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141 lines
5.4 KiB
141 lines
5.4 KiB
//vsdParser.java
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//------------------------
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//part of YaCy
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//(C) by Michael Peter Christen; mc@yacy.net
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//first published on http://www.anomic.de
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//Frankfurt, Germany, 2005
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//
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//this file is contributed by Marc Nause
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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//This program is free software; you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation; either version 2 of the License, or
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//(at your option) any later version.
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//
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//This program 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 General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with this program; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package net.yacy.document.parser;
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import java.io.InputStream;
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import java.nio.charset.StandardCharsets;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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import net.yacy.cora.document.id.AnchorURL;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.document.AbstractParser;
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import net.yacy.document.Document;
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import net.yacy.document.Parser;
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import net.yacy.document.VocabularyScraper;
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import org.apache.poi.hdgf.extractor.VisioTextExtractor;
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import org.apache.poi.hpsf.SummaryInformation;
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public class vsdParser extends AbstractParser implements Parser {
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public vsdParser() {
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super("Microsoft Visio Parser");
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this.SUPPORTED_EXTENSIONS.add("vsd");
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this.SUPPORTED_EXTENSIONS.add("vss");
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this.SUPPORTED_EXTENSIONS.add("vst");
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this.SUPPORTED_EXTENSIONS.add("vdx");
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this.SUPPORTED_EXTENSIONS.add("vtx");
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this.SUPPORTED_MIME_TYPES.add("application/visio");
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this.SUPPORTED_MIME_TYPES.add("application/x-visio");
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this.SUPPORTED_MIME_TYPES.add("application/vnd.visio");
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this.SUPPORTED_MIME_TYPES.add("application/visio.drawing");
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this.SUPPORTED_MIME_TYPES.add("application/vsd");
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this.SUPPORTED_MIME_TYPES.add("application/x-vsd");
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this.SUPPORTED_MIME_TYPES.add("image/x-vsd");
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this.SUPPORTED_MIME_TYPES.add("zz-application/zz-winassoc-vsd");
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}
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/*
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* parses the source documents and returns a plasmaParserDocument containing
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* all extracted information about the parsed document
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*/
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@Override
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public Document[] parse(
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final AnchorURL location,
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final String mimeType,
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final String charset,
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final VocabularyScraper scraper,
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final int timezoneOffset,
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final InputStream source)
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throws Parser.Failure, InterruptedException {
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try {
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String contents = "";
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SummaryInformation summary = null;
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try {
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final VisioTextExtractor extractor = new VisioTextExtractor(source);
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contents = extractor.getText();
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summary = extractor.getSummaryInformation();
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} catch (final Exception e) {
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ConcurrentLog.warn("vsdParser", e.getMessage());
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}
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String author = null;
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String[] keywords = null;
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String title = null;
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List<String> descriptions = null;
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Date lastModified = null;
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if (summary != null) {
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author = summary.getAuthor();
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if (summary.getKeywords() != null) {
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keywords = summary.getKeywords().split("[ ,;]");
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}
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title = summary.getTitle();
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final String subject = summary.getSubject();
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if (subject != null && !subject.isEmpty()) {
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descriptions = new ArrayList<String>();
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descriptions.add(subject);
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}
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lastModified = summary.getLastSaveDateTime();
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}
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if (title == null) title = location.toNormalform(true);
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// As the result of parsing this function must return a plasmaParserDocument object
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return new Document[]{new Document(
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location, // url of the source document
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mimeType, // the documents mime type
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StandardCharsets.UTF_8.name(), // charset of the document text
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this,
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null, // language
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keywords,
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singleList(title),
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author,
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null,
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null, // an array of section headlines
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descriptions, // an abstract
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0.0d, 0.0d,
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contents, // the parsed document text
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null, // a map of extracted anchors
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null,
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null, // a treeset of image URLs
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false,
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lastModified)};
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} catch (final Exception e) {
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if (e instanceof InterruptedException) throw (InterruptedException) e;
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// if an unexpected error occures just log the error and raise a new ParserException
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final String errorMsg = "Unable to parse the vsd document '" + location + "':" + e.getMessage();
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AbstractParser.log.severe(errorMsg);
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throw new Parser.Failure(errorMsg, location);
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}
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}
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} |