001/*
002 * (C) Copyright 2015 Nuxeo SA (http://nuxeo.com/) and contributors.
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 *     Florent Guillaume
016 */
017package org.nuxeo.ecm.core.blob;
018
019import java.util.HashMap;
020import java.util.Map;
021
022import org.nuxeo.common.xmap.annotation.XNode;
023import org.nuxeo.common.xmap.annotation.XNodeMap;
024import org.nuxeo.common.xmap.annotation.XObject;
025import org.nuxeo.ecm.core.api.NuxeoException;
026
027/**
028 * Descriptor for a {@link BlobDispatcher} and its configuration.
029 *
030 * @since 7.3
031 */
032@XObject(value = "blobdispatcher")
033public class BlobDispatcherDescriptor {
034
035    public BlobDispatcherDescriptor() {
036    }
037
038    @XNode("class")
039    public Class<? extends BlobDispatcher> klass;
040
041    @XNodeMap(value = "property", key = "@name", type = HashMap.class, componentType = String.class)
042    public Map<String, String> properties = new HashMap<String, String>();
043
044    private BlobDispatcher instance;
045
046    public synchronized BlobDispatcher getBlobDispatcher() {
047        if (instance == null) {
048            if (klass == null) {
049                throw new NuxeoException("Missing class in blob dispatcher descriptor");
050            }
051            BlobDispatcher blobDispatcher;
052            try {
053                blobDispatcher = klass.newInstance();
054            } catch (ReflectiveOperationException e) {
055                throw new NuxeoException(e);
056            }
057            blobDispatcher.initialize(properties);
058            instance = blobDispatcher;
059        }
060        return instance;
061    }
062
063}