[jBPM] - how to handle this?
by yu zhou
yu zhou [https://community.jboss.org/people/zydzjy] created the discussion
"how to handle this?"
To view the discussion, visit: https://community.jboss.org/message/827890#827890
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This is my task server:
import java.util.HashMap;
import java.util.Map;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.drools.KnowledgeBaseFactory;
import org.drools.SystemEventListenerFactory;
import org.drools.runtime.Environment;
import org.drools.runtime.EnvironmentName;
import org.jbpm.task.User;
import org.jbpm.task.service.TaskService;
import org.jbpm.task.service.TaskServiceSession;
import org.jbpm.task.service.mina.MinaTaskServer;
import bitronix.tm.resource.jdbc.PoolingDataSource;
public class JBPMTaskServer{
public JBPMTaskServer() {
// TODO Auto-generated constructor stub
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
setupDataSource();
//String dialect = properties.getProperty("persistence.persistenceunit.dialect", "org.hibernate.dialect.H2Dialect");
Map<String, String> map = new HashMap<String, String>();
map.put("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
EntityManagerFactory emf = Persistence
.createEntityManagerFactory("org.jbpm.persistence.jpa",map);
/* Environment env = KnowledgeBaseFactory.newEnvironment();
env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);*/
TaskService taskService = new TaskService(emf, SystemEventListenerFactory.getSystemEventListener());
TaskServiceSession taskSession = taskService.createSession();
// now register new users and groups
//taskSession.addUser(new User("mary"));
//taskSession.addUser(new User("john"));
MinaTaskServer server = new MinaTaskServer( taskService );
Thread thread = new Thread( server );
thread.start();
}
private static void setupDataSource(){
PoolingDataSource ds = new PoolingDataSource();
ds.setUniqueName("jdbc/jbpm-ds");
ds.setClassName(com.mysql.jdbc.jdbc2.optional.MysqlXADataSource.class
.getName());
ds.setMaxPoolSize(3);
ds.setAllowLocalTransactions(true);
ds.getDriverProperties().put("user", "jbossjbpm");
ds.getDriverProperties().put("password", "jbossjbpm");
ds.getDriverProperties().put("URL", "jdbc:mysql://localhost:3306/jbpm");
// ds.getDriverProperties().put("driverClassName",
// "com.mysql.jdbc.Driver");
ds.init();
}
}
And this is my task client,
and i seprate this class into two projects:
import java.util.HashMap;
import java.util.Map;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.drools.KnowledgeBaseFactory;
import org.drools.SystemEventListenerFactory;
import org.drools.runtime.Environment;
import org.drools.runtime.EnvironmentName;
import org.jbpm.task.User;
import org.jbpm.task.service.TaskService;
import org.jbpm.task.service.TaskServiceSession;
import org.jbpm.task.service.mina.MinaTaskServer;
import bitronix.tm.resource.jdbc.PoolingDataSource;
public class JBPMTaskServer{
public JBPMTaskServer() {
// TODO Auto-generated constructor stub
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
setupDataSource();
//String dialect = properties.getProperty("persistence.persistenceunit.dialect", "org.hibernate.dialect.H2Dialect");
Map<String, String> map = new HashMap<String, String>();
map.put("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
EntityManagerFactory emf = Persistence
.createEntityManagerFactory("org.jbpm.persistence.jpa",map);
/* Environment env = KnowledgeBaseFactory.newEnvironment();
env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);*/
TaskService taskService = new TaskService(emf, SystemEventListenerFactory.getSystemEventListener());
TaskServiceSession taskSession = taskService.createSession();
// now register new users and groups
//taskSession.addUser(new User("mary"));
//taskSession.addUser(new User("john"));
MinaTaskServer server = new MinaTaskServer( taskService );
Thread thread = new Thread( server );
thread.start();
}
private static void setupDataSource(){
PoolingDataSource ds = new PoolingDataSource();
ds.setUniqueName("jdbc/jbpm-ds");
ds.setClassName(com.mysql.jdbc.jdbc2.optional.MysqlXADataSource.class
.getName());
ds.setMaxPoolSize(3);
ds.setAllowLocalTransactions(true);
ds.getDriverProperties().put("user", "jbossjbpm");
ds.getDriverProperties().put("password", "jbossjbpm");
ds.getDriverProperties().put("URL", "jdbc:mysql://localhost:3306/jbpm");
// ds.getDriverProperties().put("driverClassName",
// "com.mysql.jdbc.Driver");
ds.init();
}
}
When i run these two classes,and threw the exception:
1 15/07 09:30:33,936[main] ERROR workitem.wsht.GenericHTWorkItemHandler.executeWorkItem - Mon Jul 15 09:30:33 CST 2013: Error when creating task on task server for work item id 7. Error reported by task server: Command AddTaskRequest faild due to Could not commit transaction. Please contact task server administrator.
java.lang.RuntimeException: Command AddTaskRequest faild due to Could not commit transaction. Please contact task server administrator.
at org.jbpm.task.service.TaskServerHandler.messageReceived(TaskServerHandler.java:729)
at org.jbpm.task.service.mina.MinaTaskServerHandler.messageReceived(MinaTaskServerHandler.java:41)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
at org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:427)
at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:245)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
at org.apache.mina.filter.logging.LoggingFilter.messageReceived(LoggingFilter.java:177)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
at org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:119)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:426)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:692)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:645)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:634)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$400(AbstractPollingIoProcessor.java:66)
at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1078)
at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Process started ...7
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12 years, 9 months
[jBPM] - Human task in jbpm 5.4
by Aayush Agarwal
Aayush Agarwal [https://community.jboss.org/people/rekhyt73] created the discussion
"Human task in jbpm 5.4"
To view the discussion, visit: https://community.jboss.org/message/827739#827739
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Hi all,
My bpmn2 process has only a single user task. It executes all right in the web designer.
But when I run it in eclipse, it says "Could not find work item handler for Human Task".
My ProcessMain code had only the boilerplate stuff until now.
So I copy-pasted this part from the evaluation example:
HornetQHTWorkItemHandler humanTaskHandler = new HornetQHTWorkItemHandler(ksession);
humanTaskHandler.setIpAddress("127.0.0.1");
humanTaskHandler.setPort(5153);
ksession.getWorkItemManager().registerWorkItemHandler("Human Task", humanTaskHandler);
But I now get the following error.
Exception in thread "Thread-4" java.lang.RuntimeException: Timeout : unable to retrieve Task
....
....
....
I would be grateful to anyone who could tell me what more code should I add to get human tasks working in eclipse.
Thanks.
PS. I am using jBPM 5.4 and ksession.getWorkItemManager().registerWorkItemHandler("Human Task", new WSHumanTaskHandler()); wouldnt work as it is deprecated.
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Start a new discussion in jBPM at Community
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12 years, 9 months