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/*
* 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.thrift.transport;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketException;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Socket implementation of the TTransport interface. To be commented soon!
*
*/
public class TSocket extends TIOStreamTransport {
private static final Logger LOGGER = Logger.getLogger(TSocket.class.getName());
/**
* Wrapped Socket object
*/
private Socket socket_ = null;
/**
* Remote host
*/
private String host_ = null;
/**
* Remote port
*/
private int port_ = 0;
/**
* Socket timeout
*/
private int timeout_ = 0;
/**
* Constructor that takes an already created socket.
*
* @param socket Already created socket object
* @throws TTransportException if there is an error setting up the streams
*/
public TSocket(Socket socket) throws TTransportException {
socket_ = socket;
try {
socket_.setSoLinger(false, 0);
socket_.setTcpNoDelay(true);
} catch (SocketException sx) {
LOGGER.log(Level.WARNING, "Could not configure socket.", sx);
}
if (isOpen()) {
try {
inputStream_ = new BufferedInputStream(socket_.getInputStream(), 1024);
outputStream_ = new BufferedOutputStream(socket_.getOutputStream(), 1024);
} catch (IOException iox) {
close();
throw new TTransportException(TTransportException.NOT_OPEN, iox);
}
}
}
/**
* Creates a new unconnected socket that will connect to the given host
* on the given port.
*
* @param host Remote host
* @param port Remote port
*/
public TSocket(String host, int port) {
this(host, port, 0);
}
/**
* Creates a new unconnected socket that will connect to the given host
* on the given port.
*
* @param host Remote host
* @param port Remote port
* @param timeout Socket timeout
*/
public TSocket(String host, int port, int timeout) {
host_ = host;
port_ = port;
timeout_ = timeout;
initSocket();
}
/**
* Initializes the socket object
*/
private void initSocket() {
socket_ = new Socket();
try {
socket_.setSoLinger(false, 0);
socket_.setTcpNoDelay(true);
socket_.setSoTimeout(timeout_);
} catch (SocketException sx) {
LOGGER.log(Level.WARNING, "Could not configure socket.", sx);
}
}
/**
* Sets the socket timeout
*
* @param timeout Milliseconds timeout
*/
public void setTimeout(int timeout) {
timeout_ = timeout;
try {
socket_.setSoTimeout(timeout);
} catch (SocketException sx) {
LOGGER.log(Level.WARNING, "Could not set socket timeout.", sx);
}
}
/**
* Returns a reference to the underlying socket.
*/
public Socket getSocket() {
if (socket_ == null) {
initSocket();
}
return socket_;
}
/**
* Checks whether the socket is connected.
*/
public boolean isOpen() {
if (socket_ == null) {
return false;
}
return socket_.isConnected();
}
/**
* Connects the socket, creating a new socket object if necessary.
*/
public void open() throws TTransportException {
if (isOpen()) {
throw new TTransportException(TTransportException.ALREADY_OPEN, "Socket already connected.");
}
if (host_.length() == 0) {
throw new TTransportException(TTransportException.NOT_OPEN, "Cannot open null host.");
}
if (port_ <= 0) {
throw new TTransportException(TTransportException.NOT_OPEN, "Cannot open without port.");
}
if (socket_ == null) {
initSocket();
}
try {
socket_.connect(new InetSocketAddress(host_, port_));
inputStream_ = new BufferedInputStream(socket_.getInputStream(), 1024);
outputStream_ = new BufferedOutputStream(socket_.getOutputStream(), 1024);
} catch (IOException iox) {
close();
throw new TTransportException(TTransportException.NOT_OPEN, iox);
}
}
/**
* Closes the socket.
*/
public void close() {
// Close the underlying streams
super.close();
// Close the socket
if (socket_ != null) {
try {
socket_.close();
} catch (IOException iox) {
LOGGER.log(Level.WARNING, "Could not close socket.", iox);
}
socket_ = null;
}
}
}
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