osgi-fragment | 易学教程

How to get a Fragment-Bundle into Tycho test runtime?

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问题 I have an implementation bundle and fragment bundle dependent on it (Fragment-Host in MANIFEST). Moreover, there is a bundle with some tests. Now I want to test my implementation and use the tycho-surefire-plugin. The bundle with tests refers to the implementation bundle by means of Require-Bundle in MANIFEST. So far so good. The question is how do I get the fragment bundle into the test runtime? I have tried the dependency in the configuration of the tycho-surefire-plugin in my eclipse-test

OSGi - running outside eclipse

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问题 I have been working on getting my OSGi application to run outside eclipse. It has certainly wasn't as easy as I thought out would be certainly not just a case of running java -jar org.eclipse.osgi_3.7.1.jar and installing the plugins. I'm hoping this is the last problem java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/ This works fine in Eclipse. I have a persistence bundle and several fragmentation bundles that I load depending on the database type that I

Constraints from the fragment conflict with the host

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问题 I am trying to extend the imports of bundle A from bundle B using Fragment-Host. In bundle B I have this line: Fragment-Host: and in bundle B's Import-Package I have added the imports required by bundle A When I try to update bundle B with the manifest and start it I am getting the error: "Constraints from the fragment conflict with the host" with a list of all the imports exist in bundle B however when examining the Manifest of bundle A I don't see why these imports should conflict if they

Component inside a fragment never activated

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问题 When I create a component inside a fragment using OSGi Declarative Service way this component is not getting activated but my components in host bundle gets activated. Am I missing something? My fragment has proper meta-inf file entry for host bundle symbolic name. I declare a componet in this way @Component(immediate = true) 回答1: Because bundle fragments are never started, only resolved, declarative services components in them are never activated. The specification specifically states that

When is an OSGi fragment attached to host?

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I have an OSGi bundle with persistence service (using hibernate ) and a fragment, which contains configuration (xml file). In bundle's activator, I'm loading the configuration using: @Override public void start(BundleContext ctx) { URL url = ctx.getBundle().getResource("hibernate.cfg.xml"); SessionFactory sessionFactory = new AnnotationConfiguration().configure(url).buildSessionFactory(); } but sometimes, the URL is null. When I've tried to list all available URL s (using findEntries method), it appeared that the bundle's own ones are available always, but the fragment ones only sometimes. I'm

How to use OSGi fragments to contribute platform-dependent native code with the same filename?

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问题 I am using the JNotify project to listen to file system events. This depends on one native library per OS:processor architecture. For example, there's one library for Windows x86, one library for x86-64 etc. Monolithic bundle Originally, I had one bundle that contained both the JNotify Java classes and the native code. The native code were declared in Bundle-NativeCode as follows: (I've formatted these in the bnd style for better readibility... obviously the actual MANIFEST.MF files are

When is an OSGi fragment attached to host?

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问题 I have an OSGi bundle with persistence service (using hibernate ) and a fragment, which contains configuration (xml file). In bundle's activator, I'm loading the configuration using: @Override public void start(BundleContext ctx) { URL url = ctx.getBundle().getResource("hibernate.cfg.xml"); SessionFactory sessionFactory = new AnnotationConfiguration().configure(url).buildSessionFactory(); } but sometimes, the URL is null. When I've tried to list all available URL s (using findEntries method),