns:bpmndi=" http://www.omg.org/spec/BPMN/20100524/DI
http://www.omg.org/spec/BPMN/20100524/DI"
xmlns:dc=" http://www.omg.org/spec/DD/20100524/DC
http://www.omg.org/spec/DD/20100524/DC"
xmlns:di=" http://www.omg.org/spec/DD/20100524/DI
http://www.omg.org/spec/DD/20100524/DI"
xmlns:tns=" http://www.jboss.org/drools http://www.jboss.org/drools">
<itemDefinition id="_countItem" structureRef="Integer" />
<process processType="Private" isExecutable="true"
id="looptest777" name="looptest777.b" >
<!-- process variables -->
<property id="count" itemSubjectRef="_countItem"/>
<!-- nodes -->
<startEvent id="_1" name="Start" />
<scriptTask id="_2" name="Hello" >
<script>System.out.println("Hello");
</script>
</scriptTask>
<scriptTask id="_4" name="Hello Again" >
<script>System.out.println("Hello Again");</script>
</scriptTask>
<exclusiveGateway id="_5" name="Gateway"
gatewayDirection="Diverging" />
<endEvent id="_6" name="End" >
<terminateEventDefinition/>
</endEvent>
<scriptTask id="_7" name="Hello Back" >
<script>System.out.println("Hello back");
count += 1;
System.out.println("count: " + count);
kcontext.setVariable("count", count);
</script>
</scriptTask>
<scriptTask id="_8" name="Hello Post" >
<script>System.out.println("Hello Post");</script>
</scriptTask>
<exclusiveGateway id="_10" name="Gateway"
gatewayDirection="Converging" />
<!-- connections -->
<sequenceFlow id="_1-_2" sourceRef="_1" targetRef="_2"
/>
<sequenceFlow id="_10-_4" sourceRef="_10" targetRef="_4"
/>
<sequenceFlow id="_4-_5" sourceRef="_4" targetRef="_5"
/>
<sequenceFlow id="_8-_6" sourceRef="_8" targetRef="_6"
/>
<sequenceFlow id="_5-_7" sourceRef="_5" targetRef="_7"
name="loop back" >
<conditionExpression xsi:type="tFormalExpression" >return count <
3;</conditionExpression>
</sequenceFlow>
<sequenceFlow id="_5-_8" sourceRef="_5" targetRef="_8"
name="otherwise" >
<conditionExpression xsi:type="tFormalExpression" language="
http://www.jboss.org/drools/rule http://www.jboss.org/drools/rule"
>eval(true)</conditionExpression>
</sequenceFlow>
<sequenceFlow id="_2-_10" sourceRef="_2" targetRef="_10"
/>
<sequenceFlow id="_7-_10" sourceRef="_7" targetRef="_10"
/>
</process>
<bpmndi:BPMNDiagram>
<bpmndi:BPMNPlane bpmnElement="looptest777" >
<bpmndi:BPMNShape bpmnElement="_1" >
<dc:Bounds x="27" y="150" width="48"
height="48" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="_2" >
<dc:Bounds x="95" y="152" width="80"
height="48" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="_4" >
<dc:Bounds x="286" y="205" width="80"
height="48" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="_5" >
<dc:Bounds x="411" y="156" width="48"
height="48" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="_6" >
<dc:Bounds x="609" y="152" width="48"
height="48" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="_7" >
<dc:Bounds x="287" y="94" width="80"
height="48" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="_8" >
<dc:Bounds x="492" y="156" width="80"
height="48" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="_10" >
<dc:Bounds x="202" y="149" width="48"
height="48" />
</bpmndi:BPMNShape>
<bpmndi:BPMNEdge bpmnElement="_1-_2" >
<di:waypoint x="51" y="174" />
<di:waypoint x="135" y="176" />
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="_10-_4" >
<di:waypoint x="226" y="173" />
<di:waypoint x="326" y="229" />
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="_4-_5" >
<di:waypoint x="326" y="229" />
<di:waypoint x="435" y="180" />
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="_8-_6" >
<di:waypoint x="532" y="180" />
<di:waypoint x="633" y="176" />
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="_5-_7" >
<di:waypoint x="435" y="180" />
<di:waypoint x="327" y="118" />
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="_5-_8" >
<di:waypoint x="435" y="180" />
<di:waypoint x="532" y="180" />
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="_2-_10" >
<di:waypoint x="135" y="176" />
<di:waypoint x="226" y="173" />
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="_7-_10" >
<di:waypoint x="327" y="118" />
<di:waypoint x="226" y="173" />
</bpmndi:BPMNEdge>
</bpmndi:BPMNPlane>
</bpmndi:BPMNDiagram>
</definitions>
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