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Merged DEV/SWIFT to HEAD
25458: added OpenCMIS server 25555: Don't initialize servlet context if it is not present git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@28000 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Derek Hulley
304
source/java/org/alfresco/opencmis/CMISRenditionMapping.java
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304
source/java/org/alfresco/opencmis/CMISRenditionMapping.java
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/*
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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.opencmis;
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import java.io.Serializable;
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import java.math.BigInteger;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Set;
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import org.alfresco.model.ContentModel;
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import org.alfresco.repo.rendition.executer.ImageRenderingEngine;
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import org.alfresco.repo.security.authentication.AuthenticationUtil;
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import org.alfresco.repo.security.authentication.AuthenticationUtil.RunAsWork;
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import org.alfresco.repo.transaction.RetryingTransactionHelper.RetryingTransactionCallback;
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import org.alfresco.service.cmr.rendition.RenditionDefinition;
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import org.alfresco.service.cmr.rendition.RenditionService;
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import org.alfresco.service.cmr.repository.ChildAssociationRef;
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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.NodeService;
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import org.alfresco.service.namespace.QName;
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import org.alfresco.service.transaction.TransactionService;
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import org.apache.chemistry.opencmis.commons.data.RenditionData;
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import org.apache.chemistry.opencmis.commons.exceptions.CmisFilterNotValidException;
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import org.apache.chemistry.opencmis.commons.impl.dataobjects.RenditionDataImpl;
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public class CMISRenditionMapping
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{
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private NodeService nodeService;
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private ContentService contentService;
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private RenditionService renditionService;
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private TransactionService transactionService;
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private Map<String, List<String>> kindToRenditionNames;
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private Map<String, String> renditionNamesToKind;
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private Map<String, BigInteger[]> renditionNameToSize;
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public CMISRenditionMapping(NodeService nodeService, ContentService contentService,
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RenditionService renditionService, TransactionService transactionService,
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Map<String, List<String>> renditionKinds)
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{
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this.nodeService = nodeService;
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this.contentService = contentService;
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this.renditionService = renditionService;
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this.transactionService = transactionService;
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if (renditionKinds == null)
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{
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this.kindToRenditionNames = new HashMap<String, List<String>>();
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} else
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{
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this.kindToRenditionNames = renditionKinds;
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}
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renditionNamesToKind = new HashMap<String, String>();
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for (Entry<String, List<String>> entry : renditionKinds.entrySet())
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{
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for (String renditionName : entry.getValue())
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{
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renditionNamesToKind.put(renditionName, entry.getKey());
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}
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}
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cacheRenditionSizes();
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}
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private void cacheRenditionSizes()
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{
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renditionNameToSize = AuthenticationUtil.runAs(new RunAsWork<Map<String, BigInteger[]>>()
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{
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public Map<String, BigInteger[]> doWork() throws Exception
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{
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return transactionService.getRetryingTransactionHelper().doInTransaction(
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new RetryingTransactionCallback<Map<String, BigInteger[]>>()
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{
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public Map<String, BigInteger[]> execute() throws Exception
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{
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Map<String, BigInteger[]> rn2s = new HashMap<String, BigInteger[]>();
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List<RenditionDefinition> allRenditionDefs = renditionService
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.loadRenditionDefinitions();
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for (RenditionDefinition rd : allRenditionDefs)
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{
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QName renditionDefinitionName = rd.getRenditionName();
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Number width = (Number) rd
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.getParameterValue(ImageRenderingEngine.PARAM_RESIZE_WIDTH);
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Number height = (Number) rd
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.getParameterValue(ImageRenderingEngine.PARAM_RESIZE_HEIGHT);
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if ((width != null) || (height != null))
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{
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BigInteger[] size = new BigInteger[2];
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size[0] = (width == null ? null : BigInteger.valueOf(width.longValue()));
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size[1] = (height == null ? null : BigInteger.valueOf(height.longValue()));
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rn2s.put(renditionDefinitionName.getLocalName(), size);
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}
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}
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return rn2s;
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};
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}, true);
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}
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}, AuthenticationUtil.getSystemUserName());
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}
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public List<RenditionData> getRenditions(NodeRef nodeRef, String renditionFilter, BigInteger maxItems,
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BigInteger skipCount)
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{
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List<RenditionData> result = new ArrayList<RenditionData>();
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// split the filter
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Set<String> filterSet = splitRenditionFilter(renditionFilter);
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if ((filterSet != null) && (filterSet.contains(CMISConnector.RENDITION_NONE)))
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{
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// "cmis:none" found -> no renditions
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return result;
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}
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// convert BigIntegers to int
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int max = (maxItems == null ? Integer.MAX_VALUE : maxItems.intValue());
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int skip = (skipCount == null || skipCount.intValue() < 0 ? 0 : skipCount.intValue());
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if (max > 0)
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{
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// find all renditions and filter them
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List<ChildAssociationRef> renditionList = renditionService.getRenditions(nodeRef);
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int lastIndex = (max + skip > renditionList.size() ? renditionList.size() : max + skip) - 1;
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for (int i = skip; i <= lastIndex; i++)
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{
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ChildAssociationRef rendition = renditionList.get(i);
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NodeRef rendNodeRef = rendition.getChildRef();
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String rendName = rendition.getQName().getLocalName();
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// get and check content
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QName contentProperty = ContentModel.PROP_CONTENT;
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Serializable contentPropertyName = nodeService.getProperty(rendNodeRef,
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ContentModel.PROP_CONTENT_PROPERTY_NAME);
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if (contentPropertyName != null)
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{
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contentProperty = (QName) contentPropertyName;
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}
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ContentReader reader = contentService.getReader(rendNodeRef, contentProperty);
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if ((reader == null) || (reader.exists()))
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{
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// no content -> no rendition
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continue;
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}
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// get and clean MIME type
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String mimeType = reader.getMimetype();
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if (mimeType.indexOf(';') > 3)
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{
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mimeType = mimeType.substring(0, mimeType.indexOf(';')).trim();
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}
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// if a filter is set, check it
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if (filterSet != null)
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{
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boolean include = false;
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for (String f : filterSet)
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{
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if (f.indexOf('/') == -1)
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{
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// found a kind, not a MIME type
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List<String> renditionNames = kindToRenditionNames.get(f);
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if (renditionNames.contains(rendName))
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{
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include = true;
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break;
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}
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} else if (f.endsWith("*"))
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{
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// found MIME type with wildcard
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if (mimeType.startsWith(f.substring(0, f.length() - 2)))
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{
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include = true;
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break;
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}
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} else
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{
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// found complete MIME type
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if (mimeType.equals(f))
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{
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include = true;
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break;
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}
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}
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}
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// if no filter matches, skip this rendition
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if (!include)
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{
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continue;
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}
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}
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// gather rendition data
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String title = rendName;
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String kind = (renditionNamesToKind.containsKey(rendName) ? renditionNamesToKind.get(rendName)
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: rendName);
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BigInteger length = BigInteger.valueOf(reader.getSize());
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BigInteger width = null;
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BigInteger height = null;
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if (renditionNameToSize.containsKey(rendName))
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{
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BigInteger[] size = renditionNameToSize.get(rendName);
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width = size[0];
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height = size[1];
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}
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// finally add this rendition
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result.add(createRenditionData(rendNodeRef, mimeType, title, kind, length, width, height));
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}
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}
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return result;
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}
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private Set<String> splitRenditionFilter(String filter)
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{
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if (filter == null)
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{
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return null;
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}
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if (filter.trim().length() == 0)
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{
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return null;
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}
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Set<String> result = new HashSet<String>();
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for (String s : filter.split(","))
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{
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s = s.trim();
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if (s.equals("*"))
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{
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return null;
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} else if (s.indexOf('*') > -1)
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{
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if (!s.endsWith("*"))
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{
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throw new CmisFilterNotValidException("Rendition filter is invalid: " + s);
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}
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result.add(s);
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} else if (s.equalsIgnoreCase(CMISConnector.RENDITION_NONE))
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{
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result.clear();
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result.add(CMISConnector.RENDITION_NONE);
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break;
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} else if (s.length() > 0)
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{
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result.add(s);
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}
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}
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return result;
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}
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private RenditionData createRenditionData(NodeRef rendNodeRef, String mimeType, String title, String kind,
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BigInteger length, BigInteger width, BigInteger height)
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{
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RenditionDataImpl result = new RenditionDataImpl();
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result.setStreamId(rendNodeRef.toString());
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result.setMimeType(mimeType);
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result.setTitle(title);
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result.setKind(kind);
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result.setBigLength(length);
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result.setBigWidth(width);
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result.setBigHeight(height);
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result.setRenditionDocumentId(rendNodeRef.toString());
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return result;
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}
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}
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