/*
* 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.fastagi.internal;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.asteriskjava.fastagi.AgiException;
import org.asteriskjava.fastagi.AgiHangupException;
import org.asteriskjava.fastagi.AgiNetworkException;
import org.asteriskjava.fastagi.AgiRequest;
import org.asteriskjava.fastagi.reply.AgiReply;
import org.asteriskjava.util.SocketConnectionFacade;
/**
* Default implementation of the AgiReader implementation.
*
* @author srt
* @version $Id: FastAgiReader.java 1268 2009-03-14 12:30:01Z srt $
*/
class FastAgiReader implements AgiReader
{
private final SocketConnectionFacade socket;
FastAgiReader(SocketConnectionFacade socket)
{
this.socket = socket;
}
public AgiRequest readRequest() throws AgiException
{
AgiRequestImpl request;
String line;
List<String> lines;
lines = new ArrayList<String>();
try
{
while ((line = socket.readLine()) != null)
{
if (line.length() == 0)
{
break;
}
lines.add(line);
}
}
catch (IOException e)
{
throw new AgiNetworkException("Unable to read request from Asterisk: " + e.getMessage(), e);
}
request = new AgiRequestImpl(lines);
request.setLocalAddress(socket.getLocalAddress());
request.setLocalPort(socket.getLocalPort());
request.setRemoteAddress(socket.getRemoteAddress());
request.setRemotePort(socket.getRemotePort());
return request;
}
public AgiReply readReply() throws AgiException
{
AgiReply reply;
List<String> lines;
String line;
lines = new ArrayList<String>();
try
{
line = socket.readLine();
}
catch (IOException e)
{
// readline throws IOException if the connection has been closed
throw new AgiHangupException();
}
if (line == null)
{
throw new AgiHangupException();
}
// TODO Asterisk 1.6 sends "HANGUP" when the channel is hung up.
//System.out.println(line);
if (line.startsWith("HANGUP"))
{
if (line.length() > 6)
{
line = line.substring(6);
}
else
{
return readReply();
}
}
lines.add(line);
// read synopsis and usage if statuscode is 520
if (line.startsWith(Integer.toString(AgiReply.SC_INVALID_COMMAND_SYNTAX)))
{
try
{
while ((line = socket.readLine()) != null)
{
lines.add(line);
if (line.startsWith(Integer.toString(AgiReply.SC_INVALID_COMMAND_SYNTAX)))
{
break;
}
}
}
catch (IOException e)
{
throw new AgiNetworkException("Unable to read reply from Asterisk: " + e.getMessage(), e);
}
}
reply = new AgiReplyImpl(lines);
return reply;
}
}