org.kurento.modulecreator.codegen.JsonObjectAsMap.java Source code

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Here is the source code for org.kurento.modulecreator.codegen.JsonObjectAsMap.java

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/*
 * (C) Copyright 2016 Kurento (http://kurento.org/)
 *
 * 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.kurento.modulecreator.codegen;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;

public class JsonObjectAsMap {

    public Map<String, Object> createMapFromJsonObject(JsonObject jsonObject) {
        Map<String, Object> map = new HashMap<String, Object>();
        for (Map.Entry<String, JsonElement> entry : jsonObject.entrySet()) {
            map.put(entry.getKey(), createObjectFromJsonElement(entry.getValue()));
        }
        return map;
    }

    public Object createObjectFromJsonElement(JsonElement value) {

        if (value == null) {
            return null;
        }

        if (value instanceof JsonPrimitive) {
            JsonPrimitive primitive = (JsonPrimitive) value;

            if (primitive.isBoolean()) {
                return primitive.getAsBoolean();
            }

            if (primitive.isNumber()) {
                return primitive.getAsNumber();
            }

            if (primitive.isString()) {
                return primitive.getAsString();
            }
        }

        if (value instanceof JsonArray) {

            JsonArray array = (JsonArray) value;

            List<Object> values = new ArrayList<Object>();
            for (JsonElement element : array) {
                values.add(createObjectFromJsonElement(element));
            }

            return values;
        }

        if (value instanceof JsonObject) {
            return createObjectFromJsonElement(value);
        }

        throw new RuntimeException("Unrecognized json element: " + value);
    }

}