001/*
002 * (C) Copyright 2015 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 *     Nicolas Chapurlat <[email protected]>
018 *     Vladimir Pasquier <[email protected]>
019 */
020package org.nuxeo.ecm.automation.io.services.codec;
021
022import java.io.IOException;
023
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
031import com.fasterxml.jackson.core.JsonGenerator;
032import com.fasterxml.jackson.core.JsonParser;
033
034/**
035 * @since 7.3
036 */
037public abstract class AbstractMarshallingRegistryCodec<EntityType> extends ObjectCodec<EntityType> {
038
039    String entityType;
040    Class<? extends AbstractJsonReader<EntityType>> reader;
041    Class<? extends AbstractJsonWriter<EntityType>> writer;
042
043    public AbstractMarshallingRegistryCodec(Class<EntityType> clazz, String entityType,
044            Class<? extends AbstractJsonReader<EntityType>> reader, Class<? extends AbstractJsonWriter<EntityType>> writer) {
045        super(clazz);
046        this.entityType = entityType;
047        this.reader = reader;
048        this.writer = writer;
049    }
050
051    @Override
052    public String getType() {
053        return entityType;
054    }
055
056    @Override
057    public boolean isBuiltin() {
058        return true;
059    }
060
061    @Override
062    public void write(JsonGenerator jg, EntityType value) throws IOException {
063        MarshallerRegistry registry = Framework.getService(MarshallerRegistry.class);
064        AbstractJsonWriter<EntityType> writer = registry.getInstance(null, this.writer);
065        writer.write(value,jg);
066    }
067
068    @Override
069    public EntityType read(JsonParser jp, CoreSession session) throws
070            IOException {
071        MarshallerRegistry registry = Framework.getService(MarshallerRegistry.class);
072        RenderingContext ctx = RenderingContext.CtxBuilder.session(session).get();
073        AbstractJsonReader<EntityType> reader= registry.getInstance(ctx, this.reader);
074        return reader.read(jp.readValueAsTree());
075
076    }
077}