001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portlet.documentlibrary.messaging;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.messaging.BaseMessageListener;
020    import com.liferay.portal.kernel.messaging.Message;
021    import com.liferay.portal.kernel.messaging.MessageBusUtil;
022    import com.liferay.portal.kernel.repository.model.FileVersion;
023    import com.liferay.portal.util.PropsValues;
024    import com.liferay.portlet.documentlibrary.util.PDFProcessorUtil;
025    
026    /**
027     * @author Alexander Chow
028     */
029    public class PDFProcessorMessageListener extends BaseMessageListener {
030    
031            @Override
032            protected void doReceive(Message message) throws Exception {
033                    FileVersion fileVersion = (FileVersion)message.getPayload();
034    
035                    try {
036                            PDFProcessorUtil.generateImages(fileVersion);
037                    }
038                    catch (Exception e) {
039                            if (_log.isWarnEnabled()) {
040                                    _log.warn(
041                                            "Unable to generate images for file version " +
042                                                    fileVersion.getFileVersionId(),
043                                            e);
044                            }
045                    }
046    
047                    if (PropsValues.DL_FILE_ENTRY_PROCESSORS_TRIGGER_SYNCHRONOUSLY) {
048                            MessageBusUtil.sendMessage(
049                                    message.getResponseDestinationName(), message);
050                    }
051            }
052    
053            private static Log _log = LogFactoryUtil.getLog(
054                    PDFProcessorMessageListener.class);
055    
056    }