mirror of
https://github.com/Alfresco/alfresco-community-repo.git
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43e93f3c14
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@18926 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
599 lines
19 KiB
Java
599 lines
19 KiB
Java
/*
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* Copyright (C) 2005-2010 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 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 General Public License for more details.
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*
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* You should have received a copy of the GNU 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.template;
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import java.io.Serializable;
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import java.io.StringReader;
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import java.text.MessageFormat;
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import java.util.ArrayList;
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import java.util.Date;
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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.model.WCMModel;
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import org.alfresco.repo.avm.AVMNodeConverter;
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import org.alfresco.repo.domain.PropertyValue;
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import org.alfresco.repo.template.BaseContentNode.TemplateContentData;
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import org.alfresco.service.ServiceRegistry;
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import org.alfresco.service.cmr.audit.AuditInfo;
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import org.alfresco.service.cmr.avm.AVMNodeDescriptor;
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import org.alfresco.service.cmr.avm.locking.AVMLock;
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import org.alfresco.service.cmr.dictionary.DataTypeDefinition;
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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.ContentReader;
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import org.alfresco.service.cmr.repository.ContentService;
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import org.alfresco.service.cmr.repository.NodeRef;
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import org.alfresco.service.cmr.repository.StoreRef;
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import org.alfresco.service.cmr.repository.TemplateImageResolver;
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import org.alfresco.service.namespace.NamespacePrefixResolver;
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import org.alfresco.service.namespace.NamespacePrefixResolverProvider;
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import org.alfresco.service.namespace.QName;
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import org.alfresco.service.namespace.QNameMap;
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import org.springframework.extensions.surf.util.Pair;
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import org.springframework.extensions.surf.util.URLEncoder;
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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.util.StringUtils;
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import org.xml.sax.InputSource;
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import freemarker.ext.dom.NodeModel;
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/**
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* AVM node class for use by a Template model.
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* <p>
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* The class exposes Node properties, children as dynamically populated maps and lists.
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* <p>
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* Various helper methods are provided to access common and useful node variables such
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* as the content url and type information.
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* <p>
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* See {@link http://wiki.alfresco.com/wiki/Template_Guide}
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*
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* @author Kevin Roast
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*/
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public class AVMTemplateNode extends BasePermissionsNode implements NamespacePrefixResolverProvider
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{
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private static Log logger = LogFactory.getLog(AVMTemplateNode.class);
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private final static String NAMESPACE_BEGIN = "" + QName.NAMESPACE_BEGIN;
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/** Cached values */
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private NodeRef nodeRef;
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private String name;
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private QName type;
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private String path;
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private int version;
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private boolean deleted;
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private QNameMap<String, Serializable> properties;
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private boolean propsRetrieved = false;
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private AVMTemplateNode parent = null;
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private AVMNodeDescriptor avmRef;
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// ------------------------------------------------------------------------------
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// Construction
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/**
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* Constructor
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*
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* @param nodeRef The NodeRef for the AVM node this wrapper represents
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* @param services The ServiceRegistry the Node can use to access services
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* @param resolver Image resolver to use to retrieve icons
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*/
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public AVMTemplateNode(NodeRef nodeRef, ServiceRegistry services, TemplateImageResolver resolver)
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{
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if (nodeRef == null)
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{
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throw new IllegalArgumentException("NodeRef must be supplied.");
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}
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if (services == null)
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{
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throw new IllegalArgumentException("The ServiceRegistry must be supplied.");
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}
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this.nodeRef = nodeRef;
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Pair<Integer, String> pair = AVMNodeConverter.ToAVMVersionPath(nodeRef);
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this.services = services;
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this.imageResolver = resolver;
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init(pair.getFirst(), pair.getSecond(), null);
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}
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/**
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* Constructor
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*
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* @param path AVM path to the node
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* @param version Version number for avm path
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* @param services The ServiceRegistry the Node can use to access services
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* @param resolver Image resolver to use to retrieve icons
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*/
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public AVMTemplateNode(String path, int version, ServiceRegistry services, TemplateImageResolver resolver)
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{
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if (path == null)
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{
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throw new IllegalArgumentException("Path must be supplied.");
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}
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if (services == null)
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{
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throw new IllegalArgumentException("The ServiceRegistry must be supplied.");
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}
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this.nodeRef = AVMNodeConverter.ToNodeRef(version, path);
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this.services = services;
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this.imageResolver = resolver;
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init(version, path, null);
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}
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/**
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* Constructor
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*
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* @param descriptor AVMNodeDescriptior
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* @param services
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* @param resolver
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*/
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public AVMTemplateNode(AVMNodeDescriptor descriptor, ServiceRegistry services, TemplateImageResolver resolver)
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{
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if (descriptor == null)
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{
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throw new IllegalArgumentException("AVMNodeDescriptor must be supplied.");
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}
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if (services == null)
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{
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throw new IllegalArgumentException("The ServiceRegistry must be supplied.");
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}
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this.version = -1;
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this.path = descriptor.getPath();
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this.nodeRef = AVMNodeConverter.ToNodeRef(this.version, this.path);
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this.services = services;
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this.imageResolver = resolver;
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init(this.version, this.path, descriptor);
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}
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private void init(int version, String path, AVMNodeDescriptor descriptor)
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{
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this.version = version;
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this.path = path;
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this.properties = new QNameMap<String, Serializable>(this);
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if (descriptor == null)
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{
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descriptor = this.services.getAVMService().lookup(version, path, true);
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if (descriptor == null)
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{
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throw new IllegalArgumentException("Invalid node specified: " + nodeRef.toString());
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}
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}
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this.avmRef = descriptor;
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this.deleted = descriptor.isDeleted();
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}
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// ------------------------------------------------------------------------------
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// AVM Node API
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/**
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* @return ID for the AVM path - the path.
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*/
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public String getId()
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{
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return this.path;
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}
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/**
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* @return the path for this AVM node.
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*/
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public String getPath()
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{
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return this.path;
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}
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/**
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* @return the version part of the AVM path.
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*/
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public int getVersion()
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{
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return this.version;
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}
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/**
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* @return file/folder name of the AVM path.
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*/
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public String getName()
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{
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if (this.name == null)
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{
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this.name = AVMNodeConverter.SplitBase(this.path)[1];
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}
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return this.name;
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}
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/**
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* @return AVM path to the parent node
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*/
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public String getParentPath()
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{
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return AVMNodeConverter.SplitBase(this.path)[0];
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}
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/**
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* @see org.alfresco.repo.template.TemplateNodeRef#getNodeRef()
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*/
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public NodeRef getNodeRef()
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{
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return this.nodeRef;
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}
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/**
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* @see org.alfresco.repo.template.TemplateNodeRef#getType()
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*/
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public QName getType()
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{
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if (this.type == null)
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{
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if (this.deleted == false)
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{
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this.type = this.services.getNodeService().getType(this.nodeRef);
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}
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else
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{
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this.type = this.avmRef.isDeletedDirectory() ? WCMModel.TYPE_AVM_FOLDER : WCMModel.TYPE_AVM_CONTENT;
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}
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}
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return type;
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}
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/**
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* @return true if the item is a deleted node, false otherwise
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*/
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public boolean getIsDeleted()
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{
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return this.avmRef.isDeleted();
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}
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/**
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* @return true if the node is currently locked
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*/
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public boolean getIsLocked()
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{
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AVMLock lock = this.services.getAVMLockingService().getLock(
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getWebProject(), path.substring(path.indexOf("/")));
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return (lock != null);
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}
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/**
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* @return true if this node is locked and the current user is the lock owner
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*/
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public boolean getIsLockOwner()
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{
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boolean lockOwner = false;
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AVMLock lock = this.services.getAVMLockingService().getLock(
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getWebProject(), path.substring(path.indexOf("/")));
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if (lock != null)
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{
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List<String> lockUsers = lock.getOwners();
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lockOwner = (lockUsers.contains(this.services.getAuthenticationService().getCurrentUserName()));
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}
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return lockOwner;
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}
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/**
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* @return true if this user can perform operations on the node when locked.
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* This is true if the item is either unlocked, or locked and the current user is the lock owner,
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* or locked and the current user has Content Manager role in the associated web project.
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*/
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public boolean getHasLockAccess()
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{
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return this.services.getAVMLockingService().hasAccess(
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getWebProject(), path, this.services.getAuthenticationService().getCurrentUserName());
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}
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// ------------------------------------------------------------------------------
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// TemplateProperties API
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/**
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* @return the immediate parent in the node path
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*/
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public TemplateProperties getParent()
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{
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if (this.parent == null)
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{
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this.parent = new AVMTemplateNode(this.getParentPath(), this.version, this.services, this.imageResolver);
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}
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return this.parent;
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}
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/**
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* @return true if this Node is a container (i.e. a folder)
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*/
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@Override
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public boolean getIsContainer()
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{
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return this.avmRef.isDirectory() || this.avmRef.isDeletedDirectory();
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}
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/**
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* @return true if this Node is a document (i.e. a file)
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*/
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@Override
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public boolean getIsDocument()
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{
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return this.avmRef.isFile() || this.avmRef.isDeletedFile();
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}
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/**
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* @see org.alfresco.repo.template.TemplateProperties#getChildren()
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*/
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public List<TemplateProperties> getChildren()
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{
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if (this.children == null)
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{
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// use the NodeService so appropriate permission checks are performed
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List<ChildAssociationRef> childRefs = this.services.getNodeService().getChildAssocs(this.nodeRef);
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this.children = new ArrayList<TemplateProperties>(childRefs.size());
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for (ChildAssociationRef ref : childRefs)
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{
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// create our Node representation from the NodeRef
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AVMTemplateNode child = new AVMTemplateNode(ref.getChildRef(), this.services, this.imageResolver);
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this.children.add(child);
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}
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}
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return this.children;
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}
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/**
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* @see org.alfresco.repo.template.TemplateProperties#getProperties()
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*/
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public Map<String, Serializable> getProperties()
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{
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if (!this.propsRetrieved)
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{
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if (!this.deleted)
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{
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Map<QName, PropertyValue> props = this.services.getAVMService().getNodeProperties(this.version, this.path);
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for (QName qname: props.keySet())
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{
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Serializable propValue = props.get(qname).getValue(DataTypeDefinition.ANY);
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if (propValue instanceof NodeRef)
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{
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// NodeRef object properties are converted to new TemplateNode objects
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// so they can be used as objects within a template
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NodeRef nodeRef = (NodeRef)propValue;
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if (StoreRef.PROTOCOL_AVM.equals(nodeRef.getStoreRef().getProtocol()))
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{
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propValue = new AVMTemplateNode(nodeRef, this.services, this.imageResolver);
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}
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else
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{
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propValue = new TemplateNode(nodeRef, this.services, this.imageResolver);
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}
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}
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else if (propValue instanceof ContentData)
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{
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// ContentData object properties are converted to TemplateContentData objects
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// so the content and other properties of those objects can be accessed
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propValue = new TemplateContentData((ContentData)propValue, qname);
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}
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this.properties.put(qname.toString(), propValue);
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}
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}
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// AVM node properties not available in usual getProperties() call
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this.properties.put("name", this.avmRef.getName());
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this.properties.put("created", new Date(this.avmRef.getCreateDate()));
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this.properties.put("modified", new Date(this.avmRef.getModDate()));
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this.properties.put("creator", this.avmRef.getCreator());
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this.properties.put("modifier", this.avmRef.getLastModifier());
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this.propsRetrieved = true;
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}
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return this.properties;
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}
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/**
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* @return The list of aspects applied to this node
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*/
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@Override
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public Set<QName> getAspects()
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{
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if (this.aspects == null)
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{
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this.aspects = this.services.getAVMService().getAspects(this.version, this.path);
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}
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return this.aspects;
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}
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// ------------------------------------------------------------------------------
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// Content API
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/**
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* @return the content String for this node from the default content property
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* (@see ContentModel.PROP_CONTENT)
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*/
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public String getContent()
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{
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ContentReader reader = this.services.getAVMService().getContentReader(this.version, this.path);
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return (reader != null && reader.exists()) ? reader.getContentString() : "";
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}
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/**
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* @return For a content document, this method returns the URL to the content stream for
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* the default content property (@see ContentModel.PROP_CONTENT)
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* <p>
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* For a container node, this method return the URL to browse to the folder in the web-client
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*/
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public String getUrl()
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{
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if (getIsDocument() == true)
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{
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return MessageFormat.format(CONTENT_GET_URL, new Object[] {
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getNodeRef().getStoreRef().getProtocol(),
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getNodeRef().getStoreRef().getIdentifier(),
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getNodeRef().getId(),
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URLEncoder.encode(getName()) } );
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}
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else
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{
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return MessageFormat.format(FOLDER_BROWSE_URL, new Object[] {
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getNodeRef().getStoreRef().getProtocol(),
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getNodeRef().getStoreRef().getIdentifier(),
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getNodeRef().getId() } );
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}
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}
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/**
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* @return For a content document, this method returns the download URL to the content for
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* the default content property (@see ContentModel.PROP_CONTENT)
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* <p>
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* For a container node, this method returns an empty string
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*/
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public String getDownloadUrl()
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{
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if (getIsDocument() == true)
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{
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return MessageFormat.format(CONTENT_DOWNLOAD_URL, new Object[] {
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getNodeRef().getStoreRef().getProtocol(),
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getNodeRef().getStoreRef().getIdentifier(),
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getNodeRef().getId(),
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URLEncoder.encode(getName()) } );
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}
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else
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{
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return "";
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}
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}
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/**
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* @return The mimetype encoding for content attached to the node from the default content property
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* (@see ContentModel.PROP_CONTENT)
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*/
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public String getMimetype()
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{
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return this.services.getAVMService().getContentDataForRead(this.avmRef).getMimetype();
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}
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/**
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* @return The display label of the mimetype encoding for content attached to the node from the default
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* content property (@see ContentModel.PROP_CONTENT)
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*/
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public String getDisplayMimetype()
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{
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final String mimetype = this.services.getAVMService().getContentDataForRead(this.avmRef).getMimetype();
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return services.getMimetypeService().getDisplaysByMimetype().get(mimetype);
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}
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/**
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* @return The character encoding for content attached to the node from the default content property
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* (@see ContentModel.PROP_CONTENT)
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*/
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public String getEncoding()
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{
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return this.services.getAVMService().getContentDataForRead(this.avmRef).getEncoding();
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}
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/**
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* @return The size in bytes of the content attached to the node from the default content property
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* (@see ContentModel.PROP_CONTENT)
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*/
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public long getSize()
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{
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return this.services.getAVMService().getContentDataForRead(this.avmRef).getSize();
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}
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// ------------------------------------------------------------------------------
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// Audit API
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/**
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* @return a list of AuditInfo objects describing the Audit Trail for this node instance
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*/
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public List<AuditInfo> getAuditTrail()
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{
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return this.services.getAuditService().getAuditTrail(this.nodeRef);
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}
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// ------------------------------------------------------------------------------
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// Node Helper API
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/**
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* @return FreeMarker NodeModel for the XML content of this node, or null if no parsable XML found
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|
*/
|
|
public NodeModel getXmlNodeModel()
|
|
{
|
|
try
|
|
{
|
|
return NodeModel.parse(new InputSource(new StringReader(getContent())));
|
|
}
|
|
catch (Throwable err)
|
|
{
|
|
if (logger.isDebugEnabled())
|
|
logger.debug(err.getMessage(), err);
|
|
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return Display path to this node - the path built of 'cm:name' attribute values.
|
|
*/
|
|
@Override
|
|
public String getDisplayPath()
|
|
{
|
|
return this.path;
|
|
}
|
|
|
|
|
|
public NamespacePrefixResolver getNamespacePrefixResolver()
|
|
{
|
|
return this.services.getNamespaceService();
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------------------
|
|
// Private helpers
|
|
|
|
/**
|
|
* @return the WebProject identifier for the current path
|
|
*/
|
|
private String getWebProject()
|
|
{
|
|
String webProject = this.path.substring(0, this.path.indexOf(':'));
|
|
int index = webProject.indexOf("--");
|
|
if (index != -1)
|
|
{
|
|
webProject = webProject.substring(0, index);
|
|
}
|
|
return webProject;
|
|
}
|
|
}
|