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📄 jerichoextractorhtmltest.java

📁 Heritrix是一个开源,可扩展的web爬虫项目。Heritrix设计成严格按照robots.txt文件的排除指示和META robots标签。
💻 JAVA
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/* JerichoExtractorHTMLTest * * Copyright (C) 2006 Olaf Freyer * * This file is part of the Heritrix web crawler (crawler.archive.org). * * Heritrix is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * any later version. * * Heritrix is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU Lesser Public License for more details. * * You should have received a copy of the GNU Lesser Public License * along with Heritrix; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA *  *  */package org.archive.crawler.extractor;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.net.URL;import java.util.Collection;import java.util.Iterator;import javax.management.AttributeNotFoundException;import javax.management.InvalidAttributeValueException;import javax.management.MBeanException;import javax.management.ReflectionException;import org.apache.commons.collections.CollectionUtils;import org.apache.commons.collections.Predicate;import org.apache.commons.httpclient.URIException;import org.archive.crawler.datamodel.CoreAttributeConstants;import org.archive.crawler.datamodel.CrawlOrder;import org.archive.crawler.datamodel.CrawlURI;import org.archive.crawler.settings.MapType;import org.archive.crawler.settings.SettingsHandler;import org.archive.crawler.settings.XMLSettingsHandler;import org.archive.net.UURI;import org.archive.net.UURIFactory;import org.archive.util.HttpRecorder;/** * Test html extractor. * * @author stack * @version $Revision: 4703 $, $Date: 2006-10-18 15:26:56 +0000 (Wed, 18 Oct 2006) $ */public class JerichoExtractorHTMLTestextends ExtractorHTMLTestimplements CoreAttributeConstants {    private final String ARCHIVE_DOT_ORG = "archive.org";    private final String LINK_TO_FIND = "http://www.hewlett.org/";    private HttpRecorder recorder = null;    private JerichoExtractorHTML extractor = null;        protected JerichoExtractorHTML createExtractor()    throws InvalidAttributeValueException, AttributeNotFoundException,    MBeanException, ReflectionException {        // Hack in a settings handler.  Do this by adding this extractor        // to the order file (I'm adding it to a random MapType; seemingly        // can only add to MapTypes post-construction). This takes care        // of setting a valid SettingsHandler into the ExtractorHTML (This        // shouldn't be so difficult).  Of note, the order file below is        // not written to disk.        final String name = this.getClass().getName();        SettingsHandler handler = new XMLSettingsHandler(            new File(getTmpDir(), name + ".order.xml"));        handler.initialize();        return (JerichoExtractorHTML)((MapType)handler.getOrder().            getAttribute(CrawlOrder.ATTR_RULES)).addElement(handler.                getSettingsObject(null), new JerichoExtractorHTML(name));    }        protected void setUp() throws Exception {        super.setUp();        this.extractor = createExtractor();        final boolean USE_NET = false;        URL url = null;        if (USE_NET) {            url = new URL("http://" + this.ARCHIVE_DOT_ORG);        } else {            File f = new File(getTmpDir(), this.ARCHIVE_DOT_ORG + ".html");            url = new URL("file://" + f.getAbsolutePath());            FileOutputStream fos = new FileOutputStream(f);            fos.write(("<html><head><title>test</title><body>" +                "<a href=" + this.LINK_TO_FIND + ">Hewlett Foundation</a>" +                "</body></html>").getBytes());            fos.flush();            fos.close();        }        this.recorder = HttpRecorder.wrapInputStreamWithHttpRecord(getTmpDir(),            this.getClass().getName(), url.openStream(), null);    }    public void testInnerProcess() throws IOException {        UURI uuri = UURIFactory.getInstance("http://" + this.ARCHIVE_DOT_ORG);        CrawlURI curi = setupCrawlURI(this.recorder, uuri.toString());        this.extractor.innerProcess(curi);        Collection links = curi.getOutLinks();        boolean foundLinkToHewlettFoundation = false;        for (Iterator i = links.iterator(); i.hasNext();) {            Link link = (Link)i.next();            if (link.getDestination().toString().equals(this.LINK_TO_FIND)) {                foundLinkToHewlettFoundation = true;                break;            }        }        assertTrue("Did not find gif url", foundLinkToHewlettFoundation);    }        private CrawlURI setupCrawlURI(HttpRecorder rec, String url)    		throws URIException {        CrawlURI curi = new CrawlURI(UURIFactory.getInstance(url));        curi.setContentSize(this.recorder.getRecordedInput().getSize());        curi.setContentType("text/html");        curi.setFetchStatus(200);        curi.setHttpRecorder(rec);        // Fake out the extractor that this is a HTTP transaction.        curi.putObject(CoreAttributeConstants.A_HTTP_TRANSACTION,            new Object());        return curi;    }        /**     * Test a forms link extraction     *      * @throws URIException     */    public void testFormsLink() throws URIException {        CrawlURI curi =            new CrawlURI(UURIFactory.getInstance("http://www.example.org"));        CharSequence cs =         	"<form name=\"testform\" method=\"POST\" action=\"redirect_me?form=true\"> " +        	"  <INPUT TYPE=CHECKBOX NAME=\"checked[]\" VALUE=\"1\" CHECKED> "+        	"  <INPUT TYPE=CHECKBOX NAME=\"unchecked[]\" VALUE=\"1\"> " +        	"  <select name=\"selectBox\">" +        	"    <option value=\"selectedOption\" selected>option1</option>" +        	"    <option value=\"nonselectedOption\">option2</option>" +        	"  </select>" +        	"  <input type=\"submit\" name=\"test\" value=\"Go\">" +        	"</form>";           this.extractor.extract(curi,cs);        curi.getOutLinks();        assertTrue(CollectionUtils.exists(curi.getOutLinks(), new Predicate() {            public boolean evaluate(Object object) {                return ((Link) object).getDestination().toString().indexOf(                        "/redirect_me?form=true&checked[]=1&unchecked[]=&selectBox=selectedOption&test=Go")>=0;            }        }));    }}

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