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Tomcat example source code file (Http11NioProtocol.java)

This example Tomcat source code file (Http11NioProtocol.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Tomcat tags/keywords

atomicinteger, exception, exception, hashtable, http11connectionhandler, http11nioprocessor, http11nioprocessor, http11nioprotocol, management, net, network, objectname, objectname, secureniochannel, socketstate, string, string, threading, threads, util

The Tomcat Http11NioProtocol.java source code

/*
 *  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.ConcurrentLinkedQueue;
import java.util.concurrent.Executor;
import java.util.concurrent.atomic.AtomicInteger;
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.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.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
 * @author Filip Hanik
 */
public class Http11NioProtocol implements ProtocolHandler, MBeanRegistration
{
    protected SSLImplementation sslImplementation = null;
    
    public Http11NioProtocol() {
        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 boolean setProperty(String name, String value) {
        setAttribute(name, value); //store all settings
        if ( name!=null && (name.startsWith("socket.") ||name.startsWith("selectorPool.")) ){
            return ep.setProperty(name, value);
        } else {
            return ep.setProperty(name,value); //make sure we at least try to set all properties
        }
        
    }

    /**
     * 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);
        
        //todo, determine if we even need these
        ep.getSocketProperties().setRxBufSize(Math.max(ep.getSocketProperties().getRxBufSize(),getMaxHttpHeaderSize()));
        ep.getSocketProperties().setTxBufSize(Math.max(ep.getSocketProperties().getTxBufSize(),getMaxHttpHeaderSize()));
        
        try {
            ep.init();
            sslImplementation = SSLImplementation.getInstance("org.apache.tomcat.util.net.jsse.JSSEImplementation");
        } 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 NioEndpoint ep=new NioEndpoint();
    protected boolean secure = false;

    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;
    protected int processorCache = 200; //max number of Http11NioProcessor objects cached
    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 void setPollerThreadCount(int count) {
        ep.setPollerThreadCount(count);
    }
    
    public int getPollerThreadCount() {
        return ep.getPollerThreadCount();
    }
    
    public void setSelectorTimeout(long timeout) {
        ep.setSelectorTimeout(timeout);
    }
    
    public long getSelectorTimeout() {
        return ep.getSelectorTimeout();
    }
    // *
    public Executor getExecutor() {
        return ep.getExecutor();
    }

    // *
    public void setExecutor(Executor executor) {
        ep.setExecutor(executor);
    }
    
    public void setUseExecutor(boolean useexec) {
        ep.setUseExecutor(useexec);
    }

    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 void setAcceptorThreadPriority(int threadPriority) {
      ep.setAcceptorThreadPriority(threadPriority);
      setAttribute("acceptorThreadPriority", "" + threadPriority);
    }

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

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

    public int getAcceptorThreadPriority() {
      return ep.getAcceptorThreadPriority();
    }
    
    public int getPollerThreadPriority() {
      return ep.getThreadPriority();
    }
    
    
    public boolean getUseSendfile() {
        return ep.getUseSendfile();
    }

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

    
    // -------------------- 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 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;
    }

    public void setNoCompressionUserAgents(String valueS) {
        noCompressionUserAgents = valueS;
        setAttribute("noCompressionUserAgents", valueS);
    }

    public String getCompressableMimeType() {
        return compressableMimeTypes;
    }

    public void setCompressableMimeType(String valueS) {
        compressableMimeTypes = valueS;
        setAttribute("compressableMimeTypes", valueS);
    }

    public int getCompressionMinSize() {
        return compressionMinSize;
    }

    public void setCompressionMinSize(int valueI) {
        compressionMinSize = valueI;
        setAttribute("compressionMinSize", "" + valueI);
    }

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

    public void setSoLinger( int i ) {
        ep.setSoLinger( i );
        setAttribute("soLinger", "" + i);
    }

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

    public void setSoTimeout( int i ) {
        ep.setSoTimeout(i);
        setAttribute("soTimeout", "" + i);
    }

    public String getProtocol() {
        return getProperty("protocol");
    }

    public void setProtocol( String k ) {
        setSecure(true);
        setAttribute("protocol", k);
    }

    public boolean getSecure() {
        return secure;
    }

    public void setSecure( boolean b ) {
        ep.setSecure(b);
        secure=b;
        setAttribute("secure", "" + b);
    }

    public int getMaxKeepAliveRequests() {
        return maxKeepAliveRequests;
    }

    /** Set the maximum number of Keep-Alive requests that we will honor.
     */
    public void setMaxKeepAliveRequests(int mkar) {
        maxKeepAliveRequests = mkar;
        setAttribute("maxKeepAliveRequests", "" + mkar);
    }

    /**
     * Return the Keep-Alive policy for the connection.
     */
    public boolean getKeepAlive() {
        return ((maxKeepAliveRequests != 0) && (maxKeepAliveRequests != 1));
    }

    /**
     * Set the keep-alive policy for this connection.
     */
    public void setKeepAlive(boolean keepAlive) {
        if (!keepAlive) {
            setMaxKeepAliveRequests(1);
        }
    }

    public int getSocketCloseDelay() {
        return socketCloseDelay;
    }

    public void setSocketCloseDelay( int d ) {
        socketCloseDelay=d;
        setAttribute("socketCloseDelay", "" + d);
    }

    public void setServer( String server ) {
        this.server = server;
    }

    public String getServer() {
        return server;
    }

    public int getTimeout() {
        return timeout;
    }

    public void setTimeout( int timeouts ) {
        timeout = timeouts;
        setAttribute("timeout", "" + timeouts);
    }

    public void setProcessorCache(int processorCache) {
        this.processorCache = processorCache;
    }

    public void setOomParachute(int oomParachute) {
        ep.setOomParachute(oomParachute);
        setAttribute("oomParachute",oomParachute);
    }

    // --------------------  SSL related properties --------------------

    public String getKeystoreFile() { return ep.getKeystoreFile();}
    public void setKeystoreFile(String s ) { ep.setKeystoreFile(s);}
    public void setKeystore(String s) { setKeystoreFile(s);}
    public String getKeystore(){ return getKeystoreFile();}
    
    public String getAlgorithm() { return ep.getAlgorithm();}
    public void setAlgorithm(String s ) { ep.setAlgorithm(s);}
    
    public void setClientauth(String s) {setClientAuth(s);}
    public String getClientauth(){ return getClientAuth();}
    public String getClientAuth() { return ep.getClientAuth();}
    public void setClientAuth(String s ) { ep.setClientAuth(s);}
    
    public String getKeystorePass() { return ep.getKeystorePass();}
    public void setKeystorePass(String s ) { ep.setKeystorePass(s);}
    public void setKeypass(String s) { setKeystorePass(s);}
    public String getKeypass() { return getKeystorePass();}
    public String getKeystoreType() { return ep.getKeystoreType();}
    public void setKeystoreType(String s ) { ep.setKeystoreType(s);}
    public String getKeytype() { return getKeystoreType();}
    public void setKeytype(String s ) { setKeystoreType(s);}

    public void setTruststoreFile(String f){ep.setTruststoreFile(f);}
    public String getTruststoreFile(){return ep.getTruststoreFile();}
    public void setTruststorePass(String p){ep.setTruststorePass(p);}
    public String getTruststorePass(){return ep.getTruststorePass();}
    public void setTruststoreType(String t){ep.setTruststoreType(t);}
    public String getTruststoreType(){ return ep.getTruststoreType();}
    
    
    public String getSslProtocol() { return ep.getSslProtocol();}
    public void setSslProtocol(String s) { ep.setSslProtocol(s);}
    
    public String getCiphers() { return ep.getCiphers();}
    public void setCiphers(String s) { ep.setCiphers(s);}
    
    public boolean getSSLEnabled() { return ep.isSSLEnabled(); }
    public void setSSLEnabled(boolean SSLEnabled) { ep.setSSLEnabled(SSLEnabled); }
    
    

    // --------------------  Connection handler --------------------

    static class Http11ConnectionHandler implements Handler {

        protected Http11NioProtocol proto;
        protected static int count = 0;
        protected RequestGroupInfo global = new RequestGroupInfo();

        protected ConcurrentHashMap<NioChannel, Http11NioProcessor> connections =
            new ConcurrentHashMap<NioChannel, Http11NioProcessor>();
        protected ConcurrentLinkedQueue<Http11NioProcessor> recycledProcessors = new ConcurrentLinkedQueue() {
            protected AtomicInteger size = new AtomicInteger(0);
            public boolean offer(Http11NioProcessor processor) {
                boolean offer = proto.processorCache==-1?true:size.get() < proto.processorCache;
                //avoid over growing our cache or add after we have stopped
                boolean result = false;
                if ( offer ) {
                    result = super.offer(processor);
                    if ( result ) {
                        size.incrementAndGet();
                    }
                }
                if (!result) deregister(processor);
                return result;
            }
            
            public Http11NioProcessor poll() {
                Http11NioProcessor result = super.poll();
                if ( result != null ) {
                    size.decrementAndGet();
                }
                return result;
            }
            
            public void clear() {
                Http11NioProcessor next = poll();
                while ( next != null ) {
                    deregister(next);
                    next = poll();
                }
                super.clear();
                size.set(0);
            }
        };

        Http11ConnectionHandler(Http11NioProtocol proto) {
            this.proto = proto;
        }
        
        public void releaseCaches() {
            recycledProcessors.clear();
        }
        
        public void release(NioChannel socket) {
            Http11NioProcessor result = connections.remove(socket);
            if ( result != null ) {
                result.recycle();
                recycledProcessors.offer(result);
            }
        }

        public SocketState event(NioChannel socket, SocketStatus status) {
            Http11NioProcessor result = connections.get(socket);

            SocketState state = SocketState.CLOSED; 
            if (result != null) {
                if (log.isDebugEnabled()) log.debug("Http11NioProcessor.error="+result.error);
                // Call the appropriate event
                try {
                    state = result.event(status);
                } catch (java.net.SocketException e) {
                    // SocketExceptions are normal
                    Http11NioProtocol.log.debug
                        (sm.getString
                            ("http11protocol.proto.socketexception.debug"), e);
                } catch (java.io.IOException e) {
                    // IOExceptions are normal
                    Http11NioProtocol.log.debug
                        (sm.getString
                            ("http11protocol.proto.ioexception.debug"), e);
                }
                // Future developers: if you discover any other
                // rare-but-nonfatal exceptions, catch them here, and log as
                // above.
                catch (Throwable e) {
                    // any other exception or error is odd. Here we log it
                    // with "ERROR" level, so it will show up even on
                    // less-than-verbose logs.
                    Http11NioProtocol.log.error
                        (sm.getString("http11protocol.proto.error"), e);
                } finally {
                    if (state != SocketState.LONG) {
                        connections.remove(socket);
                        recycledProcessors.offer(result);
                        if (state == SocketState.OPEN) {
                            socket.getPoller().add(socket);
                        }
                    } else {
                        if (log.isDebugEnabled()) log.debug("Keeping processor["+result);
                        //add correct poller events here based on Comet stuff
                        NioEndpoint.KeyAttachment att = (NioEndpoint.KeyAttachment)socket.getAttachment(false);
                        socket.getPoller().add(socket,att.getCometOps());
                    }
                }
            }
            return state;
        }

        public SocketState process(NioChannel socket) {
            Http11NioProcessor processor = null;
            try {
                processor = connections.remove(socket);
                
                if (processor == null) {
                    processor = recycledProcessors.poll();
                }
                if (processor == null) {
                    processor = createProcessor();
                }

                if (processor instanceof ActionHook) {
                    ((ActionHook) processor).action(ActionCode.ACTION_START, null);
                }
                
                
                if (proto.ep.getSecure() && (proto.sslImplementation != null)) {
                    if (socket instanceof SecureNioChannel) {
                        SecureNioChannel ch = (SecureNioChannel)socket;
                        processor.setSslSupport(proto.sslImplementation.getSSLSupport(ch.getSslEngine().getSession()));
                    }else processor.setSslSupport(null);
                } else {
                    processor.setSslSupport(null);
                }


                SocketState state = processor.process(socket);
                if (state == SocketState.LONG) {
                    // Associate the connection with the processor. The next request 
                    // processed by this thread will use either a new or a recycled
                    // processor.
                    //if (log.isDebugEnabled()) log.debug("Not recycling ["+processor+"] Comet="+((NioEndpoint.KeyAttachment)socket.getAttachment(false)).getComet());
                    connections.put(socket, processor);
                    if (processor.comet) {
                        NioEndpoint.KeyAttachment att = (NioEndpoint.KeyAttachment)socket.getAttachment(false);
                        socket.getPoller().add(socket,att.getCometOps());
                    } else {
                        socket.getPoller().add(socket);
                    }
                } else {
                    recycledProcessors.offer(processor);
                }
                return state;

            } catch (java.net.SocketException e) {
                // SocketExceptions are normal
                Http11NioProtocol.log.debug
                    (sm.getString
                     ("http11protocol.proto.socketexception.debug"), e);
            } catch (java.io.IOException e) {
                // IOExceptions are normal
                Http11NioProtocol.log.debug
                    (sm.getString
                     ("http11protocol.proto.ioexception.debug"), e);
            }
            // Future developers: if you discover any other
            // rare-but-nonfatal exceptions, catch them here, and log as
            // above.
            catch (Throwable e) {
                // any other exception or error is odd. Here we log it
                // with "ERROR" level, so it will show up even on
                // less-than-verbose logs.
                Http11NioProtocol.log.error
                    (sm.getString("http11protocol.proto.error"), e);
            }
            recycledProcessors.offer(processor);
            return SocketState.CLOSED;
        }

        public Http11NioProcessor createProcessor() {
            Http11NioProcessor processor = new Http11NioProcessor(
              proto.ep.getSocketProperties().getRxBufSize(),
              proto.ep.getSocketProperties().getTxBufSize(), 
              proto.maxHttpHeaderSize,
              proto.ep);
            processor.setAdapter(proto.adapter);
            processor.setMaxKeepAliveRequests(proto.maxKeepAliveRequests);
            processor.setTimeout(proto.timeout);
            processor.setDisableUploadTimeout(proto.disableUploadTimeout);
            processor.setCompressionMinSize(proto.compressionMinSize);
            processor.setCompression(proto.compression);
            processor.setNoCompressionUserAgents(proto.noCompressionUserAgents);
            processor.setCompressableMimeTypes(proto.compressableMimeTypes);
            processor.setRestrictedUserAgents(proto.restrictedUserAgents);
            processor.setSocketBuffer(proto.socketBuffer);
            processor.setMaxSavePostSize(proto.maxSavePostSize);
            processor.setServer(proto.server);
            register(processor);
            return processor;
        }
        AtomicInteger registerCount = new AtomicInteger(0);
        public void register(Http11NioProcessor processor) {
            if (proto.getDomain() != null) {
                synchronized (this) {
                    try {
                        registerCount.addAndGet(1);
                        if (log.isDebugEnabled()) log.debug("Register ["+processor+"] count="+registerCount.get());
                        RequestInfo rp = processor.getRequest().getRequestProcessor();
                        rp.setGlobalProcessor(global);
                        ObjectName rpName = new ObjectName
                            (proto.getDomain() + ":type=RequestProcessor,worker="
                             + proto.getName() + ",name=HttpRequest" + count++);
                        Registry.getRegistry(null, null).registerComponent(rp, rpName, null);
                        rp.setRpName(rpName);
                    } catch (Exception e) {
                        log.warn("Error registering request");
                    }
                }
            }
        }
    
        public void deregister(Http11NioProcessor processor) {
            if (proto.getDomain() != null) {
                synchronized (this) {
                    try {
                        registerCount.addAndGet(-1);
                        if (log.isDebugEnabled()) log.debug("Deregister ["+processor+"] count="+registerCount.get());
                        RequestInfo rp = processor.getRequest().getRequestProcessor();
                        rp.setGlobalProcessor(null);
                        ObjectName rpName = rp.getRpName();
                        Registry.getRegistry(null, null).unregisterComponent(rpName);
                        rp.setRpName(null);
                    } catch (Exception e) {
                        log.warn("Error unregistering request", e);
                    }
                }
            }
        }

    }
    


    protected static org.apache.juli.logging.Log log
        = org.apache.juli.logging.LogFactory.getLog(Http11NioProtocol.class);

    // -------------------- Various implementation classes --------------------

    protected String domain;
    protected ObjectName oname;
    protected MBeanServer mserver;

    public ObjectName getObjectName() {
        return oname;
    }

    public String getDomain() {
        return domain;
    }

    public int getProcessorCache() {
        return processorCache;
    }

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

    public ObjectName preRegister(MBeanServer server,
                                  ObjectName name) throws Exception {
        oname=name;
        mserver=server;
        domain=name.getDomain();
        return name;
    }

    public void postRegister(Boolean registrationDone) {
    }

    public void preDeregister() throws Exception {
    }

    public void postDeregister() {
    }
}

Other Tomcat examples (source code examples)

Here is a short list of links related to this Tomcat Http11NioProtocol.java source code file:

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