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jBPM5 in action - a quickstart for developers
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jBPM Project Lead at JBoss, Red HatMay. 6, 2011•0 likes•5,783 views
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jBPM5 in action - a quickstart for developers
May. 6, 2011•0 likes•5,783 views
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Kris VerlaenenFollow
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jBPM5 in action - a quickstart for developers
- jBPM5 in Action: A Quickstart for Developers Kris Verlaenen jBPM5 Lead Engineer
- Why BPM?
- Getting started with jBPM5
- Testing, debugging, deploying
- Integrating in your architecture
- Persistence and transactions
- Console
- What is BPM? A business process is a process that describes the order in which a series of steps need to be executed, using a flow chart. Business Process Management
- Monitoring
- Speed of development
- Increased agility
- Getting started with jBPM5 !
- targeting developers and business users
- collaboration, management and monitoring using web-based consoles
- powerful rules and event integration
- lightweight
- embeddable
- generic, extensible Core Engine
- Core Engine Knowledge Base Stateful Knowledge Session Process Definition Process Instance
- BPMN 2.0 Example < definitions ... > < process id="com.sample.bpmn.hello" name="Hello World" > < startEvent id="_1" name="StartProcess" /> < sequenceFlow sourceRef="_1" targetRef="_2" /> < scriptTask id="_2" name="Hello" > < script >System.out.println("Hello World");</ script > </ scriptTask > < sequenceFlow sourceRef="_2" targetRef="_3" /> < endEvent id="_3" name="EndProcess" /> </ process > </ definitions > < definitions ... > < process id="com.sample.bpmn.hello" name="Hello World" > < startEvent id="_1" name="StartProcess" /> < sequenceFlow sourceRef="_1" targetRef="_2" /> < scriptTask id="_2" name="Hello" > < script >System.out.println("Hello World");</ script > </ scriptTask > < sequenceFlow sourceRef="_2" targetRef="_3" /> < endEvent id="_3" name="EndProcess" /> </ process > </ definitions >
- startProcess(processId, parameters)
- signalEvent(type, event)
- signalEvent(type, event, instanceId)
- abortProcessInstance(instanceId)
- getProcessInstance(instanceId)
- …
- Java Example // (1) Create knowledge base and add process definition KnowledgeBuilder kbuilder = ... kbuilder.add( ..., "sample.bpmn", ResourceType.BPMN2); KnowledgeBase kbase = kbuilder.newKnowledgeBase(); // (2) Create new stateful knowledge session StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession(); // (3) Start a new process instance ksession.startProcess(“com.sample.bpmn.hello”);
- TITLE SLIDE: HEADLINE Presenter name Title, Red Hat Date Demo
- runtime binding
- Example: Notification [ [ " name " : "Notification", " parameters " : [ "Message" : new StringDataType(), "From" : new StringDataType(), "To" : new StringDataType(), "Priority" : new StringDataType(), ], " displayName " : "Notification", " icon " : "icons/notification.gif" ] ]
- Example: Notification class NotificationHandler implements WorkItemHandler { public void executeWorkItem(WorkItem wI, WorkItemManager manager) { String from = (String) wI. getParameter ("From"); String to = (String) wI. getParameter ("To"); String m = (String) wI. getParameter ("Message"); // send email EmailService service = ...; service.sendEmail(from, to, "Notification", m); manager. completeWorkItem (wI.getId(), null); } }
- Human Task Service public void start( long taskId, String userId, .. ) public void stop( long taskId, String userId, .. ) public void release( long taskId, String userId, .. ) public void suspend( long taskId, String userId, .. ) public void resume( long taskId, String userId, .. ) public void skip( long taskId, String userId, .. ) public void delegate( long taskId, String userId, String targetUserId, .. ) public void complete( long taskId, String userId, ContentData outputData, .. )
- Testing, debugging, deploying, etc.
- Model Deploy Execute Monitor Analyze Life Cycle Mining Analysis Optimization Simulation Testing Design Monitoring Reporting Execution Integration Deployment Management Audit Human Interaction Collaboration
- JUnit Testing public class MyProcessTest extends JbpmJUnitTestCase { public void testProcess() { StatefulKnowledgeSession ksession = createKnowledgeSession ("sample.bpmn"); ProcessInstance pI = ksession. startProcess ("com.sample.bpmn.hello"); assertProcessInstanceCompleted (pI.getId(), ksession); assertNodeTriggered (pI.getId(), "StartProcess", "Hello", "EndProcess"); } }
- Debugging
- TITLE SLIDE: HEADLINE Presenter name Title, Red Hat Date Demo
- Task and process forms
- Build, deploy, test, manage and collaboration features
- TITLE SLIDE: HEADLINE Presenter name Title, Red Hat Date Demo
- Integrating in your Architecture
- Command-based
- REST service
- Web service
- REST API
- Integration
- Integration
- Integration
- Integration
- Persistence and Transactions
- History logging
- User-defined
- Persistence ProcessInstanceInfo ProcessInstanceLog NodeInstanceLog
- User Transactions Environment env = KnowledgeBaseFactory.newEnvironment(); env.set( EnvironmentName.TRANSACTION_MANAGER, TransactionManagerServices.getTransactionManager() ); UserTransaction ut = (UserTransaction) new InitialContext().lookup("java:comp/UserTransaction"); ut.begin(); // do stuff here, e.g. ksession.startProcess(..) ut.commit();
- Console
- Business user
- User task lists / forms
- Reporting
- TITLE SLIDE: HEADLINE Presenter name Title, Red Hat Date Demo
- Source http://github.com/droolsjbpm/jbpm
- Hudson http://hudson.jboss.org/hudson/job/jBPM
- Blog http://kverlaen.blogspot.com/
- #jbpm on irc.codehaus.org
- [email_address]
- jBPM user forum
- jBPM5 in Action: A Quickstart for Developers Kris Verlaenen jBPM5 Lead Engineer
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