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The source code// $Header: /home/cvs/jakarta-jmeter/src/htmlparser/org/htmlparser/tests/InstanceofPerformanceTest.java,v 1.2 2004/02/10 13:41:08 woolfel Exp $ /* * ==================================================================== * Copyright 2002-2004 The Apache Software Foundation. * * 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. * */ // The developers of JMeter and Apache are greatful to the developers // of HTMLParser for giving Apache Software Foundation a non-exclusive // license. The performance benefits of HTMLParser are clear and the // users of JMeter will benefit from the hard work the HTMLParser // team. For detailed information about HTMLParser, the project is // hosted on sourceforge at http://htmlparser.sourceforge.net/. // // HTMLParser was originally created by Somik Raha in 2000. Since then // a healthy community of users has formed and helped refine the // design so that it is able to tackle the difficult task of parsing // dirty HTML. Derrick Oswald is the current lead developer and was kind // enough to assist JMeter. package org.htmlparser.tests; import java.util.Enumeration; import java.util.Vector; import org.htmlparser.Node; import org.htmlparser.Parser; import org.htmlparser.tags.FormTag; import org.htmlparser.tests.scannersTests.FormScannerTest; import org.htmlparser.util.NodeIterator; import org.htmlparser.util.SimpleNodeIterator; public class InstanceofPerformanceTest { FormTag formTag; Vector formChildren; public void setUp() throws Exception { Parser parser = Parser.createParser(FormScannerTest.FORM_HTML); parser.registerScanners(); NodeIterator e = parser.elements(); Node node = e.nextNode(); formTag = (FormTag) node; formChildren = new Vector(); for (SimpleNodeIterator se = formTag.children(); se.hasMoreNodes();) { formChildren.addElement(se.nextNode()); } } public void doInstanceofTest(long[] time, int index, long numTimes) { System.out.println("doInstanceofTest(" + index + ")"); long start = System.currentTimeMillis(); for (long i = 0; i < numTimes; i++) { for (Enumeration e = formChildren.elements(); e.hasMoreElements();) { Node node = (Node) e.nextElement(); } } long end = System.currentTimeMillis(); time[index] = end - start; } public void doGetTypeTest(long[] time, int index, long numTimes) { System.out.println("doGetTypeTest(" + index + ")"); long start = System.currentTimeMillis(); for (long i = 0; i < numTimes; i++) { for (SimpleNodeIterator e = formTag.children(); e.hasMoreNodes();) { Node node = e.nextNode(); } } long end = System.currentTimeMillis(); time[index] = end - start; } public void perform() { int numTimes = 30; long time1[] = new long[numTimes], time2[] = new long[numTimes]; for (int i = 0; i < numTimes; i++) doInstanceofTest(time1, i, i * 10000); for (int i = 0; i < numTimes; i++) doGetTypeTest(time2, i, i * 10000); print(time1, time2); } public void print(long[] time1, long[] time2) { for (int i = 0; i < time1.length; i++) { System.out.println( i * 1000000 + ":" + "," + time1[i] + " " + time2[i]); } } public static void main(String[] args) throws Exception { InstanceofPerformanceTest test = new InstanceofPerformanceTest(); test.setUp(); test.perform(); } } |
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