| /* |
| * 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.aries.containers.marathon.impl; |
| |
| import java.util.Dictionary; |
| import java.util.Hashtable; |
| |
| import org.apache.aries.containers.ServiceManager; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.ServiceRegistration; |
| import org.osgi.service.cm.ConfigurationException; |
| import org.osgi.service.cm.ManagedService; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class MarathonConfigManagedService implements ManagedService { |
| private static final Logger LOG = LoggerFactory.getLogger(MarathonConfigManagedService.class); |
| |
| private final BundleContext bundleContext; |
| volatile String marathonURL; |
| volatile ServiceRegistration<ServiceManager> reg; |
| |
| MarathonConfigManagedService(BundleContext bc) { |
| bundleContext = bc; |
| } |
| |
| @Override |
| public void updated(Dictionary<String, ?> properties) throws ConfigurationException { |
| Object newURL = properties.get("marathon.url"); |
| if (!(newURL instanceof String)) { |
| LOG.error("marathon.url should be a String property {} - ignoring configuration", properties); |
| return; |
| } |
| |
| String marURL = (String) newURL; |
| marURL = marURL.trim(); |
| if (marURL.equals(marathonURL)) { |
| // Configuration didn't change |
| return; |
| } |
| |
| // The configuration has changed, unregister previous service |
| if (reg != null) |
| reg.unregister(); |
| |
| marathonURL = marURL; |
| ServiceManager cf = new MarathonServiceManager(marathonURL); |
| |
| Dictionary<String, Object> props = new Hashtable<>(); |
| props.put(ServiceManager.BINDING, "marathon"); |
| reg = bundleContext.registerService(ServiceManager.class, cf, props); |
| } |
| } |