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135 lines
4.7 KiB
135 lines
4.7 KiB
//docParser.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 Martin Thelian
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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.io.UnsupportedEncodingException;
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import java.util.HashSet;
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import java.util.Set;
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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.Idiom;
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import net.yacy.document.ParserException;
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import net.yacy.kelondro.data.meta.DigestURI;
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import org.apache.poi.hwpf.extractor.WordExtractor;
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public class docParser extends AbstractParser implements Idiom {
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/**
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* a list of mime types that are supported by this parser class
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* @see #getSupportedMimeTypes()
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*/
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public static final Set<String> SUPPORTED_MIME_TYPES = new HashSet<String>();
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public static final Set<String> SUPPORTED_EXTENSIONS = new HashSet<String>();
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static {
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SUPPORTED_EXTENSIONS.add("doc");
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SUPPORTED_MIME_TYPES.add("application/msword");
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SUPPORTED_MIME_TYPES.add("application/doc");
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SUPPORTED_MIME_TYPES.add("appl/text");
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SUPPORTED_MIME_TYPES.add("application/vnd.msword");
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SUPPORTED_MIME_TYPES.add("application/vnd.ms-word");
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SUPPORTED_MIME_TYPES.add("application/winword");
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SUPPORTED_MIME_TYPES.add("application/word");
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SUPPORTED_MIME_TYPES.add("application/x-msw6");
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SUPPORTED_MIME_TYPES.add("application/x-msword");
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}
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public docParser() {
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super("Word Document Parser");
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}
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public Document parse(final DigestURI location, final String mimeType, final String charset, final InputStream source) throws ParserException, InterruptedException {
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final WordExtractor extractor;
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try {
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extractor = new WordExtractor(source);
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} catch (Exception e) {
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throw new ParserException("error in docParser, WordTextExtractorFactory: " + e.getMessage(), location);
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}
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StringBuilder contents = new StringBuilder();
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try {
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contents.append(extractor.getText().trim());
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contents.append(" ");
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contents.append(extractor.getHeaderText());
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contents.append(" ");
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contents.append(extractor.getFooterText());
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} catch (Exception e) {
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throw new ParserException("error in docParser, getText: " + e.getMessage(), location);
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}
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String title = (contents.length() > 240) ? contents.substring(0,240) : contents.toString().trim();
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title.replaceAll("\r"," ").replaceAll("\n"," ").replaceAll("\t"," ").trim();
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if (title.length() > 80) title = title.substring(0, 80);
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int l = title.length();
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while (true) {
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title = title.replaceAll(" ", " ");
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if (title.length() == l) break;
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l = title.length();
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}
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Document theDoc;
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try {
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theDoc = new Document(
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location,
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mimeType,
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"UTF-8",
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null,
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null,
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title,
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"", // TODO: AUTHOR
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null,
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null,
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contents.toString().getBytes("UTF-8"),
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null,
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null);
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} catch (UnsupportedEncodingException e) {
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throw new ParserException("error in docParser, getBytes: " + e.getMessage(), location);
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}
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return theDoc;
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}
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public Set<String> supportedMimeTypes() {
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return SUPPORTED_MIME_TYPES;
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}
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public Set<String> supportedExtensions() {
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return SUPPORTED_EXTENSIONS;
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}
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@Override
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public void reset() {
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// Nothing todo here at the moment
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super.reset();
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}
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}
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