jBPM HQ example

ProcessMainHQEx.java

package com.sample;

import java.util.List;
import java.util.UUID;

import org.drools.KnowledgeBase;
import org.drools.SystemEventListenerFactory;
import org.drools.builder.KnowledgeBuilder;
import org.drools.builder.KnowledgeBuilderFactory;
import org.drools.builder.ResourceType;
import org.drools.io.ResourceFactory;
import org.drools.runtime.StatefulKnowledgeSession;
import org.jbpm.process.workitem.wsht.SyncWSHumanTaskHandler;
import org.jbpm.process.workitem.wsht.WSHumanTaskHandler;
import org.jbpm.task.query.TaskSummary;
import org.jbpm.task.service.AsyncTaskServiceWrapper;
import org.jbpm.task.service.TaskClient;
import org.jbpm.task.service.hornetq.CommandBasedHornetQWSHumanTaskHandler;
import org.jbpm.task.service.hornetq.HornetQTaskClientConnector;
import org.jbpm.task.service.hornetq.HornetQTaskClientHandler;
import org.jbpm.task.service.local.LocalTaskService;
import org.jbpm.test.JBPMHelper;

/**
 * This is a sample file to launch a process.
 */
public class ProcessMainHQEx {

	public static final void main(String[] args) throws Exception {
		startUp();
		// load up the knowledge base
		KnowledgeBase kbase = readKnowledgeBase();
		StatefulKnowledgeSession ksession = JBPMHelper.newStatefulKnowledgeSession(kbase);
		
		CommandBasedHornetQWSHumanTaskHandler humanTaskHandler = new CommandBasedHornetQWSHumanTaskHandler(ksession);
		humanTaskHandler.connect();
		ksession.getWorkItemManager().registerWorkItemHandler("Human Task", humanTaskHandler);
		
		TaskClient taskClient = new TaskClient(
				new HornetQTaskClientConnector("tasksQueue/client"+UUID.randomUUID().toString(),
						new HornetQTaskClientHandler(SystemEventListenerFactory.getSystemEventListener())));;
		taskClient.connect("127.0.0.1", 5446);
		AsyncTaskServiceWrapper taskService = new AsyncTaskServiceWrapper(taskClient);
		
		
		// start a new process instance
		ksession.startProcess("com.sample.bpmn.hello");
		System.out.println("Process started ...");
		
		List<TaskSummary> list = taskService.getTasksAssignedAsPotentialOwner("john", "en-UK");
		TaskSummary task = list.get(0);
		System.out.println("task.getProcessId() = " + task.getProcessId());
		
	}

	private static KnowledgeBase readKnowledgeBase() throws Exception {
		KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
		kbuilder.add(ResourceFactory.newClassPathResource("sample.bpmn"), ResourceType.BPMN2);
		return kbuilder.newKnowledgeBase();
	}
	
	private static void startUp() {
		JBPMHelper.startH2Server();
		JBPMHelper.setupDataSource();
		// please comment this line if you already have the task service running,
		// for example when running the jbpm-installer
		//JBPMHelper.startTaskService();
	}
	
}