Tomcat example source code file (SocketNioReceive.java)

This example Tomcat source code file (SocketNioReceive.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

channeldata, channeldata, decimalformat, member, memberimpl, messagelistener, mylist, mylist, nioreceiver, nioreceiver, object, object, socketnioreceive, text, throwable

The Tomcat SocketNioReceive.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.catalina.tribes.test.transport;

import java.text.DecimalFormat;

import org.apache.catalina.tribes.ChannelMessage;
import org.apache.catalina.tribes.Member;
import org.apache.catalina.tribes.MessageListener;
import org.apache.catalina.tribes.io.ChannelData;
import org.apache.catalina.tribes.io.XByteBuffer;
import org.apache.catalina.tribes.membership.MemberImpl;
import org.apache.catalina.tribes.transport.nio.NioReceiver;

public class SocketNioReceive {
    static int count = 0;
    static int accept = 0;
    static long start = 0;
    static double mb = 0;
    static int len = 0;
    static DecimalFormat df = new DecimalFormat("##.00");
    static double seconds = 0;

    protected static Object mutex = new Object();
    public static void main(String[] args) throws Exception {
        Member mbr = new MemberImpl("localhost", 9999, 0);
        ChannelData data = new ChannelData();
        data.setAddress(mbr);
        byte[] buf = new byte[8192 * 4];
        data.setMessage(new XByteBuffer(buf, false));
        buf = XByteBuffer.createDataPackage(data);
        len = buf.length;
        NioReceiver receiver = new NioReceiver();
        receiver.setPort(9999);
        receiver.setHost("localhost");
        MyList list = new MyList();
        receiver.setMessageListener(list);
        receiver.start();
        System.out.println("Listening on 9999");
        while (true) {
            try {
                synchronized (mutex) {
                    mutex.wait(5000);
                    if ( start != 0 ) {
                        System.out.println("Throughput " + df.format(mb / seconds) + " MB/seconds, messages "+count+" accepts "+accept+", total "+mb+" MB.");
                    }
                }
            }catch (Throwable x) {
                x.printStackTrace();
            }
        }
    }
    
    public static class MyList implements MessageListener {
        boolean first = true;
        
        
        public void messageReceived(ChannelMessage msg) {
            if (first) {
                first = false;
                start = System.currentTimeMillis();
            }
            mb += ( (double) len) / 1024 / 1024;
            synchronized (this) {count++;}
            if ( ( (count) % 10000) == 0) {
                long time = System.currentTimeMillis();
                seconds = ( (double) (time - start)) / 1000;
                System.out.println("Throughput " + df.format(mb / seconds) + " MB/seconds, messages "+count+", total "+mb+" MB.");
            }
        }        

        public boolean accept(ChannelMessage msg) {
            synchronized (this) {accept++;}
            return true;
        }

    }
}