62 lines
2.3 KiB
Java
62 lines
2.3 KiB
Java
/*
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* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
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* Copyright (C) 2016-2024 ViaVersion and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.viaversion.viaversion.util;
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import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
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import com.github.steveice10.opennbt.tag.builtin.ListTag;
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import com.github.steveice10.opennbt.tag.builtin.Tag;
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import java.util.Map;
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import org.checkerframework.checker.nullness.qual.Nullable;
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public final class TagUtil {
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public static Tag handleDeep(final Tag tag, final TagUpdater consumer) {
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return handleDeep(null, tag, consumer);
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}
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private static Tag handleDeep(@Nullable final String key, final Tag tag, final TagUpdater consumer) {
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if (tag instanceof CompoundTag) {
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final CompoundTag compoundTag = (CompoundTag) tag;
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for (final Map.Entry<String, Tag> entry : compoundTag.entrySet()) {
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final Tag updatedTag = handleDeep(entry.getKey(), entry.getValue(), consumer);
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entry.setValue(updatedTag);
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}
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} else if (tag instanceof ListTag) {
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handleListTag((ListTag<?>) tag, consumer);
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}
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return consumer.update(key, tag);
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}
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private static <T extends Tag> void handleListTag(final ListTag<T> listTag, final TagUpdater consumer) {
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listTag.getValue().replaceAll(t -> (T) handleDeep(null, t, consumer));
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}
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@FunctionalInterface
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public interface TagUpdater {
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/**
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* Updates the given tag.
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*
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* @param key key of the tag if inside a CompoundTag
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* @param tag the tag to update
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* @return the updated tag, can be the original one
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*/
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Tag update(@Nullable String key, Tag tag);
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}
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}
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