| /* |
| * 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.cassandra.thrift; |
| |
| |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| import java.net.ServerSocket; |
| import java.net.Socket; |
| import java.net.SocketException; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.thrift.transport.TServerTransport; |
| import org.apache.thrift.transport.TTransportException; |
| |
| /** |
| * Extends Thrift's TServerSocket to allow customization of various desirable TCP properties. |
| */ |
| public class TCustomServerSocket extends TServerTransport |
| { |
| |
| private static final Logger logger = LoggerFactory.getLogger(TCustomServerSocket.class); |
| |
| /** |
| * Underlying serversocket object |
| */ |
| private ServerSocket serverSocket = null; |
| |
| private final boolean keepAlive; |
| private final Integer sendBufferSize; |
| private final Integer recvBufferSize; |
| |
| /** |
| * Allows fine-tuning of the server socket including keep-alive, reuse of addresses, send and receive buffer sizes. |
| * |
| * @param bindAddr |
| * @param keepAlive |
| * @param sendBufferSize |
| * @param recvBufferSize |
| * @throws TTransportException |
| */ |
| public TCustomServerSocket(InetSocketAddress bindAddr, boolean keepAlive, Integer sendBufferSize, |
| Integer recvBufferSize, Integer listenBacklog) |
| throws TTransportException |
| { |
| try |
| { |
| // Make server socket |
| serverSocket = new ServerSocket(); |
| // Prevent 2MSL delay problem on server restarts |
| serverSocket.setReuseAddress(true); |
| // Bind to listening port |
| serverSocket.bind(bindAddr, listenBacklog); |
| } |
| catch (IOException ioe) |
| { |
| serverSocket = null; |
| throw new TTransportException("Could not create ServerSocket on address " + bindAddr + "."); |
| } |
| |
| this.keepAlive = keepAlive; |
| this.sendBufferSize = sendBufferSize; |
| this.recvBufferSize = recvBufferSize; |
| } |
| |
| public TCustomServerSocket(ServerSocket socket, boolean keepAlive, Integer sendBufferSize, Integer recvBufferSize) |
| { |
| this.serverSocket = socket; |
| this.keepAlive = keepAlive; |
| this.sendBufferSize = sendBufferSize; |
| this.recvBufferSize = recvBufferSize; |
| } |
| |
| @Override |
| @SuppressWarnings("resource") |
| protected TCustomSocket acceptImpl() throws TTransportException |
| { |
| |
| if (serverSocket == null) |
| throw new TTransportException(TTransportException.NOT_OPEN, "No underlying server socket."); |
| |
| TCustomSocket tsocket = null; |
| Socket socket = null; |
| try |
| { |
| socket = serverSocket.accept(); |
| tsocket = new TCustomSocket(socket); |
| tsocket.setTimeout(0); |
| } |
| catch (IOException iox) |
| { |
| throw new TTransportException(iox); |
| } |
| |
| try |
| { |
| socket.setKeepAlive(this.keepAlive); |
| } |
| catch (SocketException se) |
| { |
| logger.warn("Failed to set keep-alive on Thrift socket.", se); |
| } |
| |
| if (this.sendBufferSize != null) |
| { |
| try |
| { |
| socket.setSendBufferSize(this.sendBufferSize.intValue()); |
| } |
| catch (SocketException se) |
| { |
| logger.warn("Failed to set send buffer size on Thrift socket.", se); |
| } |
| } |
| |
| if (this.recvBufferSize != null) |
| { |
| try |
| { |
| socket.setReceiveBufferSize(this.recvBufferSize.intValue()); |
| } |
| catch (SocketException se) |
| { |
| logger.warn("Failed to set receive buffer size on Thrift socket.", se); |
| } |
| } |
| |
| return tsocket; |
| } |
| |
| @Override |
| public void listen() throws TTransportException |
| { |
| // Make sure not to block on accept |
| if (serverSocket != null) |
| { |
| try |
| { |
| serverSocket.setSoTimeout(100); |
| } |
| catch (SocketException sx) |
| { |
| logger.error("Could not set socket timeout.", sx); |
| } |
| } |
| } |
| |
| @Override |
| public void close() |
| { |
| if (serverSocket != null) |
| { |
| try |
| { |
| serverSocket.close(); |
| } |
| catch (IOException iox) |
| { |
| logger.warn("Could not close server socket.", iox); |
| } |
| serverSocket = null; |
| } |
| } |
| |
| @Override |
| public void interrupt() |
| { |
| // The thread-safeness of this is dubious, but Java documentation suggests |
| // that it is safe to do this from a different thread context |
| close(); |
| } |
| } |