That’s correct. The current WSHT implementation (Drools Task) uses JPA entity manager to get hold of transaction which will not work if the transaction-type configured as JTA.

 

http://java.sun.com/javaee/5/docs/api/javax/persistence/EntityManager.html#getTransaction()

 

Cheers

Vijay

From: rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Todd Pagni
Sent: Wednesday, January 20, 2010 10:55 AM
To: rules-users@lists.jboss.org
Subject: [rules-users] Task Server gives error cannot use getTransaction()

 

When I configure the Task Server(org.drools.task) to be JTA I get the following error when adding a Human Task work item.   Is the following Persistence Unit configuration valid?  It works when the org.drools.task trans type is set to LOCAL_RESOURCE.

 

Using drools 5.1.0.M1 in JBoss 5.1

 

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

<persistence version="1.0"

      xsi:schemaLocation="http://java.sun.com/xml/ns/persistence

     http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd

     http://java.sun.com/xml/ns/persistence/orm

     http://java.sun.com/xml/ns/persistence/orm_1_0.xsd"

      xmlns:orm="http://java.sun.com/xml/ns/persistence/orm" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

      xmlns="http://java.sun.com/xml/ns/persistence">

 

      <persistence-unit name="org.drools.persistence.jpa"

            transaction-type="JTA">

            <provider>org.hibernate.ejb.HibernatePersistence</provider>

            <jta-data-source>java:/processInstanceDS</jta-data-source>

 

            <mapping-file>META-INF/orm.xml</mapping-file>

           

            <class>org.drools.persistence.session.SessionInfo</class>

            <class>org.drools.persistence.processinstance.ProcessInstanceInfo</class>

            <class>org.drools.persistence.processinstance.WorkItemInfo</class>

            <class>org.drools.persistence.processinstance.variabletypes.JPAPersistedVariable</class>

            <class>org.drools.persistence.processinstance.variabletypes.VariableInstanceInfo</class>

 

            <properties>

                  <property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect" />

                  <property name="hibernate.max_fetch_depth" value="3" />

                  <property name="hibernate.show_sql" value="true" />

                  <property name="hibernate.hbm2ddl.auto" value="update" />

                  <property name="hibernate.connection.release_mode" value="auto" />

                  <property name="hibernate.transaction.manager_lookup_class"

                        value="org.hibernate.transaction.JBossTransactionManagerLookup" />

                  <property name="jboss.entity.manager.factory.jndi.name"

                        value="java:/WorkflowServerPU" />

            </properties>

 

      </persistence-unit>

 

 

      <persistence-unit name="org.drools.task" transaction-type=" RESOURCE_LOCAL">

            <provider>org.hibernate.ejb.HibernatePersistence</provider>

            <jta-data-source>java:/processInstanceDS</jta-data-source>

            <mapping-file>META-INF/taskorm.xml</mapping-file>

 

            <class>org.drools.task.Attachment</class>

            <class>org.drools.task.Content</class>

            <class>org.drools.task.BooleanExpression</class>

            <class>org.drools.task.Comment</class>

            <class>org.drools.task.Deadline</class>

            <class>org.drools.task.Comment</class>

            <class>org.drools.task.Deadline</class>

            <class>org.drools.task.Delegation</class>

            <class>org.drools.task.Escalation</class>

            <class>org.drools.task.Group</class>

            <class>org.drools.task.I18NText</class>

            <class>org.drools.task.Notification</class>

            <class>org.drools.task.EmailNotification</class>

            <class>org.drools.task.EmailNotificationHeader</class>

            <class>org.drools.task.PeopleAssignments</class>

            <class>org.drools.task.Reassignment</class>

            <class>org.drools.task.Status</class>

            <class>org.drools.task.Task</class>

            <class>org.drools.task.TaskData</class>

            <class>org.drools.task.SubTasksStrategy</class>

            <class>org.drools.task.OnParentAbortAllSubTasksEndStrategy</class>

            <class>org.drools.task.OnAllSubTasksEndParentEndStrategy</class>

            <class>org.drools.task.User</class>

           

            <properties>

                  <property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect" />

                  <property name="hibernate.max_fetch_depth" value="3" />

                  <property name="hibernate.show_sql" value="true" />

                  <property name="hibernate.hbm2ddl.auto" value="update" />

                  <property name="hibernate.connection.release_mode" value="auto" />

                  <property name="hibernate.transaction.manager_lookup_class"

                        value="org.hibernate.transaction.JBossTransactionManagerLookup" />

                  <property name="jboss.entity.manager.factory.jndi.name"

                        value="java:/WorkflowServerPU" />

            </properties>

           

      </persistence-unit>

 

</persistence>

 

 

 

 

10:48:22,887 INFO  [STDOUT] Hibernate: update WorkItemInfo set creationDate=?, name=?, processInstanceId=?, state=?, OPTLOCK=?, workItemByteArray=? where workItemId=? and OPTLOCK=?

10:48:22,887 INFO  [STDOUT] [2010:01:20 10:01:887:debug] Message receieved on server : AddTaskRequest

10:48:22,887 INFO  [STDOUT] [2010:01:20 10:01:887:debug] Arguments : [org.drools.task.Task@537c3c9e, org.drools.task.service.ContentData@b2a90]

10:48:22,887 INFO  [STDOUT] [2010:01:20 10:01:887:exception] A JTA EntityManager cannot use getTransaction()

10:48:22,887 INFO  [STDOUT] java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction()

10:48:22,887 INFO  [STDOUT]   at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:324)

10:48:22,887 INFO  [STDOUT]   at org.drools.task.service.TaskServiceSession.doOperationInTransaction(TaskServiceSession.java:676)

10:48:22,887 INFO  [STDOUT]   at org.drools.task.service.TaskServiceSession.addTask(TaskServiceSession.java:118)

10:48:22,887 INFO  [STDOUT]   at org.drools.task.service.TaskServerHandler.messageReceived(TaskServerHandler.java:88)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:752)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:414)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:49)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:832)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:379)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:173)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:414)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:49)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:832)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.filter.logging.LoggingFilter.messageReceived(LoggingFilter.java:95)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:414)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:49)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:832)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain$HeadFilter.messageReceived(DefaultIoFilterChain.java:616)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:414)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:408)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:578)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:540)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:532)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$400(AbstractPollingIoProcessor.java:58)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.core.polling.AbstractPollingIoProcessor$Worker.run(AbstractPollingIoProcessor.java:857)

10:48:22,887 INFO  [STDOUT]   at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)

10:48:22,887 INFO  [STDOUT]   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:651)

10:48:22,887 INFO  [STDOUT]   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676)

10:48:22,887 INFO  [STDOUT]   at java.lang.Thread.run(Thread.java:595)

10:48:22,887 ERROR [STDERR] java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction()

10:48:22,887 ERROR [STDERR]   at org.hibernate.ejb.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:324)

10:48:22,887 ERROR [STDERR]   at org.drools.task.service.TaskServiceSession.doOperationInTransaction(TaskServiceSession.java:676)

10:48:22,887 ERROR [STDERR]   at org.drools.task.service.TaskServiceSession.addTask(TaskServiceSession.java:118)

10:48:22,887 ERROR [STDERR]   at org.drools.task.service.TaskServerHandler.messageReceived(TaskServerHandler.java:88)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:752)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:414)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:49)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:832)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:379)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:173)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:414)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:49)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:832)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.filter.logging.LoggingFilter.messageReceived(LoggingFilter.java:95)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:414)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:49)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:832)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain$HeadFilter.messageReceived(DefaultIoFilterChain.java:616)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:414)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:408)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:578)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:540)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:532)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$400(AbstractPollingIoProcessor.java:58)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.core.polling.AbstractPollingIoProcessor$Worker.run(AbstractPollingIoProcessor.java:857)

10:48:22,887 ERROR [STDERR]   at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)

10:48:22,887 ERROR [STDERR]   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:651)

10:48:22,887 ERROR [STDERR]   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676)

10:48:22,887 ERROR [STDERR]   at java.lang.Thread.run(Thread.java:595)

10:48:22,903 INFO  [LoggingFilter] SENT: HeapBuffer[pos=0 lim=2200 cap=4096: 00 00 08 94 AC ED 00 05 73 72 01 00 1F 6F 72 67...]

10:48:22,903 INFO  [LoggingFilter] SENT: HeapBuffer[pos=0 lim=0 cap=0: empty]

10:48:22,903 INFO  [STDOUT] [2010:01:20 10:01:903:debug] Message receieved on client : AddTaskResponse

10:48:22,903 INFO  [STDOUT] [2010:01:20 10:01:903:debug] Arguments : [java.lang.IllegalStateExcep