/*
* Copyright 2011 The Netty Project
*
* The Netty Project 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.jboss.netty.channel.socket.oio;
import static org.jboss.netty.channel.Channels.*;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.MulticastSocket;
import java.net.NetworkInterface;
import java.net.SocketException;
import org.jboss.netty.channel.ChannelException;
import org.jboss.netty.channel.ChannelFactory;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelSink;
import org.jboss.netty.channel.socket.DatagramChannel;
import org.jboss.netty.channel.socket.DatagramChannelConfig;
import org.jboss.netty.channel.socket.DefaultDatagramChannelConfig;
final class OioDatagramChannel extends AbstractOioChannel
implements DatagramChannel {
final MulticastSocket socket;
private final DatagramChannelConfig config;
OioDatagramChannel(
ChannelFactory factory,
ChannelPipeline pipeline,
ChannelSink sink) {
super(null, factory, pipeline, sink);
try {
socket = new MulticastSocket(null);
} catch (IOException e) {
throw new ChannelException("Failed to open a datagram socket.", e);
}
try {
socket.setSoTimeout(10);
socket.setBroadcast(false);
} catch (SocketException e) {
throw new ChannelException(
"Failed to configure the datagram socket timeout.", e);
}
config = new DefaultDatagramChannelConfig(socket);
fireChannelOpen(this);
}
public DatagramChannelConfig getConfig() {
return config;
}
public void joinGroup(InetAddress multicastAddress) {
ensureBound();
try {
socket.joinGroup(multicastAddress);
} catch (IOException e) {
throw new ChannelException(e);
}
}
public void joinGroup(
InetSocketAddress multicastAddress, NetworkInterface networkInterface) {
ensureBound();
try {
socket.joinGroup(multicastAddress, networkInterface);
} catch (IOException e) {
throw new ChannelException(e);
}
}
private void ensureBound() {
if (!isBound()) {
throw new IllegalStateException(
DatagramChannel.class.getName() +
" must be bound to join a group.");
}
}
public void leaveGroup(InetAddress multicastAddress) {
try {
socket.leaveGroup(multicastAddress);
} catch (IOException e) {
throw new ChannelException(e);
}
}
public void leaveGroup(
InetSocketAddress multicastAddress, NetworkInterface networkInterface) {
try {
socket.leaveGroup(multicastAddress, networkInterface);
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
boolean isSocketBound() {
return socket.isBound();
}
@Override
boolean isSocketConnected() {
return socket.isConnected();
}
@Override
InetSocketAddress getLocalSocketAddress() throws Exception {
return (InetSocketAddress) socket.getLocalSocketAddress();
}
@Override
InetSocketAddress getRemoteSocketAddress() throws Exception {
return (InetSocketAddress) socket.getRemoteSocketAddress();
}
@Override
void closeSocket() throws IOException {
socket.close();
}
@Override
boolean isSocketClosed() {
return socket.isClosed();
}
}