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  • Book Overview & Buying Application Development for IBM WebSphere Process Server 7 and Enterprise Service Bus 7
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Application Development for IBM WebSphere Process Server 7 and Enterprise Service Bus 7

Application Development for IBM WebSphere Process Server 7 and Enterprise Service Bus 7

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Application Development for IBM WebSphere Process Server 7 and Enterprise Service Bus 7

Application Development for IBM WebSphere Process Server 7 and Enterprise Service Bus 7

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Overview of this book

By adopting an SOA approach in Business Process Management (BPM), you can make your application flexible, reusable, and adaptable to new developments. The SOA approach also gives you the potential to lower costs (from reuse), and increase revenue (from adaptability and flexibility). However, integrating basic SOA constructs (such as Process, Business Services, and Components) and core building blocks of BPM (such as Process Modeling and Enterprise Service Bus) in a real-world application can be challenging.This book introduces basic concepts of Business Integration, SOA Fundamentals, and SOA Programming Model and implements them in numerous examples. It guides you to building an Order Management application from scratch using the principles of Business Process Management and Service Oriented Architecture and using WebSphere Process Server (WPS) and WebSphere Enterprise Service Bus (WESB). The various detailed aspects, features, and capabilities of the product are conveyed through examplesWe begin with essential concepts on Business Integration, SOA Fundamentals and SOA Programming Model. Then we set up the development environment to build your first Hello Process and Hello Mediation applications.Gradually, we build an SOA-based Order Management Application. We cover important aspects and functions of WPS and WESB with numerous practical examples. We show how to analyze your application's business requirements and check if an SOA approach is appropriate for your project. Then you do a top-down decomposition of your application and identify its use cases, business processes, and services. Having built the SOA Application, we introduce you to various non-functional topics, including: Administration, Governance, Management, Monitoring, and Security. We also discuss deployment topologies for WPS and WESB, performance tuning, and recommended practices.
Table of Contents (20 chapters)
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Application Development for IBM WebSphere Process Server 7 and Enterprise Service Bus 7
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Application Development for IBM WebSphere Process Server 7 and Enterprise Service Bus 7
Credits
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Credits
About the Authors
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About the Authors
About the Reviewers
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About the Reviewers
Preface
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Preface
Lock Free Chapter
1
Introducing IBM BPM and ESB
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Introducing IBM BPM and ESB
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What is Service Oriented Architecture (SOA)?
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Achieving success through BPM enabled by SOA
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IBM SOA Reference Architecture
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Introducing IBM WebSphere Process Server (WPS)
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Introducing IBM WebSphere Enterprise Service Bus (WESB)
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IBM's SOA Foundation lifecycle
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IBM's BPM enabled by SOA method
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Summary
2
Installing the Development Environment
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Installing the Development Environment
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WebSphere Integration Developer overview
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Prerequisite configuration
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Installing WID on Windows
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Getting Started with WID
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Words of wisdom — tips, tricks, suggestions, and pitfalls
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Summary
3
Building your Hello Process Project
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Building your Hello Process Project
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SOA programming model
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Building your first business process
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Testing modules and components
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Words of wisdom — tips, tricks, suggestions, and pitfalls
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Summary
4
Building Your Hello Mediation Project
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Building Your Hello Mediation Project
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WS standards
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Creating mediation modules
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Creating the Hello Mediation Flow
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Testing modules and components
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Summary
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Business Process Choreography Fundamentals
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Business Process Choreography Fundamentals
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Using WPS in the right scenarios
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Creating service contracts with interface editor
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Lingua Franca for BPM — Business Objects
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Working with Business Process (WS-BPEL)
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Using rule groups and rules
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Words of wisdom — tips, tricks, suggestions, and pitfalls
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Summary
6
Mediations Fundamentals
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Mediations Fundamentals
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Mediation flows
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Service Message Object (SMO)
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Working with Mediation primitives
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Dynamic routing
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Integration with external systems using adapters
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Summary
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Sales Fulfillment Application for JungleSea Inc.
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Sales Fulfillment Application for JungleSea Inc.
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Business requirements
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Existing JungleSea Inc. applications
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SOA considerations
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Architecture and design
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Architectural decisions and design patterns applied
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Laying out the build plan
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Summary
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Walk the Talk
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Walk the Talk
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Shared libraries
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End Application libraries
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Visualizing the solution
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Process Services
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Business Services and Access Services
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Summary
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Building the Order Handling Processes
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Building the Order Handling Processes
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Module assembly
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Steps involved in building business process
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Building ProcessServices-CustomerInterfaceManagement
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Building ProcessServices-OrderHandling
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Correlation sets in BPEL processes
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Summary
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Integration with Various Applications
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Integration with Various Applications
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Patterns addressed
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Module assembly
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Testing the modules
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Implementing Business Service and Access Service modules
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Building BizServices-ShippingMgmt module
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Building BizServices-CustomerCreditMgmt module
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Building BizServices-SupplierPartnerMgmt module
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Building BizServices-InventoryMgmt module
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Building BizServices-CustomerBillingMgmt module
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Building BizServices-CustomerInfoMgmt module
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Summary
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Business Space
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Business Space
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What is Business Space?
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Business Spaces
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Widgets
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Summary
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Deployment Topologies
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Deployment Topologies
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Deployment topology considerations
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WebSphere Application Server Network Deployment fundamentals
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Operational architecture
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Sales Fulfillment Application deployment topology
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Words of Wisdom
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Summary
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Management, Monitoring, and Security
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Management, Monitoring, and Security
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Solution administration tasks
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Monitoring WPS/WESB applications
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Words of wisdom — tips, tricks, suggestions, and pitfalls
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Summary
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WID, WPS, and WESB Tips, Tricks, and Pointers
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WID, WPS, and WESB Tips, Tricks, and Pointers
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Any suggested method to backup WID?
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Increasing WID's heap size
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How to add projects and libraries as dependencies in WID?
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How to reset a profile within WID?
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How to change the level of Web Services Interoperability (WS-I) compliance?
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How to change the type of your business process?
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How to get the list of ports the server uses for connections?
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Various tools and associated URLs that we should be aware of and bookmark
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Checking the version of the WPS or WESB server
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How to list all defined profiles on a WPS server?
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What is the difference between backing up admin configuration and profile backup?
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The administrator user ID and password to log in to the administrative console
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The recommended WPS deployment topology
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Turning off IBM-specific BPEL Extension
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Deploying modules with libraries by reference
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How to create versioned modules and libraries?
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Recommended practices when working in a team environment or when performing team programming
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Stopping and starting process templates with the admin console
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tranLog
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Enabling and disabling Cross-Component Trace settings
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Use of global variables in a forEach within a BPEL process
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Enabling event monitoring in WID
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Using DynaCache to improve the performance of your WPS or WESB solution?
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What is the difference between Shared context, Correlation context, and Transient context? When to use which?
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What is WID history logging?
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BPEL or Mediation Flows — which and when to choose?
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Some common business process implementation types and when to use them
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Seeing WPS data in a Derby DB
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Miscellaneous Snippet Topics
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Overriding a Web Service endpoint in a mediation flow
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What is deferred parsing in the context of WESB?
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Some performance tips and considerations
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The difference between testing a module and testing a component
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What are the best forums to get help in WID, WPS, and WESB?
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Index
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Index

What is WID history logging?

History logging is primarily meant to aid debugging during development and also help IBM support people when working on issues. It's a capability that is configurable in WID (turned on by default) whose intent is to gather, at a coarse level, just enough information so that we can have a good idea of the steps that a user took that led to an error. Rotating logs are written in the user's workspace .metadata directory and are named widHistory_n.log. These logs are viewable in the Server Logs view within WID by navigating to the workspace and loading the logfiles from the workspace .metadata directory. To view the configurable properties, open WID | Preferences | Business Integration | Logging and Tracing, as shown in the following screenshot:

There are various aspects that get logged in the history logs and are viewable through the WID Server Logs view. As shown in the following screenshot, when a history log is loaded, the aspects name appears in the content area, and these names can be filtered using the content filter of the Server Logs view. These include:

  • GeneralUI—shows WID start/end, view, or if editor is opened/activated/closed.

  • BUILD—shows build-related activities (incremental and clean).

  • REFACTOR—shows refactoring start/stop and what is being refactored.

  • SERVER—shows server initialization, state change for server and module on a server start, details about port, connection information, modules deployed to server, and so on.

  • PUBLISH—shows publish start/stop, publish type, and type of publish (added, changed, removed), and publish time.

  • INTEGRATED TEST CLIENT—shows server starts, modules added and published to the server, waits for modules to start, and how a server start or publish originated.

  • MIGRATE—shows files migrated to WID.

  • FROM_ECLIPSE_ERROR_LOG—shows errors that appear in the Eclipse error log, that is, the Error Log view. These errors indicate the workspace state when the error occurred.

WID Tracing

Tracing in WID is switched off by default. Rotating logs are written in the user's workspace .metadata directory and are named widTrace_n.log. These files are viewable through the WID Server Logs view. You can turn it on and must specify components that should be traced. You must specify the Trace string and example including:

com.ibm.*=finest would trace all.
com.ibm.wbit.*=finest: com.ibm.wbit.ui=info

Tracing levels can be one of fine, finer, finest, info, warning, or error. Any changes made are immediate—no need to restart WID.

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