Gareth Edwards [
https://community.jboss.org/people/garethed] created the discussion
"Re: jbpm-examples with jBPM 5.4"
To view the discussion, visit:
https://community.jboss.org/message/779947#779947
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This should work:
package org.jbpm.examples.humantask;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
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.logger.KnowledgeRuntimeLogger;
import org.drools.logger.KnowledgeRuntimeLoggerFactory;
import org.drools.runtime.StatefulKnowledgeSession;
import org.jbpm.process.workitem.wsht.HornetQHTWorkItemHandler;
import org.jbpm.task.AccessType;
import org.jbpm.task.Content;
import org.jbpm.task.Task;
import org.jbpm.task.TaskService;
import org.jbpm.task.query.TaskSummary;
import org.jbpm.task.service.ContentData;
import org.jbpm.task.service.SyncTaskServiceWrapper;
import org.jbpm.task.service.hornetq.AsyncHornetQTaskClient;
import org.jbpm.task.utils.ContentMarshallerHelper;
public class HumanTaskExample {
public static final void main(String[] args) {
try {
// load up the knowledge base
KnowledgeBase kbase = readKnowledgeBase();
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
KnowledgeRuntimeLogger logger =
KnowledgeRuntimeLoggerFactory.newThreadedFileLogger(ksession, "test", 1000);
HornetQHTWorkItemHandler hornetQHTWorkItemHandler = new
HornetQHTWorkItemHandler(ksession);
ksession.getWorkItemManager().registerWorkItemHandler("Human Task",
hornetQHTWorkItemHandler);
// start a new process instance
Map<String, Object> params = new HashMap<String, Object>();
params.put("userId", "krisv");
params.put("description", "Need a new laptop computer");
ksession.startProcess("com.sample.humantask", params);
SystemEventListenerFactory.setSystemEventListener(new SystemEventListener());
// we can reuse the client used by the Work Item Hander.
TaskService taskClient = new SyncTaskServiceWrapper(new
AsyncHornetQTaskClient("HumanTaskExample-testClient"));
taskClient.connect("127.0.0.1", 5153);
Thread.sleep(1000);
// "sales-rep" reviews request
List<String> groups = new ArrayList<String>();
groups.add("sales");
TaskSummary task1 =
taskClient.getTasksAssignedAsPotentialOwner("sales-rep", groups,
"en-UK").get(0);
System.out.println("Sales-rep executing task " + task1.getName() +
"(" + task1.getId() + ": " + task1.getDescription() + ")");
taskClient.claim(task1.getId(), "sales-rep", groups);
Thread.sleep(1000);
taskClient.start(task1.getId(), "sales-rep");
Map<String, Object> results = new HashMap<String, Object>();
results.put("comment", "Agreed, existing laptop needs
replacing");
results.put("outcome", "Accept");
ContentData contentData = ContentMarshallerHelper.marshal(results, null);
taskClient.complete(task1.getId(), "sales-rep", contentData);
Thread.sleep(2000);
// "krisv" approves result
TaskSummary task2 =
taskClient.getTasksAssignedAsPotentialOwner("krisv", "en-UK").get(0);
System.out.println("krisv executing task " + task2.getName() +
"(" + task2.getId() + ": " + task2.getDescription() + ")");
taskClient.start(task2.getId(), "krisv");
results = new HashMap<String, Object>();
results.put("outcome", "Agree");
contentData = ContentMarshallerHelper.marshal(results, null);
taskClient.complete(task2.getId(), "krisv", contentData);
Thread.sleep(2000);
// "john" as manager reviews request
groups = new ArrayList<String>();
groups.add("PM");
TaskSummary task3 =
taskClient.getTasksAssignedAsPotentialOwner("john", groups,
"en-UK").get(0);
System.out.println("john executing task " + task3.getName() +
"(" + task3.getId() + ": " + task3.getDescription() + ")");
taskClient.claim(task3.getId(), "john", groups);
taskClient.start(task3.getId(), "john");
results = new HashMap<String, Object>();
results.put("outcome", "Agree");
contentData = ContentMarshallerHelper.marshal(results, null);
taskClient.complete(task3.getId(), "john", contentData);
Thread.sleep(2000);
// "sales-rep" gets notification
TaskSummary task4 =
taskClient.getTasksAssignedAsPotentialOwner("sales-rep",
"en-UK").get(0);
System.out.println("sales-rep executing task " + task4.getName() +
"(" + task4.getId() + ": " + task4.getDescription() + ")");
taskClient.start(task4.getId(), "sales-rep");
Task task = taskClient.getTask(task4.getId());
Content content =
taskClient.getContent(task.getTaskData().getDocumentContentId());
Object result = ContentMarshallerHelper.unmarshall(content.getContent(),
null);
Map<?, ?> map = (Map<?, ?>) result;
for (Map.Entry<?, ?> entry : map.entrySet()) {
System.out.println(entry.getKey() + " = " + entry.getValue());
}
taskClient.complete(task4.getId(), "sales-rep", null);
Thread.sleep(2000);
taskClient.disconnect();
hornetQHTWorkItemHandler.dispose();
logger.close();
System.exit(0);
} catch (Throwable t) {
t.printStackTrace();
}
}
private static KnowledgeBase readKnowledgeBase() throws Exception {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource("humantask/HumanTask.bpmn"),
ResourceType.BPMN2);
return kbuilder.newKnowledgeBase();
}
private static class SystemEventListener implements org.drools.SystemEventListener {
public void debug(String arg0) {
}
public void debug(String arg0, Object arg1) {
}
public void exception(Throwable arg0) {
}
public void exception(String arg0, Throwable arg1) {
}
public void info(String arg0) {
}
public void info(String arg0, Object arg1) {
}
public void warning(String arg0) {
}
public void warning(String arg0, Object arg1) {
}
}
}
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