io.netty.channel.socket.oio.OioSocketChannel Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* 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:
*
* https://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.oio;
import io.netty.buffer.ByteBuf;
import io.netty.channel.Channel;
import io.netty.channel.ChannelException;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelPromise;
import io.netty.channel.ConnectTimeoutException;
import io.netty.channel.EventLoop;
import io.netty.channel.oio.OioByteStreamChannel;
import io.netty.channel.socket.ServerSocketChannel;
import io.netty.channel.socket.SocketChannel;
import io.netty.util.internal.SocketUtils;
import io.netty.util.internal.UnstableApi;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.SocketTimeoutException;
/**
* A {@link SocketChannel} which is using Old-Blocking-IO
*
* @deprecated use NIO / EPOLL / KQUEUE transport.
*/
@Deprecated
public class OioSocketChannel extends OioByteStreamChannel implements SocketChannel {
private static final InternalLogger logger = InternalLoggerFactory.getInstance(OioSocketChannel.class);
private final Socket socket;
private final OioSocketChannelConfig config;
/**
* Create a new instance with an new {@link Socket}
*/
public OioSocketChannel() {
this(new Socket());
}
/**
* Create a new instance from the given {@link Socket}
*
* @param socket the {@link Socket} which is used by this instance
*/
public OioSocketChannel(Socket socket) {
this(null, socket);
}
/**
* Create a new instance from the given {@link Socket}
*
* @param parent the parent {@link Channel} which was used to create this instance. This can be null if the
* {@link} has no parent as it was created by your self.
* @param socket the {@link Socket} which is used by this instance
*/
public OioSocketChannel(Channel parent, Socket socket) {
super(parent);
this.socket = socket;
config = new DefaultOioSocketChannelConfig(this, socket);
boolean success = false;
try {
if (socket.isConnected()) {
activate(socket.getInputStream(), socket.getOutputStream());
}
socket.setSoTimeout(SO_TIMEOUT);
success = true;
} catch (Exception e) {
throw new ChannelException("failed to initialize a socket", e);
} finally {
if (!success) {
try {
socket.close();
} catch (IOException e) {
logger.warn("Failed to close a socket.", e);
}
}
}
}
@Override
public ServerSocketChannel parent() {
return (ServerSocketChannel) super.parent();
}
@Override
public OioSocketChannelConfig config() {
return config;
}
@Override
public boolean isOpen() {
return !socket.isClosed();
}
@Override
public boolean isActive() {
return !socket.isClosed() && socket.isConnected();
}
@Override
public boolean isOutputShutdown() {
return socket.isOutputShutdown() || !isActive();
}
@Override
public boolean isInputShutdown() {
return socket.isInputShutdown() || !isActive();
}
@Override
public boolean isShutdown() {
return socket.isInputShutdown() && socket.isOutputShutdown() || !isActive();
}
@UnstableApi
@Override
protected final void doShutdownOutput() throws Exception {
shutdownOutput0();
}
@Override
public ChannelFuture shutdownOutput() {
return shutdownOutput(newPromise());
}
@Override
public ChannelFuture shutdownInput() {
return shutdownInput(newPromise());
}
@Override
public ChannelFuture shutdown() {
return shutdown(newPromise());
}
@Override
protected int doReadBytes(ByteBuf buf) throws Exception {
if (socket.isClosed()) {
return -1;
}
try {
return super.doReadBytes(buf);
} catch (SocketTimeoutException ignored) {
return 0;
}
}
@Override
public ChannelFuture shutdownOutput(final ChannelPromise promise) {
EventLoop loop = eventLoop();
if (loop.inEventLoop()) {
shutdownOutput0(promise);
} else {
loop.execute(new Runnable() {
@Override
public void run() {
shutdownOutput0(promise);
}
});
}
return promise;
}
private void shutdownOutput0(ChannelPromise promise) {
try {
shutdownOutput0();
promise.setSuccess();
} catch (Throwable t) {
promise.setFailure(t);
}
}
private void shutdownOutput0() throws IOException {
socket.shutdownOutput();
}
@Override
public ChannelFuture shutdownInput(final ChannelPromise promise) {
EventLoop loop = eventLoop();
if (loop.inEventLoop()) {
shutdownInput0(promise);
} else {
loop.execute(new Runnable() {
@Override
public void run() {
shutdownInput0(promise);
}
});
}
return promise;
}
private void shutdownInput0(ChannelPromise promise) {
try {
socket.shutdownInput();
promise.setSuccess();
} catch (Throwable t) {
promise.setFailure(t);
}
}
@Override
public ChannelFuture shutdown(final ChannelPromise promise) {
ChannelFuture shutdownOutputFuture = shutdownOutput();
if (shutdownOutputFuture.isDone()) {
shutdownOutputDone(shutdownOutputFuture, promise);
} else {
shutdownOutputFuture.addListener(new ChannelFutureListener() {
@Override
public void operationComplete(final ChannelFuture shutdownOutputFuture) throws Exception {
shutdownOutputDone(shutdownOutputFuture, promise);
}
});
}
return promise;
}
private void shutdownOutputDone(final ChannelFuture shutdownOutputFuture, final ChannelPromise promise) {
ChannelFuture shutdownInputFuture = shutdownInput();
if (shutdownInputFuture.isDone()) {
shutdownDone(shutdownOutputFuture, shutdownInputFuture, promise);
} else {
shutdownInputFuture.addListener(new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture shutdownInputFuture) throws Exception {
shutdownDone(shutdownOutputFuture, shutdownInputFuture, promise);
}
});
}
}
private static void shutdownDone(ChannelFuture shutdownOutputFuture,
ChannelFuture shutdownInputFuture,
ChannelPromise promise) {
Throwable shutdownOutputCause = shutdownOutputFuture.cause();
Throwable shutdownInputCause = shutdownInputFuture.cause();
if (shutdownOutputCause != null) {
if (shutdownInputCause != null) {
logger.debug("Exception suppressed because a previous exception occurred.",
shutdownInputCause);
}
promise.setFailure(shutdownOutputCause);
} else if (shutdownInputCause != null) {
promise.setFailure(shutdownInputCause);
} else {
promise.setSuccess();
}
}
@Override
public InetSocketAddress localAddress() {
return (InetSocketAddress) super.localAddress();
}
@Override
public InetSocketAddress remoteAddress() {
return (InetSocketAddress) super.remoteAddress();
}
@Override
protected SocketAddress localAddress0() {
return socket.getLocalSocketAddress();
}
@Override
protected SocketAddress remoteAddress0() {
return socket.getRemoteSocketAddress();
}
@Override
protected void doBind(SocketAddress localAddress) throws Exception {
SocketUtils.bind(socket, localAddress);
}
@Override
protected void doConnect(SocketAddress remoteAddress,
SocketAddress localAddress) throws Exception {
if (localAddress != null) {
SocketUtils.bind(socket, localAddress);
}
boolean success = false;
try {
SocketUtils.connect(socket, remoteAddress, config().getConnectTimeoutMillis());
activate(socket.getInputStream(), socket.getOutputStream());
success = true;
} catch (SocketTimeoutException e) {
ConnectTimeoutException cause = new ConnectTimeoutException("connection timed out: " + remoteAddress);
cause.setStackTrace(e.getStackTrace());
throw cause;
} finally {
if (!success) {
doClose();
}
}
}
@Override
protected void doDisconnect() throws Exception {
doClose();
}
@Override
protected void doClose() throws Exception {
socket.close();
}
protected boolean checkInputShutdown() {
if (isInputShutdown()) {
try {
Thread.sleep(config().getSoTimeout());
} catch (Throwable e) {
// ignore
}
return true;
}
return false;
}
@Deprecated
@Override
protected void setReadPending(boolean readPending) {
super.setReadPending(readPending);
}
final void clearReadPending0() {
clearReadPending();
}
}