| /* |
| * Copyright (c) 2011 jMonkeyEngine |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * * Neither the name of 'jMonkeyEngine' nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package com.jme3.network.kernel.udp; |
| |
| import com.jme3.network.kernel.Endpoint; |
| import com.jme3.network.kernel.Kernel; |
| import com.jme3.network.kernel.KernelException; |
| import java.io.IOException; |
| import java.net.DatagramPacket; |
| import java.net.DatagramSocket; |
| import java.net.SocketAddress; |
| import java.nio.ByteBuffer; |
| |
| |
| /** |
| * Endpoint implementation that encapsulates the |
| * UDP connection information for return messaging, |
| * identification of envelope sources, etc. |
| * |
| * @version $Revision: 8843 $ |
| * @author Paul Speed |
| */ |
| public class UdpEndpoint implements Endpoint |
| { |
| private long id; |
| private SocketAddress address; |
| private DatagramSocket socket; |
| private UdpKernel kernel; |
| private boolean connected = true; // it's connectionless but we track logical state |
| |
| public UdpEndpoint( UdpKernel kernel, long id, SocketAddress address, DatagramSocket socket ) |
| { |
| this.id = id; |
| this.address = address; |
| this.socket = socket; |
| this.kernel = kernel; |
| } |
| |
| public Kernel getKernel() |
| { |
| return kernel; |
| } |
| |
| protected SocketAddress getRemoteAddress() |
| { |
| return address; |
| } |
| |
| public void close() |
| { |
| close( false ); |
| } |
| |
| public void close( boolean flush ) |
| { |
| // No real reason to flush UDP traffic yet... especially |
| // when considering that the outbound UDP isn't even |
| // queued. |
| |
| try { |
| kernel.closeEndpoint(this); |
| connected = false; |
| } catch( IOException e ) { |
| throw new KernelException( "Error closing endpoint for socket:" + socket, e ); |
| } |
| } |
| |
| public long getId() |
| { |
| return id; |
| } |
| |
| public String getAddress() |
| { |
| return String.valueOf(address); |
| } |
| |
| public boolean isConnected() |
| { |
| // The socket is always unconnected anyway so we track our |
| // own logical state for the kernel's benefit. |
| return connected; |
| } |
| |
| public void send( ByteBuffer data ) |
| { |
| if( !isConnected() ) { |
| throw new KernelException( "Endpoint is not connected:" + this ); |
| } |
| |
| |
| try { |
| DatagramPacket p = new DatagramPacket( data.array(), data.position(), |
| data.remaining(), address ); |
| |
| // Just queue it up for the kernel threads to write |
| // out |
| kernel.enqueueWrite( this, p ); |
| |
| //socket.send(p); |
| } catch( IOException e ) { |
| throw new KernelException( "Error sending datagram to:" + address, e ); |
| } |
| } |
| |
| public String toString() |
| { |
| return "UdpEndpoint[" + id + ", " + address + "]"; |
| } |
| } |