001/*
002 * (C) Copyright 2015 Nuxeo SA (http://nuxeo.com/) and others.
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 *     Nicolas Chapurlat <nc@nuxeo.com>
016 *     Vladimir Pasquier <vpasquier@nuxeo.com>
017 */
018package org.nuxeo.ecm.automation.io.services.codec;
019
020import java.io.IOException;
021
022import org.codehaus.jackson.JsonGenerator;
023import org.codehaus.jackson.JsonParser;
024import org.nuxeo.ecm.core.api.CoreSession;
025import org.nuxeo.ecm.core.io.marshallers.json.AbstractJsonReader;
026import org.nuxeo.ecm.core.io.marshallers.json.AbstractJsonWriter;
027import org.nuxeo.ecm.core.io.registry.MarshallerRegistry;
028import org.nuxeo.ecm.core.io.registry.context.RenderingContext;
029import org.nuxeo.runtime.api.Framework;
030
031/**
032 * @since 7.3
033 */
034public abstract class AbstractMarshallingRegistryCodec<EntityType> extends ObjectCodec<EntityType> {
035
036    String entityType;
037    Class<? extends AbstractJsonReader<EntityType>> reader;
038    Class<? extends AbstractJsonWriter<EntityType>> writer;
039
040    public AbstractMarshallingRegistryCodec(Class<EntityType> clazz, String entityType,
041            Class<? extends AbstractJsonReader<EntityType>> reader, Class<? extends AbstractJsonWriter<EntityType>> writer) {
042        super(clazz);
043        this.entityType = entityType;
044        this.reader = reader;
045        this.writer = writer;
046    }
047
048    @Override
049    public String getType() {
050        return entityType;
051    }
052
053    @Override
054    public boolean isBuiltin() {
055        return true;
056    }
057
058    @Override
059    public void write(JsonGenerator jg, EntityType value) throws IOException {
060        MarshallerRegistry registry = Framework.getService(MarshallerRegistry.class);
061        AbstractJsonWriter<EntityType> writer = registry.getInstance(null, this.writer);
062        writer.write(value,jg);
063    }
064
065    @Override
066    public EntityType read(JsonParser jp, CoreSession session) throws
067            IOException {
068        MarshallerRegistry registry = Framework.getService(MarshallerRegistry.class);
069        RenderingContext ctx = RenderingContext.CtxBuilder.session(session).get();
070        AbstractJsonReader<EntityType> reader= registry.getInstance(ctx, this.reader);
071        return reader.read(jp.readValueAsTree());
072
073    }
074}