com.jaeksoft.searchlib.parser.XlsxParser.java Source code

Introduction

Here is the source code for com.jaeksoft.searchlib.parser.XlsxParser.java

Source

/**   
 * License Agreement for OpenSearchServer
 *
 * Copyright (C) 2010-2015 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 org.apache.poi.POIXMLProperties.CoreProperties;
import org.apache.poi.xssf.extractor.XSSFExcelExtractor;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import com.jaeksoft.searchlib.SearchLibException;
import com.jaeksoft.searchlib.analysis.ClassPropertyEnum;
import com.jaeksoft.searchlib.analysis.LanguageEnum;
import com.jaeksoft.searchlib.streamlimiter.StreamLimiter;
import com.jaeksoft.searchlib.util.IOUtils;
import com.jaeksoft.searchlib.util.StringUtils;

public class XlsxParser extends Parser {

    public static final String[] DEFAULT_MIMETYPES = {
            "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" };

    public static final String[] DEFAULT_EXTENSIONS = { "xlsx" };

    private static ParserFieldEnum[] fl = { ParserFieldEnum.parser_name, ParserFieldEnum.title,
            ParserFieldEnum.creator, ParserFieldEnum.subject, ParserFieldEnum.description, ParserFieldEnum.content,
            ParserFieldEnum.lang, ParserFieldEnum.lang_method };

    public XlsxParser() {
        super(fl);
    }

    @Override
    public void initProperties() throws SearchLibException {
        super.initProperties();
        addProperty(ClassPropertyEnum.SIZE_LIMIT, "0", null, 20, 1);
    }

    @Override
    protected void parseContent(StreamLimiter streamLimiter, LanguageEnum lang) throws IOException {

        XSSFWorkbook workbook = new XSSFWorkbook(streamLimiter.getNewInputStream());
        XSSFExcelExtractor excelExtractor = null;
        try {
            excelExtractor = new XSSFExcelExtractor(workbook);
            ParserResultItem result = getNewParserResultItem();

            CoreProperties info = excelExtractor.getCoreProperties();
            if (info != null) {
                result.addField(ParserFieldEnum.title, info.getTitle());
                result.addField(ParserFieldEnum.creator, info.getCreator());
                result.addField(ParserFieldEnum.subject, info.getSubject());
                result.addField(ParserFieldEnum.description, info.getDescription());
                result.addField(ParserFieldEnum.keywords, info.getKeywords());
            }

            excelExtractor.setIncludeCellComments(true);
            excelExtractor.setIncludeHeadersFooters(true);
            excelExtractor.setIncludeSheetNames(true);
            String content = excelExtractor.getText();
            result.addField(ParserFieldEnum.content, StringUtils.replaceConsecutiveSpaces(content, " "));

            result.langDetection(10000, ParserFieldEnum.content);
        } finally {
            IOUtils.close(excelExtractor);
        }

    }
}