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• LeftOrRightContextAdapter.java

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io.ultreia.java4all.util.json.adapters.LeftOrRightContextAdapter Maven / Gradle / Ivy

package io.ultreia.java4all.util.json.adapters;

/*-
 * #%L
 * Java Util extends by Ultreia.io
 * %%
 * Copyright (C) 2018 - 2024 Ultreia.io
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 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 Lesser Public License for more details.
 *
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import com.google.auto.service.AutoService;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import com.google.gson.reflect.TypeToken;
import io.ultreia.java4all.util.LeftOrRightContext;
import io.ultreia.java4all.util.json.JsonAdapter;

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

/**
 * Created at 22/04/2024.
 *
 * @author Tony Chemit - dev@tchemit.fr
 * @since 1.1.17
 */
@AutoService(JsonAdapter.class)
public class LeftOrRightContextAdapter implements JsonSerializer>, JsonDeserializer>, JsonAdapter {

    private static final String LEFT = "left";
    private static final String RIGHT = "right";

    @Override
    public JsonElement serialize(LeftOrRightContext src, Type typeOfSrc, JsonSerializationContext context) {
        JsonObject result = new JsonObject();
        result.add(LEFT, context.serialize(src.left()));
        result.add(RIGHT, context.serialize(src.right()));
        return result;
    }

    @Override
    public LeftOrRightContext deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
        Type type = ((ParameterizedType) TypeToken.get(typeOfT).getType()).getActualTypeArguments()[0];
        O left = context.deserialize(json.getAsJsonObject().get(LEFT), type);
        O right = context.deserialize(json.getAsJsonObject().get(RIGHT), type);
        return LeftOrRightContext.of(left, right);
    }

    @Override
    public Class type() {
        return LeftOrRightContext.class;
    }
}