001/*
002 * (C) Copyright 2013-2017 Nuxeo (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 *     dmetzler
018 */
019package org.nuxeo.ecm.automation.io.services;
020
021import java.util.List;
022
023import org.apache.logging.log4j.LogManager;
024import org.apache.logging.log4j.Logger;
025import org.nuxeo.ecm.automation.io.services.codec.CodecDescriptor;
026import org.nuxeo.ecm.automation.io.services.codec.ObjectCodecService;
027import org.nuxeo.ecm.webengine.JsonFactoryManager;
028import org.nuxeo.runtime.api.Framework;
029import org.nuxeo.runtime.model.ComponentContext;
030import org.nuxeo.runtime.model.DefaultComponent;
031
032/**
033 * @since 5.7.3
034 */
035public class IOComponent extends DefaultComponent {
036
037    private static final Logger log = LogManager.getLogger(IOComponent.class);
038
039    /**
040     * @since 10.3
041     */
042    public static final String XP_CODECS = "codecs";
043
044    private JsonFactoryManager jsonFactoryManager;
045
046    private ObjectCodecService codecs;
047
048    @Override
049    public <T> T getAdapter(Class<T> adapter) {
050        if (ObjectCodecService.class.isAssignableFrom(adapter)) {
051            return adapter.cast(codecs);
052        } else if (JsonFactoryManager.class.isAssignableFrom(adapter)) {
053            return adapter.cast(jsonFactoryManager);
054        }
055        return super.getAdapter(adapter);
056    }
057
058    @Override
059    public void start(ComponentContext context) {
060        super.start(context);
061        jsonFactoryManager = Framework.getService(JsonFactoryManager.class);
062        codecs = new ObjectCodecService(jsonFactoryManager.getJsonFactory());
063        List<CodecDescriptor> descriptors = getDescriptors(XP_CODECS);
064        descriptors.forEach(d -> {
065            try {
066                codecs.addCodec(d.klass.getDeclaredConstructor().newInstance());
067            } catch (ReflectiveOperationException e) {
068                log.error("Unable to instantiate codec", e);
069            }
070        });
071        codecs.postInit();
072    }
073
074    @Override
075    public void stop(ComponentContext context) throws InterruptedException {
076        super.stop(context);
077        codecs = null;
078    }
079
080}