/*
* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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/*
* This source code is provided to illustrate the usage of a given feature
* or technique and has been deliberately simplified. Additional steps
* required for a production-quality application, such as security checks,
* input validation and proper error handling, might not be present in
* this sample code.
*/
import java.util.*;
import java.net.*;
import java.io.*;
public class Client
{
private final static int BYTESPEROP= PollingServer.BYTESPEROP;
private final static int PORTNUM = PollingServer.PORTNUM;
private final static int MAXCONN = PollingServer.MAXCONN;
private static Socket[] sockArr = new Socket[MAXCONN];
private static int totalConn =10;
private static int bytesToSend =1024000;
private static int connections = 0;
private static int sends = 0;
public static void main (String args[]) {
String host = "localhost";
if (args.length < 1 || args.length > 3) {
System.out.println("Usage : java Client <num_connects>");
System.out.println(" | java Client <num_connects> <server_name>");
System.out.println(" | java Client <num_connects> <server_name>" +
" <max_Kbytes>");
System.exit(-1);
}
if (args.length >= 1)
totalConn = java.lang.Integer.valueOf(args[0]).intValue();
if (args.length >= 2)
host = args[1];
if (args.length == 3)
bytesToSend = java.lang.Integer.valueOf(args[2]).intValue() * 1024;
if (totalConn <= 0 || totalConn > MAXCONN) {
System.out.println("Connections out of range. Terminating.");
System.exit(-1);
}
System.out.println("Using " + totalConn + " connections for sending " +
bytesToSend + " bytes to " + host);
try {
Socket ctrlSock = new Socket (host, PORTNUM);
PrintStream ctrlStream =
new PrintStream(ctrlSock.getOutputStream());
ctrlStream.println(bytesToSend);
ctrlStream.println(totalConn);
while (connections < totalConn ) {
sockArr[connections] = new Socket (host, PORTNUM);
connections ++;
}
System.out.println("Connections made : " + connections);
byte[] buff = new byte[BYTESPEROP];
for (int i = 0; i < BYTESPEROP; i++) // just put some junk in!
buff[i] = (byte) i;
Random rand = new Random(5321L);
while (sends < bytesToSend/BYTESPEROP) {
int idx = java.lang.Math.abs(rand.nextInt()) % totalConn;
sockArr[idx].getOutputStream().write(buff,0,BYTESPEROP);
sends++;
}
// Wait for server to say done.
int bytes = ctrlSock.getInputStream().read(buff, 0, BYTESPEROP);
System.out.println (" Total connections : " + connections +
" Bytes sent : " + sends * BYTESPEROP +
"...Done!");
} catch (Exception e) { e.printStackTrace(); }
}
}