How to start a process by Standalone in Activiti

[sherlock]

Hi,
I am new to activiti. I am started exploring from few days.
I am using Activiti 5.9 and eclipse indigo and activiti 5.9.3 designer plugin.

When im trying to create a stand alone program to create a process and run. it's throwing an exception like
SEVERE: Error while closing command context
org.activiti.engine.ActivitiException: no processes deployed with key 'startProcess'.

my MyProcess.bpmn code is like below

<?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: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="startProcess" name="Start process">
    <startEvent id="startevent1" name="Start"></startEvent>
    <userTask id="usertask1" name="User Task" activiti:assignee="kermit"></userTask>
    <sequenceFlow id="flow1" name="" sourceRef="startevent1" targetRef="usertask1"></sequenceFlow>
    <endEvent id="endevent1" name="End"></endEvent>
    <sequenceFlow id="flow2" name="" sourceRef="usertask1" targetRef="endevent1"></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_startProcess">
    <bpmndi:BPMNPlane bpmnElement="startProcess" id="BPMNPlane_startProcess">
      <bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1">
        <omgdc:Bounds height="35" width="35" x="120" y="270"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask1" id="BPMNShape_usertask1">
        <omgdc:Bounds height="55" width="105" x="200" y="260"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
        <omgdc:Bounds height="35" width="35" x="360" y="270"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="155" y="287"></omgdi:waypoint>
        <omgdi:waypoint x="200" y="287"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="305" y="287"></omgdi:waypoint>
        <omgdi:waypoint x="360" y="287"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>

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and my simple java program is like.

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngineConfiguration;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;



public class Demo {
public static void main(String[] args) {
   
   ProcessEngine processEngine=ProcessEngineConfiguration.createStandaloneInMemProcessEngineConfiguration().buildProcessEngine();
   
   RepositoryService repositoryService=processEngine.getRepositoryService();
   repositoryService.createDeployment().addClasspathResource("diagrams/MyProcess.bpmn").deploy();
   
   RuntimeService runtimeService=processEngine.getRuntimeService();
   ProcessInstance processInstance=runtimeService.startProcessInstanceByKey("startProcess");
   
   TaskService taskService=processEngine.getTaskService();
   Task task=taskService.createTaskQuery().taskAssignee("kermit").singleResult();

   System.out.println(task.getName());
}
}

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so please help me what is the wrong in my code.


Thanks
Sherlock

[frederikherema1]

Are you running from within eclipse? Make sure the "diagram" folder is on your class path (-> make it a source-folder).

[sherlock]

Are you running from within eclipse? Make sure the "diagram" folder is on your class path (-> make it a source-folder).

Yeah i am running in eclipse and created the diagram folder in the  src/main/resources.

its is pass through the following code its able to find the bpmn process but its not able to find the process id.

RepositoryService repositoryService=processEngine.getRepositoryService();
   repositoryService.createDeployment().addClasspathResource("diagrams/MyProcess.bpmn").deploy();


Please help me….

Thanks
Sherlock

[frederikherema1]

Your process should be a "bpmn20.xml" file, instead of just a "bpmn" file, in order toz be picked up by the BPMNDeployer. If not, it will consider the file as "just another resource"…

You probably copied this from the designer unit-test, which adds the bpmn-file as a stream, naming it "myProcess.bpmn20.xml".

[sherlock]

Your process should be a "bpmn20.xml" file, instead of just a "bpmn" file, in order toz be picked up by the BPMNDeployer. If not, it will consider the file as "just another resource"…

You probably copied this from the designer unit-test, which adds the bpmn-file as a stream, naming it "myProcess.bpmn20.xml".

when i changed it to bpmn20.xml its giving following exception.

Exception in thread "main" org.activiti.engine.ActivitiException: resource 'diagrams/MyProcess.bpmn20.xml' not found
at org.activiti.engine.impl.repository.DeploymentBuilderImpl.addClasspathResource(DeploymentBuilderImpl.java:59)
at com.sample.Demo.main(Demo.java:41)

and i have tried below code its able to find the process id but while printing the task namecode in the bold font. its giving the follwing Exception




log4j:WARN No appenders could be found for logger (org.apache.ibatis.logging.LogFactory).
log4j:WARN Please initialize the log4j system properly.
Jul 25, 2012 12:38:09 PM org.activiti.engine.impl.ProcessEngineImpl <init>
INFO: ProcessEngine default created
Jul 25, 2012 12:38:09 PM org.activiti.engine.impl.bpmn.deployer.BpmnDeployer deploy
INFO: Processing resource diagrams/MyProcess.bpmn
Jul 25, 2012 12:38:09 PM org.activiti.engine.impl.bpmn.deployer.BpmnDeployer deploy
INFO: Processing resource MyProcess.bpmn20.xml
Jul 25, 2012 12:38:09 PM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XMLSchema currently not supported as typeLanguage
Jul 25, 2012 12:38:09 PM org.activiti.engine.impl.bpmn.parser.BpmnParse parseDefinitionsAttributes
INFO: XPath currently not supported as expressionLanguage
Jul 25, 2012 12:38:09 PM org.activiti.engine.impl.bpmn.deployer.BpmnDeployer deploy
INFO: Processing resource MyProcess.startProcess.png
Exception in thread "main" java.lang.NullPointerException
at com.sample.Demo.main(Demo.java:47)
stand alone code that i deployed is


package com.sample;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngineConfiguration;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;



public class Demo {
public static void main(String[] args) {
    
    // Create Activiti process engine
    ProcessEngine processEngine = ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration().buildProcessEngine();
   
    // Get Activiti services
    RepositoryService repositoryService = processEngine.getRepositoryService();
    RuntimeService runtimeService = processEngine.getRuntimeService();
   
    // Deploy the process definition
    repositoryService.createDeployment().addClasspathResource("diagrams/MyProcess.bpmn").deploy();
     
    // Start a process instance
    runtimeService.startProcessInstanceByKey("startProcess");
    TaskService taskService=processEngine.getTaskService();
   Task task=taskService.createTaskQuery().taskAssignee("kermit").singleResult();
   [b]System.out.println(task.getName());[/b]
  }
}




Thanks
Sherlock

[frederikherema1]

You should also RENAME the file to *.bpmn20.xml

OR

Add the file to the deployment this way:


.addInputStream("myProcess.bpmn20.xml, ReflectUtil.getResourceAsStream("myProcess.bpmn")

As I said, the engine only triggers process-parsing when resource NAME ends with bpmn20.xml

[sherlock]

You should also RENAME the file to *.bpmn20.xml

OR

Add the file to the deployment this way:


.addInputStream("myProcess.bpmn20.xml, ReflectUtil.getResourceAsStream("myProcess.bpmn")

As I said, the engine only triggers process-parsing when resource NAME ends with bpmn20.xml

Yes fedrick,
I mentioned the file name as you said and i posted the Exception also in the above post as



Exception in thread "main" org.activiti.engine.ActivitiException: resource 'diagrams/MyProcess.bpmn20.xml' not found
at org.activiti.engine.impl.repository.DeploymentBuilderImpl.addClasspathResource(DeploymentBuilderImpl.java:59)
at com.sample.Demo.main(Demo.java:41)

and when i used deployment with addInputStream method.
repositoryService.createDeployment().addInputStream("MyProcess.bpmn20.xml", ReflectUtil.getResourceAsStream("MyProcess.bpmn")).deploy();
its giving follwing error


INFO: ProcessEngine default created
Exception in thread "main" org.activiti.engine.ActivitiException: inputStream for resource 'MyProcess.bpmn20.xml' is null
at org.activiti.engine.impl.repository.DeploymentBuilderImpl.addInputStream(DeploymentBuilderImpl.java:46)
at com.sample.Demo.main(Demo.java:41)


and i mentioned the code that is working  but the following error is occurring while printing the task.getName().


public static void main(String[] args) {
    
    // Create Activiti process engine
    ProcessEngine processEngine = ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration().buildProcessEngine();
   
    // Get Activiti services
    RepositoryService repositoryService = processEngine.getRepositoryService();
    RuntimeService runtimeService = processEngine.getRuntimeService();
   
    // Deploy the process definition
    repositoryService.createDeployment().addClasspathResource("diagrams/MyProcess.bpmn").deploy();
     
    // Start a process instance
    runtimeService.startProcessInstanceByKey("startProcess");
    TaskService taskService=processEngine.getTaskService();
   Task task=taskService.createTaskQuery().taskAssignee("kermit").singleResult();
   System.out.println(task.getName());
  }

please help me to get it resolved.

Thanks
Sherlock

[frederikherema1]

Try using

repositoryService.createDeployment().addInputStream("MyProcess.bpmn20.xml", ReflectUtil.getResourceAsStream("diagrams/MyProcess.bpmn")).deploy();

[sherlock]

Try using

repositoryService.createDeployment().addInputStream("MyProcess.bpmn20.xml", ReflectUtil.getResourceAsStream("diagrams/MyProcess.bpmn")).deploy();

Yeah it worked..

Thank u….
Sherlock

[martin_grofcik]

It is hard to guess.
Could you create jUnit test?
http://forums.activiti.org/content/sticky-how-write-unit-test