MemCacheDaemon.java

/**
 *  Copyright 2008 ThimbleWare Inc.
 *
 *  Licensed 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 com.thimbleware.jmemcached;

import org.apache.mina.common.*;
import org.apache.mina.filter.codec.ProtocolCodecFactory;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.transport.socket.nio.SocketAcceptor;
import org.apache.mina.transport.socket.nio.SocketAcceptorConfig;
import org.apache.mina.transport.socket.nio.SocketSessionConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.concurrent.Executors;

/**
 * The actual daemon - responsible for the binding and configuration of the network configuration.
 */
public class MemCacheDaemon {

    final Logger logger = LoggerFactory.getLogger(MemCacheDaemon.class);

    public static String memcachedVersion = "0.3";

    private int receiveBufferSize = 1024000;
    private int sendBufferSize = 1024000;

    private boolean verbose;
    private int idleTime;
    private InetSocketAddress addr;
    private int port;
    private Cache cache;
    private SocketAcceptor acceptor;

    public MemCacheDaemon() {
    }

    /**
     * Bind the network connection and start the network processing threads.
     *
     * @throws IOException
     */
    public void start() throws IOException {
        acceptor = new SocketAcceptor(16, Executors.newCachedThreadPool() );
        SocketAcceptorConfig defaultConfig = acceptor.getDefaultConfig();
        SocketSessionConfig sessionConfig = defaultConfig.getSessionConfig();
        sessionConfig.setSendBufferSize(sendBufferSize);
        sessionConfig.setReceiveBufferSize(receiveBufferSize);
        sessionConfig.setTcpNoDelay(true);
        defaultConfig.setThreadModel(ExecutorThreadModel.getInstance("jmemcached"));
        acceptor.bind(this.addr, new ServerSessionHandler(cache, memcachedVersion, verbose, idleTime));
        ProtocolCodecFactory codec = new MemcachedProtocolCodecFactory();
        acceptor.getFilterChain().addFirst("protocolFilter", new ProtocolCodecFilter(codec));
        logger.info("Listening on " + String.valueOf(addr.getHostName()) + ":" + this.port);
    }

    public void stop() {
        if (acceptor != null) {
            logger.info("Stopping daemon");
            acceptor.unbindAll();
        }
    }

    public static void setMemcachedVersion(String memcachedVersion) {
        MemCacheDaemon.memcachedVersion = memcachedVersion;
    }

    public void setReceiveBufferSize(int receiveBufferSize) {
        this.receiveBufferSize = receiveBufferSize;
    }

    public void setSendBufferSize(int sendBufferSize) {
        this.sendBufferSize = sendBufferSize;
    }

    public void setVerbose(boolean verbose) {
        this.verbose = verbose;
    }

    public void setIdleTime(int idleTime) {
        this.idleTime = idleTime;
    }

    public void setAddr(InetSocketAddress addr) {
        this.addr = addr;
        this.port = addr.getPort();
    }

    public void setPort(int port) {
        this.port = port;
    }

    public Cache getCache() {
        return cache;
    }

    public void setCache(Cache cache) {
        this.cache = cache;
    }
}