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Problem to use JBPM on gwt project
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created by <a href="https://community.jboss.org/people/sahar_m">sahar mohebi</a> in <i>jBPM Development</i> - <a href="https://community.jboss.org/message/809792#809792">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi friends,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am new on jbpm with many problems!!!</p><p>I want to use jbpm on my gwt project  and mysql.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I get error when I want to create EntityManagerFactory:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>avax.persistence.PersistenceException: <a class="jive-link-external-small" href="" rel="nofollow">PersistenceUnit: org.jbpm.persistence.jpa</a> Unable to build EntityManagerFactory</p><p>    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677)</p><p>    at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:126)</p><p>    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51)</p><p>    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)</p><p>    at com.ayriksoft.desktopapp.server.TaskServiceManager.getInstance(TaskServiceManager.java:319)</p><p>    at com.ayriksoft.desktopapp.server.JBPMServiceImpl.setup(JBPMServiceImpl.java:116)</p><p>    at com.ayriksoft.desktopapp.server.JBPMServiceImpl.initializeJbpmSession(JBPMServiceImpl.java:51)</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</p><p>    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)</p><p>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)</p><p>    at java.lang.reflect.Method.invoke(Method.java:597)</p><p>    at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:561)</p><p>    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)</p><p>    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)</p><p>    at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)</p><p>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)</p><p>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)</p><p>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)</p><p>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)</p><p>    at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)</p><p>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)</p><p>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)</p><p>    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)</p><p>    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)</p><p>    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)</p><p>    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)</p><p>    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)</p><p>    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)</p><p>    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)</p><p>    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)</p><p>    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)</p><p>    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)</p><p>    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)</p><p>    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)</p><p>    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)</p><p>    at java.lang.Thread.run(Thread.java:619)</p><p>Caused by: org.hibernate.HibernateException: Could not obtain BTM transaction manager instance</p><p>    at org.hibernate.transaction.BTMTransactionManagerLookup.getTransactionManager(BTMTransactionManagerLookup.java:50)</p><p>    at org.hibernate.impl.SessionFactoryImpl.(BitronixTransactionManager.java:62)</p><p>    ... 45 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Its my gwt service class:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public class JBPMServiceImpl extends RemoteServiceServlet implements JBPMService {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    protected StatefulKnowledgeSession session;</p><p>    private MockWorkItemHandler mockWorkItemHandler;</p><p>    Map&lt;Resource, ResourceType&gt; resources;</p><p>     TaskServiceManager tc;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    @Override</p><p>    public boolean initializeJbpmSession() {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        try {</p><p>            setup();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            session = tc.getSession();//kbase.newStatefulKnowledgeSession();</p><p>            KnowledgeRuntimeLoggerFactory.newConsoleLogger(session);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            session.addEventListener(new DefaultAgendaEventListener() {</p><p>                @Override</p><p>                public void afterRuleFlowGroupActivated(org.drools.event.rule.RuleFlowGroupActivatedEvent event) {</p><p>                    session.fireAllRules();</p><p>                }</p><p>            });</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            session.addEventListener(new DefaultProcessEventListener() {</p><p>                @Override</p><p>                public void beforeProcessStarted(ProcessStartedEvent event) {</p><p>                    session.insert(event.getProcessInstance());</p><p>                }</p><p>            });</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        } catch (Exception ex) {</p><p>            ex.printStackTrace();</p><p>            return false;</p><p>        }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        return true;</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    protected Map&lt;Resource, ResourceType&gt; getResources() {</p><p>        try {</p><p>            if (resources == null) {</p><p>                resources = new HashMap&lt;Resource, ResourceType&gt;();</p><p>                resources.put(ResourceFactory.newFileResource(System.getProperty("user.home") + "/V1/EmergencyBedRequestV1.bpmn"), ResourceType.BPMN2);</p><p>                resources.put(ResourceFactory.newFileResource(System.getProperty("user.home") + "/V1/bedAssignmentV1.drl"), ResourceType.DRL);</p><p>            }</p><p>        } catch (Exception ex) {</p><p>            ex.printStackTrace();</p><p>        }</p><p>        return resources;</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public void setup() {</p><p>        try {</p><p>            </p><p>              tc=TaskServiceManager.getInstance();</p><p>//            tc.startService();</p><p>                      </p><p>            session = tc.getSession();</p><p>            tc.connect();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newThreadedFileLogger(session, "testlog", 1000);</p><p>            CommandBasedWSHumanTaskHandler taskHandler = new CommandBasedWSHumanTaskHandler(session);</p><p>            session.getWorkItemManager().registerWorkItemHandler("Human Task", taskHandler);</p><p>            session.getWorkItemManager().registerWorkItemHandler("Notification System", taskHandler);</p><p>            taskHandler.connect();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        } catch (Exception ex) {</p><p>            Logger.getLogger(JBPMServiceImpl.class.getName()).log(Level.SEVERE, null, ex);</p><p>            ex.printStackTrace();</p><p>      throw new RuntimeException("error while creating session", ex);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>and Its my TaskServiceManager.java:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public class TaskServiceManager {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    private static String ipAddress = "127.0.0.1";</p><p>    //private static int port = 5445;</p><p>    private static int port = 9123;</p><p>    private static TaskClient client;</p><p>    private static Map<String, List<String>> groupListMap = new HashMap();</p><p>    private static StatefulKnowledgeSession ksession;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>static TaskServiceManager instance = null;</p><p>    static Thread thread;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    private TaskServiceManager() {</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public static TaskServiceManager getInstance() {</p><p>        if (instance == null) {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            instance = new TaskServiceManager();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.jbpm.persistence.jpa");</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            TaskService taskService = new TaskService(emf, SystemEventListenerFactory.getSystemEventListener());</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            MinaTaskServer server = new MinaTaskServer(taskService);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            </p><p>            Thread thread = new Thread(server);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            thread.start();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        }</p><p>        return instance;</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public void setConnection(String ipAddress, int port) {</p><p>        ipAddress = ipAddress;</p><p>        port = port;</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public void connect() {</p><p>        if (client == null) {</p><p>         client = new TaskClient(new MinaTaskClientConnector("client 1",</p><p>         new  MinaTaskClientHandler(SystemEventListenerFactory.getSystemEventListener())));</p><p>          client.connect("127.0.0.1", 9123);</p><p>            boolean connected = client.connect(ipAddress, port);</p><p>            if (!connected) {</p><p>                throw new IllegalArgumentException(</p><p>                        "Could not connect task client");</p><p>            }</p><p>        }</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>  public KnowledgeBase readKnowledgeBase(Map<Resource, ResourceType> resources)</p><p>            throws Exception {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();</p><p>        for (Map.Entry<Resource, ResourceType> entry : this.getResources().entrySet()) {</p><p>            kbuilder.add(entry.getKey(), entry.getValue());</p><p>        }</p><p>          if (kbuilder.hasErrors()) {</p><p>            KnowledgeBuilderErrors errors = kbuilder.getErrors();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            for (KnowledgeBuilderError error : errors) {</p><p>                System.out.println(">>> Error:" + error.getMessage());</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            }</p><p>            throw new IllegalStateException(">>> Knowledge couldn't be parsed! ");</p><p>        }</p><p>        KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();</p><p>        kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        return kbase;</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public StatefulKnowledgeSession getSession()</p><p>            throws Exception {</p><p>        if (ksession == null) {</p><p>            ksession = createSession();</p><p>        }</p><p>        return ksession;</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public StatefulKnowledgeSession createSession()</p><p>            throws Exception {</p><p>        System.out.print("ok1");</p><p>        KnowledgeBase kbase = readKnowledgeBase(getResources());</p><p>        System.out.print("ok2");</p><p>        EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.jbpm.persistence.jpa");</p><p>        System.out.print("ok3");</p><p>        Environment env = KnowledgeBaseFactory.newEnvironment();</p><p>        env.set("drools.persistence.jpa.EntityManagerFactory", emf);</p><p>        env.set("drools.transaction.TransactionManager", TransactionManagerServices.getTransactionManager());</p><p>        env.set("drools.Globals", new MapGlobalResolver());</p><p>//</p><p>        Properties properties = new Properties();</p><p>        properties.put("drools.processInstanceManagerFactory", "org.jbpm.persistence.processinstance.JPAProcessInstanceManagerFactory");</p><p>        properties.put("drools.processSignalManagerFactory", "org.jbpm.persistence.processinstance.JPASignalManagerFactory");</p><p>        KnowledgeSessionConfiguration config = KnowledgeBaseFactory.newKnowledgeSessionConfiguration(properties);</p><p>              </p><p>        return JPAKnowledgeService.newStatefulKnowledgeSession(kbase , config, env);</p><p>    }</p><p>    static Map<Resource, ResourceType> resources;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    static Map<Resource, ResourceType> getResources() {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        try {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            if (resources == null) {</p><p>                resources = new HashMap<Resource, ResourceType>();</p><p>                resources.put(ResourceFactory.newFileResource(System.getProperty("user.home") + "/V1/EmergencyBedRequestV1.bpmn"), ResourceType.BPMN2);</p><p>                resources.put(ResourceFactory.newFileResource(System.getProperty("user.home") + "/V1/bedAssignmentV1.drl"), ResourceType.DRL);</p><p>            }</p><p>        } catch (Exception ex) {</p><p>            ex.printStackTrace();</p><p>        }</p><p>        return resources;</p><p>    }</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>and its my persistence.xml fil in META_INF:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></div>
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