mirror of
https://github.com/Alfresco/alfresco-community-repo.git
synced 2025-10-29 15:21:53 +00:00
acc78eeccb
68196: Merged PLATFORM1 (4.3/Cloud) to HEAD-BUG-FIX (4.3/Cloud)
63733: ACE-701: SONAR: Check/fix instances of "Dodgy - Load of known null value" violations in the repository project
- Made clear after consulting author.
- Ran JUnit tests which covered the code.
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@68459 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
711 lines
28 KiB
Java
711 lines
28 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.node;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.Collection;
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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.Iterator;
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import java.util.Locale;
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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.service.cmr.dictionary.DataTypeDefinition;
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import org.alfresco.service.cmr.dictionary.DictionaryService;
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import org.alfresco.service.cmr.dictionary.PropertyDefinition;
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import org.alfresco.service.cmr.ml.MultilingualContentService;
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import org.alfresco.service.cmr.repository.ContentData;
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import org.alfresco.service.cmr.repository.MLText;
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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.StoreRef;
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import org.alfresco.service.cmr.repository.datatype.DefaultTypeConverter;
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import org.alfresco.service.namespace.QName;
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import org.alfresco.util.EqualsHelper;
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import org.aopalliance.intercept.MethodInterceptor;
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import org.aopalliance.intercept.MethodInvocation;
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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.I18NUtil;
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/**
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* Interceptor to filter out multilingual text properties from getter methods and
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* transform to multilingual text for setter methods.
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* <p>
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* This interceptor ensures that all multilingual (ML) text is transformed to the
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* locale chosen {@link org.alfresco.service.cmr.repository.MLText#getContextLocale() for the request}
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* for getters and transformed to the default locale type for setters.
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* <p>
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* Where {@link org.alfresco.service.cmr.repository.MLText ML text} has been passed in, this
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* will be allowed to pass.
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*
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* @see org.alfresco.service.cmr.repository.MLText#getContextLocale()
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* @see org.alfresco.service.cmr.repository.NodeService#getProperty(NodeRef, QName)
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* @see org.alfresco.service.cmr.repository.NodeService#getProperties(NodeRef)
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* @see org.alfresco.service.cmr.repository.NodeService#setProperty(NodeRef, QName, Serializable)
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* @see org.alfresco.service.cmr.repository.NodeService#setProperties(NodeRef, Map)
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*
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* @author Derek Hulley
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* @author Philippe Dubois
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*/
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public class MLPropertyInterceptor implements MethodInterceptor
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{
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private static Log logger = LogFactory.getLog(MLPropertyInterceptor.class);
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private static ThreadLocal<Boolean> mlAware = new ThreadLocal<Boolean>();
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/** Direct access to the NodeService */
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private NodeService nodeService;
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/** Direct access to the MultilingualContentService */
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private MultilingualContentService multilingualContentService;
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/** Used to access property definitions */
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private DictionaryService dictionaryService;
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/**
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* Change the filtering behaviour of this interceptor on the curren thread.
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* Use this to switch off the filtering and just pass out properties as
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* handed out of the node service.
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*
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* @param mlAwareVal <tt>true</tt> if the current thread is able to handle
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* {@link MLText d:mltext} property types, otherwise <tt>false</tt>.
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* @return
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* <tt>true</tt> if the current transaction is ML aware
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*/
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static public boolean setMLAware(boolean mlAwareVal)
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{
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boolean wasMLAware = isMLAware();
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mlAware.set(Boolean.valueOf(mlAwareVal));
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return wasMLAware;
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}
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/**
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* @return Returns <tt>true</tt> if the current thread has marked itself
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* as being able to handle {@link MLText d:mltext} types properly.
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*/
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static public boolean isMLAware()
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{
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if (mlAware.get() == null)
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{
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return false;
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}
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else
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{
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return mlAware.get();
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}
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}
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public void setNodeService(NodeService bean)
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{
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this.nodeService = bean;
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}
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public void setMultilingualContentService(MultilingualContentService multilingualContentService)
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{
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this.multilingualContentService = multilingualContentService;
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}
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public void setDictionaryService(DictionaryService dictionaryService)
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{
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this.dictionaryService = dictionaryService;
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}
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@SuppressWarnings("unchecked")
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public Object invoke(final MethodInvocation invocation) throws Throwable
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{
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if (logger.isDebugEnabled())
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{
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logger.debug("Intercepting method " + invocation.getMethod().getName() + " using content filter " + I18NUtil.getContentLocale());
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}
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// If isMLAware then no treatment is done, just return
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if (isMLAware())
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{
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// Don't interfere
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return invocation.proceed();
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}
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Locale contentLangLocale = I18NUtil.getContentLocaleLang();
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Object ret = null;
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final String methodName = invocation.getMethod().getName();
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final Object[] args = invocation.getArguments();
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if (methodName.equals("getProperty"))
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{
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NodeRef nodeRef = (NodeRef) args[0];
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QName propertyQName = (QName) args[1];
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// Get the pivot translation, if appropriate
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NodeRef pivotNodeRef = getPivotNodeRef(nodeRef);
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// What locale must be used for filtering - ALF-3756 fix, ignore the country and variant
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Serializable value = (Serializable) invocation.proceed();
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ret = convertOutboundProperty(nodeRef, pivotNodeRef, propertyQName, value);
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}
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else if (methodName.equals("getProperties"))
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{
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NodeRef nodeRef = (NodeRef) args[0];
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// Get the pivot translation, if appropriate
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NodeRef pivotNodeRef = getPivotNodeRef(nodeRef);
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Map<QName, Serializable> properties = (Map<QName, Serializable>) invocation.proceed();
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Map<QName, Serializable> convertedProperties = new HashMap<QName, Serializable>(properties.size() * 2);
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// Check each return value type
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for (Map.Entry<QName, Serializable> entry : properties.entrySet())
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{
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QName propertyQName = entry.getKey();
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Serializable value = entry.getValue();
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Serializable convertedValue = convertOutboundProperty(nodeRef, pivotNodeRef, propertyQName, value);
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// Add it to the return map
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convertedProperties.put(propertyQName, convertedValue);
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}
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ret = convertedProperties;
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// Done
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if (logger.isDebugEnabled())
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{
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logger.debug(
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"Converted getProperties return value: \n" +
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" initial: " + properties + "\n" +
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" converted: " + convertedProperties);
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}
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}
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else if (methodName.equals("setProperties"))
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{
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NodeRef nodeRef = (NodeRef) args[0];
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Map<QName, Serializable> newProperties =(Map<QName, Serializable>) args[1];
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// Get the pivot translation, if appropriate
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NodeRef pivotNodeRef = getPivotNodeRef(nodeRef);
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// Get the current properties for the node
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Map<QName, Serializable> currentProperties = nodeService.getProperties(nodeRef);
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// Convert all properties
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Map<QName, Serializable> convertedProperties = convertInboundProperties(
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currentProperties,
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newProperties,
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contentLangLocale,
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nodeRef,
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pivotNodeRef);
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// Now complete the call by passing the converted properties
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nodeService.setProperties(nodeRef, convertedProperties);
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// Done
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}
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else if (methodName.equals("addProperties"))
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{
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NodeRef nodeRef = (NodeRef) args[0];
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Map<QName, Serializable> newProperties =(Map<QName, Serializable>) args[1];
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// Get the pivot translation, if appropriate
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NodeRef pivotNodeRef = getPivotNodeRef(nodeRef);
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// Get the current properties for the node
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Map<QName, Serializable> currentProperties = nodeService.getProperties(nodeRef);
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// Convert all properties
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Map<QName, Serializable> convertedProperties = convertInboundProperties(
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currentProperties,
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newProperties,
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contentLangLocale,
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nodeRef,
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pivotNodeRef);
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// Now complete the call by passing the converted properties
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nodeService.addProperties(nodeRef, convertedProperties);
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// Done
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}
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else if (methodName.equals("setProperty"))
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{
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NodeRef nodeRef = (NodeRef) args[0];
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QName propertyQName = (QName) args[1];
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Serializable inboundValue = (Serializable) args[2];
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// Get the pivot translation, if appropriate
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NodeRef pivotNodeRef = getPivotNodeRef(nodeRef);
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// Convert the property
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inboundValue = convertInboundProperty(contentLangLocale, nodeRef, pivotNodeRef, propertyQName, inboundValue, null);
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// Pass this through to the node service
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nodeService.setProperty(nodeRef, propertyQName, inboundValue);
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// Done
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}
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else if (methodName.equals("createNode") && args.length > 4)
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{
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NodeRef parentNodeRef = (NodeRef) args[0];
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QName assocTypeQName = (QName) args[1];
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QName assocQName = (QName) args[2];
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QName nodeTypeQName = (QName) args[3];
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Map<QName, Serializable> newProperties =(Map<QName, Serializable>) args[4];
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if (newProperties == null)
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{
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newProperties = Collections.emptyMap();
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}
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NodeRef nodeRef = null; // Not created yet
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// No pivot
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NodeRef pivotNodeRef = null;
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// Convert all properties
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Map<QName, Serializable> convertedProperties = convertInboundProperties(
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null,
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newProperties,
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contentLangLocale,
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nodeRef,
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pivotNodeRef);
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// Now complete the call by passing the converted properties
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ret = nodeService.createNode(parentNodeRef, assocTypeQName, assocQName, nodeTypeQName, convertedProperties);
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// Done
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}
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else if (methodName.equals("addAspect") && args[2] != null)
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{
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NodeRef nodeRef = (NodeRef) args[0];
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QName aspectTypeQName = (QName) args[1];
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// Get the pivot translation, if appropriate
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NodeRef pivotNodeRef = getPivotNodeRef(nodeRef);
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Map<QName, Serializable> newProperties =(Map<QName, Serializable>) args[2];
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// Get the current properties for the node
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Map<QName, Serializable> currentProperties = nodeService.getProperties(nodeRef);
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// Convert all properties
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Map<QName, Serializable> convertedProperties = convertInboundProperties(
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currentProperties,
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newProperties,
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contentLangLocale,
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nodeRef,
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pivotNodeRef);
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// Now complete the call by passing the converted properties
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nodeService.addAspect(nodeRef, aspectTypeQName, convertedProperties);
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// Done
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}
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else
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{
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ret = invocation.proceed();
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}
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// done
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return ret;
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}
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/**
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* @param nodeRef
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* a potential empty translation
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* @return
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* the pivot translation node or <tt>null</tt>
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*/
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private NodeRef getPivotNodeRef(NodeRef nodeRef)
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{
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if (nodeRef == null)
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{
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throw new IllegalArgumentException("NodeRef may not be null for calls to NodeService. Check client code.");
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}
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if (!nodeRef.getStoreRef().getProtocol().equals(StoreRef.PROTOCOL_AVM) && nodeService.hasAspect(nodeRef, ContentModel.ASPECT_MULTILINGUAL_EMPTY_TRANSLATION))
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{
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return multilingualContentService.getPivotTranslation(nodeRef);
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}
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else
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{
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return null;
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}
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}
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/**
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* Ensure that content is spoofed for empty translations.
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*/
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private Serializable convertOutboundProperty(
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NodeRef nodeRef,
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NodeRef pivotNodeRef,
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QName propertyQName,
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Serializable outboundValue)
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{
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Serializable ret = null;
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if (outboundValue == null)
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{
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ret = null;
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}
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if (outboundValue instanceof MLText)
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{
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// It is MLText
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MLText mlText = (MLText) outboundValue;
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ret = getClosestValue(mlText);
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}
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else if(isCollectionOfMLText(outboundValue))
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{
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Collection<?> col = (Collection<?>)outboundValue;
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ArrayList<String> answer = new ArrayList<String>(col.size());
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Locale closestLocale = getClosestLocale(col);
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for(Object o : col)
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{
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MLText mlText = (MLText) o;
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String value = mlText.get(closestLocale);
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if(value != null)
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{
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answer.add(value);
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}
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}
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ret = answer;
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}
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else if (pivotNodeRef != null) // It is an empty translation
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{
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if (propertyQName.equals(ContentModel.PROP_MODIFIED))
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{
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// An empty translation's modified date must be the later of its own
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// modified date and the pivot translation's modified date
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Date emptyLastModified = (Date) outboundValue;
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Date pivotLastModified = (Date) nodeService.getProperty(pivotNodeRef, ContentModel.PROP_MODIFIED);
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if (emptyLastModified.compareTo(pivotLastModified) < 0)
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{
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ret = pivotLastModified;
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}
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else
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{
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ret = emptyLastModified;
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}
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}
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else if (propertyQName.equals(ContentModel.PROP_CONTENT))
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{
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// An empty translation's cm:content must track the cm:content of the
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// pivot translation.
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ret = nodeService.getProperty(pivotNodeRef, ContentModel.PROP_CONTENT);
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}
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else
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{
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ret = outboundValue;
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}
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}
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else
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{
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ret = outboundValue;
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}
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// Done
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if (logger.isDebugEnabled())
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{
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logger.debug(
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"Converted outbound property: \n" +
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" NodeRef: " + nodeRef + "\n" +
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" Property: " + propertyQName + "\n" +
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" Before: " + outboundValue + "\n" +
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" After: " + ret);
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}
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return ret;
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}
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private Serializable getClosestValue(MLText mlText)
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{
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Set<Locale> locales = mlText.getLocales();
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Locale contentLocale = I18NUtil.getContentLocale();
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Locale locale = I18NUtil.getNearestLocale(contentLocale, locales);
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if (locale != null)
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{
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return mlText.getValue(locale);
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}
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// If the content locale is too specific, try relaxing it to just language
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Locale contentLocaleLang = I18NUtil.getContentLocaleLang();
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// We do not expect contentLocaleLang to be null
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if (contentLocaleLang != null)
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{
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locale = I18NUtil.getNearestLocale(contentLocaleLang, locales);
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if (locale != null)
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{
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return mlText.getValue(locale);
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}
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}
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else
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{
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logger.warn("contentLocaleLang is null in getClosestValue. This is not expected.");
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}
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// Just return the default translation
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return mlText.getDefaultValue();
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}
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public Locale getClosestLocale(Collection<?> collection)
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{
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if (collection.size() == 0)
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{
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return null;
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}
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// Use the available keys as options
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HashSet<Locale> locales = new HashSet<Locale>();
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for(Object o : collection)
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{
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MLText mlText = (MLText)o;
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locales.addAll(mlText.keySet());
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}
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// Try the content locale
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Locale locale = I18NUtil.getContentLocale();
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Locale match = I18NUtil.getNearestLocale(locale, locales);
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if (match == null)
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{
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// Try just the content locale language
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locale = I18NUtil.getContentLocaleLang();
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match = I18NUtil.getNearestLocale(locale, locales);
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if (match == null)
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{
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// No close matches for the locale - go for the default locale
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locale = I18NUtil.getLocale();
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match = I18NUtil.getNearestLocale(locale, locales);
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if (match == null)
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{
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// just get any locale
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match = I18NUtil.getNearestLocale(null, locales);
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}
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}
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}
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return match;
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}
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/**
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* @param outboundValue
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* @return
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*/
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private boolean isCollectionOfMLText(Serializable outboundValue)
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{
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if(outboundValue instanceof Collection<?>)
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{
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for(Object o : (Collection<?>)outboundValue)
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{
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if(!(o instanceof MLText))
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{
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return false;
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}
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}
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return true;
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}
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else
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{
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return false;
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}
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}
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private Map<QName, Serializable> convertInboundProperties(
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Map<QName, Serializable> currentProperties,
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Map<QName, Serializable> newProperties,
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Locale contentLocale,
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NodeRef nodeRef,
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NodeRef pivotNodeRef)
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{
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Map<QName, Serializable> convertedProperties = new HashMap<QName, Serializable>(newProperties.size() * 2);
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for (Map.Entry<QName, Serializable> entry : newProperties.entrySet())
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{
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QName propertyQName = entry.getKey();
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Serializable inboundValue = entry.getValue();
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// Get the current property value
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Serializable currentValue = currentProperties == null ? null : currentProperties.get(propertyQName);
|
|
// Convert the inbound property value
|
|
inboundValue = convertInboundProperty(contentLocale, nodeRef, pivotNodeRef, propertyQName, inboundValue, currentValue);
|
|
// Put the value into the map
|
|
convertedProperties.put(propertyQName, inboundValue);
|
|
}
|
|
return convertedProperties;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param inboundValue The value that must be set
|
|
* @param currentValue The current value of the property or <tt>null</tt> if not known
|
|
* @return Returns a potentially converted property that conforms to the model
|
|
*/
|
|
private Serializable convertInboundProperty(
|
|
Locale contentLocale,
|
|
NodeRef nodeRef,
|
|
NodeRef pivotNodeRef,
|
|
QName propertyQName,
|
|
Serializable inboundValue,
|
|
Serializable currentValue)
|
|
{
|
|
Serializable ret = null;
|
|
PropertyDefinition propertyDef = this.dictionaryService.getProperty(propertyQName);
|
|
//if no type definition associated to the name then just proceed
|
|
if (propertyDef == null)
|
|
{
|
|
ret = inboundValue;
|
|
}
|
|
else if (propertyDef.getDataType().getName().equals(DataTypeDefinition.MLTEXT))
|
|
{
|
|
// Don't mess with multivalued properties or instances already of type MLText
|
|
if (inboundValue instanceof MLText)
|
|
{
|
|
ret = inboundValue;
|
|
}
|
|
else if(propertyDef.isMultiValued())
|
|
{
|
|
// leave collectios of ML text alone
|
|
if(isCollectionOfMLText(inboundValue))
|
|
{
|
|
ret = inboundValue;
|
|
}
|
|
else
|
|
{
|
|
// Anything else we assume is localised
|
|
if (currentValue == null && nodeRef != null)
|
|
{
|
|
currentValue = nodeService.getProperty(nodeRef, propertyQName);
|
|
}
|
|
ArrayList<MLText> returnMLList = new ArrayList<MLText>();
|
|
if (currentValue != null)
|
|
{
|
|
Collection<MLText> currentCollection = DefaultTypeConverter.INSTANCE.getCollection(MLText.class, currentValue);
|
|
returnMLList.addAll(currentCollection);
|
|
}
|
|
Collection<String> inboundCollection = DefaultTypeConverter.INSTANCE.getCollection(String.class, inboundValue);
|
|
int count = 0;
|
|
for(String current : inboundCollection)
|
|
{
|
|
MLText newMLValue;
|
|
if(count < returnMLList.size())
|
|
{
|
|
MLText currentMLValue = returnMLList.get(count);
|
|
newMLValue = new MLText();
|
|
if (currentMLValue != null)
|
|
{
|
|
newMLValue.putAll(currentMLValue);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
newMLValue = new MLText();
|
|
}
|
|
replaceTextForLanguage(contentLocale, current, newMLValue);
|
|
if(count < returnMLList.size())
|
|
{
|
|
returnMLList.set(count, newMLValue);
|
|
}
|
|
else
|
|
{
|
|
returnMLList.add(newMLValue);
|
|
}
|
|
count++;
|
|
}
|
|
// remove locale settings for anything after
|
|
for(int i = count; i < returnMLList.size(); i++)
|
|
{
|
|
MLText currentMLValue = returnMLList.get(i);
|
|
MLText newMLValue = new MLText();
|
|
if (currentMLValue != null)
|
|
{
|
|
newMLValue.putAll(currentMLValue);
|
|
}
|
|
newMLValue.remove(contentLocale);
|
|
returnMLList.set(i, newMLValue);
|
|
}
|
|
// tidy up empty locales
|
|
ArrayList<MLText> tidy = new ArrayList<MLText>();
|
|
for(MLText mlText : returnMLList)
|
|
{
|
|
if(mlText.keySet().size() > 0)
|
|
{
|
|
tidy.add(mlText);
|
|
}
|
|
}
|
|
ret = tidy;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// This is a multilingual single-valued property
|
|
// Get the current value from the node service, if not provided
|
|
if (currentValue == null && nodeRef != null)
|
|
{
|
|
currentValue = nodeService.getProperty(nodeRef, propertyQName);
|
|
}
|
|
MLText returnMLValue = new MLText();
|
|
if (currentValue != null)
|
|
{
|
|
MLText currentMLValue = DefaultTypeConverter.INSTANCE.convert(MLText.class, currentValue);
|
|
returnMLValue.putAll(currentMLValue);
|
|
}
|
|
// Force the inbound value to be a String (it isn't MLText)
|
|
String inboundValueStr = DefaultTypeConverter.INSTANCE.convert(String.class, inboundValue);
|
|
// Update the text for the appropriate language.
|
|
replaceTextForLanguage(contentLocale, inboundValueStr, returnMLValue);
|
|
// Done
|
|
ret = returnMLValue;
|
|
}
|
|
}
|
|
else if (pivotNodeRef != null && propertyQName.equals(ContentModel.PROP_CONTENT))
|
|
{
|
|
// It is an empty translation. The content must not change if it matches
|
|
// the content of the pivot translation
|
|
ContentData pivotContentData = (ContentData) nodeService.getProperty(pivotNodeRef, ContentModel.PROP_CONTENT);
|
|
ContentData emptyContentData = (ContentData) inboundValue;
|
|
String pivotContentUrl = pivotContentData == null ? null : pivotContentData.getContentUrl();
|
|
String emptyContentUrl = emptyContentData == null ? null : emptyContentData.getContentUrl();
|
|
if (EqualsHelper.nullSafeEquals(pivotContentUrl, emptyContentUrl))
|
|
{
|
|
// They are a match. So the empty translation must be reset to it's original value
|
|
ret = (ContentData) nodeService.getProperty(nodeRef, ContentModel.PROP_CONTENT);
|
|
}
|
|
else
|
|
{
|
|
ret = inboundValue;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ret = inboundValue;
|
|
}
|
|
// Done
|
|
if (logger.isDebugEnabled() && ret != inboundValue)
|
|
{
|
|
logger.debug("Converted inbound property: \n" +
|
|
" NodeRef: " + nodeRef + "\n" +
|
|
" Property: " + propertyQName + "\n" +
|
|
" Before: " + inboundValue + "\n" +
|
|
" After: " + ret);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Replace any text in mlText having the same language (but any variant) as contentLocale
|
|
* with updatedText keyed by the language of contentLocale. This ensures that the mlText
|
|
* will have no more than one entry for the particular language.
|
|
*
|
|
* @param contentLocale
|
|
* @param updatedText
|
|
* @param mlText
|
|
*/
|
|
private void replaceTextForLanguage(Locale contentLocale, String updatedText, MLText mlText)
|
|
{
|
|
String language = contentLocale.getLanguage();
|
|
// Remove all text entries having the same language as the chosen contentLocale
|
|
// (e.g. if contentLocale is en_GB, then remove text for en, en_GB, en_US etc.
|
|
Iterator<Locale> locales = mlText.getLocales().iterator();
|
|
while (locales.hasNext())
|
|
{
|
|
Locale locale = locales.next();
|
|
if (locale.getLanguage().equals(language))
|
|
{
|
|
locales.remove();
|
|
}
|
|
}
|
|
|
|
// Add the new value for the specific language
|
|
mlText.addValue(new Locale(language), updatedText);
|
|
}
|
|
}
|