Java Message Service

This book is a thorough introduction to Java Message Service (JMS), the standard API that supports "messaging" -- the software-to-software exchange of crucial data among network computers. Messaging is a key component of today's service-oriented architectures, and with this practical guide, you'll learn how JMS can help you solve many architectural challenges, such as integrating dissimilar systems and applications, increasing scalability, eliminating system bottlenecks, supporting concurrent processing, and promoting architectural flexibility and agility. Updated for JMS 1.1, the second edition of Java Message Service also explains how this vendor-agnostic specification will help you write messaging-based applications, using IBM's MQ, Progress Software's SonicMQ, ActiveMQ, and many other proprietary messaging services. With this book, you will:Build applications using point-to-point and publish-and-subscribe messaging models Use features such as transactions and durable subscriptions to make an application reliable Implement messaging within Enterprise JavaBeans (EJB), using Message Driven Beans Use JMS with RESTful applications, and with the Spring application frameworkMessaging is a powerful paradigm that makes it easier to uncouple different parts of an enterprise application . Java Message Service will quickly teach you how to use the key technology that lies behind it.

Mark Richards, Director and Sr. Technical Architect at Collaborative Consulting, LLC, is a leading authority on messaging, transaction management, systems integration, and Service Oriented Architecture. He is the author of "Java Transaction Design Strategies", contributing author of "97 Things Every Software Architect Should Know", "NFJS Anthology Volume 1", "NFJS Anthology Volume 2", and the author of numerous transaction, JMS, and SOA-related articles. Mark is a regular conference speaker on the No Fluff Just Stuff conference tour and has spoken at other conferences around the world, including QCon, TSSJS, and SYS-CON.

Richard Monson-Haefel is the author of Enterprise JavaBeans (Editions 1 - 5), Java Message Service and one of the world's leading experts and book authors on enterprise computing. He was the lead architect of OpenEJB, an open source EJB container used in Apache Geronimo, a member of the JCP Executive Committee, member of JCP EJB expert groups, and an industry analyst for Burton Group researching enterprise computing, open source, and Rich Internet Application (RIA) development. Today, Richard is the VP of Developer Relations for Curl, Inc. a RIA platform used in enterprise computing. You can learn more about Richard at his web site Monson-Haefel.

David A. Chappell is vice president and chief technologist for SOA at Oracle Corporation. Chappell has over 20 years of experience in the software industry covering a broad range of roles including Architecture, code-slinging, sales, support and marketing. He is well known worldwide for his writings and public lectures on the subjects of Service Oriented Architecture (SOA), the enterprise service bus (ESB), message oriented middleware (MOM), enterprise integration, and is a co-author of many advanced Web Services standards.

As author of the O'Reilly Enterprise Service Bus book, Dave has had tremendous impact on redefining the shape and definition of SOA infrastructure. He has extensive experience in distributed computing infrastructure, including ESB, SOA Governance, EJB and Web application server infrastructure, JMS and MOM, EAI, CORBA, and COM. Chappell's experience also includes development of client/server infrastructure, graphical user interfaces and language interpreters.

Chappell is also well noted for authoring Java Web Services (O'Reilly), Professional ebXML Foundations (Wrox) and Java Message Service (O'Reilly). In addition, he has written numerous articles in leading industry publications, such as Business Integration Journal, Enterprise Architect, Java Developers Journal, JavaPro, Web Services Journal, XML Journal and Network World.

Chappell and his works have received many industry awards including the "Java™ Technology Achievement Award" from JavaPro magazine for "Outstanding Individual Contribution to the Java Community" in 2002, and the 2005 CRN Magazine "Top 10 IT leaders" award for "casting larger-than-life shadow over the industry".

Foreword	p. xi
Preface	p. xiii
Messaging Basics	p. 1
The Advantages of Messaging	p. 3
Heterogeneous Integration	p. 3
Reduce System Bottlenecks	p. 3
Increase Scalability	p. 4
Increase End User Productivity	p. 4
Architecture Flexibility and Agility	p. 5
Enterprise Messaging	p. 5
Centralized Architectures	p. 7
Decentralized Architectures	p. 7
Hybrid Architectures	p. 8
Centralized Architecture As a Model	p. 8
Messaging Models	p. 9
Point-to-Point	p. 10
Publish-and-Subscribe	p. 10
JMS API	p. 11
Point-to-Point API	p. 13
Publish-and-Subscribe API	p. 14
Real-World Scenarios	p. 14
Service-Oriented Architecture	p. 15
Event-Driven Architecture	p. 16
Heterogeneous Platform Integration	p. 16
Enterprise Application Integration	p. 17
Business-to-Business	p. 17
Geographic Dispersion	p. 18
Information Broadcasting	p. 18
Building Dynamic Systems	p. 18
RPC Versus Asynchronous Messaging	p. 21
Tightly Coupled RPC	p. 21
Enterprise Messaging	p. 23
Developing a Simple Example	p. 25
The Chat Application	p. 25
Getting Started with the Chat Example	p. 28
Examining the Source Code	p. 30
Sessions and Threading	p. 39
Anatomy of a JMS Message	p. 41
Headers	p. 42
Automatically Assigned Headers	p. 43
Developer-Assigned Headers	p. 46
Properties	p. 47
Application-Specific Properties	p. 47
JMS-Defined Properties	p. 49
Provider-Specific Properties	p. 50
Message Types	p. 50
Message	p. 50
TextMessage	p. 51
ObjectMessage	p. 52
BytesMessage	p. 53
StreamMessage	p. 56
MapMessage	p. 58
Read-Only Messages	p. 60
Client-Acknowledged Messages	p. 61
Interoperability and Portability of Messages	p. 61
Point-to-Point Messaging	p. 63
Point-to-Point Overview	p. 63
When to Use Point-to-Point Messaging	p. 66
The QBorrower and QLender Application	p. 67
Configuring and Running the Application	p. 67
The QBorrower Class	p. 69
The QLender Class	p. 76
Message Correlation	p. 81
Dynamic Versus Administered Queues	p. 83
Load Balancing Using Multiple Receivers	p. 84
Examining a Queue	p. 85
Publish-and-Subscribe Messaging	p. 87
Publish-and-Subscribe Overview	p. 87
When to Use Publish-and-Subscribe Messaging	p. 89
The TBorrower and TLender Application	p. 90
Configuring and Running the Application	p. 90
The TLender Class	p. 92
The TBorrower Class	p. 96
Durable Versus Nondurable Subscribers	p. 100
Dynamic Versus Administered Subscribers	p. 101
Unsubscribing Dynamic Durable Subscribers	p. 104
Temporary Topics	p. 104
Message Filtering	p. 107
Message Selectors	p. 109
Identifiers	p. 110
Literals	p. 111
Comparison Operators	p. 111
Arithmetic Operators	p. 113
Declaring a Message Selector	p. 114
Message Selector Examples	p. 116
Managing Claims in an HMO	p. 116
Notification of Certain Bids on Inventory	p. 116
Priority Handling	p. 116
Stock Trade Order Auditing	p. 117
Not Delivered Semantics	p. 117
Design Considerations	p. 118
Guaranteed Messaging and Transactions	p. 125
Guaranteed Messaging	p. 125
Message Autonomy	p. 126
Store-and-Forward Messaging	p. 126
Message Acknowledgments and Failure Conditions	p. 126
Message Acknowledgments	p. 127
AUTO_ACKNOWLEDGE	p. 127
DUPS_OK_ACKNOWLEDGE	p. 132
CLIENT_ACKNOWLEDGE	p. 132
Message Groups and Acknowledgment	p. 133
Handling Redelivery of Messages in an Application	p. 134
Message Groups Example	p. 134
Message Grouping and Multiple Receivers	p. 143
Transacted Messages	p. 145
Creating and Using a JMS Transaction	p. 147
Transacted Session Example	p. 147
Distributed Transactions	p. 150
Lost Connections	p. 151
The ExceptionListener Example	p. 152
Dead Message Queues	p. 153
Java EE and Message-Driven Beans	p. 155
Java EE Overview	p. 155
Enterprise JavaBeans	p. 156
Enterprise JavaBeans 3.0 (EJB3) Overview	p. 157
Simplified Bean Development	p. 158
Dependency Injection	p. 158
Simplified Callback Methods	p. 159
Programmatic Defaults	p. 159
Interceptors	p. 160
Java Persistence API	p. 162
JMS Resources in Java EE	p. 162
The JNDI Environment Naming Context (ENC)	p. 164
Message-Driven Beans	p. 166
Concurrent Processing and Scalability	p. 168
Defining Message-Driven Beans	p. 168
Message-Driven Bean Use Cases	p. 171
Message Facade	p. 171
Transformation and Routing	p. 173
Spring and JMS	p. 177
Spring Messaging Architecture	p. 177
JmsTemplate Overview	p. 180
Send Methods	p. 181
convertAndSend Methods	p. 181
receive and receiveSelected Methods	p. 182
receiveAndConvert Methods	p. 183
Connection Factories and JMS Destinations	p. 184
Using JNDI	p. 184
Using Native Classes	p. 187
Sending Messages	p. 189
Using the send Method	p. 190
Using the convertAndSend Method	p. 191
Using a Nondefault JMS Destination	p. 193
Receiving Messages Synchronously	p. 195
Message-Driven POJOs	p. 198
The Spring Message Listener Container	p. 198
MDP Option 1: Using the MessageListener Interface	p. 199
MDP Option 2: Using the SessionAwareMessageListener Interface	p. 201
MDP Option 3: Using the MessageListenerAdapter	p. 202
Message Conversion Limitations	p. 207
The Spring JMS Namespace	p. 208
Element Properties	p. 209
Element Properties	p. 211
Deployment Considerations	p. 213
Performance, Scalability, and Reliability	p. 213
Determining Message Throughput Requirements	p. 213
Testing the Real-World Scenario	p. 214
To Multicast or Not to Multicast	p. 217
TCP/IP	p. 218
UDP	p. 218
IP Multicast	p. 218
Messaging Over IP Multicast	p. 219
The Bottom Line	p. 221
Security	p. 222
Authentication	p. 222
Authorization	p. 223
Secure Communication	p. 224
Firewalls and HTTP Tunneling	p. 224
Connecting to the Outside World	p. 225
Bridging to Other Messaging Systems	p. 227
Messaging Design Considerations	p. 229
Internal Versus External Destination	p. 229
Internal Destination Topology	p. 230
External Destination Topology	p. 231
Request/Reply Messaging Design	p. 232
Messaging Design Anti-Patterns	p. 236
Single-Purpose Queue	p. 236
Message Priority Overuse	p. 240
Message Header Misuse	p. 240
The Java Message Service API	p. 245
Message Headers	p. 265
Message Properties	p. 277
Installing and Configuring ActiveMQ	p. 285
Index	p. 291
Table of Contents provided by Ingram. All Rights Reserved.

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