001    /**
002     * Copyright (c) 2000-2012 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.util.InstancePool;
032    import com.liferay.portal.kernel.xml.Element;
033    import com.liferay.portal.repository.liferayrepository.model.LiferayFileEntry;
034    import com.liferay.portal.repository.liferayrepository.model.LiferayFileVersion;
035    import com.liferay.portal.service.ServiceContext;
036    import com.liferay.portal.util.PortalUtil;
037    import com.liferay.portal.util.PropsValues;
038    import com.liferay.portlet.documentlibrary.model.DLFileEntry;
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    public class RawMetadataProcessorImpl
057            implements DLProcessor, RawMetadataProcessor {
058    
059            public static RawMetadataProcessorImpl getInstance() {
060                    return _instance;
061            }
062    
063            public void cleanUp(FileEntry fileEntry) {
064            }
065    
066            public void cleanUp(FileVersion fileVersion) {
067            }
068    
069            public void exportGeneratedFiles(
070                            PortletDataContext portletDataContext, FileEntry fileEntry,
071                            Element fileEntryElement)
072                    throws Exception {
073    
074                    return;
075            }
076    
077            public void generateMetadata(FileVersion fileVersion)
078                    throws SystemException {
079    
080                    long fileEntryMetadataCount =
081                            DLFileEntryMetadataLocalServiceUtil.getFileEntryMetadataCount(
082                                    fileVersion.getFileEntryId(), fileVersion.getFileVersionId());
083    
084                    if (fileEntryMetadataCount == 0) {
085                            _instance.trigger(fileVersion);
086                    }
087            }
088    
089            public void importGeneratedFiles(
090                            PortletDataContext portletDataContext, FileEntry fileEntry,
091                            FileEntry importedFileEntry, Element fileEntryElement)
092                    throws Exception {
093    
094                    return;
095            }
096    
097            public boolean isSupported(FileVersion fileVersion) {
098                    return true;
099            }
100    
101            public boolean isSupported(String mimeType) {
102                    return true;
103            }
104    
105            public void saveMetadata(FileVersion fileVersion)
106                    throws PortalException, SystemException {
107    
108                    Map<String, Fields> rawMetadataMap = null;
109    
110                    if (fileVersion instanceof LiferayFileVersion) {
111                            try {
112                                    LiferayFileVersion liferayFileVersion =
113                                            (LiferayFileVersion)fileVersion;
114    
115                                    File file = liferayFileVersion.getFile(false);
116    
117                                    rawMetadataMap = RawMetadataProcessorUtil.getRawMetadataMap(
118                                            fileVersion.getExtension(), fileVersion.getMimeType(),
119                                            file);
120                            }
121                            catch (UnsupportedOperationException uoe) {
122                            }
123                    }
124    
125                    if (rawMetadataMap == null) {
126                            InputStream inputStream = fileVersion.getContentStream(false);
127    
128                            rawMetadataMap = RawMetadataProcessorUtil.getRawMetadataMap(
129                                    fileVersion.getExtension(), fileVersion.getMimeType(),
130                                    inputStream);
131                    }
132    
133                    List<DDMStructure> ddmStructures =
134                            DDMStructureLocalServiceUtil.getClassStructures(
135                                    PortalUtil.getClassNameId(DLFileEntry.class), QueryUtil.ALL_POS,
136                                    QueryUtil.ALL_POS);
137    
138                    ServiceContext serviceContext = new ServiceContext();
139    
140                    serviceContext.setScopeGroupId(fileVersion.getGroupId());
141                    serviceContext.setUserId(fileVersion.getUserId());
142    
143                    DLFileEntryMetadataLocalServiceUtil.updateFileEntryMetadata(
144                            fileVersion.getCompanyId(), ddmStructures, 0L,
145                            fileVersion.getFileEntryId(), fileVersion.getFileVersionId(),
146                            rawMetadataMap, serviceContext);
147    
148                    FileEntry fileEntry = fileVersion.getFileEntry();
149    
150                    if (fileEntry instanceof LiferayFileEntry) {
151                            Indexer indexer = IndexerRegistryUtil.getIndexer(
152                                    DLFileEntryConstants.getClassName());
153    
154                            LiferayFileEntry liferayFileEntry = (LiferayFileEntry)fileEntry;
155    
156                            indexer.reindex(liferayFileEntry.getDLFileEntry());
157                    }
158            }
159    
160            public void trigger(FileVersion fileVersion) {
161                    if (PropsValues.DL_FILE_ENTRY_PROCESSORS_TRIGGER_SYNCHRONOUSLY) {
162                            try {
163                                    MessageBusUtil.sendSynchronousMessage(
164                                            DestinationNames.DOCUMENT_LIBRARY_RAW_METADATA_PROCESSOR,
165                                            fileVersion);
166                            }
167                            catch (MessageBusException mbe) {
168                                    if (_log.isWarnEnabled()) {
169                                            _log.warn(mbe, mbe);
170                                    }
171                            }
172                    }
173                    else {
174                            MessageBusUtil.sendMessage(
175                                    DestinationNames.DOCUMENT_LIBRARY_RAW_METADATA_PROCESSOR,
176                                    fileVersion);
177                    }
178            }
179    
180            private RawMetadataProcessorImpl() {
181            }
182    
183            private static Log _log = LogFactoryUtil.getLog(
184                    RawMetadataProcessorImpl.class);
185    
186            private static RawMetadataProcessorImpl _instance =
187                    new RawMetadataProcessorImpl();
188    
189            static {
190                    InstancePool.put(RawMetadataProcessorImpl.class.getName(), _instance);
191            }
192    
193    }