8:44 a.m.
Rudi Fisher [https://community.jboss.org/people/rudi_fisher] created the discussion
"signal event doesn't work from REST API"
To view the discussion, visit: https://community.jboss.org/message/649256#649256
--------------------------------------------------------------
I want to use REST API to call signal. There is some implementation in ProcessMgmtFacade
of gwt-console-server for this. I see the source code and I finelly found this in
CommandDelegate of jbpm-gwt-core:
public void signalExecution(String executionId, String signal) {
ksession.getProcessInstance(new Long(executionId)).signalEvent("signal",
signal);
}
This doesn't fulfil my requirements so I made changes to this class recompile and
redeploy. This step is OK, because I made some other changes about this REST API (start
process with params) and everythings work fins, so I think the problem is not in this my
changed implementation of CommandDelegate. New implementation is:
public void signalExecution(String executionId, String eventType, String eventValue) {
ksession.getProcessInstance(new Long(executionId)).signalEvent(eventType, eventValue);
}
I took example of signal event from original examples to be sure that process is designed
OK. I took BPMN2-EventBasedSplit.bpmn2. I tested in Eclipse and works fine - after signal
call, process cointinued and finally finished. I deployed this process into my Guvnor repo
and started by GWT console. Process stopped and waits at signal nodes (see attached
picture).
https://community.jboss.org/servlet/JiveServlet/showImage/2-649256-17846/...
https://community.jboss.org/servlet/JiveServlet/downloadImage/2-649256-17...
At this point I wanted to push process by send signal event by REST API with new
implementation. Method signalExecution in CommandDelegate is called OK and this method
take correct process instance (I have log line there to see process instance). But it
seems signalEvent on process instance doesn't work. I'm using the same parameters
for signal event in Eclipse and in CommandDelegate. I'm confused about what is
different between execution in unit test in Eclipse and at server. I made many tests and
examples but my probem has no solution to this day. I found some discussion about similar
issues but this not solve this problem.
Working unit test in Eclipse
public static final void main(String[] args) throws Exception {
// load up the knowledge base
KnowledgeBase kbase = readKnowledgeBase();
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ProcessInstance processInstance = ksession.startProcess("com.sample.test");
System.out.println("process instance:" + processInstance.getState());
ksession.signalEvent("Yes", "YesValue", processInstance.getId());
System.out.println("process instance:" +
ksession.getProcessInstance(processInstance.getId()));
// NO
processInstance = ksession.startProcess("com.sample.test");
System.out.println("process instance:" + processInstance.getState());
//ksession = restoreSession(ksession, true);
ksession.signalEvent("No", "NoValue", processInstance.getId());
System.out.println("process instance:" +
ksession.getProcessInstance(processInstance.getId()));
}
private static KnowledgeBase readKnowledgeBase() throws Exception {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource("BPMN2-EventBasedSplit.bpmn2"),
ResourceType.BPMN2);
return kbuilder.newKnowledgeBase();
}
Not working code in CommandDelegate and calling at GWT server
ksession.getProcessInstance(new Long(executionId)).signalEvent("Yes",
"YesValue");
For BPMN2-EventBasedSplit.bpmn2 see official examples in version 5.2.0 Final
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9:20 a.m.
New subject: [jBPM] - Re: signal event doesn't work from REST API
Tihomir Surdilovic [https://community.jboss.org/people/tsurdilovic] created the
discussion
"Re: signal event doesn't work from REST API"
To view the discussion, visit: https://community.jboss.org/message/649259#649259
--------------------------------------------------------------
Two things:
a) Post your process BPMN2 from the Web Designer (BPMN2 button in the footer section)
b) Try upgrading to the latest designer (
http://people.redhat.com/tsurdilo/designer/master
http://people.redhat.com/tsurdilo/designer/master) which includes some fixes to the
generated BPMN2 of Signal Events and test again. If this still causes issues, then we can
look at a possible CommandDelegate problem I think.
Hope this helps.
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6:59 a.m.
New subject: [jBPM] - Re: signal event doesn't work from REST API
Rudi Fisher [https://community.jboss.org/people/rudi_fisher] created the discussion
"Re: signal event doesn't work from REST API"
To view the discussion, visit: https://community.jboss.org/message/649301#649301
--------------------------------------------------------------
*Thank you Tihomir and Maciej, now it works work me.* Correct solution was to take the
latest version od designer ( http://people.redhat.com/tsurdilo/designer/master
http://people.redhat.com/tsurdilo/designer/master)
Tihomir, I was already using designer from this master repository but my version was from
13.1.2012 (from maven pom) and after your post I saw there is a new version from
27.1.2012. I took it and start my tests from zero (new deployment of process from eclipse
to guvnor repo) and after retest everything is working. It seems this last version fix
some problem about signals as you wrote (at least in BPMN export I see differences in
value of element signalRef). Thanks.
Maciej, after retest all forms of calling signal is working from Eclipse and also at
server (from CommandDelegate class):
ksession.getProcessInstance(new Long(executionId)).signalEvent("Yes",
"YesValue");
ksession.signalEvent("Yes", "YesValue", new Long(executionId));
ksession.signalEvent("Yes", "YesValue");
I'm attaching current BPMN export of correct process from designer, maybe this helps
someone.
<?xml version="1.0" encoding="UTF-8"?>
<bpmn2:definitions xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance
http://www.w3.org/2001/XMLSchema-instance" xmlns=" http://www.omg.org/bpmn20
http://www.omg.org/bpmn20" xmlns:bpmn2="
http://www.omg.org/spec/BPMN/20100524/MODEL
http://www.omg.org/spec/BPMN/20100524/MODEL" 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:drools=" http://www.jboss.org/drools http://www.jboss.org/drools"
id="_MVI7QUp0EeGJ6vd3uFYRmQ" xsi:schemaLocation="
http://www.omg.org/spec/BPMN/20100524/MODEL http://www.omg.org/spec/BPMN/20100524/MODEL
BPMN20.xsd" expressionLanguage=" http://www.mvel.org/2.0
http://www.mvel.org/2.0" targetNamespace=" http://www.omg.org/bpmn20
http://www.omg.org/bpmn20" typeLanguage=" http://www.java.com/javaTypes
http://www.java.com/javaTypes">
<bpmn2:itemDefinition id="_xItem"/>
<bpmn2:process id="com.sample.test" drools:packageName="demo"
name="Test" isExecutable="true">
<bpmn2:property id="x" itemSubjectRef="_xItem"/>
<bpmn2:startEvent id="_1" name="Start">
<bpmn2:outgoing>_1-_11</bpmn2:outgoing>
</bpmn2:startEvent>
<bpmn2:eventBasedGateway id="_2" name="Split"
gatewayDirection="Diverging">
<bpmn2:incoming>_11-_2</bpmn2:incoming>
<bpmn2:outgoing>_2-_3</bpmn2:outgoing>
<bpmn2:outgoing>_2-_4</bpmn2:outgoing>
</bpmn2:eventBasedGateway>
<bpmn2:intermediateCatchEvent id="_3" drools:boundaryca="false"
name="event">
<bpmn2:incoming>_2-_3</bpmn2:incoming>
<bpmn2:outgoing>_3-_9</bpmn2:outgoing>
<bpmn2:dataOutput id="_3_event" name="event"/>
<bpmn2:dataOutputAssociation id="_MVI7Q0p0EeGJ6vd3uFYRmQ">
<bpmn2:sourceRef>_3_event</bpmn2:sourceRef>
<bpmn2:targetRef>x</bpmn2:targetRef>
</bpmn2:dataOutputAssociation>
<bpmn2:outputSet id="_MVI7Qkp0EeGJ6vd3uFYRmQ">
<bpmn2:dataOutputRefs>_3_event</bpmn2:dataOutputRefs>
</bpmn2:outputSet>
<bpmn2:signalEventDefinition id="_MVI7REp0EeGJ6vd3uFYRmQ"
signalRef="Yes"/>
</bpmn2:intermediateCatchEvent>
<bpmn2:intermediateCatchEvent id="_4" drools:boundaryca="false"
name="event">
<bpmn2:incoming>_2-_4</bpmn2:incoming>
<bpmn2:outgoing>_4-_10</bpmn2:outgoing>
<bpmn2:dataOutput id="_4_event" name="event"/>
<bpmn2:dataOutputAssociation id="_MVI7Rkp0EeGJ6vd3uFYRmQ">
<bpmn2:sourceRef>_4_event</bpmn2:sourceRef>
<bpmn2:targetRef>x</bpmn2:targetRef>
</bpmn2:dataOutputAssociation>
<bpmn2:outputSet id="_MVI7RUp0EeGJ6vd3uFYRmQ">
<bpmn2:dataOutputRefs>_4_event</bpmn2:dataOutputRefs>
</bpmn2:outputSet>
<bpmn2:signalEventDefinition id="_MVI7R0p0EeGJ6vd3uFYRmQ"
signalRef="No"/>
</bpmn2:intermediateCatchEvent>
<bpmn2:exclusiveGateway id="_5" drools:dg=""
name="Join" gatewayDirection="Converging">
<bpmn2:incoming>_10-_5</bpmn2:incoming>
<bpmn2:incoming>_9-_5</bpmn2:incoming>
<bpmn2:outgoing>_5-_6</bpmn2:outgoing>
</bpmn2:exclusiveGateway>
<bpmn2:scriptTask id="_6" name="Script" scriptFormat="
http://www.java.com/java http://www.java.com/java">
<bpmn2:incoming>_5-_6</bpmn2:incoming>
<bpmn2:outgoing>_6-_8</bpmn2:outgoing>
<bpmn2:script>System.out.println("x=" + x);</bpmn2:script>
</bpmn2:scriptTask>
<bpmn2:endEvent id="_8" name="End">
<bpmn2:incoming>_6-_8</bpmn2:incoming>
<bpmn2:terminateEventDefinition id="_MVI7SEp0EeGJ6vd3uFYRmQ"/>
</bpmn2:endEvent>
<bpmn2:scriptTask id="_9" name="Script" scriptFormat="
http://www.java.com/java http://www.java.com/java">
<bpmn2:incoming>_3-_9</bpmn2:incoming>
<bpmn2:outgoing>_9-_5</bpmn2:outgoing>
<bpmn2:script>System.out.println("Executing
Yes");</bpmn2:script>
</bpmn2:scriptTask>
<bpmn2:scriptTask id="_10" name="Script" scriptFormat="
http://www.java.com/java http://www.java.com/java">
<bpmn2:incoming>_4-_10</bpmn2:incoming>
<bpmn2:outgoing>_10-_5</bpmn2:outgoing>
<bpmn2:script>System.out.println("Executing
No");</bpmn2:script>
</bpmn2:scriptTask>
<bpmn2:scriptTask id="_11" name="Script" scriptFormat="
http://www.java.com/java http://www.java.com/java">
<bpmn2:incoming>_1-_11</bpmn2:incoming>
<bpmn2:outgoing>_11-_2</bpmn2:outgoing>
<bpmn2:script>System.out.println("Executing
starts.");</bpmn2:script>
</bpmn2:scriptTask>
<bpmn2:sequenceFlow id="_11-_2" sourceRef="_11"
targetRef="_2"/>
<bpmn2:sequenceFlow id="_2-_3" sourceRef="_2"
targetRef="_3"/>
<bpmn2:sequenceFlow id="_2-_4" sourceRef="_2"
targetRef="_4"/>
<bpmn2:sequenceFlow id="_9-_5" sourceRef="_9"
targetRef="_5"/>
<bpmn2:sequenceFlow id="_10-_5" sourceRef="_10"
targetRef="_5"/>
<bpmn2:sequenceFlow id="_5-_6" sourceRef="_5"
targetRef="_6"/>
<bpmn2:sequenceFlow id="_6-_8" sourceRef="_6"
targetRef="_8"/>
<bpmn2:sequenceFlow id="_3-_9" sourceRef="_3"
targetRef="_9"/>
<bpmn2:sequenceFlow id="_4-_10" sourceRef="_4"
targetRef="_10"/>
<bpmn2:sequenceFlow id="_1-_11" sourceRef="_1"
targetRef="_11"/>
</bpmn2:process>
<bpmndi:BPMNDiagram id="_MVI7SUp0EeGJ6vd3uFYRmQ">
<bpmndi:BPMNPlane id="_MVI7Skp0EeGJ6vd3uFYRmQ"
bpmnElement="com.sample.test">
<bpmndi:BPMNShape id="_MVI7S0p0EeGJ6vd3uFYRmQ"
bpmnElement="_1">
<dc:Bounds height="30.0" width="30.0" x="25.0"
y="65.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_MVI7TEp0EeGJ6vd3uFYRmQ"
bpmnElement="_2">
<dc:Bounds height="40.0" width="40.0" x="232.0"
y="60.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_MVI7TUp0EeGJ6vd3uFYRmQ"
bpmnElement="_3">
<dc:Bounds height="30.0" width="30.0" x="318.0"
y="25.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_MVI7Tkp0EeGJ6vd3uFYRmQ"
bpmnElement="_4">
<dc:Bounds height="30.0" width="30.0" x="318.0"
y="105.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_MVI7T0p0EeGJ6vd3uFYRmQ"
bpmnElement="_5">
<dc:Bounds height="40.0" width="40.0" x="505.0"
y="60.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_MVI7UEp0EeGJ6vd3uFYRmQ"
bpmnElement="_6">
<dc:Bounds height="48.0" width="80.0" x="582.0"
y="56.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_MVI7UUp0EeGJ6vd3uFYRmQ"
bpmnElement="_8">
<dc:Bounds height="28.0" width="28.0" x="835.0"
y="65.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_MVI7Ukp0EeGJ6vd3uFYRmQ"
bpmnElement="_9">
<dc:Bounds height="48.0" width="80.0" x="389.0"
y="16.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_MVI7U0p0EeGJ6vd3uFYRmQ"
bpmnElement="_10">
<dc:Bounds height="48.0" width="80.0" x="389.0"
y="96.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_MVI7VEp0EeGJ6vd3uFYRmQ"
bpmnElement="_11">
<dc:Bounds height="48.0" width="80.0" x="102.0"
y="57.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNEdge id="_MVI7VUp0EeGJ6vd3uFYRmQ"
bpmnElement="_11-_2">
<di:waypoint xsi:type="dc:Point" x="142.0"
y="81.0"/>
<di:waypoint xsi:type="dc:Point" x="252.0"
y="80.0"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="_MVI7Vkp0EeGJ6vd3uFYRmQ"
bpmnElement="_2-_3">
<di:waypoint xsi:type="dc:Point" x="252.0"
y="80.0"/>
<di:waypoint xsi:type="dc:Point" x="333.0"
y="40.0"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="_MVI7V0p0EeGJ6vd3uFYRmQ"
bpmnElement="_2-_4">
<di:waypoint xsi:type="dc:Point" x="252.0"
y="80.0"/>
<di:waypoint xsi:type="dc:Point" x="333.0"
y="120.0"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="_MVI7WEp0EeGJ6vd3uFYRmQ"
bpmnElement="_9-_5">
<di:waypoint xsi:type="dc:Point" x="429.0"
y="40.0"/>
<di:waypoint xsi:type="dc:Point" x="525.0"
y="80.0"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="_MVI7WUp0EeGJ6vd3uFYRmQ"
bpmnElement="_10-_5">
<di:waypoint xsi:type="dc:Point" x="429.0"
y="120.0"/>
<di:waypoint xsi:type="dc:Point" x="525.0"
y="80.0"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="_MVI7Wkp0EeGJ6vd3uFYRmQ"
bpmnElement="_5-_6">
<di:waypoint xsi:type="dc:Point" x="525.0"
y="80.0"/>
<di:waypoint xsi:type="dc:Point" x="622.0"
y="80.0"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="_MVI7W0p0EeGJ6vd3uFYRmQ"
bpmnElement="_6-_8">
<di:waypoint xsi:type="dc:Point" x="622.0"
y="80.0"/>
<di:waypoint xsi:type="dc:Point" x="849.0"
y="79.0"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="_MVI7XEp0EeGJ6vd3uFYRmQ"
bpmnElement="_3-_9">
<di:waypoint xsi:type="dc:Point" x="333.0"
y="40.0"/>
<di:waypoint xsi:type="dc:Point" x="429.0"
y="40.0"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="_MVI7XUp0EeGJ6vd3uFYRmQ"
bpmnElement="_4-_10">
<di:waypoint xsi:type="dc:Point" x="333.0"
y="120.0"/>
<di:waypoint xsi:type="dc:Point" x="429.0"
y="120.0"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="_MVI7Xkp0EeGJ6vd3uFYRmQ"
bpmnElement="_1-_11">
<di:waypoint xsi:type="dc:Point" x="40.0"
y="80.0"/>
<di:waypoint xsi:type="dc:Point" x="142.0"
y="81.0"/>
</bpmndi:BPMNEdge>
</bpmndi:BPMNPlane>
</bpmndi:BPMNDiagram>
</bpmn2:definitions>
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11:45 a.m.
New subject: [jBPM] - Re: signal event doesn't work from REST API
Tihomir Surdilovic [https://community.jboss.org/people/tsurdilovic] created the
discussion
"Re: signal event doesn't work from REST API"
To view the discussion, visit: https://community.jboss.org/message/649314#649314
--------------------------------------------------------------
Yes, until we release Designer version 2.1 I will update the wars on
people.redhat.com/tsurdilo/designer/master after every bigger fix, so you have to watch
the timestamps to see if updates happened. Once we release the official 2.1 version it
will be available on sourceforge as always.
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4:21 a.m.
New subject: [jBPM] - Re: signal event doesn't work from REST API
shashikala gonchigar [https://community.jboss.org/people/shashikalagt] created the
discussion
"Re: signal event doesn't work from REST API"
To view the discussion, visit: https://community.jboss.org/message/764526#764526
--------------------------------------------------------------
can you tell me how to invoke signal from REST API, please its urgent
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1:06 p.m.
New subject: [jBPM] - Re: signal event doesn't work from REST API
Maciej Swiderski [https://community.jboss.org/people/swiderski.maciej] created the
discussion
"Re: signal event doesn't work from REST API"
To view the discussion, visit: https://community.jboss.org/message/649268#649268
--------------------------------------------------------------
Difference is that in your unit test you call session.signalEvent and in console
signalEvent is done on process instance instead. So that would be why unit test work and
in console it does not. I would give a try to change unit test to use process instance
signalEvent to keep it consistent. Let us know if that works, as Tihomir said then we
could try to look at CommandDelegate if there is anything that could cause any issues.
HTH
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4458
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5 comments
4 participants
participants (4)
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Maciej Swiderski -
Rudi Fisher
-
shashikala gonchigar
-
Tihomir Surdilovic