http11aprprotocol.java

业界著名的tomcat服务器的最新6.0的源代码。

/*
 *  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.net.InetAddress;
import java.net.URLEncoder;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.Executor;

import javax.management.MBeanRegistration;
import javax.management.MBeanServer;
import javax.management.ObjectName;

import org.apache.coyote.ActionCode;
import org.apache.coyote.ActionHook;
import org.apache.coyote.Adapter;
import org.apache.coyote.ProtocolHandler;
import org.apache.coyote.RequestGroupInfo;
import org.apache.coyote.RequestInfo;
import org.apache.tomcat.util.modeler.Registry;
import org.apache.tomcat.util.net.AprEndpoint;
import org.apache.tomcat.util.net.SocketStatus;
import org.apache.tomcat.util.net.AprEndpoint.Handler;
import org.apache.tomcat.util.res.StringManager;


/**
 * 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 Http11AprProtocol implements ProtocolHandler, MBeanRegistration
{
    public Http11AprProtocol() {
        cHandler = new Http11ConnectionHandler( this );
        setSoLinger(Constants.DEFAULT_CONNECTION_LINGER);
        setSoTimeout(Constants.DEFAULT_CONNECTION_TIMEOUT);
        //setServerSoTimeout(Constants.DEFAULT_SERVER_SOCKET_TIMEOUT);
        setTcpNoDelay(Constants.DEFAULT_TCP_NO_DELAY);
    }

    /**
     * The string manager for this package.
     */
    protected static StringManager sm =
        StringManager.getManager(Constants.Package);

    /** Pass config info
     */
    public void setAttribute( String name, Object value ) {
        if( log.isTraceEnabled())
            log.trace(sm.getString("http11protocol.setattribute", name, value));

        attributes.put(name, value);
    }

    public Object getAttribute( String key ) {
        if( log.isTraceEnabled())
            log.trace(sm.getString("http11protocol.getattribute", key));
        return attributes.get(key);
    }

    public Iterator getAttributeNames() {
        return attributes.keySet().iterator();
    }

    /**
     * Set a property.
     */
    public void setProperty(String name, String value) {
        setAttribute(name, value);
    }

    /**
     * Get a property
     */
    public String getProperty(String name) {
        return (String)getAttribute(name);
    }

    /** The adapter, used to call the connector
     */
    public void setAdapter(Adapter adapter) {
        this.adapter=adapter;
    }

    public Adapter getAdapter() {
        return adapter;
    }


    /** Start the protocol
     */
    public void init() throws Exception {
        ep.setName(getName());
        ep.setHandler(cHandler);

        try {
            ep.init();
        } catch (Exception ex) {
            log.error(sm.getString("http11protocol.endpoint.initerror"), ex);
            throw ex;
        }
        if(log.isInfoEnabled())
            log.info(sm.getString("http11protocol.init", getName()));

    }

    ObjectName tpOname;
    ObjectName rgOname;

    public void start() throws Exception {
        if( this.domain != null ) {
            try {
                tpOname=new ObjectName
                    (domain + ":" + "type=ThreadPool,name=" + getName());
                Registry.getRegistry(null, null)
                .registerComponent(ep, tpOname, null );
            } catch (Exception e) {
                log.error("Can't register threadpool" );
            }
            rgOname=new ObjectName
                (domain + ":type=GlobalRequestProcessor,name=" + getName());
            Registry.getRegistry(null, null).registerComponent
                ( cHandler.global, rgOname, null );
        }

        try {
            ep.start();
        } catch (Exception ex) {
            log.error(sm.getString("http11protocol.endpoint.starterror"), ex);
            throw ex;
        }
        if(log.isInfoEnabled())
            log.info(sm.getString("http11protocol.start", getName()));
    }

    public void pause() throws Exception {
        try {
            ep.pause();
        } catch (Exception ex) {
            log.error(sm.getString("http11protocol.endpoint.pauseerror"), ex);
            throw ex;
        }
        if(log.isInfoEnabled())
            log.info(sm.getString("http11protocol.pause", getName()));
    }

    public void resume() throws Exception {
        try {
            ep.resume();
        } catch (Exception ex) {
            log.error(sm.getString("http11protocol.endpoint.resumeerror"), ex);
            throw ex;
        }
        if(log.isInfoEnabled())
            log.info(sm.getString("http11protocol.resume", getName()));
    }

    public void destroy() throws Exception {
        if(log.isInfoEnabled())
            log.info(sm.getString("http11protocol.stop", getName()));
        ep.destroy();
        if( tpOname!=null )
            Registry.getRegistry(null, null).unregisterComponent(tpOname);
        if( rgOname != null )
            Registry.getRegistry(null, null).unregisterComponent(rgOname);
    }

    // -------------------- Properties--------------------
    protected AprEndpoint ep=new AprEndpoint();
    protected boolean secure;

    protected Hashtable attributes = new Hashtable();

    private int maxKeepAliveRequests=100; // as in Apache HTTPD server
    private int timeout = 300000;   // 5 minutes as in Apache HTTPD server
    private int maxSavePostSize = 4 * 1024;
    private int maxHttpHeaderSize = 8 * 1024;
    private int socketCloseDelay=-1;
    private boolean disableUploadTimeout = true;
    private int socketBuffer = 9000;
    private Adapter adapter;
    private Http11ConnectionHandler cHandler;

    /**
     * Compression value.
     */
    private String compression = "off";
    private String noCompressionUserAgents = null;
    private String restrictedUserAgents = null;
    private String compressableMimeTypes = "text/html,text/xml,text/plain";
    private int compressionMinSize    = 2048;

    private String server;

    // -------------------- Pool setup --------------------

    // *
    public Executor getExecutor() {
        return ep.getExecutor();
    }
    
    // *
    public void setExecutor(Executor executor) {
        ep.setExecutor(executor);
    }
    
    public int getMaxThreads() {
        return ep.getMaxThreads();
    }

    public void setMaxThreads( int maxThreads ) {
        ep.setMaxThreads(maxThreads);
        setAttribute("maxThreads", "" + maxThreads);
    }

    public void setThreadPriority(int threadPriority) {
      ep.setThreadPriority(threadPriority);
      setAttribute("threadPriority", "" + threadPriority);
    }

    public int getThreadPriority() {
      return ep.getThreadPriority();
    }

    // -------------------- Tcp setup --------------------

    public int getBacklog() {
        return ep.getBacklog();
    }

    public void setBacklog( int i ) {
        ep.setBacklog(i);
        setAttribute("backlog", "" + i);
    }

    public int getPort() {
        return ep.getPort();
    }

    public void setPort( int port ) {
        ep.setPort(port);
        setAttribute("port", "" + port);
    }

    public int getFirstReadTimeout() {
        return ep.getFirstReadTimeout();
    }

    public void setFirstReadTimeout( int i ) {
        ep.setFirstReadTimeout(i);
        setAttribute("firstReadTimeout", "" + i);
    }

    public int getPollTime() {
        return ep.getPollTime();
    }

    public void setPollTime( int i ) {
        ep.setPollTime(i);
        setAttribute("pollTime", "" + i);
    }

    public void setPollerSize(int i) {
        ep.setPollerSize(i); 
        setAttribute("pollerSize", "" + i);
    }
    
    public int getPollerSize() {
        return ep.getPollerSize();
    }
    
    public void setSendfileSize(int i) {
        ep.setSendfileSize(i); 
        setAttribute("sendfileSize", "" + i);
    }
    
    public int getSendfileSize() {
        return ep.getSendfileSize();
    }
    
    public boolean getUseSendfile() {
        return ep.getUseSendfile();
    }

    public void setUseSendfile(boolean useSendfile) {
        ep.setUseSendfile(useSendfile);
    }

    public InetAddress getAddress() {
        return ep.getAddress();
    }

    public void setAddress(InetAddress ia) {
        ep.setAddress( ia );
        setAttribute("address", "" + ia);
    }

    public String getName() {
        String encodedAddr = "";
        if (getAddress() != null) {
            encodedAddr = "" + getAddress();
            if (encodedAddr.startsWith("/"))
                encodedAddr = encodedAddr.substring(1);
            encodedAddr = URLEncoder.encode(encodedAddr) + "-";
        }
        return ("http-" + encodedAddr + ep.getPort());
    }

    public boolean getTcpNoDelay() {
        return ep.getTcpNoDelay();
    }

    public void setTcpNoDelay( boolean b ) {
        ep.setTcpNoDelay( b );
        setAttribute("tcpNoDelay", "" + b);
    }

    public boolean getDisableUploadTimeout() {
        return disableUploadTimeout;
    }

    public void setDisableUploadTimeout(boolean isDisabled) {
        disableUploadTimeout = isDisabled;
    }

    public int getSocketBuffer() {
        return socketBuffer;
    }

    public void setSocketBuffer(int valueI) {
        socketBuffer = valueI;
    }

    public String getCompression() {
        return compression;
    }

    public void setCompression(String valueS) {
        compression = valueS;
        setAttribute("compression", valueS);
    }

    public int getMaxSavePostSize() {
        return maxSavePostSize;
    }

    public void setMaxSavePostSize(int valueI) {
        maxSavePostSize = valueI;
        setAttribute("maxSavePostSize", "" + valueI);
    }

    public int getMaxHttpHeaderSize() {
        return maxHttpHeaderSize;
    }

    public void setMaxHttpHeaderSize(int valueI) {
        maxHttpHeaderSize = valueI;
        setAttribute("maxHttpHeaderSize", "" + valueI);
    }

    public String getRestrictedUserAgents() {
        return restrictedUserAgents;
    }

    public void setRestrictedUserAgents(String valueS) {
        restrictedUserAgents = valueS;
        setAttribute("restrictedUserAgents", valueS);
    }

    public String getNoCompressionUserAgents() {
        return noCompressionUserAgents;