[rules-users] Human Task Example
Todd Pagni
todd.pagni at datacert.com
Mon Jan 25 14:46:31 EST 2010
You can manually add users via the OrganziationalEntity table:
User, Administrator
User, myuser
Etc.
I am doing the following to start the task server:
Environment env = KnowledgeBaseFactory.newEnvironment();
taskServerEntityManagerFactory = Persistence.createEntityManagerFactory("org.drools.task");
env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, taskServerEntityManagerFactory);
taskService = new TaskService(taskServerEntityManagerFactory, SystemEventListenerFactory
.getSystemEventListener());
server = new MinaTaskServer(taskService);
Thread thread = new Thread(server);
thread.start();
From: rules-users-bounces at lists.jboss.org [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Chuck.KS
Sent: Monday, January 25, 2010 1:26 PM
To: rules-users at lists.jboss.org
Subject: Re: [rules-users] Human Task Example
I did see that I need to populate users, but I didn't at first seen any instructions on how to do so. Reading more carefully, I think I see how to do it now, i.e. by calling "addUser()". I'll give that a try a little later today. Another thing that may give me a problem is that I didn't know what the second argument should be to the TaskService() constructor below. The documentation shows only one argument, but it seems that there is no one argument constructor anymore. Any help with that? Really appreciate your help and time! -Chuck
private static void startTaskService()
{
EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.drools.task");
TaskService taskService = new TaskService(emf,null);
MinaTaskServer server = new MinaTaskServer( taskService );
Thread thread = new Thread( server );
thread.start();
}
On Mon, Jan 25, 2010 at 1:05 PM, salaboy [via Drools - Java Rules Engine] <[hidden email] <http://n3.nabble.com/user/SendEmail.jtp?type=node&node=138369&i=0> > wrote:
I see that problem before. It means that you need to populate some users first. Insert in the database an administrator user before running the process.
On Mon, Jan 25, 2010 at 3:28 PM, Chuck.KS <[hidden email] <http://n3.nabble.com/user/SendEmail.jtp?type=node&node=138346&i=0> > wrote:
ramram wrote:
>
> Hi What do u have as a problem running the human task?
> did u run the taskservice?
> u cant start a humantask flow as long as u dont have a TaskService?
>
I did manage to put some code together but I didn't feel from reading the
documentation that I knew exactly what I was doing. I think it would be very
helpful and many questions would be avoided if a worked out example could
be provided with the drools distribution. Anyway, I really appreciate your
help. The error I got is indicated below.
Jan 25, 2010 12:16:39 PM org.hibernate.util.JDBCExceptionReporter
logExceptions
WARNING: SQL Error: 23002, SQLState: 23002
Jan 25, 2010 12:16:39 PM org.hibernate.util.JDBCExceptionReporter
logExceptions
SEVERE: Referential integrity constraint violation: FK27A9A59B680AE0:
PUBLIC.TASK FOREIGN KEY(CREATEDBY_ID) REFERENCES
PUBLIC.ORGANIZATIONALENTITY(ID) [23002-77]
Jan 25, 2010 12:16:39 PM org.hibernate.util.JDBCExceptionReporter
logExceptions
WARNING: SQL Error: 23002, SQLState: 23002
Jan 25, 2010 12:16:39 PM org.hibernate.util.JDBCExceptionReporter
logExceptions
SEVERE: Referential integrity constraint violation: FK27A9A59B680AE0:
PUBLIC.TASK FOREIGN KEY(CREATEDBY_ID) REFERENCES
PUBLIC.ORGANIZATIONALENTITY(ID) [23002-77]
Jan 25, 2010 12:16:39 PM
org.hibernate.event.def.AbstractFlushingEventListener performExecutions
SEVERE: Could not synchronize database state with session
org.hibernate.exception.ConstraintViolationException: Could not execute JDBC
batch update
    at
org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94)
    at
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
    at
org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275)
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266)
Also, I'm attaching my test file and persistence.xml file:
http://n3.nabble.com/file/n138317/RuleFlowTest.java RuleFlowTest.java ,
http://n3.nabble.com/file/n138317/persistence.xml persistence.xml
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