/*
Milenia Grafter Server
Copyright (c) 2007-2008 by Milan Toth. All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package com.milgra.server;
/**
SocketController class
@mail milgra@milgra.com
@author Milan Toth
@version 20080315
Tasks of ScoketController
- Initialize encoders
- Control data flow of encoders
**/
import java.io.IOException;
import java.nio.channels.SocketChannel;
import java.util.ArrayList;
import com.milgra.server.encoder.RtmpHsa;
import com.milgra.server.encoder.RtmpHsp;
import com.milgra.server.encoder.RtmpEncoder;
import com.milgra.server.encoder.RtmpDecoder;
public class SocketController extends OProcess
{
// starting read and write values ( rtmp handshake by default )
public long bytesIn = 3073;
public long bytesOut = 3073;
// state indicators
// closed - controller is closed, no more data in/out
// closeInited - we have to close in two steps
// closeSwitch - second close step flag
public boolean closed;
public boolean closeSwitch;
public boolean closeInited;
// encoders
// hsa - active handshake encoder
// hsp - passive handshake encoder
public RtmpHsa hsa;
public RtmpHsp hsp;
public OProcess encoder;
public OProcess decoder;
public RtmpEncoder rtmpe;
public RtmpDecoder rtmpd;
public SocketChannel socket;
public ClientController client;
// data containers
public ArrayList < RtmpPacket > flvList;
public ArrayList < RtmpPacket > dataList;
public ArrayList < RtmpPacket > outgoingList;
/**
* SocketController constructor
* @param clientX parent clientcontroller
*/
public SocketController ( ClientController clientX )
{
// System.out.println( System.currentTimeMillis( ) + " " + clientX.id + " SocketController.construct" );
client = clientX;
hsa = new RtmpHsa( this );
hsp = new RtmpHsp( this );
rtmpe = new RtmpEncoder( this );
rtmpd = new RtmpDecoder( this );
closed = false;
closeInited = false;
closeSwitch = false;
flvList = new ArrayList < RtmpPacket > ( );
dataList = new ArrayList < RtmpPacket > ( );
outgoingList = new ArrayList < RtmpPacket > ( );
}
/**
* Closes socketController
* @param messageX message
*/
public void close ( String messageX )
{
// System.out.println( System.currentTimeMillis( ) + " " + client.id + " SocketController.close " + messageX );
if ( !closed )
{
try
{
closed = true;
if ( socket != null ) socket.close( );
if ( !client.closed ) client.close( );
}
catch ( IOException exception ) { System.out.println( Library.CLOSEX + exception.getMessage( ) ); }
}
}
/**
* Connects controller to a socket channel
* @param socketX SocketChannel
* @param modeX client mode
*/
public void connect ( SocketChannel socketX , String modeX )
{
// System.out.println( System.currentTimeMillis( ) + " " + client.id + " SocketController.connect " + socketX + " " + modeX );
socket = socketX;
hsa.socket = socketX;
hsp.socket = socketX;
rtmpe.socket = socketX;
rtmpd.socket = socketX;
// set handshake encoder
encoder = modeX.equals( "active" ) ? hsa : hsp;
decoder = modeX.equals( "active" ) ? hsa : hsp;
}
/**
* Starts rtmp communication, after handshake done
*/
public void startCommunication ( )
{
// System.out.println( System.currentTimeMillis( ) + " " + client.id + " SocketController.startCommunication" );
// set encoders
encoder = rtmpe;
decoder = rtmpd;
// close handshakers
hsa.close( );
hsp.close( );
// cleanup
hsa = null;
hsp = null;
}
/**
* Steps one in serialization/deserialization
*/
public void step ( )
{
// System.out.println( System.currentTimeMillis( ) + " " + client.id + " SocketController.step " + bytesIn );
// packet exchange
synchronized ( flvList ) { rtmpd.giveFlvPackets( flvList ); }
synchronized ( dataList ) { rtmpd.giveDataPackets( dataList ); }
synchronized ( outgoingList ) { rtmpe.takePackets( outgoingList ); }
// encoder stepping
decoder.step( );
encoder.step( );
// do we have to close?
if ( closeInited )
{
// waiting one step
if ( closeSwitch ) close( "Closed by application." );
else closeSwitch = true;
}
}
/**
* Takes packets
* @param packetsX rtmp packet
*/
public void takePackets ( ArrayList < RtmpPacket > packetsX )
{
// System.out.println( System.currentTimeMillis() + " " + client.id + " SocketController.takePackets " + packetsX.size( ) );
synchronized ( outgoingList )
{
outgoingList.addAll( packetsX );
packetsX.clear( );
}
}
/**
* returns flv packets
* @return
*/
public void giveFlvPackets ( ArrayList < RtmpPacket > packetsX )
{
// System.out.println( System.currentTimeMillis( ) + " " + client.id + " SocketController.getflvPackets " + flvList.size() );
synchronized ( flvList )
{
packetsX.clear( );
packetsX.addAll( flvList );
flvList.clear( );
}
}
/**
* Returns data packets
* @return
*/
public void giveDataPackets ( ArrayList < RtmpPacket > packetsX )
{
// System.out.println( System.currentTimeMillis( ) + " " + client.id + " SocketController.getDataPackets " + dataList.size() );
synchronized ( dataList )
{
packetsX.clear( );
packetsX.addAll( dataList );
dataList.clear( );
}
}
}