/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.coyote.http11;
import java.io.IOException;
import java.nio.channels.SocketChannel;
import java.util.Iterator;
import javax.net.ssl.SSLEngine;
import javax.servlet.http.HttpUpgradeHandler;
import org.apache.coyote.AbstractProtocol;
import org.apache.coyote.Processor;
import org.apache.coyote.http11.upgrade.NioProcessor;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.net.AbstractEndpoint;
import org.apache.tomcat.util.net.NioChannel;
import org.apache.tomcat.util.net.NioEndpoint;
import org.apache.tomcat.util.net.NioEndpoint.Handler;
import org.apache.tomcat.util.net.SSLImplementation;
import org.apache.tomcat.util.net.SecureNioChannel;
import org.apache.tomcat.util.net.SocketStatus;
import org.apache.tomcat.util.net.SocketWrapper;
/**
* Abstract the protocol implementation, including threading, etc.
* Processor is single threaded and specific to stream-based protocols,
* will not fit Jk protocols like JNI.
*
* @author Remy Maucherat
* @author Costin Manolache
*/
public class Http11NioProtocol extends AbstractHttp11JsseProtocol<NioChannel> {
private static final Log log = LogFactory.getLog(Http11NioProtocol.class);
@Override
protected Log getLog() { return log; }
@Override
protected AbstractEndpoint.Handler getHandler() {
return cHandler;
}
public Http11NioProtocol() {
endpoint=new NioEndpoint();
cHandler = new Http11ConnectionHandler(this);
((NioEndpoint) endpoint).setHandler(cHandler);
setSoLinger(Constants.DEFAULT_CONNECTION_LINGER);
setSoTimeout(Constants.DEFAULT_CONNECTION_TIMEOUT);
setTcpNoDelay(Constants.DEFAULT_TCP_NO_DELAY);
}
public NioEndpoint getEndpoint() {
return ((NioEndpoint)endpoint);
}
@Override
public void start() throws Exception {
super.start();
if (npnHandler != null) {
npnHandler.init(getEndpoint(), 0, getAdapter());
}
}
// -------------------- Properties--------------------
private final Http11ConnectionHandler cHandler;
// -------------------- Pool setup --------------------
public void setPollerThreadCount(int count) {
((NioEndpoint)endpoint).setPollerThreadCount(count);
}
public int getPollerThreadCount() {
return ((NioEndpoint)endpoint).getPollerThreadCount();
}
public void setSelectorTimeout(long timeout) {
((NioEndpoint)endpoint).setSelectorTimeout(timeout);
}
public long getSelectorTimeout() {
return ((NioEndpoint)endpoint).getSelectorTimeout();
}
public void setAcceptorThreadPriority(int threadPriority) {
((NioEndpoint)endpoint).setAcceptorThreadPriority(threadPriority);
}
public void setPollerThreadPriority(int threadPriority) {
((NioEndpoint)endpoint).setPollerThreadPriority(threadPriority);
}
public int getAcceptorThreadPriority() {
return ((NioEndpoint)endpoint).getAcceptorThreadPriority();
}
public int getPollerThreadPriority() {
return ((NioEndpoint)endpoint).getThreadPriority();
}
public boolean getUseSendfile() {
return endpoint.getUseSendfile();
}
public void setUseSendfile(boolean useSendfile) {
((NioEndpoint)endpoint).setUseSendfile(useSendfile);
}
// -------------------- Tcp setup --------------------
public void setOomParachute(int oomParachute) {
((NioEndpoint)endpoint).setOomParachute(oomParachute);
}
// ----------------------------------------------------- JMX related methods
@Override
protected String getNamePrefix() {
return ("http-nio");
}
// -------------------- Connection handler --------------------
protected static class Http11ConnectionHandler
extends AbstractConnectionHandler<NioChannel,Http11NioProcessor>
implements Handler {
protected Http11NioProtocol proto;
Http11ConnectionHandler(Http11NioProtocol proto) {
this.proto = proto;
}
@Override
protected AbstractProtocol<NioChannel> getProtocol() {
return proto;
}
@Override
protected Log getLog() {
return log;
}
@Override
public SSLImplementation getSslImplementation() {
return proto.sslImplementation;
}
/**
* Expected to be used by the Poller to release resources on socket
* close, errors etc.
*/
@Override
public void release(SocketChannel socket) {
if (log.isDebugEnabled())
log.debug("Iterating through our connections to release a socket channel:"+socket);
boolean released = false;
Iterator<java.util.Map.Entry<NioChannel, Processor<NioChannel>>> it = connections.entrySet().iterator();
while (it.hasNext()) {
java.util.Map.Entry<NioChannel, Processor<NioChannel>> entry = it.next();
if (entry.getKey().getIOChannel()==socket) {
it.remove();
Processor<NioChannel> result = entry.getValue();
result.recycle(true);
unregister(result);
released = true;
break;
}
}
if (log.isDebugEnabled())
log.debug("Done iterating through our connections to release a socket channel:"+socket +" released:"+released);
}
/**
* Expected to be used by the Poller to release resources on socket
* close, errors etc.
*/
@Override
public void release(SocketWrapper<NioChannel> socket) {
Processor<NioChannel> processor =
connections.remove(socket.getSocket());
if (processor != null) {
processor.recycle(true);
recycledProcessors.push(processor);
}
}
@Override
public SocketState process(SocketWrapper<NioChannel> socket,
SocketStatus status) {
if (proto.npnHandler != null) {
SocketState ss = proto.npnHandler.process(socket, status);
if (ss != SocketState.OPEN) {
return ss;
}
}
return super.process(socket, status);
}
/**
* Expected to be used by the handler once the processor is no longer
* required.
*
* @param socket
* @param processor
* @param isSocketClosing Not used in HTTP
* @param addToPoller
*/
@Override
public void release(SocketWrapper<NioChannel> socket,
Processor<NioChannel> processor, boolean isSocketClosing,
boolean addToPoller) {
processor.recycle(isSocketClosing);
recycledProcessors.push(processor);
if (addToPoller) {
socket.getSocket().getPoller().add(socket.getSocket());
}
}
@Override
protected void initSsl(SocketWrapper<NioChannel> socket,
Processor<NioChannel> processor) {
if (proto.isSSLEnabled() &&
(proto.sslImplementation != null)
&& (socket.getSocket() instanceof SecureNioChannel)) {
SecureNioChannel ch = (SecureNioChannel)socket.getSocket();
processor.setSslSupport(
proto.sslImplementation.getSSLSupport(
ch.getSslEngine().getSession()));
} else {
processor.setSslSupport(null);
}
}
@Override
protected void longPoll(SocketWrapper<NioChannel> socket,
Processor<NioChannel> processor) {
if (processor.isAsync()) {
socket.setAsync(true);
} else {
// Either:
// - this is comet request
// - this is an upgraded connection
// - the request line/headers have not been completely
// read
socket.getSocket().getPoller().add(socket.getSocket());
}
}
@Override
public Http11NioProcessor createProcessor() {
Http11NioProcessor processor = new Http11NioProcessor(
proto.getMaxHttpHeaderSize(), (NioEndpoint)proto.endpoint,
proto.getMaxTrailerSize(), proto.getMaxExtensionSize(),
proto.getMaxSwallowSize());
proto.configureProcessor(processor);
register(processor);
return processor;
}
@Override
protected Processor<NioChannel> createUpgradeProcessor(
SocketWrapper<NioChannel> socket,
HttpUpgradeHandler httpUpgradeProcessor)
throws IOException {
return new NioProcessor(socket, httpUpgradeProcessor,
proto.getEndpoint().getSelectorPool(),
proto.getUpgradeAsyncWriteBufferSize());
}
@Override
public void onCreateSSLEngine(SSLEngine engine) {
if (proto.npnHandler != null) {
proto.npnHandler.onCreateEngine(engine);
}
}
}
}