80 lines
2.8 KiB
Java
80 lines
2.8 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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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package com.viaversion.viaversion.api.minecraft.item.data;
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import com.viaversion.viaversion.api.type.Type;
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import io.netty.buffer.ByteBuf;
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import org.checkerframework.checker.nullness.qual.Nullable;
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public abstract class Filterable<T> {
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private final T raw;
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private final T filtered;
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protected Filterable(final T raw, @Nullable final T filtered) {
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this.raw = raw;
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this.filtered = filtered;
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}
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public T raw() {
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return raw;
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}
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public boolean isFiltered() {
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return filtered != null;
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}
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public @Nullable T filtered() {
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return filtered;
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}
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public T get() {
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return filtered != null ? filtered : raw;
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}
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public abstract static class FilterableType<T, F extends Filterable<T>> extends Type<F> {
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private final Type<T> elementType;
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private final Type<T> optionalElementType;
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protected FilterableType(final Type<T> elementType, final Type<T> optionalElementType, final Class<F> outputClass) {
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super(outputClass);
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this.elementType = elementType;
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this.optionalElementType = optionalElementType;
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}
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@Override
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public F read(final ByteBuf buffer) throws Exception {
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final T raw = elementType.read(buffer);
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final T filtered = optionalElementType.read(buffer);
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return create(raw, filtered);
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}
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@Override
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public void write(final ByteBuf buffer, final F value) throws Exception {
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elementType.write(buffer, value.raw());
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optionalElementType.write(buffer, value.filtered());
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}
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protected abstract F create(T raw, T filtered);
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}
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}
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