mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-21 00:00:13 +02:00
5fc6524ca8
later - added abstract add, delete, get methods in the triplestore - added generation of triples after auto-annotation - migrated all MultiProtocolURI objects to DigestURI in the parser since the url hash is needed as subject value in the triples in the triple store
140 lines
5.5 KiB
Java
140 lines
5.5 KiB
Java
//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 net.yacy.cora.document.UTF8;
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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.kelondro.data.meta.DigestURI;
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import net.yacy.kelondro.logging.Log;
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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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public Document[] parse(final DigestURI location, final String mimeType, final String charset, final InputStream source)
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throws Parser.Failure, InterruptedException {
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Document theDoc = null;
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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 (Exception e) {
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Log.logWarning("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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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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}
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String abstrct = null;
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abstrct = ((contents.length() > 80)? contents.substring(0, 80) : contents.trim()).
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replaceAll("\r\n"," ").
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replaceAll("\n"," ").
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replaceAll("\r"," ").
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replaceAll("\t"," ");
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if (title == null) {
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title = abstrct;
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}
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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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"UTF-8", // 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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title,
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author,
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"",
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null, // an array of section headlines
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abstrct, // an abstract
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0.0f, 0.0f,
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UTF8.getBytes(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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} 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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this.log.logSevere(errorMsg);
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throw new Parser.Failure(errorMsg, location);
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} finally {
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if (theDoc == null) {
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// if an unexpected error occures just log the error and raise a new Parser.Failure
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final String errorMsg = "Unable to parse the vsd document '" + location + "': possibly out of memory";
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this.log.logSevere(errorMsg);
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throw new Parser.Failure(errorMsg, location);
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}
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}
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}
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} |