Gives you a deep understanding of OSGi.
OSGi in Depth presents practical techniques for implementing OSGi, including enterprise services such as management, configuration, event handling, and software component models. You'll learn to custom-tailor the OSGi platform, which is itself modular, and discover how to pick and choose services to create domain-specific frameworks for your business. Also, this book shows how you can use OSGi with existing JEE services, such as JNDI and JTA.
about this book
about the cover illustration
1. OSGi as a new platform for application development
1.1. What are development platforms and application frameworks?
1.2. The OSGi technology
1.3. Benefits of using the OSGi platform
1.4. Building blocks: the essence of OSGi
1.6. Are we starting from scratch?
2. An OSGi framework primer
2.1. Modules and information hiding
2.2. Running and testing OSGi
2.3. Coping with changes to a module
2.4. Services and loose coupling
2.5. The OSGi layered architecture
3. The auction application: an OSGi case study
3.1. Establishing the requirements for an auction system
3.2. Modularization and extensibility as application requirements
3.3. Defining the interfaces
3.4. Defining the extension points
3.5. Putting it all together
3.6. The OSGi HTTP service
3.7. Improving the auction application to enterprise grade
4. In-depth look at bundles and services
4.1. Restricting a bundle’s export contract
4.2. Expanding a bundle’s export contract
4.3. Packages as requirements and capabilities
4.4. Avoiding the dreaded class-hell problem
4.5. Understanding OSGi’s class loading
4.6. Decoupling bundles using services
4.7. Improve robustness by testing your applications
5. Configuring OSGi applications
5.1. The configuration problem
5.2. The Configuration Admin service
5.3. Configuring using complex data types
5.4. Deleting configuration
5.5. Configuring multiple services
5.6. When configuration update fails
5.7. Management agents
6. A world of events
6.1. The publish-subscribe model
6.2. The Event Admin
6.3. Advanced event handling
6.4. Event Admin shortcomings
6.5. Decoupling using events
6.6. OSGi framework events
7. The persistence bundle
7.1. Bundle’s storage area
7.2. Using JDBC
7.3. Object-relation mapping through JPA
8. Transactions and containers
8.1. Undoing work
9. Blending OSGi and Java EE using JNDI
9.1. Sharing resources
9.2. Understanding Java’s yellow pages
9.3. Establishing the initial context
9.4. Handling object conversions
9.5. Exposing OSGi services in JNDI
9.6. Embedding OSGi
10. Remote services and the cloud
10.1. Remote invocation
10.2. Distribution providers
10.3. Dealing with the semantics of distributed systems
10.4. Elasticity at the cloud
11. Launching OSGi using start levels
11.1. Managing disorderly bundles
11.2. Layered architecture to managing bundles
11.3. Deploying applications
11.4. Simplifying launching of the framework
12. Managing with JMX
12.1. Java’s management API
12.2. Managing bundles
12.3. Managing services
12.4. Managing import and export packages
12.5. Managing an OSGi framework instance
12.6. Management notifications
12.7. Managing bundle configuration
12.8. OSGi JMX patterns
13. Putting it all together by extending Blueprint
13.1. Application bundles and their containers
13.2. Declarative assembly using Blueprint
13.3. Extending Blueprint
13.4. Revisiting the auction application
Appendix A: OSGi manifest headers
About the Technology
OSGi is a mature framework for developing modular Java applications. Because of its unique architecture, you can modify, add, remove, start, and stop parts of an application without taking down the whole system. You get a lot of benefit by mastering the basics, but OSGi really pays off when you dig in a little deeper.
About the book
OSGi in Depth shows Java developers how to develop to the OSGi Service Platform Enterprise specification, an emerging Java-based technology for developing modular enterprise applications.
- Deep dives into modularization, implementation decoupling, and class-loading
- Practical techniques for using JEE services
- Customizing OSGi for specific business domains
About the reader
Written for Java developers who already know the basics, OSGi in Depth picks up where OSGi in Action leaves off.
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Crucial if you're developing OSGi-based systems.
A thorough book on an increasingly important topic.
Alex has loads of experience to back up his words.
A jumpstart resource.