| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.felix.metatype.internal; |
| |
| |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.metatype.MetaTypeProvider; |
| import org.osgi.util.tracker.ServiceTracker; |
| |
| |
| public class ManagedServiceTracker extends ServiceTracker |
| { |
| |
| static final String MANAGED_SERVICE = "org.osgi.service.cm.ManagedService"; |
| |
| static final String MANAGED_SERVICE_FACTORY = "org.osgi.service.cm.ManagedServiceFactory"; |
| |
| private static final String FILTER = "(|(objectClass=" + MANAGED_SERVICE + ")(objectClass=" |
| + MANAGED_SERVICE_FACTORY + "))"; |
| |
| private final MetaTypeServiceImpl mts; |
| |
| |
| public ManagedServiceTracker( BundleContext bundleContext, MetaTypeServiceImpl mts ) throws InvalidSyntaxException |
| { |
| super( bundleContext, bundleContext.createFilter( FILTER ), null ); |
| |
| this.mts = mts; |
| } |
| |
| |
| public Object addingService( ServiceReference reference ) |
| { |
| Object service = this.context.getService( reference ); |
| if ( service instanceof MetaTypeProvider ) |
| { |
| final ManagedServiceHolder holder = new ManagedServiceHolder( reference, ( MetaTypeProvider ) service ); |
| mts.addService( holder ); |
| return holder; |
| } |
| |
| // not a MetaTypeProvider implementation, don't track |
| this.context.ungetService( reference ); |
| return null; |
| } |
| |
| |
| public void modifiedService( ServiceReference reference, Object service ) |
| { |
| ( ( ManagedServiceHolder ) service ).update( this.mts ); |
| } |
| |
| |
| public void removedService( ServiceReference reference, Object service ) |
| { |
| mts.removeService( ( ManagedServiceHolder ) service ); |
| this.context.ungetService( reference ); |
| } |
| } |