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 *     Gabriel Barata <gbarata@nuxeo.com>
018 *
019 */
020package org.nuxeo.ecm.liveconnect.core;
021
022import org.codehaus.jackson.node.ObjectNode;
023import org.nuxeo.ecm.automation.core.util.JSONBlobDecoder;
024import org.nuxeo.ecm.core.api.Blob;
025import org.nuxeo.ecm.core.api.NuxeoException;
026import org.nuxeo.ecm.core.blob.BlobManager;
027import org.nuxeo.ecm.core.blob.BlobProvider;
028import org.nuxeo.runtime.api.Framework;
029
030import java.io.IOException;
031
032/**
033 * @since 8.4
034 */
035public class JSONLiveConnectBlobDecoder implements JSONBlobDecoder {
036
037    @Override
038    public Blob getBlobFromJSON(ObjectNode jsonObject) {
039
040        if (!(jsonObject.has("providerId") && jsonObject.has("user") && jsonObject.has("fileId"))) {
041            return null;
042        }
043
044        String providerId = jsonObject.get("providerId").getTextValue();
045        BlobProvider provider = Framework.getService(BlobManager.class).getBlobProvider(providerId);
046        if (!(provider instanceof LiveConnectBlobProvider)) {
047            return null;
048        }
049        try {
050            return ((LiveConnectBlobProvider) provider).toBlob(
051                new LiveConnectFileInfo(jsonObject.get("user").getTextValue(),
052                    jsonObject.get("fileId").getTextValue()));
053        } catch (IOException e) {
054            throw new NuxeoException(e);
055        }
056        
057    }
058
059}