org.eclipse.winery.common.json.TTopologyTemplateSerializer.java Source code

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Here is the source code for org.eclipse.winery.common.json.TTopologyTemplateSerializer.java

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/*******************************************************************************
 * Copyright (c) 2012-2013 University of Stuttgart.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and the Apache License 2.0 which both accompany this distribution,
 * and are available at http://www.eclipse.org/legal/epl-v10.html
 * and http://www.apache.org/licenses/LICENSE-2.0
 *
 * Contributors:
 *     Oliver Kopp - initial API and implementation
 *******************************************************************************/
package org.eclipse.winery.common.json;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.winery.model.tosca.TEntityTemplate;
import org.eclipse.winery.model.tosca.TNodeTemplate;
import org.eclipse.winery.model.tosca.TRelationshipTemplate;
import org.eclipse.winery.model.tosca.TTopologyTemplate;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

public class TTopologyTemplateSerializer extends JsonSerializer<TTopologyTemplate> {

    /**
     * Does NOT wrap the result into an object. Assumes that the current
     * position at jgen is in an object
     *
     * @param value the list of entity templates to serialize
     */
    public void serialize(List<TEntityTemplate> value, JsonGenerator jgen, SerializerProvider provider)
            throws IOException {
        List<TRelationshipTemplate> relationshipTemplates = new ArrayList<>();

        jgen.writeFieldName("nodeTemplates");
        jgen.writeStartObject();
        for (TEntityTemplate template : value) {
            if (template instanceof TNodeTemplate) {
                // write out as <id> : <default serialization>
                jgen.writeFieldName(template.getId());
                provider.defaultSerializeValue(template, jgen);

            } else {
                assert (template instanceof TRelationshipTemplate);
                relationshipTemplates.add((TRelationshipTemplate) template);
            }
        }
        jgen.writeEndObject();

        jgen.writeFieldName("relationshipTemplates");
        jgen.writeStartObject();
        for (TRelationshipTemplate template : relationshipTemplates) {
            // write out as <id> : <default serialization>
            jgen.writeFieldName(template.getId());
            provider.defaultSerializeValue(template, jgen);
        }
        jgen.writeEndObject();
    }

    @Override
    public void serialize(TTopologyTemplate topologyTemplate, JsonGenerator jgen, SerializerProvider provider)
            throws IOException {
        jgen.writeStartObject();

        // write out the other fields unmodified
        jgen.writeFieldName("documentation");
        provider.defaultSerializeValue(topologyTemplate.getDocumentation(), jgen);
        jgen.writeFieldName("any");
        provider.defaultSerializeValue(topologyTemplate.getAny(), jgen);
        jgen.writeFieldName("otherAttributes");
        provider.defaultSerializeValue(topologyTemplate.getOtherAttributes(), jgen);

        // finally, write the topology template
        this.serialize(topologyTemplate.getNodeTemplateOrRelationshipTemplate(), jgen, provider);

        jgen.writeEndObject();
    }
}