bundestagswahl.benchmark.BWBenchmark.java Source code

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Here is the source code for bundestagswahl.benchmark.BWBenchmark.java

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/*
 * ====================================================================
 * 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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */
package bundestagswahl.benchmark;

import java.util.Scanner;
import java.util.concurrent.CountDownLatch;

import org.apache.http.client.HttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.PoolingClientConnectionManager;
import org.apache.http.params.CoreConnectionPNames;

public class BWBenchmark {
    static String serverUrl;
    static int numberTerminals;
    static int numberRequests;
    static double requestDelay;

    static double[] resultTime;

    public static void main(String[] args) throws Exception {

        resultTime = new double[6];

        Scanner scanner = new Scanner(System.in);
        System.out.print("Please enter URL: ");
        serverUrl = scanner.nextLine();
        System.out.print("Please enter number of terminals: ");
        numberTerminals = scanner.nextInt();
        System.out.print("Please enter number of requests: ");
        numberRequests = scanner.nextInt();
        System.out.print("Please enter delay between two requests in seconds: ");
        requestDelay = scanner.nextDouble();
        scanner.close();

        PoolingClientConnectionManager cm = new PoolingClientConnectionManager();
        cm.setMaxTotal(numberTerminals);
        HttpClient httpclient = new DefaultHttpClient(cm);
        httpclient.getParams().setIntParameter(CoreConnectionPNames.SO_TIMEOUT, 300000)
                .setIntParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 300000)
                .setIntParameter(CoreConnectionPNames.SOCKET_BUFFER_SIZE, 8 * 1024)
                .setBooleanParameter(CoreConnectionPNames.TCP_NODELAY, true);
        try {
            final CountDownLatch latch = new CountDownLatch(numberTerminals);
            for (int i = 0; i < numberTerminals; i++) {
                BenchmarkTerminal terminal = new BenchmarkTerminal(httpclient, latch, serverUrl, numberRequests,
                        requestDelay);
                terminal.start();
            }
            latch.await();
            httpclient.getConnectionManager().shutdown();
        } finally {

        }

        printResultTimes();
        System.out.println(" ");
        System.out.println("Done");
    }

    public static synchronized void addResultTime(int query, double time) {
        resultTime[query] += time;
    }

    public static synchronized void printResultTimes() {
        for (int i = 0; i < 6; i++) {
            System.out.println(
                    "Query " + Integer.toString(i + 1) + " : " + resultTime[i] / numberRequests / 1000 + " s");
        }
    }

}