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Activiti and Spring configuration

Question asked by meditel on Oct 6, 2011
Latest reply on Oct 6, 2011 by meditel
Hi,

A hell to configure Activiti with Spring :-/
Could some one assist me here please ?

I have added my bean declaration at the end of applicationContext.xml :

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
   xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jee="http://www.springframework.org/schema/jee"
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
       http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd">
      
  <bean id="dbProperties" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="location" value="classpath:db.properties" />
    <!– Allow other PropertyPlaceholderConfigurer to run as well –>
    <property name="ignoreUnresolvablePlaceholders" value="true"/>
  </bean>

  <bean id="demoDataGenerator" class="org.activiti.explorer.demo.DemoDataGenerator">
    <property name="processEngine" ref="processEngine" />
  </bean>

  <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    <property name="driverClassName" value="${jdbc.driver}" />
    <property name="url" value="${jdbc.url}" />
    <property name="username" value="${jdbc.username}" />
    <property name="password" value="${jdbc.password}" />
     <property name="defaultAutoCommit" value="false" />
  </bean>

  <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
     <property name="dataSource" ref="dataSource" />
  </bean>
 
  <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
     <property name="dataSource" ref="dataSource" />
     <property name="transactionManager" ref="transactionManager" />
     <property name="databaseSchemaUpdate" value="true" />
     <property name="jobExecutorActivate" value="true" />
    <property name="customFormTypes">
      <list>
        <ref bean="userFormType"/>
      </list>
    </property>
  </bean>
 
  <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean" destroy-method="destroy">
     <property name="processEngineConfiguration" ref="processEngineConfiguration" />
  </bean>
 
  <bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService" />
  <bean id="runtimeService" factory-bean="processEngine" factory-method="getRuntimeService" />
  <bean id="taskService" factory-bean="processEngine" factory-method="getTaskService" />
  <bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService" />
  <bean id="managementService" factory-bean="processEngine" factory-method="getManagementService" />
  <bean id="identityService" factory-bean="processEngine" factory-method="getIdentityService" />
 
  <bean id="activitiLoginHandler" class="org.activiti.explorer.ui.login.DefaultLoginHandler">
    <property name="identityService" ref="identityService" />
  </bean>
 
  <!– Include the UI-related wiring. This UI context will be used in the alfresco activiti admin UI –>
  <import resource="activiti-ui-context.xml" />
 
  <!–  Custom form types –>
  <bean id="userFormType" class="org.activiti.explorer.form.UserFormType"/>

<bean id="myBean" class="fr.demo.MonBean">
    <property name="name" value="toto" />
</bean>
</beans>

And added the 'MonBean' class jar file to activiti-explorer\WEB-INF\lib

I see in tomcat logs that the bean 'myBean' has been successfully loaded.

And this is my process bmpn2 that using the bean in the delegateExpression :

<?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="helloworld" name="helloworld">
    <startEvent id="timerstartevent1" name="Timer start">
      <timerEventDefinition>
        <timeDuration>PT10S</timeDuration>
      </timerEventDefinition>
    </startEvent>
    <scriptTask id="scripttask1" name="Script Task" scriptFormat="groovy">
      <script><![CDATA[System.out.println("###########Started");]]></script>
    </scriptTask>
    <sequenceFlow id="flow1" name="" sourceRef="timerstartevent1" targetRef="scripttask1"></sequenceFlow>
    <serviceTask id="servicetask1" name="Service Task" activiti:delegateExpression="${myBean}"></serviceTask>
    <sequenceFlow id="flow2" name="" sourceRef="scripttask1" targetRef="servicetask1"></sequenceFlow>
    <scriptTask id="scripttask2" name="Script Task" scriptFormat="groovy">
      <script><![CDATA[System.out.println("###########Ended");]]></script>
    </scriptTask>
    <sequenceFlow id="flow3" name="" sourceRef="servicetask1" targetRef="scripttask2"></sequenceFlow>
    <endEvent id="endevent1" name="End"></endEvent>
    <sequenceFlow id="flow4" name="" sourceRef="scripttask2" targetRef="endevent1"></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_helloworld">
    <bpmndi:BPMNPlane bpmnElement="helloworld" id="BPMNPlane_helloworld">
      <bpmndi:BPMNShape bpmnElement="timerstartevent1" id="BPMNShape_timerstartevent1">
        <omgdc:Bounds height="35" width="35" x="100" y="270"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="scripttask1" id="BPMNShape_scripttask1">
        <omgdc:Bounds height="55" width="105" x="180" y="260"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="servicetask1" id="BPMNShape_servicetask1">
        <omgdc:Bounds height="55" width="105" x="340" y="260"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="scripttask2" id="BPMNShape_scripttask2">
        <omgdc:Bounds height="55" width="105" x="500" y="260"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
        <omgdc:Bounds height="35" width="35" x="660" y="270"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="135" y="287"></omgdi:waypoint>
        <omgdi:waypoint x="180" y="287"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="285" y="287"></omgdi:waypoint>
        <omgdi:waypoint x="340" y="287"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3">
        <omgdi:waypoint x="445" y="287"></omgdi:waypoint>
        <omgdi:waypoint x="500" y="287"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow4" id="BPMNEdge_flow4">
        <omgdi:waypoint x="605" y="287"></omgdi:waypoint>
        <omgdi:waypoint x="660" y="287"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>

I did the same thing with activiti-rest activiti-rest\WEB-INF\classes\activiti.cfg.xml :

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
   xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jee="http://www.springframework.org/schema/jee"
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
       http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd">
      
  <bean id="demoDataGenerator" class="org.activiti.explorer.demo.DemoDataGenerator">
    <property name="processEngine" ref="processEngine" />
  </bean>

  <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    <property name="driverClassName" value="com.mysql.jdbc.Driver" />
    <property name="url" value="jdbc:mysql://localhost:3306/activiti?autoReconnect=true" />
    <property name="username" value="root" />
    <property name="password" value="root" />
     <property name="defaultAutoCommit" value="false" />
  </bean>

  <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
     <property name="dataSource" ref="dataSource" />
  </bean>
 
  <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
     <property name="dataSource" ref="dataSource" />
     <property name="transactionManager" ref="transactionManager" />
     <property name="databaseSchemaUpdate" value="true" />
     <property name="jobExecutorActivate" value="true" />
  </bean>
 
  <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean" destroy-method="destroy">
     <property name="processEngineConfiguration" ref="processEngineConfiguration" />
  </bean>
 
  <bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService" />
  <bean id="runtimeService" factory-bean="processEngine" factory-method="getRuntimeService" />
  <bean id="taskService" factory-bean="processEngine" factory-method="getTaskService" />
  <bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService" />
  <bean id="managementService" factory-bean="processEngine" factory-method="getManagementService" />
  <bean id="identityService" factory-bean="processEngine" factory-method="getIdentityService" />
 
  <bean id="activitiLoginHandler" class="org.activiti.explorer.ui.login.DefaultLoginHandler">
    <property name="identityService" ref="identityService" />
  </bean>
<bean id="myBean" class="fr.demo.MonBean">
    <property name="name" value="toto" />
</bean> 
</beans>


And added also the activiti-conf.jar to activiti-rest\WEB-INF\lib

But i 'am having this exception all time !

Caused by: org.activiti.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'myBean'

Strange as the bean has been already loaded !

Any hints are welcome. I have spent a couple of days trying to resolve this issue :-/

BR,
Meditel

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