de.escalon.hypermedia.spring.de.escalon.hypermedia.spring.jackson.ResourceSerializer.java Source code

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Here is the source code for de.escalon.hypermedia.spring.de.escalon.hypermedia.spring.jackson.ResourceSerializer.java

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/*
 * Copyright (c) 2014. Escalon System-Entwicklung, Dietrich Schulten
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
 */

package de.escalon.hypermedia.spring.de.escalon.hypermedia.spring.jackson;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializationConfig;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.ser.BeanSerializerFactory;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;
import com.fasterxml.jackson.databind.util.NameTransformer;
import org.springframework.hateoas.Resource;

import java.io.IOException;

/**
 * Serializer for json-ld representation of Resource.
 * Created by dschulten on 15.09.2014.
 */
public class ResourceSerializer extends StdSerializer<Resource> {

    public ResourceSerializer() {
        super(Resource.class);
    }

    @Override
    public void serialize(Resource value, JsonGenerator jgen, SerializerProvider provider) throws IOException {

        final SerializationConfig config = provider.getConfig();
        JavaType javaType = config.constructType(value.getClass());

        JsonSerializer<Object> serializer = BeanSerializerFactory.instance.createSerializer(provider, javaType);

        jgen.writeStartObject();
        serializer.unwrappingSerializer(NameTransformer.NOP).serialize(value, jgen, provider);

        //        // make a Link Serializer
        //        for (Link link : value.getLinks()) {
        //            final String rel = link.getRel();
        //            String linkFieldName = IanaRels.isIanaRel(rel) ? IANA_REL_PREFIX + rel : rel;
        //            jgen.writeFieldName(linkFieldName);
        //            jgen.writeStartObject();
        //            jgen.writeStringField("@id", link.getHref());
        //            jgen.writeEndObject();
        //        }
        jgen.writeEndObject();

    }

}