A Hands-On Guide to Equinox and the OSGi Framework

In OSGI and Equinox: Creating Highly Modular Java

Autorentext
Jeff McAffer co-leads the Eclipse RCP and Equinox OSGi projects, and is CTO and co-founder of EclipseSource. He is one of the architects of the Eclipse Platform and a coauthor of The Eclipse Rich Client Platform (Addison-Wesley) and OSGi and Equinox (Addison-Wesley). He co-leads the RT PMC and is a member of the Eclipse Project PMC, the Tools Project PMC and the Eclipse Foundation Board of Directors and the Eclipse Architecture Council. Jeff is currently interested all aspects of Eclipse components, from developing and building bundles to deploying, installing and ultimately running them. Previous lives include being a Senior Technical Staff Member at IBM, a team lead at Object Technology International covering work in Smalltalk, distributed/parallel OO computing, expert systems, meta-level architectures and a Ph.D. at the University of Tokyo.**

Paul VanderLei** is a partner at Band XI International. He has more than 25 years of software engineering experience with an emphasis on object-oriented design and Agile practices. He is well-known for his innovative, yet straightforward, engineering solutions to complex problems. After earning his M.S. in Computer Science from Arizona State University, he joined Object Technology International and worked on a wide range of Smalltalk-based systems. After OTI's acquisition by IBM, Paul gained more than 10 years of experience developing embedded Java applications and user interfaces for the automotive and medical industry as a founding member of the IBM Embedded Java Enablement Team. He has been using OSGi in commercial applications since 2000 and is a coauthor of OSGi and Equinox (Addison-Wesley), a book on the proper construction of Java applications using OSGi. He lives in Grand Rapids, Michigan, with his wife and four children.**

Simon Archer** has more than 16 years of software engineering experience with an emphasis on object-oriented design, Agile practices, and software quality. After earning his B.Sc. in Computer Science from the University of Portsmouth, UK, he worked as a Smalltalk developer at Knowledge System Corporation and later at Object Technology International, which was later acquired by IBM. While at OTI in 2000, Simon began working with and teaching OSGi in areas such as telematics and RFID. Today he works for IBM Rational using OSGi to build collaborative development tools for the Jazz Foundation project.**

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Klappentext
A Hands-On Guide to Equinox and the OSGi Framework

 In OSGI and Equinox: Creating Highly Modular Java&#8482 Systems, three leading experts show developers-for the first time-exactly how to make the most of these breakthrough technologies for building highly modular dynamic systems.

You'll quickly get started with Eclipse bundle tooling, create your first OSGi-based system, and move rapidly to sophisticated production development. Next, you'll master best practices and techniques for creating systems with exceptional modularity and maintainability. You'll learn all about OSGi's Declarative Services and how to use them to solve a wide variety of real-world problems. Finally, you'll see everything that you've learned implemented in a complete case study project that takes you from early prototype through application delivery.

For every Eclipse developer, regardless of previous experience, this book

• Combines a complete hands-on tutorial, online sample code at every step, and deep technical dives for working developers
• Covers the OSGi programming model, component development, OSGi services, Eclipse bundle tooling, server-side Equinox, and much more
• Offers knowledge, guidance, and best practices for overcoming the complexities of building modular systems
• Addresses practical issues ranging from integrating third-party code libraries to server-side programming
• Includes a comprehensive case study that goes beyond prototyping to deliver a fully refined
  and refactored production systemWhatever your application, industry, or problem domain, if you want to build state-of-the-art software systems with OSGi and Equinox, you will find this book to be an essential resource.

Inhalt

**

Foreword         xxi

Preface        xxv

Acknowledgments         xxix

About the Authors        xxxiii *

**

Part I:  Introduction        1

Chapter 1: OSGi, Equinox, and Eclipse         3

1.1 A Bit of History   3

1.2 Collaboration   4

1.3 Modularity and Freedom of Action   5

1.4 Platforms   7

1.5 Ecosystems   7

1.6 OSGi in Context   8

1.7 OSGi and Equinox in Practice   10

1.8 Summary   11

Chapter 2: OSGi Concepts         13

2.1 A Community of Bundles   13

2.2 Why OSGi?   15

2.3 The Anatomy of a Bundle   18

2.4 Modularity   19

2.5 Modular Design Concepts   21

2.6 Lifecycle   22

2.7 Collaboration   24

2.8 The OSGi Framework   26

2.9 Security   27

2.10 OSGi Framework Implementations   27

2.11 Summary   28

** Part II: OSGi by Example         29

Chapter 3: Tutorial Introduction          31 **

3.1 What Is Toast?   31

3.2 The Evolution of Toast   34

3.3 Development Environment Installation   36

3.4 Sample Code   36

3.5 Target Platform Setup   39

3.6 Learning by Example   46

3.7 Summary   48

Chapter 4: Hello, Toast          49

4.1 A Simple Scenario   49

4.2 Slicing Toast into Bundles   56

4.3 Summary   65

Chapter 5: Services         67

5.1 Moving to Services   67

5.2 Registering the GPS Service   69

5.3 Registering the Airbag Service   75

5.4 Acquiring Services   79

5.5 Launching   81

5.6 Troubleshooting   82

5.7 Summary   83

Chapter 6: Dynamic Services          85

6.1 Introduction to Dynamic Services   85

6.2 Using Service Trackers   87

6.4 Using Declarative Services   97

6.5 Summary   105

Chapter 7: Client/Server Interaction         107

7.1 The Back End   108

7.2 The Client Side   111

7.3 Utility Classes   119

7.4 Running Toast   121

7.5 Summary   123

Chapter 8: Testing         125

8.1 Making Toast Testable   126

8.2 Unit-Testing Toast   126

8.3 System-Testing Toast   131

8.4 Summary   139

Chapter 9: Packaging          141

9.1 Defining a Toast Product   141

9.2 Exporting Toast   149

9.3 Packaging for Other Platforms   152

9.4 Getting Serious about Component Definition   154

9.5 Summary   158

Chapter 10: Pluggable Services          161

10.1 Separating Interface from Implementation   162

10.2 Device Simulation   165

10.3 Simulated Devices as Pluggable Services   167

10.4 Running with Simulated Devices   169

10.5 Summary   171

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