/*
* Copyright 2012 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.udt.nio;
import com.barchart.udt.SocketUDT;
import com.barchart.udt.TypeUDT;
import com.barchart.udt.nio.ChannelUDT;
import com.barchart.udt.nio.KindUDT;
import com.barchart.udt.nio.RendezvousChannelUDT;
import com.barchart.udt.nio.SelectorProviderUDT;
import com.barchart.udt.nio.ServerSocketChannelUDT;
import com.barchart.udt.nio.SocketChannelUDT;
import io.netty.bootstrap.ChannelFactory;
import io.netty.channel.Channel;
import io.netty.channel.ChannelException;
import io.netty.channel.udt.UdtServerChannel;
import io.netty.channel.udt.UdtChannel;
import java.io.IOException;
import java.nio.channels.spi.SelectorProvider;
/**
* UDT NIO components provider:
* <p>
* Provides {@link ChannelFactory} for UDT channels.
* <p>
* Provides {@link SelectorProvider} for UDT channels.
*/
public final class NioUdtProvider<T extends UdtChannel> implements ChannelFactory<T> {
/**
* {@link ChannelFactory} for UDT Byte Acceptor. See {@link TypeUDT#STREAM}
* and {@link KindUDT#ACCEPTOR}.
*/
public static final ChannelFactory<UdtServerChannel> BYTE_ACCEPTOR = new NioUdtProvider<UdtServerChannel>(
TypeUDT.STREAM, KindUDT.ACCEPTOR);
/**
* {@link ChannelFactory} for UDT Byte Connector. See {@link TypeUDT#STREAM}
* and {@link KindUDT#CONNECTOR}.
*/
public static final ChannelFactory<UdtChannel> BYTE_CONNECTOR = new NioUdtProvider<UdtChannel>(
TypeUDT.STREAM, KindUDT.CONNECTOR);
/**
* {@link SelectorProvider} for UDT Byte channels. See
* {@link TypeUDT#STREAM}.
*/
public static final SelectorProvider BYTE_PROVIDER = SelectorProviderUDT.STREAM;
/**
* {@link ChannelFactory} for UDT Byte Rendezvous. See
* {@link TypeUDT#STREAM} and {@link KindUDT#RENDEZVOUS}.
*/
public static final ChannelFactory<UdtChannel> BYTE_RENDEZVOUS = new NioUdtProvider<UdtChannel>(
TypeUDT.STREAM, KindUDT.RENDEZVOUS);
/**
* {@link ChannelFactory} for UDT Message Acceptor. See
* {@link TypeUDT#DATAGRAM} and {@link KindUDT#ACCEPTOR}.
*/
public static final ChannelFactory<UdtServerChannel> MESSAGE_ACCEPTOR = new NioUdtProvider<UdtServerChannel>(
TypeUDT.DATAGRAM, KindUDT.ACCEPTOR);
/**
* {@link ChannelFactory} for UDT Message Connector. See
* {@link TypeUDT#DATAGRAM} and {@link KindUDT#CONNECTOR}.
*/
public static final ChannelFactory<UdtChannel> MESSAGE_CONNECTOR = new NioUdtProvider<UdtChannel>(
TypeUDT.DATAGRAM, KindUDT.CONNECTOR);
/**
* {@link SelectorProvider} for UDT Message channels. See
* {@link TypeUDT#DATAGRAM}.
*/
public static final SelectorProvider MESSAGE_PROVIDER = SelectorProviderUDT.DATAGRAM;
/**
* {@link ChannelFactory} for UDT Message Rendezvous. See
* {@link TypeUDT#DATAGRAM} and {@link KindUDT#RENDEZVOUS}.
*/
public static final ChannelFactory<UdtChannel> MESSAGE_RENDEZVOUS = new NioUdtProvider<UdtChannel>(
TypeUDT.DATAGRAM, KindUDT.RENDEZVOUS);
/**
* Expose underlying {@link ChannelUDT} for debugging and monitoring.
* <p>
* @return underlying {@link ChannelUDT} or null, if parameter is not
* {@link UdtChannel}
*/
public static ChannelUDT channelUDT(final Channel channel) {
// bytes
if (channel instanceof NioUdtByteAcceptorChannel) {
return ((NioUdtByteAcceptorChannel) channel).javaChannel();
}
if (channel instanceof NioUdtByteConnectorChannel) {
return ((NioUdtByteConnectorChannel) channel).javaChannel();
}
if (channel instanceof NioUdtByteRendezvousChannel) {
return ((NioUdtByteRendezvousChannel) channel).javaChannel();
}
// message
if (channel instanceof NioUdtMessageAcceptorChannel) {
return ((NioUdtMessageAcceptorChannel) channel).javaChannel();
}
if (channel instanceof NioUdtMessageConnectorChannel) {
return ((NioUdtMessageConnectorChannel) channel).javaChannel();
}
if (channel instanceof NioUdtMessageRendezvousChannel) {
return ((NioUdtMessageRendezvousChannel) channel).javaChannel();
}
return null;
}
/**
* Convenience factory for {@link KindUDT#ACCEPTOR} channels.
*/
static ServerSocketChannelUDT newAcceptorChannelUDT(
final TypeUDT type) {
try {
return SelectorProviderUDT.from(type).openServerSocketChannel();
} catch (final IOException e) {
throw new ChannelException("failed to open a server socket channel", e);
}
}
/**
* Convenience factory for {@link KindUDT#CONNECTOR} channels.
*/
static SocketChannelUDT newConnectorChannelUDT(final TypeUDT type) {
try {
return SelectorProviderUDT.from(type).openSocketChannel();
} catch (final IOException e) {
throw new ChannelException("failed to open a socket channel", e);
}
}
/**
* Convenience factory for {@link KindUDT#RENDEZVOUS} channels.
*/
static RendezvousChannelUDT newRendezvousChannelUDT(
final TypeUDT type) {
try {
return SelectorProviderUDT.from(type).openRendezvousChannel();
} catch (final IOException e) {
throw new ChannelException("failed to open a rendezvous channel", e);
}
}
/**
* Expose underlying {@link SocketUDT} for debugging and monitoring.
* <p>
* @return underlying {@link SocketUDT} or null, if parameter is not
* {@link UdtChannel}
*/
public static SocketUDT socketUDT(final Channel channel) {
final ChannelUDT channelUDT = channelUDT(channel);
if (channelUDT == null) {
return null;
} else {
return channelUDT.socketUDT();
}
}
private final KindUDT kind;
private final TypeUDT type;
/**
* {@link ChannelFactory} for given {@link TypeUDT} and {@link KindUDT}
*/
private NioUdtProvider(final TypeUDT type, final KindUDT kind) {
this.type = type;
this.kind = kind;
}
/**
* UDT Channel Kind. See {@link KindUDT}
*/
public KindUDT kind() {
return kind;
}
/**
* Produce new {@link UdtChannel} based on factory {@link #kind()} and
* {@link #type()}
*/
@SuppressWarnings("unchecked")
@Override
public T newChannel() {
switch (kind) {
case ACCEPTOR:
switch (type) {
case DATAGRAM:
return (T) new NioUdtMessageAcceptorChannel();
case STREAM:
return (T) new NioUdtByteAcceptorChannel();
default:
throw new IllegalStateException("wrong type=" + type);
}
case CONNECTOR:
switch (type) {
case DATAGRAM:
return (T) new NioUdtMessageConnectorChannel();
case STREAM:
return (T) new NioUdtByteConnectorChannel();
default:
throw new IllegalStateException("wrong type=" + type);
}
case RENDEZVOUS:
switch (type) {
case DATAGRAM:
return (T) new NioUdtMessageRendezvousChannel();
case STREAM:
return (T) new NioUdtByteRendezvousChannel();
default:
throw new IllegalStateException("wrong type=" + type);
}
default:
throw new IllegalStateException("wrong kind=" + kind);
}
}
/**
* UDT Socket Type. See {@link TypeUDT}
*/
public TypeUDT type() {
return type;
}
}