| /** |
| * 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.hadoop.hdfs.net; |
| |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| import java.net.ServerSocket; |
| import java.net.SocketTimeoutException; |
| import java.nio.channels.ServerSocketChannel; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.hdfs.DFSUtilClient; |
| import org.apache.hadoop.hdfs.server.datanode.SecureDataNodeStarter.SecureResources; |
| import org.apache.hadoop.ipc.Server; |
| |
| @InterfaceAudience.Private |
| public class TcpPeerServer implements PeerServer { |
| static final Log LOG = LogFactory.getLog(TcpPeerServer.class); |
| |
| private final ServerSocket serverSocket; |
| |
| /** |
| * Create a non-secure TcpPeerServer. |
| * |
| * @param socketWriteTimeout The Socket write timeout in ms. |
| * @param bindAddr The address to bind to. |
| * @param backlogLength The length of the tcp accept backlog |
| * @throws IOException |
| */ |
| public TcpPeerServer(int socketWriteTimeout, |
| InetSocketAddress bindAddr, |
| int backlogLength) throws IOException { |
| this.serverSocket = (socketWriteTimeout > 0) ? |
| ServerSocketChannel.open().socket() : new ServerSocket(); |
| Server.bind(serverSocket, bindAddr, backlogLength); |
| } |
| |
| /** |
| * Create a secure TcpPeerServer. |
| * |
| * @param secureResources Security resources. |
| */ |
| public TcpPeerServer(SecureResources secureResources) { |
| this.serverSocket = secureResources.getStreamingSocket(); |
| } |
| |
| /** |
| * @return the IP address which this TcpPeerServer is listening on. |
| */ |
| public InetSocketAddress getStreamingAddr() { |
| return new InetSocketAddress( |
| serverSocket.getInetAddress().getHostAddress(), |
| serverSocket.getLocalPort()); |
| } |
| |
| @Override |
| public void setReceiveBufferSize(int size) throws IOException { |
| this.serverSocket.setReceiveBufferSize(size); |
| } |
| |
| @Override |
| public int getReceiveBufferSize() throws IOException { |
| return this.serverSocket.getReceiveBufferSize(); |
| } |
| |
| @Override |
| public Peer accept() throws IOException, SocketTimeoutException { |
| Peer peer = DFSUtilClient.peerFromSocket(serverSocket.accept()); |
| return peer; |
| } |
| |
| @Override |
| public String getListeningString() { |
| return serverSocket.getLocalSocketAddress().toString(); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| try { |
| serverSocket.close(); |
| } catch(IOException e) { |
| LOG.error("error closing TcpPeerServer: ", e); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "TcpPeerServer(" + getListeningString() + ")"; |
| } |
| } |