WSO2 Business Process Server v3.0.1 Documentation

##### Overview

- Home
- Release Note
- WS-BPEL Compliance
- License

##### Downloads

- Releases

##### Installation Guide

- Installing WSO2 BPS

##### Quick Start Guide

- Modeling the process
- Deploying the process
- Testing the process

##### User Guide

- Deploying BPEL Processes
- Deploying Human Tasks
- Managing BPEL processes
- Managing BPEL process instances
- QoS for BPEL processes
- Securing BPEL processes
- Invoking secured partner services
- Versioning
- Management API

##### Human Task Guide

- Human Tasks Quick Start Guide
- Deploying HumanTasks
- Managing Tasks
- Developing a Human Task Artifact
- Human Task Management and Configuration
- Human Task Concepts

##### Administrator Guide

- External data sources Configuration
- Registry Configuration
- Events
- Unified Endpoints
- BPEL Extensions
- Transaction Factory Configuration
- Message Exchange Interceptors
- OpenJPA specific properties
- JMS Transport Configuration
- Process Instance Cleanup Tasks
- Process Hydration and Dehydration
- Enabling Peer-to-Peer(P2P) Communication
- Setting up a BPS Cluster

##### Best Practices

- Process Deployment Best Practices

##### Concepts

- Process Versioning
- Process instance events
- Partner links

##### WS-BPEL Extensions

- Activity Failure and Recovery
- Extension Activities and Extensible Assign Operations
- XPath Extensions
- Iterable ForEach
- Flexible Assigns
- BPEL4People Extension

##### Samples

- HelloWorld
- If-Else
- ForEach
- While
- Repeat Until
- Flow and Links
- Pick
- Synchronous and Asynchronous Service Invocations
- Fault Handling
- Split
- XslTransform
- Compensation Handler
- Event Handler

##### Resources

- FAQ
- External Articles
- Library
- Source Code

##### Community

- Forum
- Mailing Lists

##### Project Information

- Issue Tracking

# WSO2 BPEL Component User Guide

## Introduction

WSO2 Business Process component adds the capability to execute business processes written using WS-BPEL standard in WSO2 SOA platform. It also provides a complete web based graphical console to deploy, manage and view processes and process instances. WSO2 Business Process component is powered by Apache ODE(Orchestration Director Engine).

### WS-BPEL

WS-BPEL defines a language for the specification of Executable and Abstract business processes. By doing so, it extends the Web Services interaction model and enables it to support business transactions. WS-BPEL defines an interoperable integration model that should facilitate the expansion of automated process integration in both the intra-corporate and the business-to-business spaces. Processes in WS-BPEL export and import functionality by using Web Service interfaces exclusively.

## Table of Content

- Processes
  - Difference between Active and Retired Processes
  - Detailed View of Deployed Business Process
  - Deployment Descriptor Editor
- Instances
  - Instance Filtering
  - Instance Detail Page
- Managing BPEL Processes
  - BPEL Package Format
  - Folder structure of BPEL Package
  - Deploying BPEL packages through the management console
  - Undeploying BPEL packages

## Processes

In the management console, under Processes click List. The Processes page will appear.

Process list will display IDs of the deployed processes with their version, status, deployed date and the package they are contained in. With this list you can retire and activate processes. You can view detailed description about the process, when you click the process id link. By clicking the Package Name, you can view details, undeploy or download the package.

### Difference between Active and Retired Processes

Active processes can be invoked by partners and as a result, new process instances will be created. When a process is retired all the running instances of that particular process will behave normally. But no new instances will be created from retired processes.

### Detailed View of Deployed Business Process

In the management console, click List under Processes. Then click on any of the process ID links. It will display a detailed description about the process including version, status, deployed date, container package of that process, total instance, instance summary, syntax highlighted process definition and process visualization.

Using the link display in front of the Status of the process users can activate or retire that process.

Under Quality of Service Configuration, you can configure QoS for each partner-link used in the business process.

Under WSDL details, you create instances for the provided partner links and view their WSDLs.

### Deployment Descriptor Editor

You can go to Deployment Descriptor Editor by clicking the link View or Edit Deployment Descriptor on any of the detailed process description pages.

This editor allows BPEL process administrators to configure process/instance/scope event generation, instance cleanup at run-time. Also it provides the other configuration details like MEX interceptors, process properties, provided services (inbound interfaces) and invoked partner services (outbound interfaces).

## Instances

When you click Instances under Business Processes, Instances page will appear. This page will display paginated list of currently available process instances in the system.

The instance list will display ID of the instance with the process id of that instance, current status, date started, last active date and actions that can be performed on that instance. Users can click on the instance id link to go to the detailed view of that instance and use process id link to view the details of the process. Users can use Suspend/Resume, Terminate and Delete links to suspend/resume active instance, terminate active instance and to delete instance from the system. Complete and Terminated instances can only be deleted and can't perform any other actions on it.

### Instance Filtering

User can filter the available instances according to their status. Advance Filter link will expand the filter from and users can use that to filter the instance list according to process name, process namespace, started date and etc.. If the user want to reset the filter and list all the available instances user can use either 'All' shortcut link or 'Reset Filter' link.

Advance Filter link will expand the filter form and user can use it to narrow down the instance list.

### Instance Details Page

When a user clicks on instance id link at the 'Instances Created' page, instance details page for the instance represented by that ID will appear.

Instance details page will display information like process id of that instance, status, last active date and event information, scope information, variable values and activity-event information of that instance. It will also include process instance details visualization with different abstraction levels

## Managing BPEL Processes

### BPEL Package Format

BPEL package is a ZIP archived directory with all the relevant deployment artifacts. Minimal BPEL package contains the deployment descriptor, one or more process definitions(.bpel or .cbp), WSDL and XSDs(excluding the ones compiled into .cbp). The deployment descriptor is a file named deploy.xml. To deploy, just copy the BPEL package containing your artifacts to the %CARBON_HOME%/repository/deployment/server/bpel directory. If you are using a URL repository copy the package to 'bpel' directory in that repository.

### Folder structure of a BPEL Package

### Deploying BPEL packages through the management console

1. In the management console, under Business Processes click Add BPEL. The Add BPEL page will appear.
2. Click Browse to locate the file you want to upload.
3. You can upload multiple files by clicking on the + sign
4. Click Upload. If the BPEL package contains valid processes and adheres to the format, a message will appear saying the deployment was successful. If there are compilation failures in process definitions, a compilation error message will appear. In case of missing deployment descriptor, 'deploy.xml does not exist' message will appear. In this case management console will not automatically go to Processes page or Deployed Packages page.

### Undeploying BPEL packages

1. In the management console, under Processes click List. The Deployed Process List page will appear.
2. Click the Package Name of the package you want to undeploy
3. Click Undeploy from the Actions list.
4. Make sure you click Yes in the Confirmation dialog.