org.emfjson.jackson.databind.ser.ResourceSerializer.java Source code

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Here is the source code for org.emfjson.jackson.databind.ser.ResourceSerializer.java

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/*
 * Copyright (c) 2015 Guillaume Hillairet.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Guillaume Hillairet - initial API and implementation
 *
 */
package org.emfjson.jackson.databind.ser;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.emfjson.jackson.databind.type.EcoreTypeFactory;
import org.emfjson.jackson.utils.Cache;

import java.io.IOException;

public class ResourceSerializer extends JsonSerializer<Resource> {

    EcoreTypeFactory factory2 = new EcoreTypeFactory();

    @Override
    public void serialize(Resource value, JsonGenerator jg, SerializerProvider provider) throws IOException {
        provider.setAttribute("cache", new Cache());
        provider.setAttribute("typeFactory", factory2);

        if (value.getContents().size() == 1) {
            serializeOne(value.getContents().get(0), jg, provider);
        } else {
            jg.writeStartArray();
            for (EObject o : value.getContents()) {
                serializeOne(o, jg, provider);
            }
            jg.writeEndArray();
        }
    }

    private void serializeOne(EObject object, JsonGenerator jg, SerializerProvider provider) throws IOException {
        final JavaType type = factory2.constructSimpleType(object.eClass());
        final JsonSerializer<Object> serializer = provider.findValueSerializer(type);

        if (serializer != null) {
            serializer.serialize(object, jg, provider);
        }
    }

    @Override
    public Class<Resource> handledType() {
        return Resource.class;
    }

}