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https://github.com/Alfresco/alfresco-community-repo.git
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cefda8c965
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@18931 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
95 lines
3.6 KiB
Java
95 lines
3.6 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 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.jscript;
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import org.alfresco.model.ContentModel;
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import org.alfresco.service.ServiceRegistry;
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import org.alfresco.service.cmr.dictionary.DataTypeDefinition;
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import org.alfresco.service.cmr.dictionary.PropertyDefinition;
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import org.alfresco.service.cmr.repository.ContentData;
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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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/**
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* Specialised map class for supporting the initialisation of 'cm:content' properties for JavaScript API
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* objects. The JavaScript needs supporting objects to be initialised for certain data-types. If the
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* 'cm:content' property is not already initialised then it must be created on demand or it will not be
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* available to the users of the API. See AR-1673.
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*
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* @author Kevin Roast
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*/
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public class ContentAwareScriptableQNameMap<K,V> extends ScriptableQNameMap<K,V>
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{
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private ServiceRegistry services;
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private ScriptNode factory;
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/**
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* Constructor
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*
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* @param factory Factory to provide further ScriptNode objects
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* @param services ServiceRegistry
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*/
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public ContentAwareScriptableQNameMap(final ScriptNode factory, final ServiceRegistry services)
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{
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super(new NamespacePrefixResolverProvider(){
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public NamespacePrefixResolver getNamespacePrefixResolver()
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{
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return services.getNamespaceService();
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}
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});
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this.services = services;
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this.factory = factory;
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}
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/* (non-Javadoc)
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* @see org.alfresco.service.namespace.QNameMap#get(java.lang.Object)
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*/
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@Override
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public Object get(Object name)
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{
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Object value = super.get(name);
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if (value == null)
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{
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// convert the key to a qname and look up the data-type for the property
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QName qname = QName.resolveToQName(getResolver(), name.toString());
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PropertyDefinition propDef = this.services.getDictionaryService().getProperty(qname);
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if (propDef != null && DataTypeDefinition.CONTENT.equals(propDef.getDataType().getName()))
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{
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// found a valid cm:content property that is not initialised
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String mimetype = null;
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String fileName = (String)get("cm:name");
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if (fileName != null)
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{
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mimetype = this.services.getMimetypeService().guessMimetype(fileName);
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}
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ContentData cdata = new ContentData(null, mimetype, 0L, "UTF-8");
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// create the JavaScript API object we need
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value = factory.new ScriptContentData(cdata, ContentModel.PROP_CONTENT);
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// and store it so it is available to the API user
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put(name, value);
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}
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}
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return value;
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}
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}
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