Executing bpmn 2.0 with j bpm 3 or (at your option) any later version

Executing BPMN 2.0 with jBPM 3 or (at your option) any later version Falko Menge JUDCon 2010 Berlin

• Consultant, trainer & coach for jBPM 3 & 4, Drools, BPMN Falko Menge • Developer of several falko.menge@camunda.com Open Source projects (Activiti, Oryx Editor, WSDL2XForms, InstantSVC, …) • Member of BPMN specification team at OMG • Co-author of „BPMN 2.0 by Example“ Areas of Interest: BPM, SOA & EAI with Open Standards and Open Source Software Process Execution (BPMN 2.0, jPDL, BPEL, XPDL, …) Enterprise Applications with Java EE

Overview BPMN Mapping BPMN to jPDL Abstracting the Engine

BPMN 2.0 – An Example

BPMN 2.0 Status …

Why does everybody want BPMN 2.0? <XML> Diagram Execution <XML> Interchange Semantics

BPMN 1.x: Just Symbols Notation

BPMN 2.0: Model and Notation Execution Examples Semantics Model Notation XML Diagram XML XMI Interchange XSLT

Desired Architecture with BPMN 2.0

What does that mean as well?

Where are those BPMN process engines?

Currently, jBPM 3 is used

Isn‘t there a gap? ?

Goal: Forward Engineering Mapping Or even Roundtrip? Process Process Analyst Engineer

Mapping Overview (1/2)

Mapping Overview (2/2)

Does that mean there are different models? „Call FraudService. Fraud- checkFraud(customer) Service“ ?? BPMN Repository Developer Repository in (Signavio) Repository (SVN) Process Engine Model in Developer Business Model in Model Execution Logical Model

Patterns Pool extraction Transform custom elements into standard language constructs Custom task service Localization

What about my Java code?

Process Engine Abstraction Layer (PEAL) ESB Application Services API BPMN Binding Modell Mapping Process Engine Binding Connectivity Services Application ESB

Example Code with PEAL UserTask task3 = taskService .createTaskQuery() .processInstanceId(pi.getId()) .potentialOwner("mike") .uniqueResult(); assertEquals("Specify Advertising strategy", task3.getActivityName()); variables = new HashMap<String, Object>(); variables.put("website_name", "SetpStone"); task3.complete(variables); pi.reload(); assertTrue(pi.isEnded()); Changes to the jbpm 4 API are minimal (but can be bound to jbpm 3 and other engines as well)

Data Object Abstraction API DataObject «interface» DataObjectAware +getPersistentDataObject() +getValue() +setPersistentDataObject() +setValue() +getTransientDataObject() 1 +setTransientDataObject() +...() PersistentDataObject TransientDataObject ExecutionContext ExecutionContext DataObjectAware +getValue() getValue() +getValue() getValue() +setValue() +setValue() 1 ContextInstace ContextInstance DataObjectAware 1 MyPersistentDataObject -NAME : String = "MyVariable" ProcessInstance ProcessInstance DataObjectAware 1 Project specific DataObjects Binding (e.g.jBPM 3) jBPM 3

Abstraction of Service Adapters jBPM 3 API Binding (e.g. jBPM 3) Project specific adaptors

Why so complicated? Example with asynchronous Services <<Node>> Invoke ESB Service EJB-Call TX 1: create request without sync. jBPM job result TX 2: call EJB ESB TX 3: process response Signal from JbpmCallback <<Node>> Invoke EJB TX 1: create request EJB-Call with jBPM job sync. result TX 2: call EJB jBPM job TX 3: process response jBPM Process

Process Engine Abstraction Layer (PEAL) ESB Application Services API BPMN Binding Modell Mapping Process Engine Binding Connectivity Services Application ESB

Thank you for your attention – Any questions?

camunda services GmbH Thank You! Zossener Str. 55-58 1096 Berlin 1 Telefon: +49 30 664 0409-00 Telefax: +49 30 664 0409-29 Email: info@camunda.com Falko Menge Consultant, trainer and software developer falko.menge@camunda.com JUDCon Berlin, 8 October 2010 The BPM Blog www.bpm-guide.de

Executing bpmn 2.0 with j bpm 3 or (at your option) any later version

by camunda services GmbH on Oct 15, 2010

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Executing bpmn 2.0 with j bpm 3 or (at your option) any later version — Presentation Transcript