mirror of
https://github.com/GeyserMC/Geyser.git
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95d65350e4
Co-authored-by: Konicai <71294714+Konicai@users.noreply.github.com>
151 lines
5.4 KiB
Java
151 lines
5.4 KiB
Java
/*
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* Copyright (c) 2019-2022 GeyserMC. http://geysermc.org
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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
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* all 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
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* THE SOFTWARE.
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*
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* @author GeyserMC
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* @link https://github.com/GeyserMC/Geyser
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*/
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package org.geysermc.geyser.registry;
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import org.checkerframework.checker.nullness.qual.Nullable;
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import org.geysermc.geyser.registry.loader.RegistryLoader;
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import java.util.function.Supplier;
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/**
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* An array registry that stores mappings as an array defined by {@link M}.
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* The M represents the value that is to be stored as part of this array.
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*
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* @param <M> the mapping type
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*/
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public class ArrayRegistry<M> extends Registry<M[]> {
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/**
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* Creates a new array registry of this class with the given input and
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* {@link RegistryLoader}. The input specified is what the registry
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* loader needs to take in.
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*
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* @param input the input
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* @param registryLoader the registry loader
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*/
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protected <I> ArrayRegistry(I input, RegistryLoader<I, M[]> registryLoader) {
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super(input, registryLoader);
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}
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/**
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* Returns the value registered by the given index.
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*
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* @param index the index
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* @return the value registered by the given index.
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*/
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@Nullable
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public M get(int index) {
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if (index >= this.mappings.length) {
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return null;
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}
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return this.mappings[index];
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}
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/**
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* Returns the value registered by the given index or the default value
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* specified if null.
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*
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* @param index the index
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* @param defaultValue the default value
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* @return the value registered by the given key or the default value
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* specified if null.
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*/
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public M getOrDefault(int index, M defaultValue) {
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M value = this.get(index);
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if (value == null) {
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return defaultValue;
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}
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return value;
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}
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/**
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* Registers a new value into this registry with the given index.
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*
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* @param index the index
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* @param value the value
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* @return a new value into this registry with the given index.
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*/
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public M register(int index, M value) {
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return this.mappings[index] = value;
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}
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/**
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* Creates a new array registry with the given {@link RegistryLoader} supplier. The
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* input type is not specified here, meaning the loader return type is either
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* predefined, or the registry is populated at a later point.
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*
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* @param registryLoader the registry loader supplier
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* @param <I> the input type
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* @param <M> the returned mappings type
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* @return a new registry with the given RegistryLoader supplier
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*/
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public static <I, M> ArrayRegistry<M> create(Supplier<RegistryLoader<I, M[]>> registryLoader) {
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return new ArrayRegistry<>(null, registryLoader.get());
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}
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/**
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* Creates a new array registry with the given {@link RegistryLoader} supplier
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* and input.
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*
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* @param input the input
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* @param registryLoader the registry loader supplier
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* @param <I> the input type
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* @param <M> the returned mappings type
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* @return a new registry with the given RegistryLoader supplier
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*/
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public static <I, M> ArrayRegistry<M> create(I input, Supplier<RegistryLoader<I, M[]>> registryLoader) {
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return new ArrayRegistry<>(input, registryLoader.get());
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}
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/**
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* Creates a new array registry with the given {@link RegistryLoader}. The
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* input type is not specified here, meaning the loader return type is either
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* predefined, or the registry is populated at a later point.
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*
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* @param registryLoader the registry loader
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* @param <I> the input type
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* @param <M> the returned mappings type
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* @return a new registry with the given RegistryLoader supplier
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*/
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public static <I, M> ArrayRegistry<M> create(RegistryLoader<I, M[]> registryLoader) {
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return new ArrayRegistry<>(null, registryLoader);
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}
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/**
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* Creates a new array registry with the given {@link RegistryLoader} and input.
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*
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* @param input the input
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* @param registryLoader the registry loader
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* @param <I> the input type
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* @param <M> the returned mappings type
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* @return a new registry with the given RegistryLoader supplier
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*/
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public static <I, M> ArrayRegistry<M> create(I input, RegistryLoader<I, M[]> registryLoader) {
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return new ArrayRegistry<>(input, registryLoader);
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}
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}
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