com.opensearchserver.extractor.parser.Docx.java Source code

Introduction

Here is the source code for com.opensearchserver.extractor.parser.Docx.java

Source

/**
 * Copyright 2014-2015 OpenSearchServer Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.opensearchserver.extractor.parser;

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

import org.apache.commons.io.IOUtils;
import org.apache.poi.POIXMLProperties.CoreProperties;
import org.apache.poi.xwpf.extractor.XWPFWordExtractor;
import org.apache.poi.xwpf.usermodel.XWPFDocument;

import com.opensearchserver.extractor.ParserAbstract;
import com.opensearchserver.extractor.ParserDocument;
import com.opensearchserver.extractor.ParserField;

public class Docx extends ParserAbstract {

    public static final String[] DEFAULT_MIMETYPES = {
            "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
            "application/vnd.openxmlformats-officedocument.wordprocessingml.template" };

    public static final String[] DEFAULT_EXTENSIONS = { "docx", "dotx" };

    final protected static ParserField TITLE = ParserField.newString("title", "The title of the document");

    final protected static ParserField CREATOR = ParserField.newString("creator", "The name of the creator");

    final protected static ParserField CREATION_DATE = ParserField.newDate("creation_date", null);

    final protected static ParserField MODIFICATION_DATE = ParserField.newDate("modification_date", null);

    final protected static ParserField DESCRIPTION = ParserField.newString("description", null);

    final protected static ParserField KEYWORDS = ParserField.newString("keywords", null);

    final protected static ParserField SUBJECT = ParserField.newString("subject", "The subject of the document");

    final protected static ParserField CONTENT = ParserField.newString("content", "The content of the document");

    final protected static ParserField LANG_DETECTION = ParserField.newString("lang_detection",
            "Detection of the language");

    final protected static ParserField[] FIELDS = { TITLE, CREATOR, CREATION_DATE, MODIFICATION_DATE, DESCRIPTION,
            KEYWORDS, SUBJECT, CONTENT, LANG_DETECTION };

    public Docx() {
    }

    @Override
    protected ParserField[] getParameters() {
        return null;
    }

    @Override
    protected ParserField[] getFields() {
        return FIELDS;
    }

    @Override
    protected String[] getDefaultExtensions() {
        return DEFAULT_EXTENSIONS;
    }

    @Override
    protected String[] getDefaultMimeTypes() {
        return DEFAULT_MIMETYPES;
    }

    @Override
    protected void parseContent(InputStream inputStream, String extension, String mimeType) throws IOException {

        XWPFDocument document = new XWPFDocument(inputStream);
        XWPFWordExtractor word = null;
        try {
            word = new XWPFWordExtractor(document);

            CoreProperties info = word.getCoreProperties();
            if (info != null) {
                metas.add(TITLE, info.getTitle());
                metas.add(CREATOR, info.getCreator());
                metas.add(CREATION_DATE, info.getCreated());
                metas.add(MODIFICATION_DATE, info.getModified());
                metas.add(SUBJECT, info.getSubject());
                metas.add(DESCRIPTION, info.getDescription());
                metas.add(KEYWORDS, info.getKeywords());
            }
            ParserDocument parserDocument = getNewParserDocument();
            parserDocument.add(CONTENT, word.getText());
            parserDocument.add(LANG_DETECTION, languageDetection(CONTENT, 10000));
        } finally {
            IOUtils.closeQuietly(word);
        }
    }
}