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/*
* Copyright (C) 2022 NotEnoughUpdates contributors
*
* This file is part of NotEnoughUpdates.
*
* NotEnoughUpdates 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.
*
* NotEnoughUpdates 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with NotEnoughUpdates. If not, see <https://www.gnu.org/licenses/>.
*/
package io.github.moulberry.notenoughupdates.util;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import java.util.stream.StreamSupport;
public class JsonUtils {
public static Stream<JsonElement> getJsonArrayAsStream(JsonArray array) {
return StreamSupport.stream(array.spliterator(), false);
}
public static <T> List<T> transformJsonArrayToList(
JsonArray array,
Function<? super JsonElement, ? extends T> mapper
) {
return getJsonArrayAsStream(array).map(mapper).collect(Collectors.toList());
}
public static <T> List<T> getJsonArrayOrEmpty(
JsonObject rootObject,
String name,
Function<? super JsonElement, ? extends T> mapper
) {
if (rootObject == null || !rootObject.has(name)) {
return Collections.emptyList();
}
JsonElement jsonElement = rootObject.get(name);
if (jsonElement.isJsonArray()) {
return transformJsonArrayToList(jsonElement.getAsJsonArray(), mapper);
}
return Collections.emptyList();
}
public static <T> JsonArray transformListToJsonArray(
List<T> things,
Function<? super T, ? extends JsonElement> mapper
) {
JsonArray array = new JsonArray();
for (T t : things) {
array.add(mapper.apply(t));
}
return array;
}
public static <T> Map<String, T> transformJsonObjectToMap(
JsonObject object,
Function<? super JsonElement, ? extends T> mapper
) {
Map<String, T> map = new HashMap<>();
for (Map.Entry<String, JsonElement> entry : object.entrySet()) {
map.put(entry.getKey(), mapper.apply(entry.getValue()));
}
return map;
}
}
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