com.softwaremagico.tm.json.ElementAdapter.java Source code

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Here is the source code for com.softwaremagico.tm.json.ElementAdapter.java

Source

package com.softwaremagico.tm.json;

/*-
 * #%L
 * Think Machine (Core)
 * %%
 * Copyright (C) 2017 - 2018 Softwaremagico
 * %%
 * This software is designed by Jorge Hortelano Otero. Jorge Hortelano Otero
 * <softwaremagico@gmail.com> Valencia (Spain).
 *  
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *  
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *  
 * You should have received a copy of the GNU General Public License along with
 * this program; If not, see <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import java.lang.reflect.Type;

import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import com.softwaremagico.tm.Element;

public abstract class ElementAdapter<E extends Element<E>> implements JsonSerializer<E>, JsonDeserializer<E> {
    private final static String ID = "id";
    private final static String LANGUAGE = "language";

    protected String getElementId(JsonElement jsonElement) {
        JsonObject jsonObject = jsonElement.getAsJsonObject();
        JsonPrimitive elementId = (JsonPrimitive) jsonObject.get(ID);
        if (elementId == null) {
            return null;
        }
        return elementId.getAsString();
    }

    protected String getLanguage(JsonElement jsonElement) {
        JsonObject jsonObject = jsonElement.getAsJsonObject();
        JsonPrimitive language = (JsonPrimitive) jsonObject.get(LANGUAGE);
        if (language == null) {
            return null;
        }
        return language.getAsString();
    }

    @Override
    public JsonElement serialize(E element, Type elementType, JsonSerializationContext jsonSerializationContext) {
        JsonObject jsonObject = new JsonObject();
        jsonObject.addProperty(ID, element.getId());
        jsonObject.addProperty(LANGUAGE, element.getLanguage());
        return jsonObject;
    }

}