001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.documentlibrary.util;
016    
017    import com.liferay.portal.kernel.dao.orm.QueryUtil;
018    import com.liferay.portal.kernel.exception.PortalException;
019    import com.liferay.portal.kernel.exception.SystemException;
020    import com.liferay.portal.kernel.lar.PortletDataContext;
021    import com.liferay.portal.kernel.log.Log;
022    import com.liferay.portal.kernel.log.LogFactoryUtil;
023    import com.liferay.portal.kernel.messaging.DestinationNames;
024    import com.liferay.portal.kernel.messaging.MessageBusException;
025    import com.liferay.portal.kernel.messaging.MessageBusUtil;
026    import com.liferay.portal.kernel.metadata.RawMetadataProcessorUtil;
027    import com.liferay.portal.kernel.repository.model.FileEntry;
028    import com.liferay.portal.kernel.repository.model.FileVersion;
029    import com.liferay.portal.kernel.search.Indexer;
030    import com.liferay.portal.kernel.search.IndexerRegistryUtil;
031    import com.liferay.portal.kernel.security.pacl.DoPrivileged;
032    import com.liferay.portal.kernel.util.StreamUtil;
033    import com.liferay.portal.kernel.xml.Element;
034    import com.liferay.portal.repository.liferayrepository.model.LiferayFileEntry;
035    import com.liferay.portal.repository.liferayrepository.model.LiferayFileVersion;
036    import com.liferay.portal.service.ServiceContext;
037    import com.liferay.portal.util.PortalUtil;
038    import com.liferay.portal.util.PropsValues;
039    import com.liferay.portlet.documentlibrary.model.DLFileEntryConstants;
040    import com.liferay.portlet.documentlibrary.service.DLFileEntryMetadataLocalServiceUtil;
041    import com.liferay.portlet.dynamicdatamapping.model.DDMStructure;
042    import com.liferay.portlet.dynamicdatamapping.service.DDMStructureLocalServiceUtil;
043    import com.liferay.portlet.dynamicdatamapping.storage.Fields;
044    
045    import java.io.File;
046    import java.io.InputStream;
047    
048    import java.util.List;
049    import java.util.Map;
050    
051    /**
052     * @author Alexander Chow
053     * @author Mika Koivisto
054     * @author Miguel Pastor
055     */
056    @DoPrivileged
057    public class RawMetadataProcessorImpl
058            implements DLProcessor, RawMetadataProcessor {
059    
060            public void afterPropertiesSet() {
061            }
062    
063            public void cleanUp(FileEntry fileEntry) {
064            }
065    
066            public void cleanUp(FileVersion fileVersion) {
067            }
068    
069            public void copy(
070                    FileVersion sourceFileVersion, FileVersion destinationFileVersion) {
071            }
072    
073            public void exportGeneratedFiles(
074                            PortletDataContext portletDataContext, FileEntry fileEntry,
075                            Element fileEntryElement)
076                    throws Exception {
077    
078                    return;
079            }
080    
081            public void generateMetadata(FileVersion fileVersion)
082                    throws SystemException {
083    
084                    long fileEntryMetadataCount =
085                            DLFileEntryMetadataLocalServiceUtil.
086                                    getFileVersionFileEntryMetadatasCount(
087                                            fileVersion.getFileVersionId());
088    
089                    if (fileEntryMetadataCount == 0) {
090                            trigger(fileVersion);
091                    }
092            }
093    
094            public void importGeneratedFiles(
095                            PortletDataContext portletDataContext, FileEntry fileEntry,
096                            FileEntry importedFileEntry, Element fileEntryElement)
097                    throws Exception {
098    
099                    return;
100            }
101    
102            public boolean isSupported(FileVersion fileVersion) {
103                    return true;
104            }
105    
106            public boolean isSupported(String mimeType) {
107                    return true;
108            }
109    
110            public void saveMetadata(FileVersion fileVersion)
111                    throws PortalException, SystemException {
112    
113                    Map<String, Fields> rawMetadataMap = null;
114    
115                    if (fileVersion instanceof LiferayFileVersion) {
116                            try {
117                                    LiferayFileVersion liferayFileVersion =
118                                            (LiferayFileVersion)fileVersion;
119    
120                                    File file = liferayFileVersion.getFile(false);
121    
122                                    rawMetadataMap = RawMetadataProcessorUtil.getRawMetadataMap(
123                                            fileVersion.getExtension(), fileVersion.getMimeType(),
124                                            file);
125                            }
126                            catch (UnsupportedOperationException uoe) {
127                            }
128                    }
129    
130                    if (rawMetadataMap == null) {
131                            InputStream inputStream = null;
132    
133                            try {
134                                    inputStream = fileVersion.getContentStream(false);
135    
136                                    if (inputStream == null) {
137                                            if (_log.isWarnEnabled()) {
138                                                    _log.warn(
139                                                            "No metadata is available for file version " +
140                                                                    fileVersion.getFileVersionId());
141                                            }
142    
143                                            return;
144                                    }
145    
146                                    rawMetadataMap = RawMetadataProcessorUtil.getRawMetadataMap(
147                                            fileVersion.getExtension(), fileVersion.getMimeType(),
148                                            inputStream);
149                            }
150                            finally {
151                                    StreamUtil.cleanUp(inputStream);
152                            }
153                    }
154    
155                    List<DDMStructure> ddmStructures =
156                            DDMStructureLocalServiceUtil.getClassStructures(
157                                    fileVersion.getCompanyId(),
158                                    PortalUtil.getClassNameId(RawMetadataProcessor.class),
159                                    QueryUtil.ALL_POS, QueryUtil.ALL_POS);
160    
161                    ServiceContext serviceContext = new ServiceContext();
162    
163                    serviceContext.setScopeGroupId(fileVersion.getGroupId());
164                    serviceContext.setUserId(fileVersion.getUserId());
165    
166                    DLFileEntryMetadataLocalServiceUtil.updateFileEntryMetadata(
167                            fileVersion.getCompanyId(), ddmStructures, 0L,
168                            fileVersion.getFileEntryId(), fileVersion.getFileVersionId(),
169                            rawMetadataMap, serviceContext);
170    
171                    FileEntry fileEntry = fileVersion.getFileEntry();
172    
173                    if (fileEntry instanceof LiferayFileEntry) {
174                            Indexer indexer = IndexerRegistryUtil.getIndexer(
175                                    DLFileEntryConstants.getClassName());
176    
177                            LiferayFileEntry liferayFileEntry = (LiferayFileEntry)fileEntry;
178    
179                            indexer.reindex(liferayFileEntry.getDLFileEntry());
180                    }
181            }
182    
183            public void trigger(FileVersion fileVersion) {
184                    trigger(fileVersion, fileVersion);
185            }
186    
187            public void trigger(
188                    FileVersion sourceFileVersion, FileVersion destinationFileVersion) {
189    
190                    if (PropsValues.DL_FILE_ENTRY_PROCESSORS_TRIGGER_SYNCHRONOUSLY) {
191                            try {
192                                    MessageBusUtil.sendSynchronousMessage(
193                                            DestinationNames.DOCUMENT_LIBRARY_RAW_METADATA_PROCESSOR,
194                                            destinationFileVersion);
195                            }
196                            catch (MessageBusException mbe) {
197                                    if (_log.isWarnEnabled()) {
198                                            _log.warn(mbe, mbe);
199                                    }
200                            }
201                    }
202                    else {
203                            MessageBusUtil.sendMessage(
204                                    DestinationNames.DOCUMENT_LIBRARY_RAW_METADATA_PROCESSOR,
205                                    destinationFileVersion);
206                    }
207            }
208    
209            private static Log _log = LogFactoryUtil.getLog(
210                    RawMetadataProcessorImpl.class);
211    
212    }