| /* |
| * 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.gossip.transport; |
| |
| import com.codahale.metrics.MetricRegistry; |
| import org.apache.gossip.manager.AbstractActiveGossiper; |
| import org.apache.gossip.manager.GossipCore; |
| import org.apache.gossip.manager.GossipManager; |
| import org.apache.gossip.utils.ReflectionUtils; |
| import org.apache.log4j.Logger; |
| |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Manage the protcol threads (active and passive gossipers). |
| */ |
| public abstract class AbstractTransportManager implements TransportManager { |
| |
| public static final Logger LOGGER = Logger.getLogger(AbstractTransportManager.class); |
| |
| private final ExecutorService gossipThreadExecutor; |
| private final AbstractActiveGossiper activeGossipThread; |
| protected final GossipManager gossipManager; |
| protected final GossipCore gossipCore; |
| |
| public AbstractTransportManager(GossipManager gossipManager, GossipCore gossipCore) { |
| this.gossipManager = gossipManager; |
| this.gossipCore = gossipCore; |
| gossipThreadExecutor = Executors.newCachedThreadPool(); |
| activeGossipThread = ReflectionUtils.constructWithReflection( |
| gossipManager.getSettings().getActiveGossipClass(), |
| new Class<?>[]{ |
| GossipManager.class, GossipCore.class, MetricRegistry.class |
| }, |
| new Object[]{ |
| gossipManager, gossipCore, gossipManager.getRegistry() |
| }); |
| } |
| |
| // shut down threads etc. |
| @Override |
| public void shutdown() { |
| gossipThreadExecutor.shutdown(); |
| if (activeGossipThread != null) { |
| activeGossipThread.shutdown(); |
| } |
| try { |
| boolean result = gossipThreadExecutor.awaitTermination(10, TimeUnit.MILLISECONDS); |
| if (!result) { |
| // common when blocking patterns are used to read data from a socket. |
| LOGGER.warn("executor shutdown timed out"); |
| } |
| } catch (InterruptedException e) { |
| LOGGER.error(e); |
| } |
| gossipThreadExecutor.shutdownNow(); |
| } |
| |
| @Override |
| public void startActiveGossiper() { |
| activeGossipThread.init(); |
| } |
| |
| @Override |
| public abstract void startEndpoint(); |
| } |