001/*
002 * (C) Copyright 2016 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 *     Thomas Roger
018 *
019 */
020
021package org.nuxeo.ecm.restapi.server.jaxrs.rendition;
022
023import javax.ws.rs.GET;
024import javax.ws.rs.core.Context;
025import javax.ws.rs.core.Request;
026
027import org.nuxeo.ecm.core.api.Blob;
028import org.nuxeo.ecm.core.api.DocumentModel;
029import org.nuxeo.ecm.platform.rendition.Rendition;
030import org.nuxeo.ecm.platform.rendition.service.RenditionService;
031import org.nuxeo.ecm.webengine.model.WebObject;
032import org.nuxeo.ecm.webengine.model.exceptions.WebResourceNotFoundException;
033import org.nuxeo.ecm.webengine.model.impl.DefaultObject;
034import org.nuxeo.runtime.api.Framework;
035
036/**
037 * @since 8.2
038 */
039@WebObject(type = "rendition")
040public class RenditionObject extends DefaultObject {
041
042    protected String renditionName;
043
044    protected DocumentModel doc;
045
046    @Override
047    protected void initialize(Object... args) {
048        assert args != null && args.length == 2;
049        doc = (DocumentModel) args[0];
050        renditionName = (String) args[1];
051    }
052
053    @Override
054    public <A> A getAdapter(Class<A> adapter) {
055        if (adapter.isAssignableFrom(Blob.class)) {
056            return adapter.cast(getRenditionBlob());
057        }
058        return super.getAdapter(adapter);
059    }
060
061    protected Blob getRenditionBlob() {
062        RenditionService renditionService = Framework.getService(RenditionService.class);
063        Rendition rendition = renditionService.getRendition(doc, renditionName);
064        if (rendition == null) {
065            throw new WebResourceNotFoundException(String.format("No rendition '%s' was found", renditionName));
066        }
067        return rendition.getBlob();
068    }
069
070    @GET
071    public Object doGet(@Context Request request) {
072        Blob blob = getRenditionBlob();
073        if (blob == null) {
074            throw new WebResourceNotFoundException(
075                    String.format("No Blob was found for rendition '%s'", renditionName));
076        }
077        return blob;
078    }
079}