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127 lines
4.7 KiB
127 lines
4.7 KiB
//xlsParser.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 Tim Riemann
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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.IOException;
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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.List;
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import net.yacy.cora.document.id.DigestURL;
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import net.yacy.cora.document.id.MultiProtocolURL;
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import net.yacy.cora.util.CommonPattern;
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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.hpsf.SummaryInformation;
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import org.apache.poi.hssf.extractor.ExcelExtractor;
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import org.apache.poi.poifs.filesystem.POIFSFileSystem;
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public class xlsParser extends AbstractParser implements Parser {
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public xlsParser(){
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super("Microsoft Excel Parser");
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this.SUPPORTED_EXTENSIONS.add("xls");
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this.SUPPORTED_EXTENSIONS.add("xla");
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this.SUPPORTED_MIME_TYPES.add("application/msexcel");
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this.SUPPORTED_MIME_TYPES.add("application/excel");
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this.SUPPORTED_MIME_TYPES.add("application/vnd.ms-excel");
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this.SUPPORTED_MIME_TYPES.add("application/x-excel");
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this.SUPPORTED_MIME_TYPES.add("application/x-msexcel");
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this.SUPPORTED_MIME_TYPES.add("application/x-ms-excel");
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this.SUPPORTED_MIME_TYPES.add("application/x-dos_ms_excel");
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this.SUPPORTED_MIME_TYPES.add("application/xls");
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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 DigestURL 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) throws Parser.Failure,
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InterruptedException {
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try {
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//create a new org.apache.poi.poifs.filesystem.Filesystem
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final POIFSFileSystem poifs = new POIFSFileSystem(source);
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ExcelExtractor exceldoc = new ExcelExtractor(poifs);
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exceldoc.setIncludeSheetNames(false); // exclude sheet names from getText() as also empty sheet names are returned
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SummaryInformation sumInfo = exceldoc.getSummaryInformation();
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String title = sumInfo.getTitle();
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if (title == null || title.isEmpty()) title = MultiProtocolURL.unescape(location.getFileName());
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final String subject = sumInfo.getSubject();
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List<String> descriptions = new ArrayList<String>();
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if (subject != null && !subject.isEmpty()) descriptions.add(subject);
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// get keywords (for yacy as array)
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final String keywords = sumInfo.getKeywords();
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final String[] keywlist;
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if (keywords != null && !keywords.isEmpty()) {
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keywlist = CommonPattern.COMMA.split(keywords);
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} else keywlist = null;
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Document[] retdocs = new Document[]{new Document(
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location,
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mimeType,
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StandardCharsets.UTF_8.name(),
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this,
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null,
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keywlist,
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singleList(title),
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sumInfo.getAuthor(),
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exceldoc.getDocSummaryInformation().getCompany(),
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null,
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descriptions,
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0.0d, 0.0d,
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exceldoc.getText(),
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null,
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null,
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null,
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false,
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sumInfo.getLastSaveDateTime())};
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return retdocs;
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} catch (IOException ex1) {
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throw new Parser.Failure(ex1.getMessage(), location);
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}
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}
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}
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