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/* Copyright 2003, 2004 Elliotte Rusty Harold
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This library is free software; you can redistribute it and/or modify
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it under the terms of version 2.1 of the GNU Lesser General Public
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License as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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Boston, MA 02111-1307 USA
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You can contact Elliotte Rusty Harold by sending e-mail to
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elharo@metalab.unc.edu. Please include the word "XOM" in the
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subject line. The XOM home page is located at http://www.xom.nu/
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.PipedReader;
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import java.io.PipedWriter;
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import java.io.Reader;
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import java.io.Writer;
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import nu.xom.Attribute;
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import nu.xom.Builder;
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import nu.xom.Element;
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import nu.xom.NodeFactory;
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import nu.xom.ParsingException;
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* Test that XOM can handle really big files.
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* @author Elliotte Rusty Harold
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public class MegaTest extends XOMTestCase {
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private Builder builder;
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private final static int expectedResult = 200000000;
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private int actualResult = 0;
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private Thread generator;
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public MegaTest(String name) {
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public static void main(String[] args) throws Exception {
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MegaTest test = new MegaTest("MegaTest");
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protected void setUp() throws IOException {
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PipedReader pin = new PipedReader();
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out = new PipedWriter(pin);
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in = new BufferedReader(pin);
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builder = new Builder(new MinimizingFactory());
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generator = new Generator();
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class Generator extends Thread {
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out.write("<?xml version='1.0'?>\n");
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out.write("<root>\n");
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for (int i = 0; i < expectedResult; i++) {
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out.write(" <data>1</data>\n");
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System.out.println(i / 10000);
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out.write("</root>\n");
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catch (IOException ex) {
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fail("threw IOException " + ex);
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public void testMegaFile()
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throws IOException, ParsingException {
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assertEquals(expectedResult, actualResult);
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private class MinimizingFactory extends NodeFactory {
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private Nodes empty = new Nodes();
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public Nodes makeComment(String data) {
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public Nodes finishMakingElement(Element element) {
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if (element.getQualifiedName().equals("data")) {
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actualResult += Integer.parseInt(element.getValue());
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return new Nodes(element);
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public Nodes makeAttribute(String name, String URI,
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String value, Attribute.Type type) {
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public Nodes makeDocType(String rootElementName,
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String publicID, String systemID) {
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public Nodes makeText(String data) {
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if ("".equals(data)) return empty;
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return super.makeText(data);
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public Nodes makeProcessingInstruction(
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String target, String data) {