org.sprintapi.hyperdata.gson.GsonHyperDataSerializer.java Source code

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Here is the source code for org.sprintapi.hyperdata.gson.GsonHyperDataSerializer.java

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/*
 * Copyright 2013 the original author or authors.
 *
 *  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 org.sprintapi.hyperdata.gson;

import java.lang.reflect.Type;
import java.util.Map;

import org.sprintapi.hyperdata.HyperMap;

import com.google.gson.JsonElement;
import com.google.gson.JsonNull;
import com.google.gson.JsonObject;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

public class GsonHyperDataSerializer implements JsonSerializer<HyperMap> {

    @Override
    public JsonElement serialize(HyperMap src, Type typeOfSrc, JsonSerializationContext context) {
        if (src == null) {
            return JsonNull.INSTANCE;
        }

        JsonObject obj = new JsonObject();

        final Map<String, Object> metadata = src.getMetadata();
        if (metadata != null) {
            for (String name : metadata.keySet()) {
                Object value = metadata.get(name);
                obj.add(Constants.META_CHAR.concat(name), context.serialize(value));
            }
        }
        for (String name : src.names()) {
            Object value = src.get(name);
            obj.add(name, context.serialize(value));
        }
        return obj;
    }
}