/**   
 * License Agreement for OpenSearchServer
 *
 * Copyright (C) 2010-2012 Emmanuel Keller / Jaeksoft
 * 
 * http://www.open-search-server.com
 * 
 * This file is part of OpenSearchServer.
 *
 * OpenSearchServer is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 * OpenSearchServer 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with OpenSearchServer. 
 *  If not, see <http://www.gnu.org/licenses/>.
 **/

package com.jaeksoft.searchlib.parser;

import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;

import com.ibm.icu.text.CharsetDetector;
import com.ibm.icu.text.CharsetMatch;
import com.jaeksoft.searchlib.SearchLibException;
import com.jaeksoft.searchlib.analysis.ClassPropertyEnum;
import com.jaeksoft.searchlib.analysis.LanguageEnum;
import com.jaeksoft.searchlib.streamlimiter.StreamLimiter;

public class TextParser extends Parser {

	private static ParserFieldEnum[] fl = { ParserFieldEnum.content };

	public TextParser() {
		super(fl);
	}

	@Override
	public void initProperties() throws SearchLibException {
		super.initProperties();
		addProperty(ClassPropertyEnum.SIZE_LIMIT, "0", null);
	}

	@Override
	protected void parseContent(StreamLimiter streamLimiter, LanguageEnum lang)
			throws IOException {
		CharsetDetector detector = new CharsetDetector();
		InputStream is = streamLimiter.getNewInputStream();
		detector.setText(is);
		CharsetMatch match = detector.detect();
		String content = null;
		if (match != null)
			content = match.getString();
		else {
			IOUtils.closeQuietly(is);
			is = streamLimiter.getNewInputStream();
			content = IOUtils.toString(is);
		}
		if (is != null)
			IOUtils.closeQuietly(is);
		addField(ParserFieldEnum.content, content);
		langDetection(10000, ParserFieldEnum.content);
	}
}

/**   
 * License Agreement for OpenSearchServer
 *
 * Copyright (C) 2010-2012 Emmanuel Keller / Jaeksoft
 * 
 * http://www.open-search-server.com
 * 
 * This file is part of OpenSearchServer.
 *
 * OpenSearchServer is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 * OpenSearchServer 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with OpenSearchServer. 
 *  If not, see <http://www.gnu.org/licenses/>.
 **/

package com.jaeksoft.searchlib.parser;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;

import com.ibm.icu.text.CharsetDetector;
import com.ibm.icu.text.CharsetMatch;
import com.jaeksoft.searchlib.SearchLibException;
import com.jaeksoft.searchlib.analysis.ClassPropertyEnum;
import com.jaeksoft.searchlib.analysis.LanguageEnum;
import com.jaeksoft.searchlib.streamlimiter.StreamLimiter;

public class TextParser extends Parser {

	private static ParserFieldEnum[] fl = { ParserFieldEnum.content };

	public TextParser() {
		super(fl);
	}

	@Override
	public void initProperties() throws SearchLibException {
		super.initProperties();
		addProperty(ClassPropertyEnum.SIZE_LIMIT, "0", null);
	}

	@Override
	protected void parseContent(StreamLimiter streamLimiter, LanguageEnum lang)
			throws IOException {
		CharsetDetector detector = new CharsetDetector();
		InputStream is = new BufferedInputStream(
				streamLimiter.getNewInputStream());
		detector.setText(is);
		CharsetMatch match = detector.detect();
		String content = null;
		if (match != null)
			content = match.getString();
		else {
			IOUtils.closeQuietly(is);
			is = streamLimiter.getNewInputStream();
			content = IOUtils.toString(is);
		}
		if (is != null)
			IOUtils.closeQuietly(is);
		addField(ParserFieldEnum.content, content);
		langDetection(10000, ParserFieldEnum.content);
	}
}

Fix an issue with charset detector