001/* 002 * Copyright (c) 2006-2013 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the Eclipse Public License v1.0 006 * which accompanies this distribution, and is available at 007 * http://www.eclipse.org/legal/epl-v10.html 008 * 009 * Contributors: 010 * Vladimir Pasquier <vpasquier@nuxeo.com> 011 * Laurent Doguin <ldoguin@nuxeo.com> 012 */ 013package org.nuxeo.ecm.platform.thumbnail.listener; 014 015import static org.nuxeo.ecm.core.api.event.DocumentEventTypes.BEFORE_DOC_UPDATE; 016import static org.nuxeo.ecm.core.api.event.DocumentEventTypes.DOCUMENT_CREATED; 017 018import org.nuxeo.ecm.core.api.DocumentModel; 019import org.nuxeo.ecm.core.api.model.Property; 020import org.nuxeo.ecm.core.event.Event; 021import org.nuxeo.ecm.core.event.EventContext; 022import org.nuxeo.ecm.core.event.EventListener; 023import org.nuxeo.ecm.core.event.EventService; 024import org.nuxeo.ecm.core.event.impl.DocumentEventContext; 025import org.nuxeo.ecm.platform.thumbnail.ThumbnailConstants; 026import org.nuxeo.runtime.api.Framework; 027 028/** 029 * Thumbnail listener handling document blob update and checking changes. Fire an event if it's the case 030 * 031 * @since 5.7 032 */ 033public class CheckBlobUpdateListener implements EventListener { 034 035 @Override 036 public void handleEvent(Event event) { 037 EventContext ec = event.getContext(); 038 if (!(ec instanceof DocumentEventContext)) { 039 return; 040 } 041 DocumentEventContext context = (DocumentEventContext) ec; 042 DocumentModel doc = context.getSourceDocument(); 043 if (!doc.hasSchema("file")) { 044 return; 045 } 046 047 Property content = doc.getProperty("file:content"); 048 if (DOCUMENT_CREATED.equals(event.getName()) || content.isDirty()) { 049 050 if (BEFORE_DOC_UPDATE.equals(event.getName()) && doc.hasFacet(ThumbnailConstants.THUMBNAIL_FACET)) { 051 doc.setPropertyValue(ThumbnailConstants.THUMBNAIL_PROPERTY_NAME, null); 052 } 053 054 if (content.getValue() != null) { 055 doc.addFacet(ThumbnailConstants.THUMBNAIL_FACET); 056 Framework.getLocalService(EventService.class).fireEvent( 057 ThumbnailConstants.EventNames.scheduleThumbnailUpdate.name(), context); 058 } 059 } 060 } 061 062}