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Process with error handling

ercancelik
Champ in-the-making
Champ in-the-making

‎08-18-2014 02:23 AM

Hi all,

I want to design a basic process that sends sms to user(Indeed it is a part of a big process). If the service task that sends sms throws exception i want to try 3 times with 1 minute interval. If the sms couldn't sent i want to end process(or go to next step). I designed a process like in the attachment. But after trying to send sms twice, the process suspended and waits in dummySmsST service task.

1) In Start Event, i add an alfresco script that sets retryCount variable to zero.
    
execution.setVariable("retryCount",0);‍


2) In dummySmsST i call the service that sends sms.

3) There is a boundaryerror attached to dummySmsST.

4) When exception occurs process goes to Receive Task. In Receive Task the retry count is increased by 1.
    
execution.setVariable("retryCount",retryCount+1);‍


5) In boundaryTimer attached to Receive Task, i set the time duration to PT1M.

6) In Gateway's left flow i added a condition that checks for retryCount.
    
${retryCount<3}‍


7) In Gateway's right flow(default flow) i do nothing. It goes to endevent.

Is there any design problem or script problem. I need your suggestions.

Here is the log :

{
    "processInstanceId": "abf33136-269d-11e4-9d17-a0a8cd68a415",
    "businessKey": null,
    "processDefinitionId": "TestSMS:2:704",
    "startTime": "2014-08-18T09:05:36EEST",
    "startActivityId": "startevent1",
    "startUserId": "kermit",
    "completed": false,
    "activities": [
        {
            "activityId": "startevent1",
            "activityName": "Start",
            "activityType": "startEvent",
            "startTime": "2014-08-18T09:05:36EEST",
            "completed": true,
            "endTime": "2014-08-18T09:05:37EEST",
            "duration": 653
        },
        {
            "activityId": "dummySmsST",
            "activityName": "dummySmsST",
            "activityType": "serviceTask",
            "startTime": "2014-08-18T09:05:47EEST",
            "completed": true,
            "endTime": "2014-08-18T09:05:52EEST",
            "duration": 5129
        },
        {
            "activityId": "boundaryerror1",
            "activityName": "Error",
            "activityType": "boundaryError",
            "startTime": "2014-08-18T09:05:52EEST",
            "completed": true,
            "endTime": "2014-08-18T09:05:52EEST",
            "duration": 0
        },
        {
            "activityId": "receivetask1",
            "activityName": "Receive Task",
            "activityType": "receiveTask",
            "startTime": "2014-08-18T09:05:52EEST",
            "completed": true,
            "endTime": "2014-08-18T09:06:52EEST",
            "duration": 60043
        },
        {
            "activityId": "boundarytimer2",
            "activityName": "Timer",
            "activityType": "boundaryTimer",
            "startTime": "2014-08-18T09:06:52EEST",
            "completed": true,
            "endTime": "2014-08-18T09:06:52EEST",
            "duration": 0
        },
        {
            "activityId": "exclusivegateway1",
            "activityName": "Exclusive Gateway",
            "activityType": "exclusiveGateway",
            "startTime": "2014-08-18T09:06:52EEST",
            "completed": true,
            "endTime": "2014-08-18T09:06:52EEST",
            "duration": 6
        },
        {
            "activityId": "dummySmsST",
            "activityName": "dummySmsST",
            "activityType": "serviceTask",
            "startTime": "2014-08-18T09:06:52EEST",
            "completed": true,
            "endTime": "2014-08-18T09:06:58EEST",
            "duration": 5972
        },
        {
            "activityId": "boundaryerror1",
            "activityName": "Error",
            "activityType": "boundaryError",
            "startTime": "2014-08-18T09:06:58EEST",
            "completed": true,
            "endTime": "2014-08-18T09:06:58EEST",
            "duration": 0
        },
        {
            "activityId": "receivetask1",
            "activityName": "Receive Task",
            "activityType": "receiveTask",
            "startTime": "2014-08-18T09:06:58EEST",
            "completed": true,
            "endTime": "2014-08-18T09:07:58EEST",
            "duration": 60058
        },
        {
            "activityId": "boundarytimer2",
            "activityName": "Timer",
            "activityType": "boundaryTimer",
            "startTime": "2014-08-18T09:07:58EEST",
            "completed": true,
            "endTime": "2014-08-18T09:07:58EEST",
            "duration": 0
        },
        {
            "activityId": "exclusivegateway1",
            "activityName": "Exclusive Gateway",
            "activityType": "exclusiveGateway",
            "startTime": "2014-08-18T09:07:58EEST",
            "completed": true,
            "endTime": "2014-08-18T09:07:58EEST",
            "duration": 10
        }
    ],
    "variables": [
        {
            "variableName": "errorTaskId",
            "variableValue": "dummySmsST"
        },
        {
            "variableName": "errorTaskName",
            "variableValue": "dummySmsST"
        },
        {
            "variableName": "errorData",
            "variableValue": null
        },
        {
            "variableName": "retryCount",
            "variableValue": 2
        },
        {
            "variableName": "OrderId",
            "variableValue": "aae97bfe-590c-40ed-af6f-77906d6d4014"
        },
        {
            "variableName": "errorCode",
            "variableValue": "smsTypeNotFound"
        }
    ],
    "historyVariables": [
        {
            "variableName": "retryCount",
            "variableValue": 2,
            "variableType": "integer",
            "revision": 2,
            "time": "2014-08-18T09:06:58EEST"
        },
        {
            "variableName": "errorTaskId",
            "variableValue": "dummySmsST",
            "variableType": "string",
            "revision": 1,
            "time": "2014-08-18T09:06:58EEST"
        },
        {
            "variableName": "errorTaskName",
            "variableValue": "dummySmsST",
            "variableType": "string",
            "revision": 1,
            "time": "2014-08-18T09:06:58EEST"
        },
        {
            "variableName": "errorData",
            "variableValue": null,
            "variableType": "null",
            "revision": 1,
            "time": "2014-08-18T09:06:58EEST"
        },
        {
            "variableName": "errorCode",
            "variableValue": "smsTypeNotFound",
            "variableType": "string",
            "revision": 1,
            "time": "2014-08-18T09:06:58EEST"
        },
        {
            "variableName": "retryCount",
            "variableValue": 1,
            "variableType": "integer",
            "revision": 1,
            "time": "2014-08-18T09:05:52EEST"
        },
        {
            "variableName": "errorTaskId",
            "variableValue": "dummySmsST",
            "variableType": "string",
            "revision": 0,
            "time": "2014-08-18T09:05:52EEST"
        },
        {
            "variableName": "errorTaskName",
            "variableValue": "dummySmsST",
            "variableType": "string",
            "revision": 0,
            "time": "2014-08-18T09:05:52EEST"
        },
        {
            "variableName": "errorData",
            "variableValue": null,
            "variableType": "null",
            "revision": 0,
            "time": "2014-08-18T09:05:52EEST"
        },
        {
            "variableName": "errorCode",
            "variableValue": "smsTypeNotFound",
            "variableType": "string",
            "revision": 0,
            "time": "2014-08-18T09:05:52EEST"
        },
        {
            "variableName": "retryCount",
            "variableValue": 0,
            "variableType": "integer",
            "revision": 0,
            "time": "2014-08-18T09:05:37EEST"
        },
        {
            "variableName": "OrderId",
            "variableValue": "aae97bfe-590c-40ed-af6f-77906d6d4014",
            "variableType": "string",
            "revision": 0,
            "time": "2014-08-18T09:05:36EEST"
        }
    ]
}
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍


And the xml code of bpmn :


<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
  <process id="TestSMS" name="TestSMS" isExecutable="true">
    <startEvent id="startevent1" name="Start">
      <extensionElements>
        <activiti:executionListener event="start" class="org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener">
          <activiti:field name="script">
            <activiti:string><![CDATA[execution.setVariable("retryCount",0);]]></activiti:string>
          </activiti:field>
        </activiti:executionListener>
      </extensionElements>
    </startEvent>
    <sequenceFlow id="flow1" sourceRef="startevent1" targetRef="dummySmsST"></sequenceFlow>
    <endEvent id="endevent1" name="End"></endEvent>
    <sequenceFlow id="flow2" sourceRef="dummySmsST" targetRef="endevent1"></sequenceFlow>
    <exclusiveGateway id="exclusivegateway1" name="Exclusive Gateway" default="flow6"></exclusiveGateway>
    <sequenceFlow id="flow5" sourceRef="exclusivegateway1" targetRef="dummySmsST">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${retryCount<3}]]></conditionExpression>
    </sequenceFlow>
    <sequenceFlow id="flow6" sourceRef="exclusivegateway1" targetRef="endevent1"></sequenceFlow>
    <serviceTask id="dummySmsST" name="dummySmsST" activiti:async="true" activiti:class="bpm.engine.delegates.GatewayServiceDelegate">
      <extensionElements>
        <activiti:field name="serviceName">
          <activiti:string><![CDATA[SmsOperationsV1Plugin.sendDummySms]]></activiti:string>
        </activiti:field>
      </extensionElements>
    </serviceTask>
    <boundaryEvent id="boundaryerror1" name="Error" attachedToRef="dummySmsST">
      <errorEventDefinition></errorEventDefinition>
    </boundaryEvent>
    <sequenceFlow id="flow9" sourceRef="boundaryerror1" targetRef="receivetask1"></sequenceFlow>
    <sequenceFlow id="flow11" sourceRef="boundarytimer2" targetRef="exclusivegateway1"></sequenceFlow>
    <receiveTask id="receivetask1" name="Receive Task">
      <extensionElements>
        <activiti:executionListener event="start" class="org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener">
          <activiti:field name="script">
            <activiti:string><![CDATA[execution.setVariable("retryCount",retryCount+1);]]></activiti:string>
          </activiti:field>
        </activiti:executionListener>
      </extensionElements>
    </receiveTask>
    <boundaryEvent id="boundarytimer2" name="Timer" attachedToRef="receivetask1" cancelActivity="true">
      <timerEventDefinition>
        <timeDuration>PT1M</timeDuration>
      </timerEventDefinition>
    </boundaryEvent>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_TestSMS">
    <bpmndi:BPMNPlane bpmnElement="TestSMS" id="BPMNPlane_TestSMS">
      <bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="60.0" y="70.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="510.0" y="70.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="exclusivegateway1" id="BPMNShape_exclusivegateway1">
        <omgdc:Bounds height="40.0" width="40.0" x="395.0" y="123.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="dummySmsST" id="BPMNShape_dummySmsST">
        <omgdc:Bounds height="55.0" width="105.0" x="220.0" y="60.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="boundaryerror1" id="BPMNShape_boundaryerror1">
        <omgdc:Bounds height="30.0" width="30.0" x="260.0" y="100.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="receivetask1" id="BPMNShape_receivetask1">
        <omgdc:Bounds height="55.0" width="105.0" x="222.0" y="181.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="boundarytimer2" id="BPMNShape_boundarytimer2">
        <omgdc:Bounds height="30.0" width="30.0" x="292.0" y="221.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="95.0" y="87.0"></omgdi:waypoint>
        <omgdi:waypoint x="220.0" y="87.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="325.0" y="87.0"></omgdi:waypoint>
        <omgdi:waypoint x="510.0" y="87.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow5" id="BPMNEdge_flow5">
        <omgdi:waypoint x="395.0" y="143.0"></omgdi:waypoint>
        <omgdi:waypoint x="272.0" y="115.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow6" id="BPMNEdge_flow6">
        <omgdi:waypoint x="415.0" y="123.0"></omgdi:waypoint>
        <omgdi:waypoint x="527.0" y="105.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow9" id="BPMNEdge_flow9">
        <omgdi:waypoint x="275.0" y="130.0"></omgdi:waypoint>
        <omgdi:waypoint x="274.0" y="181.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow11" id="BPMNEdge_flow11">
        <omgdi:waypoint x="322.0" y="236.0"></omgdi:waypoint>
        <omgdi:waypoint x="415.0" y="235.0"></omgdi:waypoint>
        <omgdi:waypoint x="415.0" y="163.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍


Thank you.
Labels:
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1 REPLY 1

martin_grofcik
Confirmed Champ
Confirmed Champ

‎08-19-2014 12:35 AM

Hi,

May be that's the reason why:

<serviceTask id="dummySmsST" name="dummySmsST" activiti:async="true" activiti:class="bpm.engine.delegates.GatewayServiceDelegate">
is asynchronous. By default jobExecutor tries 3 times to execute this service. Whenever the jobexecutor fails to execute the job, jobexecutor retries value is decremented.  When it hits zero, the job is supposed to be dead and not retried again (ie a manual retry is required then).

Regards
Martin
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