001/* 002 * (C) Copyright 2006-2013 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 * Vladimir Pasquier <vpasquier@nuxeo.com> 018 * Laurent Doguin <ldoguin@nuxeo.com> 019 */ 020package org.nuxeo.ecm.platform.thumbnail.listener; 021 022import static org.nuxeo.ecm.core.api.event.DocumentEventTypes.BEFORE_DOC_UPDATE; 023import static org.nuxeo.ecm.core.api.event.DocumentEventTypes.DOCUMENT_CREATED; 024 025import org.nuxeo.ecm.core.api.DocumentModel; 026import org.nuxeo.ecm.core.api.model.Property; 027import org.nuxeo.ecm.core.event.Event; 028import org.nuxeo.ecm.core.event.EventContext; 029import org.nuxeo.ecm.core.event.EventListener; 030import org.nuxeo.ecm.core.event.EventService; 031import org.nuxeo.ecm.core.event.impl.DocumentEventContext; 032import org.nuxeo.ecm.platform.thumbnail.ThumbnailConstants; 033import org.nuxeo.runtime.api.Framework; 034 035/** 036 * Thumbnail listener handling document blob update and checking changes. Fire an event if it's the case 037 * 038 * @since 5.7 039 */ 040public class CheckBlobUpdateListener implements EventListener { 041 042 @Override 043 public void handleEvent(Event event) { 044 EventContext ec = event.getContext(); 045 if (!(ec instanceof DocumentEventContext)) { 046 return; 047 } 048 DocumentEventContext context = (DocumentEventContext) ec; 049 DocumentModel doc = context.getSourceDocument(); 050 if (!doc.hasSchema("file")) { 051 return; 052 } 053 054 Property content = doc.getProperty("file:content"); 055 if (DOCUMENT_CREATED.equals(event.getName()) || content.isDirty()) { 056 057 if (BEFORE_DOC_UPDATE.equals(event.getName()) && doc.hasFacet(ThumbnailConstants.THUMBNAIL_FACET)) { 058 doc.setPropertyValue(ThumbnailConstants.THUMBNAIL_PROPERTY_NAME, null); 059 } 060 061 if (content.getValue() != null) { 062 doc.addFacet(ThumbnailConstants.THUMBNAIL_FACET); 063 Framework.getService(EventService.class).fireEvent( 064 ThumbnailConstants.EventNames.scheduleThumbnailUpdate.name(), context); 065 } 066 } 067 } 068 069}