以编程方式启动OSGi文件夹捆绑包

Question

I've created a OSGi Bundle Project in Eclipse and I want to start it programmatically from another Java Project.

This is what I'm trying to do:

FrameworkFactory frameworkFactory = ServiceLoader.load(FrameworkFactory.class).iterator().next();
Map<String,String> config = new HashMap<String,String>();
Framework framework = frameworkFactory.newFramework(config);
framework.start();
BundleContext context = framework.getBundleContext();
Bundle bundle = context.installBundle("file:./test.ServiceA");
bundle.start();

but I have this error

Exception in thread "main" org.osgi.framework.BundleException: Error loading bundle activator.
...
Caused by: java.lang.ClassNotFoundException: test.servicea.Activator cannot be found by test.ServiceA_1.0.0.qualifier

everything works if I install the plugin jar instead of point to the folder

Bundle bundle = context.installBundle("file:./tmp/test.ServiceA_1.0.0.201504172035.jar");       

but I would like to debug directly the Eclipse project folder.

Anyone is able to help me?

Answer 1

Put "reference:" to the beginning of the URL. By doing that

• The content of the bundle will not be copied to the working (or cache) folder of the OSGi container but it will be used from its original location
• Folders can be installed as OSGi bundles

This is not part of the specification but works in Equinox and Felix (and probably in Knopflerfish as well)

Based on your example:

Bundle bundle = context.installBundle("reference:file:./test.ServiceA");

Edit based on comments

As the MANIFEST.MF file is in ./test.ServiceA but the compiled classes are under ./test.serviceA/bin , the "Bundle-Classpath: bin" MANIFEST header must be provided temporary until the bundle is installed from the folder. Before the release, the header must be removed as the classes will be in the root of the generated JAR.