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ServiceTask after usertask ?

stroobat · 2011-02-15T15:24:16+00:00

I have the following configuration: <userTask…

stroobat

I have the following configuration:

<?xml version="1.0" encoding="UTF-8"?>

<definitions>
   <process name="Order_model" id="Order_model">

      <startEvent id="startOrder" name=""/>

      <serviceTask id="INITIATE_ORDER" name="Initiate the order" activiti:expression="#{orderServiceImpl.initiateOrder(execution)}" />

      <userTask id="provisionOrder" name="Validate and provision the order" activiti:formKey="approve.form">
          <documentation>
            This form will be used to manually approve the orders.   
          </documentation>
          <potentialOwner>
            <resourceAssignmentExpression>
              <formalExpression>management</formalExpression>
            </resourceAssignmentExpression>
          </potentialOwner>
      </userTask>
      <endEvent id="endOrderEvent" name=""/>
<serviceTask id="PLACE_ORDER" name="Place and persist the order" activiti:expression="#{orderServiceImpl.placeOrder(execution)}" />
      <sequenceFlow id="SequenceFlow" name="" sourceRef="startOrder" targetRef="INITIATE_ORDER"/>
      <sequenceFlow id="SequenceFlow_1" name="" sourceRef="INITIATE_ORDER" targetRef="provisionOrder"/>
      <sequenceFlow id="SequenceFlow_2" name="" sourceRef="provisionOrder" targetRef="PLACE_ORDER"/>
      <sequenceFlow id="SequenceFlow_3" name="" sourceRef="PLACE_ORDER" targetRef="endOrderEvent"/>
   </process>
</definitions>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

The first servicetask runs without a problem.
I can open the taskform in the activiti explorer. But when I hit the OK button in the form I get the exception:

Caused by: org.activiti.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'orderServiceImpl'
   at org.activiti.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
   at org.activiti.engine.impl.juel.AstMethod.invoke(AstMethod.java:79)
   at org.activiti.engine.impl.juel.AstMethod.eval(AstMethod.java:75)
   at org.activiti.engine.impl.juel.AstEval.eval(AstEval.java:50)
   at org.activiti.engine.impl.juel.AstNode.getValue(AstNode.java:26)
   at org.activiti.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
   at org.activiti.engine.impl.el.JuelExpression.getValue(JuelExpression.java:44)
   … 36 more

Seems like activiti tries to resolve the xml line:

<serviceTask id="PLACE_ORDER" name="Place and persist the order" activiti:expression="#{orderServiceImpl.placeOrder(execution)}" />‍

as a field submitted from the form.

The method and class exist. Even when I use the same xml as the first serviceTask I still get the same error.
My intention is just to execute the method placeOrder in the class OrderServiceImpl after I hit the 'OK' button in the activiti form.

Any ideas ?

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Comments

stroobat

I changed the flow that when the userforms has finished, the flow should ends and this seems to work.

<sequenceFlow id="SequenceFlow_2" name="" sourceRef="provisionOrder" targetRef="endOrderEvent"/>
So activiti (5.0) seems to have problems by calling a servicetask after a usertask ? Is this a bug ? Or should I configure some other properties ?

Tom.

stroobat

Just forgot to mention that the I try to call Springbeans in the servicetask method. Springbeans are declared through the @Service annotation.

frederikherema1

Hi,

Calling a service-task after a user-task works, that's not the problem. Seems like the spring-beans can't be resolved. Can you post your spring-configuration, where you configure the engine in? Looks like the annotated classes aren't picked up by the application-context.

Cheers,
Frederik

stroobat

Thanks for the reply.

Bean resolution works but only if I use them before the <userTask/>

Here is the content of my spring files:

<?xml version="1.0" encoding="UTF-8"?><br><beans xmlns="<a href="http://www.springframework.org/schema/beans" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/beans</a>"<br> xmlns:xsi="<a href="http://www.w3.org/2001/XMLSchema-instance" rel="nofollow noopener noreferrer">http://www.w3.org/2001/XMLSchema-instance</a>" xmlns:tx="<a href="http://www.springframework.org/schema/tx" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/tx</a>"<br> xmlns:aop="<a href="http://www.springframework.org/schema/aop" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/aop</a>" xmlns:context="<a href="http://www.springframework.org/schema/context" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/context</a>"<br> xsi:schemaLocation="<a href="http://www.springframework.org/schema/beans" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/beans</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/beans/spring-beans-3.0.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/beans/spring-beans-3.0.xsd</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/tx" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/tx</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/tx/spring-tx-3.0.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/tx/spring-tx-3.0.xsd</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/aop" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/aop</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/aop/spring-aop-3.0.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/aop/spring-aop-3.0.xsd</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/context" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/context</a> <a href="http://www.springframework.org/schema/context/spring-context-2.5.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/context/spring-context-2.5.xsd</a>"><br><br> <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><br>&nbsp; <property name="location" value="file:/appl/webservers/apache-tomcat-7.0.6/conf/platform.properties" /><br> </bean><br><br> <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration"><br>&nbsp; <property name="databaseType" value="oracle" /><br>&nbsp; <property name="dataSource" ref="myDataSource" /><br>&nbsp; <property name="transactionManager" ref="myTxManager"/><br>&nbsp; <property name="databaseSchemaUpdate" value="false" /><br>&nbsp; <property name="jobExecutorActivate" value="${activiti.jobexecutor}" /><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <property name="deploymentResources"><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <list><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <value>classpath*:be/xxx/poc/*.bpmn20.xml</value><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <value>classpath*:be/xxx/poc/taskform/*.form</value><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </list><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </property><br>&nbsp; <property name="history" value="full" /><br> </bean><br><br> <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean"><br>&nbsp; <property name="processEngineConfiguration" ref="processEngineConfiguration" /><br> </bean><br><br> <bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService" /><br> <bean id="runtimeService" factory-bean="processEngine" factory-method="getRuntimeService" /><br> <bean id="taskService" factory-bean="processEngine" factory-method="getTaskService" /><br> <bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService" /><br> <bean id="managementService" factory-bean="processEngine" factory-method="getManagementService" /><br></beans>

<?xml version="1.0" encoding="UTF-8"?><br><beans xmlns="<a href="http://www.springframework.org/schema/beans" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/beans</a>"<br> xmlns:xsi="<a href="http://www.w3.org/2001/XMLSchema-instance" rel="nofollow noopener noreferrer">http://www.w3.org/2001/XMLSchema-instance</a>" xmlns:tx="<a href="http://www.springframework.org/schema/tx" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/tx</a>"<br> xmlns:aop="<a href="http://www.springframework.org/schema/aop" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/aop</a>" xmlns:context="<a href="http://www.springframework.org/schema/context" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/context</a>"<br> xsi:schemaLocation="<a href="http://www.springframework.org/schema/beans" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/beans</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/beans/spring-beans-3.0.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/beans/spring-beans-3.0.xsd</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/tx" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/tx</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/tx/spring-tx-3.0.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/tx/spring-tx-3.0.xsd</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/aop" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/aop</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/aop/spring-aop-3.0.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/aop/spring-aop-3.0.xsd</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/context" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/context</a> <a href="http://www.springframework.org/schema/context/spring-context-2.5.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/context/spring-context-2.5.xsd</a>"><br><br>&nbsp;&nbsp;&nbsp; <context:component-scan base-package="be.scarlet.poc.bpm" /><br>&nbsp;&nbsp;&nbsp; <context:component-scan base-package="be.scarlet.poc.controller" /><br>&nbsp;&nbsp;&nbsp; <br><br>&nbsp;&nbsp;&nbsp; <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <property name="prefix" value="/WEB-INF/jsp/"/><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <property name="suffix" value=".jsp"/><br>&nbsp;&nbsp;&nbsp; </bean><br><br></beans><br><br>

<?xml version="1.0" encoding="UTF-8"?><br><beans xmlns="<a href="http://www.springframework.org/schema/beans" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/beans</a>"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; xmlns:xsi="<a href="http://www.w3.org/2001/XMLSchema-instance" rel="nofollow noopener noreferrer">http://www.w3.org/2001/XMLSchema-instance</a>" xmlns:smileysurprised:xm="<a href="http://www.springframework.org/schema/oxm" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/oxm</a>"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; xmlns:sws="<a href="http://www.springframework.org/schema/web-services" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/web-services</a>"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; xmlns:context="<a href="http://www.springframework.org/schema/context" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/context</a>"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; xmlns:util="<a href="http://www.springframework.org/schema/util" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/util</a>" xmlns:mvc="<a href="http://www.springframework.org/schema/mvc" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/mvc</a>"<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; xsi:schemaLocation="<a href="http://www.springframework.org/schema/beans" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/beans</a> <a href="http://www.springframework.org/schema/beans/spring-beans-3.0.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/beans/spring-beans-3.0.xsd</a><br>&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/oxm" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/oxm</a> <a href="http://www.springframework.org/schema/oxm/spring-oxm-1.5.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/oxm/spring-oxm-1.5.xsd</a><br>&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/web-services" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/web-services</a> <a href="http://www.springframework.org/schema/web-services/web-services-1.5.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/web-services/web-services-1.5.xsd</a><br>&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/context" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/context</a> <a href="http://www.springframework.org/schema/context/spring-context-3.0.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/context/spring-context-3.0.xsd</a><br>&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/util" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/util</a> <a href="http://www.springframework.org/schema/util/spring-util-3.0.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/util/spring-util-3.0.xsd</a><br>&nbsp;&nbsp;&nbsp; <a href="http://www.springframework.org/schema/oxm" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/oxm</a> <a href="http://www.springframework.org/schema/oxm/spring-oxm-1.5.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/oxm/spring-oxm-1.5.xsd</a> <a href="http://www.springframework.org/schema/mvc" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/mvc</a> <a href="http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd" rel="nofollow noopener noreferrer">http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd</a>"><br><br>&nbsp;&nbsp;&nbsp; <!&ndash; Scans the classpath of this application for @Components to deploy as beans &ndash;><br>&nbsp;&nbsp;&nbsp; <context:component-scan base-package="be.xxx.poc.controller"/><br><br>&nbsp;&nbsp;&nbsp; <!&ndash; Configures the @Controller programming model &ndash;><br>&nbsp;&nbsp;&nbsp; <mvc:annotation-driven/><br></beans><br>

frederikherema1

Is it possible to create a simple example process and unit-test (http://activiti.org/userguide/index.html#springUnitTest) that shows the exact problem?

tvanhoec

Hi,

An example was provided in http://jira.codehaus.org/browse/ACT-636.

Via JUnit the test is successful; however when completing a UserTask via the explorer the serviceTaks bean can not be resolved.

Kind Regards,
Tom

mproch

How do you exactly deploy your solution? How do you expose the REST API used by Explorer? I couldn't figure it out from the archive attached to JIRA…
Is it so, that you have 2 separate webapps - one activiti-rest included in distro, and second one - oss-bss-workflow?

If so, than this will not work. Because than you have 2 engines, sharing one DB. Only one (embedded in oss-bss-workflow) can access orderService. The one used when form is submitted by explorer uses only activiti default spring config, so it cannot access spring config deployed in oss-bss-workflow.

Again, I don't know if this is the case, but I cannot see any other reason - as unit test work, you say. And if this is the case, then one possibility would be to embed activiti-rest webapp in your webapp, so that only one engine is used

frederikherema1

Maciek may have a point.

If you are using the explorer, the process-engine is obtained through ProcessEngines.getProcessEngine(…). The configuration (activiti.cfg.xml) is only used to fetch the ProcessEngine bean itself.

Are your spring-services you want to use, declared in the same XML file as the ProcessEngineFactoryBean?

nocheinandi

Hallo everyone,

I am struggling with the same problem, see http://forums.activiti.org/en/viewtopic.php?f=6&t=4175

Is there any solution?

Best regards,

Andi