| /* |
| * 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.ace.log.server.task; |
| |
| import java.util.Dictionary; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| import org.apache.ace.connectionfactory.ConnectionFactory; |
| import org.apache.ace.discovery.Discovery; |
| import org.apache.ace.log.LogSync; |
| import org.apache.ace.log.server.store.LogStore; |
| import org.apache.ace.log.server.task.LogSyncTask.Mode; |
| import org.apache.felix.dm.Component; |
| import org.apache.felix.dm.DependencyActivatorBase; |
| import org.apache.felix.dm.DependencyManager; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Constants; |
| import org.osgi.service.cm.ConfigurationException; |
| import org.osgi.service.cm.ManagedServiceFactory; |
| import org.osgi.service.log.LogService; |
| |
| public class Activator extends DependencyActivatorBase implements ManagedServiceFactory { |
| private static final String KEY_LOG_NAME = "name"; |
| private static final String KEY_MODE = "mode"; |
| private static final String KEY_MODE_LOWEST_IDS = "mode-lowest-ids"; |
| private static final String KEY_TARGETID = "tid"; |
| |
| private final Map<String, Component> m_instances = new HashMap<>(); |
| private volatile DependencyManager m_manager; |
| |
| @Override |
| public void init(BundleContext context, DependencyManager manager) throws Exception { |
| m_manager = manager; |
| Properties props = new Properties(); |
| props.put(Constants.SERVICE_PID, "org.apache.ace.log.server.task.factory"); |
| manager.add(createComponent() |
| .setInterface(ManagedServiceFactory.class.getName(), props) |
| .setImplementation(this) |
| ); |
| } |
| |
| @Override |
| public void destroy(BundleContext context, DependencyManager manager) throws Exception { |
| } |
| |
| public String getName() { |
| return "Log Sync Task Factory"; |
| } |
| |
| public synchronized void updated(String pid, Dictionary<String, ?> dict) throws ConfigurationException { |
| String name = (String) dict.get(KEY_LOG_NAME); |
| if ((name == null) || "".equals(name)) { |
| throw new ConfigurationException(KEY_LOG_NAME, "Log name has to be specified."); |
| } |
| Mode dataTransferMode = Mode.PUSH; |
| String modeValue = (String) dict.get(KEY_MODE); |
| if ("pull".equals(modeValue)) { |
| dataTransferMode = Mode.PULL; |
| } |
| else if ("pushpull".equals(modeValue)) { |
| dataTransferMode = Mode.PUSHPULL; |
| } |
| else if ("none".equals(modeValue)) { |
| dataTransferMode = Mode.NONE; |
| } |
| Mode lowestIDsMode = Mode.NONE; |
| modeValue = (String) dict.get(KEY_MODE_LOWEST_IDS); |
| if ("pull".equals(modeValue)) { |
| lowestIDsMode = Mode.PULL; |
| } |
| else if ("pushpull".equals(modeValue)) { |
| lowestIDsMode = Mode.PUSHPULL; |
| } |
| else if ("push".equals(modeValue)) { |
| lowestIDsMode = Mode.PUSH; |
| } |
| String targetID = (String) dict.get(KEY_TARGETID); |
| |
| Component oldComponent, newComponent; |
| |
| Properties props = new Properties(); |
| props.put(KEY_LOG_NAME, name); |
| props.put("taskName", LogSyncTask.class.getName()); |
| props.put("description", "Syncs log (name=" + name + ", mode=" + dataTransferMode.toString() + (targetID == null ? "" : ", targetID=" + targetID) + ") with a server."); |
| String filter = "(&(" + Constants.OBJECTCLASS + "=" + LogStore.class.getName() + ")(name=" + name + "))"; |
| LogSyncTask service = new LogSyncTask(name, name, dataTransferMode, lowestIDsMode, targetID); |
| newComponent = m_manager.createComponent() |
| .setInterface(new String[] { Runnable.class.getName(), LogSync.class.getName() }, props) |
| .setImplementation(service) |
| .add(createServiceDependency().setService(ConnectionFactory.class).setRequired(true)) |
| .add(createServiceDependency().setService(LogStore.class, filter).setRequired(true)) |
| .add(createServiceDependency().setService(Discovery.class).setRequired(true)) |
| .add(createServiceDependency().setService(LogService.class).setRequired(false)); |
| |
| synchronized (m_instances) { |
| oldComponent = m_instances.put(pid, newComponent); |
| } |
| if (oldComponent != null) { |
| m_manager.remove(oldComponent); |
| } |
| m_manager.add(newComponent); |
| } |
| |
| public void deleted(String pid) { |
| Component component; |
| synchronized (m_instances) { |
| component = m_instances.remove(pid); |
| } |
| if (component != null) { |
| m_manager.remove(component); |
| } |
| } |
| } |