/*
* 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 io.netty.channel.socket.nio;
import static io.netty.channel.Channels.fireChannelOpen;
import io.netty.channel.ChannelException;
import io.netty.channel.ChannelFactory;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.ChannelSink;
import io.netty.channel.socket.DatagramChannelConfig;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.NetworkInterface;
import java.nio.channels.DatagramChannel;
/**
* Provides an NIO based {@link io.netty.channel.socket.DatagramChannel}.
*/
final class NioDatagramChannel extends AbstractNioChannel<DatagramChannel>
implements io.netty.channel.socket.DatagramChannel {
/**
* The {@link DatagramChannelConfig}.
*/
private final NioDatagramChannelConfig config;
static NioDatagramChannel create(ChannelFactory factory,
ChannelPipeline pipeline, ChannelSink sink, NioDatagramWorker worker) {
NioDatagramChannel instance =
new NioDatagramChannel(factory, pipeline, sink, worker);
fireChannelOpen(instance);
return instance;
}
private NioDatagramChannel(final ChannelFactory factory,
final ChannelPipeline pipeline, final ChannelSink sink,
final NioDatagramWorker worker) {
super(null, factory, pipeline, sink, worker, openNonBlockingChannel());
config = new DefaultNioDatagramChannelConfig(channel.socket());
}
private static DatagramChannel openNonBlockingChannel() {
try {
final DatagramChannel channel = DatagramChannel.open();
channel.configureBlocking(false);
return channel;
} catch (final IOException e) {
throw new ChannelException("Failed to open a DatagramChannel.", e);
}
}
@Override
public boolean isBound() {
return isOpen() && channel.socket().isBound();
}
@Override
public boolean isConnected() {
return channel.isConnected();
}
@Override
protected boolean setClosed() {
return super.setClosed();
}
@Override
public NioDatagramChannelConfig getConfig() {
return config;
}
DatagramChannel getDatagramChannel() {
return channel;
}
@Override
public void joinGroup(InetAddress multicastAddress) {
throw new UnsupportedOperationException();
}
@Override
public void joinGroup(InetSocketAddress multicastAddress,
NetworkInterface networkInterface) {
throw new UnsupportedOperationException();
}
@Override
public void leaveGroup(InetAddress multicastAddress) {
throw new UnsupportedOperationException();
}
@Override
public void leaveGroup(InetSocketAddress multicastAddress,
NetworkInterface networkInterface) {
throw new UnsupportedOperationException();
}
@Override
InetSocketAddress getLocalSocketAddress() throws Exception {
return (InetSocketAddress) channel.socket().getLocalSocketAddress();
}
@Override
InetSocketAddress getRemoteSocketAddress() throws Exception {
return (InetSocketAddress) channel.socket().getRemoteSocketAddress();
}
}