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https://github.com/Alfresco/alfresco-community-repo.git
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f54aacb177
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@31740 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
614 lines
26 KiB
Java
614 lines
26 KiB
Java
/*
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* Copyright (C) 2005-2011 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.repo.thumbnail;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import org.alfresco.model.ContentModel;
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import org.alfresco.repo.content.transform.RuntimeExecutableContentTransformerOptions;
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import org.alfresco.repo.content.transform.magick.ImageTransformationOptions;
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import org.alfresco.repo.content.transform.swf.SWFTransformationOptions;
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import org.alfresco.repo.node.NodeServicePolicies;
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import org.alfresco.repo.policy.Behaviour;
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import org.alfresco.repo.policy.JavaBehaviour;
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import org.alfresco.repo.policy.PolicyComponent;
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import org.alfresco.repo.rendition.executer.AbstractRenderingEngine;
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import org.alfresco.repo.rendition.executer.ImageRenderingEngine;
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import org.alfresco.repo.rendition.executer.ReformatRenderingEngine;
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import org.alfresco.repo.security.authentication.AuthenticationUtil;
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import org.alfresco.service.cmr.rendition.RenditionDefinition;
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import org.alfresco.service.cmr.rendition.RenditionService;
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import org.alfresco.service.cmr.rendition.RenditionServiceException;
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import org.alfresco.service.cmr.repository.ChildAssociationRef;
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import org.alfresco.service.cmr.repository.ContentData;
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import org.alfresco.service.cmr.repository.NodeRef;
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import org.alfresco.service.cmr.repository.NodeService;
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import org.alfresco.service.cmr.repository.TransformationOptions;
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import org.alfresco.service.cmr.thumbnail.FailedThumbnailInfo;
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import org.alfresco.service.cmr.thumbnail.ThumbnailException;
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import org.alfresco.service.cmr.thumbnail.ThumbnailParentAssociationDetails;
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import org.alfresco.service.cmr.thumbnail.ThumbnailService;
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import org.alfresco.service.namespace.NamespaceService;
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import org.alfresco.service.namespace.QName;
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import org.alfresco.service.namespace.RegexQNamePattern;
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import org.alfresco.util.GUID;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.extensions.surf.util.ParameterCheck;
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/**
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* @author Roy Wetherall
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* @author Neil McErlean
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*/
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public class ThumbnailServiceImpl implements ThumbnailService,
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NodeServicePolicies.BeforeCreateNodePolicy,
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NodeServicePolicies.OnCreateNodePolicy
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{
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/** Logger */
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private static Log logger = LogFactory.getLog(ThumbnailServiceImpl.class);
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/** Error messages */
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// private static final String ERR_NO_CREATE = "Thumbnail could not be created as required transformation is not supported from {0} to {1}";
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private static final String ERR_DUPLICATE_NAME = "Thumbnail could not be created because of a duplicate name";
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private static final String ERR_NO_PARENT = "Thumbnail has no parent so update cannot take place.";
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/** Mimetype wildcard postfix */
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private static final String SUBTYPES_POSTFIX = "/*";
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/** Node service */
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private NodeService nodeService;
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/** Thumbnail registry */
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private ThumbnailRegistry thumbnailRegistry;
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/** Rendition service */
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private RenditionService renditionService;
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/**
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* The policy component.
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* @since 3.5.0
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*/
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private PolicyComponent policyComponent;
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/**
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* Set the rendition service.
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*
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* @param renditionService
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*/
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public void setRenditionService(RenditionService renditionService)
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{
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this.renditionService = renditionService;
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}
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/**
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* Set the node service
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*
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* @param nodeService node service
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*/
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public void setNodeService(NodeService nodeService)
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{
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this.nodeService = nodeService;
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}
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/**
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* Set thumbnail registry
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*
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* @param thumbnailRegistry thumbnail registry
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*/
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public void setThumbnailRegistry(ThumbnailRegistry thumbnailRegistry)
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{
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this.thumbnailRegistry = thumbnailRegistry;
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}
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/**
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* Set the policy component to listen for various events
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* @since 3.5.0
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*/
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public void setPolicyComponent(PolicyComponent policyComponent)
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{
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this.policyComponent = policyComponent;
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}
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/**
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* Registers to listen for events of interest.
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* @since 3.5.0
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*/
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public void init()
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{
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policyComponent.bindClassBehaviour(
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NodeServicePolicies.OnCreateNodePolicy.QNAME,
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ContentModel.TYPE_THUMBNAIL,
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new JavaBehaviour(this, "onCreateNode", Behaviour.NotificationFrequency.EVERY_EVENT));
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policyComponent.bindClassBehaviour(
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NodeServicePolicies.BeforeCreateNodePolicy.QNAME,
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ContentModel.TYPE_FAILED_THUMBNAIL,
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new JavaBehaviour(this, "beforeCreateNode", Behaviour.NotificationFrequency.EVERY_EVENT));
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}
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public void beforeCreateNode(
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NodeRef parentRef,
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QName assocTypeQName,
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QName assocQName,
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QName nodeTypeQName)
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{
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// When a thumbnail has failed, we must delete any existing (successful) thumbnails of that thumbnailDefinition.
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if (ContentModel.TYPE_FAILED_THUMBNAIL.equals(nodeTypeQName))
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{
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// In fact there should only be zero or one such thumbnails
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Set<QName> childNodeTypes = new HashSet<QName>();
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childNodeTypes.add(ContentModel.TYPE_THUMBNAIL);
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List<ChildAssociationRef> existingThumbnails = nodeService.getChildAssocs(parentRef, childNodeTypes);
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for (ChildAssociationRef chAssRef : existingThumbnails)
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{
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if (chAssRef.getQName().equals(assocQName))
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{
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if (logger.isDebugEnabled())
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{
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StringBuilder msg = new StringBuilder();
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msg.append("Deleting thumbnail node ").append(chAssRef.getChildRef());
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logger.debug(msg.toString());
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}
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nodeService.deleteNode(chAssRef.getChildRef());
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}
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}
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}
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// We can't respond to the creation of a cm:thumbnail node at this point as they are created with
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// temporary assoc qnames and so cannot be matched to the relevant thumbnail definition.
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// Instead we must do it "onCreateNode()"
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}
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public void onCreateNode(ChildAssociationRef childAssoc)
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{
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// When a thumbnail succeeds, we must delete any existing thumbnail failure nodes.
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String thumbnailName = (String) nodeService.getProperty(childAssoc.getChildRef(), ContentModel.PROP_NAME);
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// In fact there should only be zero or one such failedThumbnails
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Map<String, FailedThumbnailInfo> failures = getFailedThumbnails(childAssoc.getParentRef());
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FailedThumbnailInfo existingFailedThumbnail = failures.get(thumbnailName);
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if (existingFailedThumbnail != null)
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{
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if (logger.isDebugEnabled())
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{
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StringBuilder msg = new StringBuilder();
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msg.append("Deleting failedThumbnail node ").append(existingFailedThumbnail.getFailedThumbnailNode());
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logger.debug(msg.toString());
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}
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nodeService.deleteNode(existingFailedThumbnail.getFailedThumbnailNode());
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}
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}
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/**
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* @see org.alfresco.service.cmr.thumbnail.ThumbnailService#getThumbnailRegistry()
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*/
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public ThumbnailRegistry getThumbnailRegistry()
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{
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return this.thumbnailRegistry;
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}
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/**
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* @see org.alfresco.service.cmr.thumbnail.ThumbnailService#createThumbnail(org.alfresco.service.cmr.repository.NodeRef, org.alfresco.service.namespace.QName, java.lang.String, org.alfresco.service.cmr.repository.TransformationOptions, java.lang.String)
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*/
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public NodeRef createThumbnail(NodeRef node, QName contentProperty, String mimetype, TransformationOptions transformationOptions, String thumbnailName)
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{
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return createThumbnail(node, contentProperty, mimetype, transformationOptions, thumbnailName, null);
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}
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/**
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* @see org.alfresco.service.cmr.thumbnail.ThumbnailService#createThumbnail(org.alfresco.service.cmr.repository.NodeRef, org.alfresco.service.namespace.QName, java.lang.String, org.alfresco.service.cmr.repository.TransformationOptions, java.lang.String, org.alfresco.service.cmr.thumbnail.ThumbnailParentAssociationDetails)
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*/
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public NodeRef createThumbnail(final NodeRef node, final QName contentProperty, final String mimetype,
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final TransformationOptions transformationOptions, final String thumbnailName, final ThumbnailParentAssociationDetails assocDetails)
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{
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// Parameter check
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ParameterCheck.mandatory("node", node);
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ParameterCheck.mandatory("contentProperty", contentProperty);
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ParameterCheck.mandatoryString("mimetype", mimetype);
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ParameterCheck.mandatory("transformationOptions", transformationOptions);
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if (logger.isDebugEnabled() == true)
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{
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logger.debug("Creating thumbnail (node=" + node.toString() + "; contentProperty="
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+ contentProperty.toString() + "; mimetype=" + mimetype);
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}
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if (thumbnailName != null)
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{
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NodeRef existingThumbnail = getThumbnailByName(node, contentProperty, thumbnailName);
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if (existingThumbnail != null)
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{
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if (logger.isDebugEnabled() == true)
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{
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logger.debug("Creating thumbnail: There is already a thumbnail with the name '" + thumbnailName + "' (node=" + node.toString() + "; contentProperty=" + contentProperty.toString() + "; mimetype=" + mimetype);
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}
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// Return the thumbnail that has already been created
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return existingThumbnail;
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}
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}
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return AuthenticationUtil.runAs(new AuthenticationUtil.RunAsWork<NodeRef>()
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{
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public NodeRef doWork() throws Exception
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{
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return createThumbnailNode( node,
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contentProperty,
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mimetype,
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transformationOptions,
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thumbnailName,
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assocDetails);
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}
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}, AuthenticationUtil.getSystemUserName());
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}
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private QName getThumbnailQName(String localThumbnailName)
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{
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if (localThumbnailName == null || localThumbnailName.length() == 0)
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{
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localThumbnailName = GUID.generate();
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}
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// We're prepending the cm namespace here.
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QName thumbnailQName = QName.createQName(NamespaceService.CONTENT_MODEL_1_0_URI, localThumbnailName);
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return thumbnailQName;
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}
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private String getRenderingEngineNameFor(TransformationOptions options)
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{
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if (options instanceof ImageTransformationOptions)
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{
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return ImageRenderingEngine.NAME;
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}
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else if (options instanceof SWFTransformationOptions)
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{
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return ReformatRenderingEngine.NAME;
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}
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else if (options instanceof RuntimeExecutableContentTransformerOptions)
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{
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return ReformatRenderingEngine.NAME;
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}
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else
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{
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// TODO What can we do here? Can we treat this as an error?
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// Isn't this a 'standard' TransformationOptions?
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return "";
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}
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}
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/**
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* This method returns the NodeRef for the thumbnail, using the ChildAssociationRef
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* that links the sourceNode to its associated Thumbnail node.
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*
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* @param thumbnailRef the ChildAssociationRef containing the child NodeRef.
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* @return the NodeRef of the thumbnail itself.
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*/
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public NodeRef getThumbnailNode(ChildAssociationRef thumbnailRef)
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{
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return thumbnailRef.getChildRef();
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}
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/**
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* @see org.alfresco.service.cmr.thumbnail.ThumbnailService#updateThumbnail(org.alfresco.service.cmr.repository.NodeRef, org.alfresco.service.cmr.repository.TransformationOptions)
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*/
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public void updateThumbnail(final NodeRef thumbnail, final TransformationOptions transformationOptions)
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{
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if (logger.isDebugEnabled() == true)
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{
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logger.debug("Updating thumbnail (thumbnail=" + thumbnail.toString() + ")");
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}
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// First check that we are dealing with a rendition object
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if (renditionService.isRendition(thumbnail))
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{
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// Get the node that is the source of the thumbnail
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ChildAssociationRef parentAssoc = renditionService.getSourceNode(thumbnail);
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if (parentAssoc == null)
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{
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if (logger.isDebugEnabled() == true)
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{
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logger.debug("Updating thumbnail: The thumbnails parent cannot be found (thumbnail=" + thumbnail.toString() + ")");
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}
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throw new ThumbnailException(ERR_NO_PARENT);
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}
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final QName renditionAssociationName = parentAssoc.getQName();
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NodeRef sourceNode = parentAssoc.getParentRef();
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// Get the content property
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QName contentProperty = (QName)nodeService.getProperty(thumbnail, ContentModel.PROP_CONTENT_PROPERTY_NAME);
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// Set the basic detail of the transformation options
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transformationOptions.setSourceNodeRef(sourceNode);
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transformationOptions.setSourceContentProperty(contentProperty);
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transformationOptions.setTargetContentProperty(ContentModel.PROP_CONTENT);
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// Do the thumbnail transformation. Rendition Definitions are persisted underneath the Data Dictionary for which Group ALL
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// has Consumer access by default. However, we cannot assume that that access level applies for all deployments. See ALF-7334.
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RenditionDefinition rendDefn = AuthenticationUtil.runAs(new AuthenticationUtil.RunAsWork<RenditionDefinition>()
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{
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@Override
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public RenditionDefinition doWork() throws Exception
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{
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return renditionService.loadRenditionDefinition(renditionAssociationName);
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}
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}, AuthenticationUtil.getSystemUserName());
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if (rendDefn == null)
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{
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String renderingEngineName = getRenderingEngineNameFor(transformationOptions);
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rendDefn = renditionService.createRenditionDefinition(parentAssoc.getQName(), renderingEngineName);
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}
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Map<String, Serializable> params = thumbnailRegistry.getThumbnailRenditionConvertor().convert(transformationOptions, null);
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for (String key : params.keySet())
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{
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rendDefn.setParameterValue(key, params.get(key));
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}
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renditionService.render(sourceNode, rendDefn);
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}
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else
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{
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if (logger.isDebugEnabled() == true)
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{
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logger.debug("Updating thumbnail: cannot update a thumbnail node that isn't the correct thumbnail type (thumbnail=" + thumbnail.toString() + ")");
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}
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}
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}
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/**
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* @see org.alfresco.service.cmr.thumbnail.ThumbnailService#getThumbnailByName(org.alfresco.service.cmr.repository.NodeRef, org.alfresco.service.namespace.QName, java.lang.String)
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*/
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public NodeRef getThumbnailByName(NodeRef node, QName contentProperty, String thumbnailName)
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{
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//
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// NOTE:
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//
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// Since there is not an easy alternative and for clarity the node service is being used to retrieve the thumbnails.
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// If retrieval performance becomes an issue then this code can be replaced
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//
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if (logger.isDebugEnabled() == true)
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{
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logger.debug("Getting thumbnail by name (nodeRef=" + node.toString() + "; contentProperty=" + contentProperty.toString() + "; thumbnailName=" + thumbnailName + ")");
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}
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// Thumbnails have a cm: prefix.
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QName namespacedThumbnailName = QName.createQName(NamespaceService.CONTENT_MODEL_1_0_URI, thumbnailName);
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ChildAssociationRef existingRendition = renditionService.getRenditionByName(node, namespacedThumbnailName);
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NodeRef thumbnail = null;
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// Check the child to see if it matches the content property we are concerned about.
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// We can assume there will only ever be one per content property since createThumbnail enforces this.
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if (existingRendition != null)
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{
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NodeRef child = existingRendition.getChildRef();
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Serializable contentPropertyName = this.nodeService.getProperty(child, ContentModel.PROP_CONTENT_PROPERTY_NAME);
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if (contentProperty.equals(contentPropertyName) == true)
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{
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thumbnail = child;
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}
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}
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return thumbnail;
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}
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/**
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* @see org.alfresco.service.cmr.thumbnail.ThumbnailService#getThumbnails(org.alfresco.service.cmr.repository.NodeRef, org.alfresco.service.namespace.QName, java.lang.String, org.alfresco.service.cmr.repository.TransformationOptions)
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*/
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public List<NodeRef> getThumbnails(NodeRef node, QName contentProperty, String mimetype, TransformationOptions options)
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{
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List<NodeRef> thumbnails = new ArrayList<NodeRef>(5);
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//
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// NOTE:
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//
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// Since there is not an easy alternative and for clarity the node service is being used to retrieve the thumbnails.
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// If retrieval performance becomes an issue then this code can be replaced
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//
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if (logger.isDebugEnabled() == true)
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{
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logger.debug("Getting thumbnails (nodeRef=" + node.toString() + "; contentProperty=" + contentProperty.toString() + "; mimetype=" + mimetype + ")");
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}
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List<ChildAssociationRef> renditions = this.renditionService.getRenditions(node);
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for (ChildAssociationRef assoc : renditions)
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{
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// Check the child to see if it matches the content property we are concerned about.
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// We can assume there will only ever be one per content property since createThumbnail enforces this.
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NodeRef child = assoc.getChildRef();
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if (contentProperty.equals(this.nodeService.getProperty(child, ContentModel.PROP_CONTENT_PROPERTY_NAME)) == true &&
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matchMimetypeOptions(child, mimetype, options) == true)
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{
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thumbnails.add(child);
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}
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}
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//TODO Ensure this doesn't return non-thumbnail renditions.
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return thumbnails;
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}
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@Override
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public Map<String, FailedThumbnailInfo> getFailedThumbnails(NodeRef sourceNode)
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{
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Map<String, FailedThumbnailInfo> result = Collections.emptyMap();
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if (nodeService.hasAspect(sourceNode, ContentModel.ASPECT_FAILED_THUMBNAIL_SOURCE))
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{
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List<ChildAssociationRef> failedThumbnailChildren = nodeService.getChildAssocs(sourceNode,
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ContentModel.ASSOC_FAILED_THUMBNAIL, RegexQNamePattern.MATCH_ALL);
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result = new HashMap<String, FailedThumbnailInfo>();
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for (ChildAssociationRef chAssRef : failedThumbnailChildren)
|
|
{
|
|
final QName failedThumbnailName = chAssRef.getQName();
|
|
NodeRef failedThumbnailNode = chAssRef.getChildRef();
|
|
Map<QName, Serializable> props = nodeService.getProperties(failedThumbnailNode);
|
|
Date failureDateTime = (Date)props.get(ContentModel.PROP_FAILED_THUMBNAIL_TIME);
|
|
int failureCount = (Integer)props.get(ContentModel.PROP_FAILURE_COUNT);
|
|
|
|
final FailedThumbnailInfo failedThumbnailInfo = new FailedThumbnailInfo(failedThumbnailName.getLocalName(),
|
|
failureDateTime, failureCount,
|
|
failedThumbnailNode);
|
|
result.put(failedThumbnailName.getLocalName(), failedThumbnailInfo);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/**
|
|
* Determine whether the thumbnail meta-data matches the given mimetype and options
|
|
*
|
|
* If mimetype and transformation options are null then match is guarenteed
|
|
*
|
|
* @param thumbnail thumbnail node reference
|
|
* @param mimetype mimetype
|
|
* @param options transformation options
|
|
* @return boolean true if the mimetype and options match the thumbnail metadata, false otherwise
|
|
*/
|
|
private boolean matchMimetypeOptions(NodeRef thumbnail, String mimetype, TransformationOptions options)
|
|
{
|
|
boolean result = true;
|
|
|
|
if (mimetype != null)
|
|
{
|
|
// Check the mimetype
|
|
String thumbnailMimetype = ((ContentData) this.nodeService.getProperty(thumbnail, ContentModel.PROP_CONTENT)).getMimetype();
|
|
|
|
if (mimetype.endsWith(SUBTYPES_POSTFIX))
|
|
{
|
|
String baseMimetype = mimetype.substring(0, mimetype.length() - SUBTYPES_POSTFIX.length());
|
|
if (thumbnailMimetype == null || thumbnailMimetype.startsWith(baseMimetype) == false)
|
|
{
|
|
result = false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (mimetype.equals(thumbnailMimetype) == false)
|
|
{
|
|
result = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (result != false && options != null)
|
|
{
|
|
// TODO .. check for matching options here ...
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates a {@link RenditionDefinition} with no parameters set.
|
|
* @param thumbnailName
|
|
* @param transformationOptions
|
|
* @return
|
|
*/
|
|
private RenditionDefinition createRawRenditionDefinition(QName thumbnailQName,
|
|
final TransformationOptions transformationOptions)
|
|
{
|
|
// Create the renditionDefinition
|
|
String renderingEngineName = getRenderingEngineNameFor(transformationOptions);
|
|
RenditionDefinition definition = renditionService.createRenditionDefinition(thumbnailQName, renderingEngineName);
|
|
return definition;
|
|
}
|
|
|
|
/**
|
|
* Creates a fully parameterized {@link RenditionDefinition}.
|
|
* @param contentProperty
|
|
* @param mimetype
|
|
* @param transformationOptions
|
|
* @param thumbnailName
|
|
* @param assocDetails
|
|
* @return
|
|
*/
|
|
private RenditionDefinition createRenditionDefinition(final QName contentProperty, final String mimetype,
|
|
final TransformationOptions transformationOptions, final QName thumbnailQName,
|
|
final ThumbnailParentAssociationDetails assocDetails)
|
|
{
|
|
RenditionDefinition definition = createRawRenditionDefinition(thumbnailQName, transformationOptions);
|
|
|
|
// Convert the TransformationOptions and ThumbnailParentAssocDetails to
|
|
// rendition-style parameters
|
|
Map<String, Serializable> params = thumbnailRegistry.getThumbnailRenditionConvertor().convert(transformationOptions, assocDetails);
|
|
// Add the other parameters given in this method signature.
|
|
params.put(AbstractRenderingEngine.PARAM_SOURCE_CONTENT_PROPERTY, contentProperty);
|
|
params.put(AbstractRenderingEngine.PARAM_MIME_TYPE, mimetype);
|
|
|
|
// Set the parameters on the rendition definition.
|
|
definition.addParameterValues(params);
|
|
return definition;
|
|
}
|
|
|
|
private NodeRef createThumbnailNode(final NodeRef node, final QName contentProperty,
|
|
final String mimetype, final TransformationOptions transformationOptions, final String thumbnailName,
|
|
final ThumbnailParentAssociationDetails assocDetails)
|
|
{
|
|
// Get the name of the thumbnail and add to properties map
|
|
QName thumbnailQName = getThumbnailQName(thumbnailName);
|
|
RenditionDefinition definition = createRenditionDefinition(contentProperty, mimetype,
|
|
transformationOptions, thumbnailQName, assocDetails);
|
|
try
|
|
{
|
|
ChildAssociationRef thumbnailAssoc = renditionService.render(node, definition);
|
|
NodeRef thumbnail = getThumbnailNode(thumbnailAssoc);
|
|
setThumbnailNameProperty(thumbnail, thumbnailName);
|
|
return thumbnail;
|
|
} catch (RenditionServiceException rsx)
|
|
{
|
|
throw new ThumbnailException(rsx.getMessage(), rsx);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the thumbnail name if the rendition is of type cm:thumbnail.
|
|
* @param thumbnailAssoc
|
|
* @param thumbnailName
|
|
*/
|
|
private void setThumbnailNameProperty(NodeRef thumbnail, String thumbnailName)
|
|
{
|
|
if (thumbnailName != null && thumbnailName.length() > 0)
|
|
{
|
|
if (ContentModel.TYPE_THUMBNAIL.equals(nodeService.getType(thumbnail)))
|
|
{
|
|
nodeService.setProperty(thumbnail, ContentModel.PROP_THUMBNAIL_NAME, thumbnailName);
|
|
}
|
|
}
|
|
}
|
|
}
|