| /* |
| * 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.geode.internal.memcached; |
| |
| import java.io.IOException; |
| import java.net.Socket; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.geode.LogWriter; |
| import org.apache.geode.annotations.internal.MakeNotStatic; |
| import org.apache.geode.cache.Cache; |
| import org.apache.geode.cache.CacheClosedException; |
| import org.apache.geode.internal.memcached.commands.ClientError; |
| import org.apache.geode.memcached.GemFireMemcachedServer; |
| import org.apache.geode.memcached.GemFireMemcachedServer.Protocol; |
| |
| /** |
| * One instance of ConnectionHandle is created for each client that connects to |
| * {@link GemFireMemcachedServer} and is responsible for reading requests and sending responses to |
| * this client. |
| * |
| * |
| * |
| */ |
| public class ConnectionHandler implements Runnable { |
| |
| private final Socket socket; |
| |
| private final Cache cache; |
| |
| private final Protocol protocol; |
| |
| @MakeNotStatic |
| private static LogWriter logger; |
| |
| public ConnectionHandler(Socket socket, Cache cache, Protocol protocol) { |
| this.socket = socket; |
| this.cache = cache; |
| this.protocol = protocol; |
| if (logger == null) { |
| logger = this.cache.getLogger(); |
| } |
| } |
| |
| @Override |
| public void run() { |
| RequestReader request = new RequestReader(this.socket, this.protocol); |
| while (!Thread.currentThread().isInterrupted()) { |
| try { |
| Command command = request.readCommand(); |
| if (logger.fineEnabled()) { |
| logger.fine("processing command:" + command); |
| } |
| ByteBuffer reply = |
| command.getCommandProcessor().processCommand(request, this.protocol, cache); |
| if (reply != null) { |
| request.sendReply(reply); |
| } |
| if (command == Command.QUIT || command == Command.QUITQ) { |
| socket.close(); |
| break; |
| } |
| } catch (ClientError e) { |
| request.sendException(e); |
| } catch (IllegalArgumentException e) { |
| // thrown by Command.valueOf() when there is no matching command |
| request.sendException(e); |
| } catch (CacheClosedException cc) { |
| Thread.currentThread().interrupt(); |
| } catch (IOException e) { |
| Thread.currentThread().interrupt(); |
| } |
| } |
| logger.fine("Connection handler " + Thread.currentThread().getName() + " terminating"); |
| } |
| |
| protected static LogWriter getLogger() { |
| return logger; |
| } |
| } |