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Java example source code file (TestHttpClient3.java)

This example source code file (TestHttpClient3.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 tags/keywords

complete, content, document, failed, getmethod, httpclient, inputstream, io, ioexception, server, software:\t, string, testhttpclient3, time, uri:\t\t

The TestHttpClient3.java example 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.
 * ====================================================================
 *
 * 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 org.apache.http.client.benchmark;

import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpVersion;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;

public class TestHttpClient3 {

    public static void main(String[] args) throws Exception {
        if (args.length < 2) {
            System.out.println("Usage: <target URI> ");
            System.exit(-1);
        }
        String targetURI = args[0];
        int n = Integer.parseInt(args[1]);
        
        HttpClient httpclient = new HttpClient();
        httpclient.getParams().setVersion(
                HttpVersion.HTTP_1_1);
        httpclient.getParams().setBooleanParameter(
                HttpMethodParams.USE_EXPECT_CONTINUE, false);
        httpclient.getHttpConnectionManager().getParams()
                .setStaleCheckingEnabled(false);
        
        GetMethod httpget = new GetMethod(targetURI);

        byte[] buffer = new byte[4096];
        
        long startTime;
        long finishTime;
        int successCount = 0;
        int failureCount = 0;
        String serverName = "unknown";
        long total = 0;
        long contentLen = 0;
        long totalContentLen = 0;
        
        startTime = System.currentTimeMillis();
        for (int i = 0; i < n; i++) {
            try {
                httpclient.executeMethod(httpget);
                InputStream instream = httpget.getResponseBodyAsStream();
                contentLen = 0;
                if (instream != null) {
                    int l = 0;
                    while ((l = instream.read(buffer)) != -1) {
                        total += l;
                        contentLen += l;
                    }
                }
                successCount++;
                totalContentLen += contentLen;
            } catch (IOException ex) {
                failureCount++;
            } finally {
                httpget.releaseConnection();
            }
        }
        finishTime = System.currentTimeMillis();
        
        Header header = httpget.getResponseHeader("Server");
        if (header != null) {
            serverName = header.getValue();
        }
        
        float totalTimeSec = (float) (finishTime - startTime) / 1000;
        float reqsPerSec = (float) successCount / totalTimeSec; 
        float timePerReqMs = (float) (finishTime - startTime) / (float) successCount; 
        
        System.out.print("Server Software:\t");
        System.out.println(serverName);
        System.out.println();
        System.out.print("Document URI:\t\t");
        System.out.println(targetURI);
        System.out.print("Document Length:\t");
        System.out.print(contentLen);
        System.out.println(" bytes");
        System.out.println();
        System.out.print("Time taken for tests:\t");
        System.out.print(totalTimeSec);
        System.out.println(" seconds");
        System.out.print("Complete requests:\t");
        System.out.println(successCount);
        System.out.print("Failed requests:\t");
        System.out.println(failureCount);
        System.out.print("Content transferred:\t");
        System.out.print(total);
        System.out.println(" bytes");
        System.out.print("Requests per second:\t");
        System.out.print(reqsPerSec);
        System.out.println(" [#/sec] (mean)");
        System.out.print("Time per request:\t");
        System.out.print(timePerReqMs);
        System.out.println(" [ms] (mean)");
    }

}

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