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 * Antoine Taillefer <ataillefer@nuxeo.com> 019 * 020 */ 021package org.nuxeo.ecm.platform.thumbnail.factories; 022 023import org.nuxeo.ecm.core.api.Blob; 024import org.nuxeo.ecm.core.api.CoreSession; 025import org.nuxeo.ecm.core.api.DocumentModel; 026import org.nuxeo.ecm.core.api.DocumentRef; 027import org.nuxeo.ecm.core.api.NuxeoException; 028import org.nuxeo.ecm.core.api.thumbnail.ThumbnailAdapter; 029 030/** 031 * Default thumbnail factory for all folderish documents 032 * 033 * @since 5.7 034 */ 035public class ThumbnailFolderishFactory extends ThumbnailDocumentFactory { 036 037 @Override 038 public Blob getThumbnail(DocumentModel doc, CoreSession session) { 039 if (!doc.isFolder()) { 040 throw new NuxeoException("Document is not folderish"); 041 } 042 DocumentRef docRef = doc.getRef(); 043 if (session.hasChildren(docRef)) { 044 DocumentModel child = session.getChildren(docRef).get(0); 045 if (!child.isFolder()) { 046 return session.getChildren(docRef).get(0).getAdapter(ThumbnailAdapter.class).getThumbnail(session); 047 } 048 } 049 return getDefaultThumbnail(doc); 050 } 051 052 @Override 053 public Blob computeThumbnail(DocumentModel doc, CoreSession session) { 054 return null; 055 } 056}