JBPM4.3 Integration with Spring3.0.1 and Hibernate
I wanted to create a basic standalone application as a test environment for JBPM 4.3 and spring before I used it in my application. So I had the following configuration
I am using oracle 10g DBMS, Hibernate 3.x, Spring 3.0.1 Release with JBPM 4.3. Here goes my configuration
jbpm.cfg.xml
<?xml version="1.0" encoding="UTF-8"?> <jbpm-configuration spring="enabled"> <process-engine-context> <repository-service /> <repository-cache /> <execution-service /> <history-service /> <management-service /> <identity-service /> <task-service /> <command-service name="txRequiredCommandService"> <retry-interceptor /> <environment-interceptor /> <spring-transaction-interceptor current="true"/> </command-service> <object> <field name="commandService"> <ref object="txRequiredCommandService" /> </field> </object> <object init="eager" /> <transaction-context> <repository-session /> <db-session /> <message-session /> <timer-session /> <history-sessions/> <hibernate-session current="true" /> </transaction-context> </process-engine-context> </jbpm-configuration>
and my spring application context configuration looks like
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:p="http://www.springframework.org/schema/p" xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-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/util http://www.springframework.org/schema/util/spring-util-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd "> <bean id="springHelper" class="org.jbpm.pvm.internal.processengine.SpringHelper" /> <bean id="processEngine" factory-bean="springHelper" factory-method="createProcessEngine" /> <context:annotation-config /> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method propagation="REQUIRED" name="*" /> </tx:attributes> </tx:advice> <!--<aop:config> <aop:pointcut id="processDeployer" expression="execution(* com.jbpm.DeploymentService.*(..))"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="deployProcess"/> </aop:config> --><bean id="abstractJbpmProcess" class="com.jbpm.utils.AbstractJbpmProcess" abstract="true"> <property name="processEngine" ref="processEngine"/> </bean> <bean id="deploymentService" class="com.jbpm.impl.DeploymentServiceImpl" parent="abstractJbpmProcess" /> </beans>
So I can use up my processEngine in whichever service I want. So created a simple process definition as shown below
<?xml version="1.0" encoding="UTF-8"?> <process name="GetHomeProcess" xmlns="http://jbpm.org/4.3/jpdl"> <start g="16,102,48,48"> <transition to="fork"/> </start> <fork g="96,102,48,48" name="fork"> <transition g="120,41:" to="send email"/> <transition to="call ppl"/> <transition g="120,213:" to="book tickets"/> </fork> <state g="176,16,149,52" name="send email"> <transition g="606,41:" to="final join"/> </state> <state g="176,100,149,52" name="call ppl"> <transition g="377,126:" to="shipping join"/> </state> <state g="176,184,149,58" name="book tickets"> <transition g="378,213:" to="shipping join"/> </state> <join g="353,145,48,48" name="shipping join"> <transition to="watch movie"/> </join> <state g="431,140,148,52" name="watch movie"> <transition g="607,165:" to="final join"/> </state> <join g="583,73,48,48" name="final join"> <transition to="end"/> </join> <end g="666,74,48,48" name="end"/> </process>
The problem would arise when I try to deploy the process
@Test
public void testProcessInstantiator() throws FileNotFoundException, JbpmAccessException{
String deploymendId= deployProcess();
if(deploymentService.isProcessDeployed("GetHomeProcess")==false){
String deploymendId2= deployProcess();
System.out.println("Process 2 deployed = "+deploymendId2);
}
System.out.println("dep Id = "+deploymendId);
}
private String deployProcess() throws FileNotFoundException, JbpmAccessException{
return deploymentService.deployProcess("process-defs/HomeProc.jpdl.xml");
}
Deployment service here just helps me deploy the process using JBPM APIs. Doing this shows up an error stack trace as shown
10:47:35,340 FST | [WireContext] creating process-engine 10:47:35,340 FIN | [WireContext] eagerly initializing org.jbpm.pvm.internal.id.DatabaseIdComposer 10:47:35,340 FST | [WireContext] constructing org.jbpm.pvm.internal.id.DatabaseIdComposer 10:47:35,355 FST | [WireContext] initializing org.jbpm.pvm.internal.id.DatabaseIdComposer 10:47:35,355 FST | [WireContext] constructing txRequiredCommandService 10:47:35,355 FST | [WireContext] initializing txRequiredCommandService 10:47:35,355 FST | [SpringProcessEngine] opening jbpm-springPvmEnvironment[31639999] 10:47:35,355 FST | [WireContext] creating transaction 10:47:35,355 FST | [WireContext] org.springframework.transaction.PlatformTransactionManager not found in transaction 1108447 10:47:35,355 FST | [WireContext] org.springframework.transaction.PlatformTransactionManager not found in process-engine 22106538 10:47:35,449 FST | [WireContext] org.hibernate.Session not found in transaction 1108447 10:47:35,449 FST | [WireContext] org.hibernate.Session not found in process-engine 22106538 ### EXCEPTION ########################################### 10:47:35,449 INF | [DefaultCommandService] exception while executing command org.jbpm.pvm.internal.cmd.CheckDbCmd@18b9a72 org.jbpm.api.JbpmException: no org.hibernate.Session in current environment at org.jbpm.pvm.internal.env.EnvironmentImpl.getFromCurrent(EnvironmentImpl.java:204) at org.jbpm.pvm.internal.env.EnvironmentImpl.getFromCurrent(EnvironmentImpl.java:190) at org.jbpm.pvm.internal.cmd.CheckDbCmd.execute(CheckDbCmd.java:44) at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42) at org.jbpm.pvm.internal.tx.SpringCommandCallback.doInTransaction(SpringCommandCallback.java:45) at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130) at org.jbpm.pvm.internal.tx.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:55) at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53) at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40) at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55) at org.jbpm.pvm.internal.processengine.ProcessEngineImpl.checkDb(ProcessEngineImpl.java:152) at org.jbpm.pvm.internal.processengine.SpringProcessEngine.create(SpringProcessEngine.java:70) at org.jbpm.pvm.internal.cfg.ConfigurationImpl.buildProcessEngine(ConfigurationImpl.java:92) at org.jbpm.pvm.internal.processengine.SpringHelper.createProcessEngine(SpringHelper.java:47) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:146) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:540) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:964) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:870) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:479) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:450) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:290) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:287) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:189) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:562) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:871) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:423) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) at com.testcases.TestProcessTransaction.setUpBeforeClass(TestProcessTransaction.java:27) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.ParentRunner.run(ParentRunner.java:220) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) ### EXCEPTION ########################################### 10:47:35,449 FST | [WireContext] closing transaction... 10:47:35,449 FST | [BasicEnvironment] closing PvmEnvironment[31639999] 10:47:35,449 FST | [PvmEnvironment] closed PvmEnvironment[31639999] 10:47:35,496 INF | [SessionFactoryImpl] closing
I want every transaction of JBPM to use Spring created transaction, which looks like is happening. If you notice the log statements shown before the stack trace.
10:47:35,355 FST | [WireContext] org.springframework.transaction.PlatformTransactionManager not found in transaction 1108447 10:47:35,355 FST | [WireContext] org.springframework.transaction.PlatformTransactionManager not found in process-engine 22106538 10:47:35,449 FST | [WireContext] org.hibernate.Session not found in transaction 1108447 10:47:35,449 FST | [WireContext] org.hibernate.Session not found in process-engine 22106538
I want to know why this error is showing up. Am I missing anything in my configuration? Is there any documentation or references on how the environments are being used in JBPM? Or is there any way in which I can put the session so that this stand alone application finds it.
PS: I have also attached my Maven POM.xml, which might help you see the jar dependencies in the project
Thanks,
Satish
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pom.xml 4.7 KB
