com.liferay.portal.test.randomizerbumpers.TikaSafeRandomizerBumper.java Source code

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Here is the source code for com.liferay.portal.test.randomizerbumpers.TikaSafeRandomizerBumper.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.portal.test.randomizerbumpers;

import com.liferay.petra.string.StringBundler;
import com.liferay.petra.string.StringPool;
import com.liferay.portal.kernel.io.DummyWriter;
import com.liferay.portal.kernel.io.unsync.UnsyncByteArrayInputStream;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.test.ReflectionTestUtil;
import com.liferay.portal.kernel.test.randomizerbumpers.RandomizerBumper;
import com.liferay.portal.util.FileImpl;

import org.apache.tika.config.TikaConfig;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.AutoDetectParser;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.parser.Parser;
import org.apache.tika.sax.WriteOutContentHandler;

/**
 * @author Matthew Tambara
 * @deprecated As of Athanasius (7.3.x), with no direct replacement
 */
@Deprecated
public class TikaSafeRandomizerBumper implements RandomizerBumper<byte[]> {

    public static final TikaSafeRandomizerBumper INSTANCE = new TikaSafeRandomizerBumper(null);

    public TikaSafeRandomizerBumper(String contentType) {
        _contentType = contentType;
    }

    @Override
    public boolean accept(byte[] randomValue) {
        try {
            ParseContext parseContext = new ParseContext();

            Parser parser = new AutoDetectParser(_tikaConfig);

            parseContext.set(Parser.class, parser);

            Metadata metadata = new Metadata();

            parser.parse(new UnsyncByteArrayInputStream(randomValue), new WriteOutContentHandler(new DummyWriter()),
                    metadata, parseContext);

            if (_contentType == null) {
                if (_log.isInfoEnabled()) {
                    _log.info("Accepted: " + byteArrayToString(randomValue));
                }

                return true;
            }

            String contentType = metadata.get("Content-Type");

            if (contentType.contains(_contentType)) {
                if (_log.isInfoEnabled()) {
                    _log.info("Accepted: " + byteArrayToString(randomValue));
                }

                return true;
            }

            return false;
        } catch (Throwable t) {
            return false;
        }
    }

    protected static String byteArrayToString(byte[] byteArray) {
        StringBundler sb = new StringBundler((byteArray.length * 3) + 1);

        sb.append(StringPool.OPEN_CURLY_BRACE);

        for (byte b : byteArray) {
            sb.append("(byte)");
            sb.append(b);
            sb.append(StringPool.COMMA_AND_SPACE);
        }

        sb.setIndex(sb.index() - 1);

        sb.append(StringPool.CLOSE_CURLY_BRACE);

        return sb.toString();
    }

    private static final Log _log = LogFactoryUtil.getLog(TikaSafeRandomizerBumper.class);

    private static final TikaConfig _tikaConfig;

    static {
        ClassLoader classLoader = FileImpl.class.getClassLoader();

        try {
            _tikaConfig = ReflectionTestUtil.getFieldValue(
                    classLoader.loadClass(FileImpl.class.getName() + "$TikaConfigHolder"), "_tikaConfig");
        } catch (Exception e) {
            throw new ExceptionInInitializerError(e);
        }
    }

    private final String _contentType;

}