org.spongepowered.common.util.persistence.JsonTranslator.java Source code

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Here is the source code for org.spongepowered.common.util.persistence.JsonTranslator.java

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/*
 * This file is part of Sponge, licensed under the MIT License (MIT).
 *
 * Copyright (c) SpongePowered <https://www.spongepowered.org>
 * Copyright (c) contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.spongepowered.common.util.persistence;

import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;
import org.spongepowered.api.data.DataContainer;
import org.spongepowered.api.data.DataQuery;
import org.spongepowered.api.data.MemoryDataContainer;
import org.spongepowered.api.data.MemoryDataView;

import java.util.Map.Entry;

public class JsonTranslator {

    public static DataContainer translateFrom(JsonObject object) {
        return (DataContainer) convert(object);
    }

    private static Object convert(JsonElement element) {
        if (element.isJsonObject()) {
            MemoryDataView container = new MemoryDataContainer();
            for (Entry<String, JsonElement> entry : ((JsonObject) element).entrySet()) {
                Object value = convert(entry.getValue());
                if (value != null) {
                    container.set(DataQuery.of(entry.getKey()), value);
                }
            }
            return container;
        } else if (element.isJsonArray()) {
            return Lists.newArrayList(Iterables.transform((JsonArray) element, JsonTranslator::convert));
        } else if (element.isJsonPrimitive()) {
            JsonPrimitive primitive = (JsonPrimitive) element;
            if (primitive.isString()) {
                return primitive.getAsString();
            } else if (primitive.isBoolean()) {
                return primitive.getAsBoolean();
            } else if (primitive.isNumber()) {
                return primitive.getAsNumber();
            }
        }
        return null;
    }

}