| /* |
| * 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.karaf.example.config.listener; |
| |
| import org.osgi.framework.BundleActivator; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.ServiceRegistration; |
| import org.osgi.service.cm.ConfigurationEvent; |
| import org.osgi.service.cm.ConfigurationListener; |
| |
| public class Activator implements BundleActivator { |
| |
| private ServiceRegistration<ConfigurationListener> registration; |
| |
| @Override |
| public void start(BundleContext bundleContext) { |
| ConfigurationListener listener = event -> { |
| if (event.getType() == ConfigurationEvent.CM_DELETED) { |
| System.out.println("Configuration " + event.getPid() + " has been deleted"); |
| } |
| if (event.getType() == ConfigurationEvent.CM_UPDATED) { |
| System.out.println("Configuration " + event.getPid() + " has been updated"); |
| } |
| if (event.getType() == ConfigurationEvent.CM_LOCATION_CHANGED) { |
| System.out.println("Configuration " + event.getPid() + " location has been changed"); |
| } |
| }; |
| registration = bundleContext.registerService(ConfigurationListener.class, listener, null); |
| } |
| |
| @Override |
| public void stop(BundleContext bundleContext) { |
| if (registration != null) { |
| registration.unregister(); |
| } |
| } |
| |
| } |