001/* 002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Thierry Delprat 018 */ 019package org.nuxeo.ecm.platform.rendition.extension; 020 021import java.util.List; 022 023import org.apache.commons.logging.Log; 024import org.apache.commons.logging.LogFactory; 025import org.nuxeo.ecm.automation.AutomationService; 026import org.nuxeo.ecm.core.api.Blob; 027import org.nuxeo.ecm.core.api.DocumentModel; 028import org.nuxeo.ecm.core.api.NuxeoPrincipal; 029import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 030import org.nuxeo.ecm.platform.rendition.service.RenditionDefinition; 031import org.nuxeo.runtime.api.Framework; 032 033public class DefaultAutomationRenditionProvider implements RenditionProvider { 034 035 private static final Log log = LogFactory.getLog(DefaultAutomationRenditionProvider.class); 036 037 public static final String VARIANT_POLICY_USER = "user"; 038 039 @Override 040 public boolean isAvailable(DocumentModel doc, RenditionDefinition def) { 041 String chain = def.getOperationChain(); 042 if (chain == null) { 043 log.error("Can not run Automation rendition if chain is not defined"); 044 return false; 045 } 046 AutomationService as = Framework.getService(AutomationService.class); 047 048 try { 049 if (as.getOperation(chain) == null) { 050 log.error("Chain " + chain + " is not defined : rendition can not be used"); 051 return false; 052 } 053 } catch (Exception e) { 054 log.error("Unable to test Rendition availability", e); 055 return false; 056 } 057 058 if (!def.isEmptyBlobAllowed()) { 059 BlobHolder bh = doc.getAdapter(BlobHolder.class); 060 if (bh == null) { 061 return false; 062 } 063 try { 064 Blob blob = bh.getBlob(); 065 if (blob == null) { 066 return false; 067 } 068 } catch (Exception e) { 069 log.error("Unable to get Blob to test Rendition availability", e); 070 return false; 071 } 072 } 073 return true; 074 } 075 076 @Override 077 public List<Blob> render(DocumentModel doc, RenditionDefinition definition) { 078 return AutomationRenderer.render(doc, definition, null); 079 } 080 081 /** 082 * Gets the optional {@link org.nuxeo.ecm.platform.rendition.Constants#RENDITION_VARIANT_PROPERTY 083 * RENDITION_VARIANT_PROPERTY} value for a given {@link RenditionDefinition}. 084 * 085 * @param doc the target document 086 * @param definition the rendition definition to use 087 * @return the generated {@link org.nuxeo.ecm.platform.rendition.Constants#RENDITION_VARIANT_PROPERTY 088 * RENDITION_VARIANT_PROPERTY} value, or {@code null} 089 * @since 8.1 090 */ 091 @Override 092 public String getVariant(DocumentModel doc, RenditionDefinition definition) { 093 if (VARIANT_POLICY_USER.equals(definition.getVariantPolicy())) { 094 NuxeoPrincipal principal = (NuxeoPrincipal) doc.getCoreSession().getPrincipal(); 095 if (principal.isAdministrator()) { 096 return org.nuxeo.ecm.platform.rendition.Constants.RENDITION_VARIANT_PROPERTY_ADMINISTRATOR_USER; 097 } else { 098 return org.nuxeo.ecm.platform.rendition.Constants.RENDITION_VARIANT_PROPERTY_USER_PREFIX 099 + principal.getName(); 100 } 101 } 102 return null; 103 } 104 105}