OSGi and Apache Felix 3.0: Beginner's Guide by Walid Joseph Gedeon PDF

By Walid Joseph Gedeon

ISBN-10: 1849511381

ISBN-13: 9781849511384

Construct a totally operational real-life program composed of a number of bundles and an online entrance finish utilizing Felix. Get your self familiar with the OSGi options, in an easy-to-follow innovative demeanour. study every little thing wanted in regards to the Felix Framework and get conversant in Gogo, its command-line shell to begin constructing your OSGi functions. Simplify your OSGi improvement adventure by means of studying approximately Felix iPOJO. A relentlessly useful beginner's consultant that may stroll you thru making real-life OSGi functions whereas displaying you the advance instruments (Maven, Eclipse, and so forth) that would make the adventure extra relaxing.

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Additional resources for OSGi and Apache Felix 3.0: Beginner's Guide

Example text

Cd bundle Name bundle CanonicalPath C:\felix\bundle Parent C:\felix Path C:\felix\bundle AbsoluteFile C:\felix\bundle AbsolutePath C:\felix\bundle CanonicalFile C:\felix\bundle ParentFile C:\felix frameworklevel and bundlelevel In Chapter 1, we've covered the start level of the framework and bundles. The frameworklevel and bundlelevel commands allow us to modify those start levels. The frameworklevel command is used to get or set the framework's active start level. Its syntax is as follows: g! info Chapter 3 frameworklevel - set framework active start level scope: felix parameters: int target start level To get the active start level of the framework, use the command without any parameters: g!

Help headers headers - display bundle headers scope: felix parameters: Bundle[] target bundles For example, to display the headers of the bundle Apache Felix Bundle Repository, use: g! Activator Bundle-Description = Bundle repository service. 2 Created-By = Apache Maven Bundle Plugin ... The inspect command displays various information on a bundle's dependencies, requirements, packages it exports, and so on. Its usage is as follows: g! Repository class, use: g! bundlerepository [1] The answer is bundle 1: Apache Felix Bundle Repository.

Help log log - display some matching log entries scope: felix parameters: int maximum number of entries String minimum log level [ debug | info | warn | error ] log - display all matching log entries scope: felix parameters: String minimum log level [ debug | info | warn | error ] The default Felix distribution doesn't come with a log service installed, so running this command at this point will issue a warning: g! log debug Log reader service is unavailable. We will install one in Chapter 10, Improving the Logging, when we add proper logging to our case study and also cover its usage in more details at that point.

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OSGi and Apache Felix 3.0: Beginner's Guide by Walid Joseph Gedeon


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