4 Replies Latest reply: May 3, 2012 6:52 AM by ermag RSS

    How to use a custom Persistence Manager

    ermag

      I'm experimenting with implementing a custom Persistence Manager for CRX/CQ5. How the underlying implementation works is not important, the issue I'm having seems instead to be related to classloading or OSGi inside CQ5.

       

      I've implemented a custom Persistence Manager (implements org.apache.jackrabbit.core.persistence.PersistenceManager) and a custom FileSystem (implements org.apache.jackrabbit.core.fs.FileSystem).

       

      I've verified that both implementations function correctly with plain Apache Jackrabbit (version 2.4.0, the same version used internally by CQ5.5).

       

      I've packaged my implementation and all its dependencies as an OSGi bundle and installed it to CQ5.5. All dependencies as resolved and the bundle status in the OSGi console is "Active".

       

      I then followed these instructions for configuring the CQ 5.5 repository to use my PersistenceManager and FileSystem implementations:

      http://dev.day.com/docs/en/cq/current/core/administering/persistence_managers.html#The%20T ar%20Persistence%20Manager

       

      The configuration seems to be read just fine but I get the following exception when restarting CQ:

       

       

      23.04.2012 09:20:23.714 *ERROR* [FelixStartLevel] com.day.crx.sling.server [com.day.crx.sling.server.impl.jmx.ManagedRepository] 
      The activate method has thrown an exception (org.apache.jackrabbit.core.config.ConfigurationException: 
      Configured class com.example.XXFileSystem does not implement org.apache.jackrabbit.core.fs.FileSystem. Please fix the repository configuration.) org.apache.jackrabbit.core.config.ConfigurationException: Configured class com.example.XXFileSystem does not implement org.apache.jackrabbit.core.fs.FileSystem. Please fix the repository configuration.
          at org.apache.jackrabbit.core.config.BeanConfig.newInstance(BeanConfig.java:179)
          at org.apache.jackrabbit.core.config.RepositoryConfigurationParser$6.getFileSystem(RepositoryConfigurationParser.java:1077)
          at org.apache.jackrabbit.core.config.VersioningConfig.getFileSystem(VersioningConfig.java:94)
          at com.day.crx.core.CRXRepositoryImpl.createVersionManager(CRXRepositoryImpl.java:841)
          at org.apache.jackrabbit.core.RepositoryImpl.<init>(RepositoryImpl.java:305)
          at com.day.crx.core.CRXRepositoryImpl.<init>(CRXRepositoryImpl.java:283)
          at com.day.crx.core.CRXRepositoryImpl.create(CRXRepositoryImpl.java:258)
          at com.day.crx.core.CRXRepositoryImpl.create(CRXRepositoryImpl.java:243)
          at com.day.crx.sling.server.impl.jmx.ManagedRepository.activate(ManagedRepository.java:164)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
          at java.lang.reflect.Method.invoke(Method.java:597)
          at org.apache.felix.scr.impl.helper.BaseMethod.invokeMethod(BaseMethod.java:227)
          at org.apache.felix.scr.impl.helper.BaseMethod.access$500(BaseMethod.java:38)
          at org.apache.felix.scr.impl.helper.BaseMethod$Resolved.invoke(BaseMethod.java:591)
          at org.apache.felix.scr.impl.helper.BaseMethod.invoke(BaseMethod.java:472)
          at org.apache.felix.scr.impl.helper.ActivateMethod.invoke(ActivateMethod.java:146)
          at org.apache.felix.scr.impl.manager.ImmediateComponentManager.createImplementationObject(ImmediateComponentManager.java:226)
          at org.apache.felix.scr.impl.manager.ImmediateComponentManager.createComponent(ImmediateComponentManager.java:118)
          at org.apache.felix.scr.impl.manager.DelayedComponentManager.createRealComponent(DelayedComponentManager.java:95)
          at org.apache.felix.scr.impl.manager.AbstractComponentManager$Registered.getService(AbstractComponentManager.java:1296)
          at org.apache.felix.scr.impl.manager.DelayedComponentManager.getService(DelayedComponentManager.java:88)
          at org.apache.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(ServiceRegistrationImpl.java:310)
          at org.apache.felix.framework.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:221)
          at org.apache.felix.framework.ServiceRegistry.getService(ServiceRegistry.java:292)
          at org.apache.felix.framework.Felix.getService(Felix.java:3010)
          at org.apache.felix.framework.BundleContextImpl.getService(BundleContextImpl.java:329)
          at org.osgi.util.tracker.ServiceTracker.addingService(ServiceTracker.java:442)
          at org.apache.aries.jmx.whiteboard.Activator$MBeanTracker.addingService(Activator.java:101)
          at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:896)
          at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:261)
          at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:233)
          at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:840)
          at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:871)
          at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:733)
          at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:662)
          at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:3765)
          at org.apache.felix.framework.Felix.registerService(Felix.java:2877)
          at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:251)
          at org.apache.felix.scr.impl.manager.AbstractComponentManager.registerService(AbstractComponentManager.java:456)
          at org.apache.felix.scr.impl.manager.AbstractComponentManager.registerComponentService(AbstractComponentManager.java:508)
          at org.apache.felix.scr.impl.manager.AbstractComponentManager$Unsatisfied.activate(AbstractComponentManager.java:1157)
          at org.apache.felix.scr.impl.manager.AbstractComponentManager.activateInternal(AbstractComponentManager.java:334)
          at org.apache.felix.scr.impl.manager.AbstractComponentManager.enable(AbstractComponentManager.java:158)
          at org.apache.felix.scr.impl.config.ImmediateComponentHolder.enableComponents(ImmediateComponentHolder.java:313)
          at org.apache.felix.scr.impl.BundleComponentActivator.loadDescriptor(BundleComponentActivator.java:241)
          at org.apache.felix.scr.impl.BundleComponentActivator.initialize(BundleComponentActivator.java:147)
          at org.apache.felix.scr.impl.BundleComponentActivator.<init>(BundleComponentActivator.java:111)
          at org.apache.felix.scr.impl.Activator.loadComponents(Activator.java:274)
          at org.apache.felix.scr.impl.Activator.bundleChanged(Activator.java:192)
          at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:807)
          at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:729)
          at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:610)
          at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:3754)
          at org.apache.felix.framework.Felix.startBundle(Felix.java:1780)
          at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1156)
          at org.apache.felix.framework.StartLevelImpl.run(StartLevelImpl.java:266)
          at java.lang.Thread.run(Thread.java:662)
      

       

       

      Anyone have any idea how to get past this?

      My FileSystem class most certainly does implement org.apache.jackrabbit.core.fs.FileSystem, as verified by that it works just fine with Jackrabbit.

       

      I've also made sure that I use the exact same jackrabbit-core jar file in my bundle that is included in the com.day.crx.sling.server bundle.