Book description
Written by an SOA guru to help you orchestrate web services, the 100 recipes in this book will make integrating Java and BPEL a smooth process. Using the examples you’ll avoid common problems and learn sophisticated techniques.
- Easy to understand recipes for integrating Java and BPEL
- Covers wide range of integration possibilities for orchestrating business processes
- Provides step-by-step instructions on examples stretching throughout the chapters, covering all phases of development from specification to testing
In Detail
The Business Process Execution Language (BPEL) has become the de-facto standard for orchestrating web services. BPEL and web services are both clamped into Service-oriented Architecture (SOA). Development of efficient SOA composites too often requires usage of other technologies or languages, like Java. This Cookbook explains through the use of examples how to efficiently integrate BPEL with custom Java functionality.
If you need to use BPEL programming to develop web services in SOA development, this book is for you.
BPEL and Java Cookbook will show you how to efficiently integrate custom Java functionality into BPEL processes. Based on practical examples, this book shows you the solutions to a number of issues developers come across when designing SOA composite applications. The integration between the two technologies is shown two-fold; the book focuses on the ways that Java utilizes the BPEL and vice-versa.
With this book, you will take a journey through a number of recipes that solve particular problems with developing SOA composite applications. Each chapter works on a different set of recipes in a specific area. The recipes cover the whole lifecycle of developing SOA composites: from specification, through design, testing and deployment.
BPEL and Java Cookbook starts off with recipes that cover initiation of BPEL from Java and vice-versa. It then moves on to logging and tracing facilities, validation and transformation of BPEL servers, embedding of third-party Java libraries into BPEL. It also covers manipulation with variables in BPEL different techniques of Java code wrapping for web service usage and utilization of XML façades.
After reading BPEL and Java Cookbook you will be able to circumvent many of the issues that developers experience during SOA composite application development.
Table of contents
-
BPEL and Java Cookbook
- Table of Contents
- BPEL and Java Cookbook
- Credits
- About the Author
- About the Reviewers
- www.PacktPub.com
- Preface
-
1. Calling BPEL from Java
- Introduction
- Deploying a BPEL process
- Gathering a BPEL process's in and out parameters
- Calling a synchronous BPEL process from Java
- Calling an asynchronous BPEL process from Java
- Handling business faults from a synchronous BPEL process
- Handling business faults from an asynchronous BPEL process
- Mapping the results of a BPEL process
-
2. Calling Services from BPEL
- Introduction
- Implementing web services with Axis2
- Implementing web services with JAX-WS
- Invoking the RESTful web services
- Invoking the synchronous web service
- Invoking the asynchronous web service
- The dynamic selection of the web service's endpoint
- Invoking web services in a sequence
- Invoking web services in parallel
- Handling the faults thrown from a web service
- Throwing the faults from BPEL
- 3. Advanced Tracing and Logging
- 4. Custom Logging in the Oracle SOA Suite
-
5. Transforming and Validating the BPEL Services
- Introduction
- Using the XSLT transformation in BPEL
- Generating the XSLT map with the XSLT mapper
- Performing copy between the variables
- Using the functions in the transformation operations
- The chaining functions
- Defining and importing the user-defined functions
- Using the xsl:for-each command
- Defining a parameter
- Defining a variable
- Validating the variables with the <assign> activity
-
6. Embedding Third-party Java Libraries
- Introduction
- Adding third-party libraries to the SOA Suite server
- Adding custom classes to the SOA Suite server
- Adding third-party libraries to JDeveloper projects
- Adding custom classes to JDeveloper projects
- Invoking third-party libraries from BPEL 2.0 process
- Invoking third-party libraries from BPEL 1.1 process
-
7. Accessing and Updating the Variables
- Introduction
- Defining global variables in a BPEL process
- Defining local variables in a BPEL process
- Initializing a variable with an XML literal
- Initializing a variable with an inline from-spec
- Copying content between the variables
- Accessing the fields within Element-based variables
- Accessing the fields within the Message Type-based variables
- Assigning numerical values to the variables
- Applying mathematical calculations on data in the variables
- Assigning Boolean values to the variables
- Assigning date or time to the variables
- Updating the variables using the BPELX extensions
- Dynamic indexing of the variables
-
8. Exposing Java Code as a SOAP Service
- Introduction
- Defining the service interface
- Preparing the service implementation
- Annotating Java code for web service creation
- Creating a document transport web service
- Creating a RPC transport web service
- Creating literal and encoded web services
- Using attachment types with web services
- Defining a web service returning no value
- Defining a web service returning a value
- Publishing a web service
- Testing a web service
-
9. Embedding Java Code Snippets
- Introduction
- Preparing the development sandbox for the Java Embedding activity code in JDeveloper
- Using the Java code placeholder in the BPEL process
- Invoking Java code from the BPEL process
- Reading the BPEL process variables
- Setting the BPEL process variables
- Invoking Session bean from the BPEL process
- Using the utility functionality
- Adding a log to the BPEL Audit Trail
- Reading the process instance data
- Getting the BPEL process status data
-
10. Using XML Facade for DOM
- Introduction
- Setting up an XML facade project
- Generating XML facade using ANT
- Creating XML facade from XSD
- Creating XML facade from WSDL
- Packaging XML facade into JAR
- Generating Java documents for XML facade
- Invoking XML facade from BPEL processes
- Accessing complex types through XML facade
- Accessing simple types through XML facade
-
11. Exposing Java Code as a Web Service
- Introduction
- Creating a service endpoint interface
- Using non-exposable methods of service interface
- Annotating the service endpoint interface with @WebService
- Annotating the service endpoint interface with @SOAPBinding
- Wrapping exceptions into faults
- Defining a request wrapper for a web service
- Defining a response wrapper for a web service
- Defining a one or two way web service
- Defining the direction of the parameters
- Publishing a web service without an application server
- Index
Product information
- Title: BPEL and Java Cookbook
- Author(s):
- Release date: September 2013
- Publisher(s): Packt Publishing
- ISBN: 9781849689205
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