Monday Jun 04, 2007

Open ESB Partner Ecosystem: Creating a Binding Component Deployment Plug-In for Netbeans

Gestalt LLC

Gestalt's Chad Gallemore has blogged about creating a Binding Component Deployment plug-in for NetBeans...

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Tuesday May 29, 2007

Deliver Composite Applications with Java, WS-BPEL & SOA

My co-workers Prabhu Balashanmugam, Kevin Schmidt, and yours truly had an article published in the March 2007 issue of Java Developers' Journal entitled Deliver Composite Applications with Java, WS-BPEL & SOA - Supporting the complete lifecycle. Tuesday morning I walked into the office after the Memorial Day weekend, and I find this issue dropped on my chair by Kevin. Too bad Prabhu and me found our photos swapped ...

Deliver Composite Applications with Java, WS-BPEL & SOA - Supporting the complete lifecycle

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Monday May 28, 2007

JBI/SOA Tips: For Asynchronous, Peer-to-Peer Collaborations Use Multiple MEPs

For long-running, conversational, peer-to-peer collaborations, where there is an asynchronous lag between a request and a response with shared state use multiple Message Exchange Patterns (MEPs) with correlations ...


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Open ESB Partner Ecosystem: Videos on using SOAPUI with Open ESB, NetBeans, and GlassFish

 Eviware SoapUi Logo

Eviware's Ole Matzura has created a series of videos demonstrating how SoapUI can be used to test Open ESB and JAX-WS deployments using SoapUI, NetBeans 6.0 (M9), Open ESB 2.0, and GlassFish.

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Sunday May 27, 2007

JBI/SOA Tips: Prefer Use of Document/Literal Rather than RPC

Prefer ‘document’ encoding and ‘literal’ use over other types for interoperability - Here's why ...


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Friday May 25, 2007

JBI/SOA Tips: Favor Contract First Development (a.k.a. Top-Down approach)

This approach forces the designer to focus on messages and contracts as the key concepts in designing a service contract ...

Design By Contract

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Thursday May 24, 2007

JBI/SOA Tips: The Wire Always Goes Forward never Back

Think of the Collaboration as an entity that relentlessly pushes forward - it may change but it never ‘goes back’ to a previous state ...

Compensation for Business Processes

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Wednesday May 23, 2007

JBI/SOA Tips: Use Separate MEPs for Business Responses

Often the business response is not available quick enough to place the acknowledgment into the response ...


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Tuesday May 22, 2007

JBI/SOA Tips: Message Exchange Patterns (MEPs) are the units of 'wire' collaboration

Message Exchange Patterns (MEPs) are the units of 'wire' collaboration and are the basic building-blocks  ...

Message Exchange Patterns are the units of wire collaboration

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Monday May 21, 2007

JBI/SOA Tips: Use Correlation Values to Reference Shared State

Share conversational state on the wire using self-defined correlations in the message ...

Identifiers in the Message Property of WSDL

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Sunday May 20, 2007

JBI/SOA Tips: Identify Shared Conversational State Upfront

Identify element(s) in the message that can serve as a shared state-holder ...

Identify Shared Conversational State

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JBI/SOA Tips: What is a Conversation in a collaboration wire-design

The conversation is a new computing context that you will have to think about and handle in wire design ...


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Saturday May 19, 2007

JBI/SOA Tips: Protocol Is Not Part of the Business Message

Do not place information that you will need to reuse to process a collaboration in the Message header ...

Message body has to stand alone 


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Thursday May 17, 2007

JBI/SOA Tips: Evolving Global Collaborations - Version Number Message Wrappers

Explicitly add a version number attribute to the first element of both the request and the response message...

Version Number message wrappers 


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Wednesday May 16, 2007

JBI/SOA Tips: For Large Messages Use MTOM

Use multi-part MIME to physically carry the message so at any point, you don’t have to parse the entire message at once...

Multipart MIME

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Sherry Barkodar's NetBeans 6.0 Preview Cookbooks

 NetBeans Cookbooks

View cook-books written for the SOA and Composite Application functionality in NetBeans 6.0 Preview (M9). These cook-books from Sherry Barkodar also include multiple Flash videos along with the  LoanProcessing application demonstrated at Java One 2007.

Among a lot of other features, these CookBooks also cover some new functionality that is available in NetBeans 6.0 Preview (M9) namely,

  • Composite Application Editor/Enterprise Mashup Editor/CASA Editor
  • Intelligent Event Processor (IEP) Engine
  • SMTP  Binding Component
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Tuesday May 15, 2007

JBI/SOA Tips: Use Unique Element to ‘Wrap’ Each Business Message

When designing global collaborations for wire-centric integration, ensure that the container of wrapped messages has a unique top-level element name...

Wrap Message with Unique Element Name

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Monday May 14, 2007

JBI/SOA Tips: Collaboration Design for 'Wire' Centric Integration

Look into the individual pieces that make up the collaboration and discuss how to handle:
  • Information Exchange
  • Evolution
  • Compensation
  • Identity
  • Access/security

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Saturday May 05, 2007

Open ESB 2.0 Beta is out

Open ESB 2.0 beta has been released. Checkout or Download it today and provide us feedback

Open ESB Architecture

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JBI/SOA Tips: Consider using a StaX-based parser to process huge XML datasets

Choose the right XML parser for your implementation. You have a choice of using either a DOM-based, SAX-based or a StaX-based XML parser.


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Thursday May 03, 2007

JBI/SOA Tips: Separation of Concerns

The Abstract WSDL documents business-specific information. The Concrete WSDL however is technical in nature and may have nothing to do with business-specific information.

The WSDL Model

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Wednesday May 02, 2007

JBI/SOA Tips: Cache wherever possible

Repeated calls over the network can degrade the performance of your system. For read intensive type services that provide relatively static content like historic data or catalog information, cache as much data as you can ...


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Tuesday May 01, 2007

JBI/SOA Tips: Security/Performance Tradeoffs

If multiple short messages are being exchanged between the client and the service, setting up security either through SSL over HTTPS or WS-Security may not be optimal because of the handshake overhead involved in setting it up.


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Monday Apr 30, 2007

JBI/SOA Tips: Stateless vs Stateful

WSDL-based Web Services define a stateless model and an unordered set of operations. WSDL and therefore WSDL-based web services do not have the concept of state  ...

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Sunday Apr 29, 2007

JBI/SOA Tips: Do not use the SOAP action header for message routing purposes

Do not rely on the SOAP action header for message routing purposes. The HTTP binding SOAP action field is not available in the SOAP 1.2 specification and has already been deprecated in the WS-I basic profile specification too.


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Saturday Apr 28, 2007

JBI/SOA Tips: Be aware of SOAP Verbosity (Message size overhead)

Depending on the nesting levels of the parameter types, XML and SOAP message overhead can grow significantly.


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Friday Apr 27, 2007

JBI/SOA Tips: As much as possible, avoid using Base64 Encoded/Raw bytes in the message Body

At times an XML could contain characters or declarations that are not supported by SOAP or the runtime - examples are, DTD declarations, binary data, locale specific character encoding, etc. In such cases you may have to use Base64 encoding of the raw bytes into the message payload. You just have to be aware of these when you do so.


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Thursday Apr 26, 2007

JBI/SOA Tips: Use strongly typed messages - Avoid use of xsd:any to represent the entire message Body

You have to stay away from the tendency to use an xsd:any element to represent your whole message body. 


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Wednesday Apr 25, 2007

JBI/SOA Tips: Use strongly typed messages - Avoid use of xsd:string to represent the entire message Body

You have to stay away from the tendency to use an xsd:string element to represent your whole message body. 


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Tuesday Apr 24, 2007

JBI/SOA Tips: Do not mix style/use in the same service

In the same service either expose all your operations with document/literal or as rpc/literal. Do not mix the style/use alternatives in the same Service.


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Gopalan Suresh Raj, a Senior Software Architect, Published Author, and a Public Speaker, is a member of Sun Microsystems, Inc.'s Research and Architecture team. For the past several years he has been designing solutions using Java and C++.

Contact him at  or

His personal public profile is available at:


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