[2.5.4] OSGI Core overrides - possible?
Nathan Keiter
I was excited to see this was possible. So I followed the example to try overriding the EmailFactory class with our version.
It seems the bundleContext is null? What’s going on?
dotcms.log:
[30/01/15 14:16:34:744 EST] INFO osgi.Activator: Got to start( BundleContext )
[30/01/15 14:16:34:799 EST] ERROR osgi.Activator: Error injecting context for overriding
java.lang.NullPointerException
at com.dotmarketing.osgi.UrlOsgiClassLoader.<init>(UrlOsgiClassLoader.java:46)
at com.dotmarketing.osgi.GenericBundleActivator.injectContext(GenericBundleActivator.java:274)
at com.dotmarketing.osgi.GenericBundleActivator.injectContext(GenericBundleActivator.java:241)
at com.dotmarketing.osgi.GenericBundleActivator.publishBundleServices(GenericBundleActivator.java:124)
at edu.gettysburg.nkeiter.override.com.dotmarketing.factories.osgi.Activator.start(Activator.java:17)
at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:645)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2146)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2064)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:955)
at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:1175)
at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:1153)
at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:458)
at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:263)
wrapper.log:
INFO | jvm 1 | 2015/01/30 14:21:03 | ERROR: Bundle Override of com.dotmarketing.factories.EmailFactory [45] Error starting/stopping bundle. (org.osgi.framework.BundleException: Activator start error in bundle Override of com.dotmarketing.factories.EmailFactory [45].)
INFO | jvm 1 | 2015/01/30 14:21:03 | java.lang.NullPointerException
INFO | jvm 1 | 2015/01/30 14:21:03 | at com.dotmarketing.osgi.UrlOsgiClassLoader.<init>(UrlOsgiClassLoader.java:46)
INFO | jvm 1 | 2015/01/30 14:21:03 | at com.dotmarketing.osgi.GenericBundleActivator.injectContext(GenericBundleActivator.java:274)
INFO | jvm 1 | 2015/01/30 14:21:03 | at com.dotmarketing.osgi.GenericBundleActivator.injectContext(GenericBundleActivator.java:241)
INFO | jvm 1 | 2015/01/30 14:21:03 | at com.dotmarketing.osgi.GenericBundleActivator.publishBundleServices(GenericBundleActivator.java:124)
INFO | jvm 1 | 2015/01/30 14:21:03 | at edu.gettysburg.nkeiter.override.com.dotmarketing.factories.osgi.Activator.start(Activator.java:17)
INFO | jvm 1 | 2015/01/30 14:21:03 | at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:645)
INFO | jvm 1 | 2015/01/30 14:21:03 | at org.apache.felix.framework.Felix.activateBundle(Felix.java:2146)
INFO | jvm 1 | 2015/01/30 14:21:03 | at org.apache.felix.framework.Felix.startBundle(Felix.java:2064)
INFO | jvm 1 | 2015/01/30 14:21:03 | at org.apache.felix.framework.Felix.setBundleStartLevel(Felix.java:1483)
INFO | jvm 1 | 2015/01/30 14:21:03 | at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:334)
INFO | jvm 1 | 2015/01/30 14:21:03 | at java.lang.Thread.run(Thread.java:744)
Nathan
Nathan I. Keiter
Lead Network Applications Programmer
DataSystems
Gettysburg College
Campus Box 2453
Measure your success by the level of service you provide.
Si hoc legere scis nimium eruditionis habes.
Nathan Keiter
I have tried this with a total of 3 simple single class override plugins. Same result…
Nathan
Nathan I. Keiter
Lead Network Applications Programmer
DataSystems
Gettysburg College
Campus Box 2453
Measure your success by the level of service you provide.
Si hoc legere scis nimium eruditionis habes.
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Nathan Keiter
Here’s a Gist example of one of these: https://gist.github.com/nkeiter/58b44710d621c45c4df8
It seems publishBundleServices( BundleContext ) is encountering a null value for the context.
But this is what the provided example is doing? So why isn’t it working?
Nathan Keiter
For what it’s worth… replacing publishBundleServices( BundleContext ) with initializeServices( BundleContext ) seems to work just fine.
I guess the provided example is wrong.
dotcms.log:
[30/01/15 15:30:58:515 EST] INFO osgi.Activator: Got to start( BundleContext )
[30/01/15 15:30:58:526 EST] INFO factories.EmailFactory: EmailFactory.verifyOverride() Override of EmailFactory.java verified!
Nathan Keiter
Here’s a Gist of the working example: https://gist.github.com/nkeiter/340479cf4194aee7eab3