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The free Java library for Asterisk PBX integration.
/*
* Copyright 2004-2006 Stefan Reuter
*
* Licensed 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.asteriskjava.util.internal;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.util.Scanner;
import java.util.NoSuchElementException;
import java.util.regex.Pattern;
import javax.net.SocketFactory;
import javax.net.ssl.SSLSocketFactory;
import org.asteriskjava.util.SocketConnectionFacade;
/**
* Default implementation of the SocketConnectionFacade interface using java.io.
*
* @author srt
* @version $Id: SocketConnectionFacadeImpl.java 1377 2009-10-17 03:24:49Z srt $
*/
public class SocketConnectionFacadeImpl implements SocketConnectionFacade
{
static final Pattern CRNL_PATTERN = Pattern.compile("\r\n");
static final Pattern NL_PATTERN = Pattern.compile("\n");
private Socket socket;
private Scanner scanner;
private BufferedWriter writer;
private Trace trace;
/**
* Creates a new instance for use with the Manager API that uses CRNL ("\r\n") as line delimiter.
*
* @param host the foreign host to connect to.
* @param port the foreign port to connect to.
* @param ssl true
to use SSL, false
otherwise.
* @param timeout 0 incidcates default
* @param readTimeout see {@link Socket#setSoTimeout(int)}
* @throws IOException if the connection cannot be established.
*/
public SocketConnectionFacadeImpl(String host, int port, boolean ssl, int timeout, int readTimeout) throws IOException
{
Socket socket;
if (ssl)
{
socket = SSLSocketFactory.getDefault().createSocket();
}
else
{
socket = SocketFactory.getDefault().createSocket();
}
socket.setSoTimeout(readTimeout);
socket.connect(new InetSocketAddress(host, port), timeout);
initialize(socket, CRNL_PATTERN);
if (System.getProperty(Trace.TRACE_PROPERTY, "false").equalsIgnoreCase("true"))
{
trace = new FileTrace(socket);
}
}
/**
* Creates a new instance for use with FastAGI that uses NL ("\n") as line delimiter.
*
* @param socket the underlying socket.
* @throws IOException if the connection cannot be initialized.
*/
SocketConnectionFacadeImpl(Socket socket) throws IOException
{
initialize(socket, NL_PATTERN);
}
private void initialize(Socket socket, Pattern pattern) throws IOException
{
this.socket = socket;
InputStream inputStream = socket.getInputStream();
OutputStream outputStream = socket.getOutputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
this.scanner = new Scanner(reader);
this.scanner.useDelimiter(pattern);
this.writer = new BufferedWriter(new OutputStreamWriter(outputStream));
}
public String readLine() throws IOException
{
String line;
try
{
line = scanner.next();
}
catch (IllegalStateException e)
{
if (scanner.ioException() != null)
{
throw scanner.ioException();
}
else
{
// throw new IOException("No more lines available", e); // JDK6
throw new IOException("No more lines available: " + e.getMessage());
}
}
catch (NoSuchElementException e)
{
if (scanner.ioException() != null)
{
throw scanner.ioException();
}
else
{
// throw new IOException("No more lines available", e); // JDK6
throw new IOException("No more lines available: " + e.getMessage());
}
}
if (trace != null)
{
trace.received(line);
}
return line;
}
public void write(String s) throws IOException
{
writer.write(s);
if (trace != null)
{
trace.sent(s);
}
}
public void flush() throws IOException
{
writer.flush();
}
public void close() throws IOException
{
socket.close();
scanner.close();
}
public boolean isConnected()
{
return socket.isConnected();
}
public InetAddress getLocalAddress()
{
return socket.getLocalAddress();
}
public int getLocalPort()
{
return socket.getLocalPort();
}
public InetAddress getRemoteAddress()
{
return socket.getInetAddress();
}
public int getRemotePort()
{
return socket.getPort();
}
}