nl.pvanassen.highchart.api.serializer.NullableDoubleSerializer.java Source code

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Here is the source code for nl.pvanassen.highchart.api.serializer.NullableDoubleSerializer.java

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/*
 * Copyright 2015 Gamma Associates Ltd.
 *
 * 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 nl.pvanassen.highchart.api.serializer;

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonNull;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import java.lang.reflect.Type;
import nl.pvanassen.highchart.api.NullableDouble;

/**
 *
 * @author shaun.lefeuvre
 */
public class NullableDoubleSerializer implements JsonSerializer<NullableDouble>, JsonDeserializer<NullableDouble> {

    public JsonElement serialize(final NullableDouble src, final Type typeOfSrc,
            final JsonSerializationContext context) {
        if (src.getValue() == null) {
            return new JsonPrimitive("NullableDouble.NULL");
        }
        return new JsonPrimitive(src.getValue());
    }

    public NullableDouble deserialize(final JsonElement json, final Type typeOfT,
            final JsonDeserializationContext context) throws JsonParseException {
        if (json.getAsString().equals("NullableDouble.NULL")) {
            return NullableDouble.NULL_INSTANCE;
        }
        return NullableDouble.of(json.getAsDouble());
    }
}