001/*
002 * (C) Copyright 2010 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 * Contributors:
016 * Nuxeo - initial API and implementation
017 */
018
019package org.nuxeo.ecm.platform.rendition.impl;
020
021import java.util.List;
022
023import org.nuxeo.ecm.core.api.Blob;
024import org.nuxeo.ecm.core.api.DocumentModel;
025import org.nuxeo.ecm.core.api.NuxeoException;
026import org.nuxeo.ecm.platform.rendition.Rendition;
027import org.nuxeo.ecm.platform.rendition.extension.RenditionProvider;
028import org.nuxeo.ecm.platform.rendition.service.RenditionDefinition;
029
030/**
031 * Implementation of the {@link Rendition} interface that is applicable for rendition created on the fly
032 *
033 * @author <a href="mailto:tdelprat@nuxeo.com">Tiry</a>
034 */
035public class LiveRendition extends LazyRendition implements Rendition {
036
037    protected final DocumentModel doc;
038
039    public LiveRendition(DocumentModel doc, RenditionDefinition definition) {
040        super(definition);
041        this.doc = doc;
042    }
043
044    @Override
045    public boolean isStored() {
046        return false;
047    }
048
049    @Override
050    public DocumentModel getHostDocument() {
051        return doc;
052    }
053
054    @Override
055    protected List<Blob> computeRenditionBlobs() {
056
057        RenditionProvider provider = getDefinition().getProvider();
058        if (provider == null) {
059            throw new NuxeoException("No Rendition provider defined");
060        }
061
062        return provider.render(getHostDocument(), getDefinition());
063    }
064
065}