001/* 002 * (C) Copyright 2015 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 GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl-2.1.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Thomas Roger 016 */ 017 018package org.nuxeo.ecm.platform.picture.rendition; 019 020import java.util.Collections; 021import java.util.List; 022 023import org.nuxeo.ecm.core.api.Blob; 024import org.nuxeo.ecm.core.api.DocumentModel; 025import org.nuxeo.ecm.platform.picture.api.adapters.PictureResourceAdapter; 026import org.nuxeo.ecm.platform.rendition.extension.RenditionProvider; 027import org.nuxeo.ecm.platform.rendition.service.RenditionDefinition; 028 029/** 030 * Provides a rendition based on a picture view (referenced through the rendition definition name). 031 * 032 * @since 7.2 033 */ 034public class PictureRenditionProvider implements RenditionProvider { 035 036 @Override 037 public boolean isAvailable(DocumentModel doc, RenditionDefinition definition) { 038 PictureResourceAdapter picture = doc.getAdapter(PictureResourceAdapter.class); 039 return picture != null && picture.getPictureFromTitle(definition.getName()) != null; 040 } 041 042 @Override 043 public List<Blob> render(DocumentModel doc, RenditionDefinition definition) { 044 PictureResourceAdapter picture = doc.getAdapter(PictureResourceAdapter.class); 045 if (picture == null) { 046 return Collections.emptyList(); 047 } 048 049 Blob blob = picture.getPictureFromTitle(definition.getName()); 050 return blob != null ? Collections.singletonList(blob) : Collections.emptyList(); 051 } 052}