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Merge pull request #153 from bivashy/main
BungeeCord: BossBar compatibilty with BungeeCord 1.20-R0.2 and newer
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82 changes: 82 additions & 0 deletions
82
...rm-bungeecord/src/main/java/net/kyori/adventure/platform/bungeecord/BungeeReflection.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| /* | ||
| * This file is part of adventure-platform, licensed under the MIT License. | ||
| * | ||
| * Copyright (c) 2018-2020 KyoriPowered | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in all | ||
| * copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| */ | ||
| package net.kyori.adventure.platform.bungeecord; | ||
|
|
||
| import java.lang.invoke.MethodHandle; | ||
| import java.lang.invoke.MethodHandles; | ||
| import java.lang.invoke.MethodType; | ||
| import org.jetbrains.annotations.Nullable; | ||
|
|
||
| /** | ||
| * Reflection utilities for accessing legacy BungeeCord methods. | ||
| */ | ||
| final class BungeeReflection { | ||
| private BungeeReflection() { | ||
| } | ||
|
|
||
| private static final MethodHandles.Lookup LOOKUP = MethodHandles.lookup(); | ||
|
|
||
| /** | ||
| * Checks if the specified class has a method with the given name and parameter types. | ||
| * | ||
| * @param holderClass The class to check for the method. Can be {@code null}, in which case the method returns {@code false}. | ||
| * @param methodName The name of the method to check for. | ||
| * @param parameters The parameter types of the method. The method returns {@code false} if any parameter type is {@code null}. | ||
| * @return {@code true} if the method exists in the class; {@code false} otherwise. | ||
| */ | ||
| public static boolean hasMethod(final @Nullable Class<?> holderClass, final String methodName, final Class<?>... parameters) { | ||
| if (holderClass == null) return false; | ||
| for (final Class<?> parameter : parameters) { | ||
| if (parameter == null) return false; | ||
| } | ||
| try { | ||
| holderClass.getMethod(methodName, parameters); | ||
| return true; | ||
| } catch (final NoSuchMethodException ignored) { | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| /** | ||
| * Finds and returns a {@link MethodHandle} for the specified method of the given class. This allows for dynamic method invocation. | ||
| * | ||
| * @param holderClass The class containing the method. | ||
| * @param methodName The name of the method to find. | ||
| * @param returnType The return type of the method. | ||
| * @param parameters The parameter types of the method. | ||
| * @return A {@link MethodHandle} for the specified method, or {@code null} if the method cannot be found or if any parameter is {@code null}. | ||
| */ | ||
| public static MethodHandle findMethod(final @Nullable Class<?> holderClass, final String methodName, final Class<?> returnType, final Class<?>... parameters) { | ||
| if (holderClass == null || returnType == null) return null; | ||
| for (final Class<?> parameter : parameters) { | ||
| if (parameter == null) return null; | ||
| } | ||
| try { | ||
| return LOOKUP.findVirtual(holderClass, methodName, MethodType.methodType(returnType, parameters)); | ||
| } catch (NoSuchMethodException | IllegalAccessException ignored) { | ||
| } | ||
| return null; | ||
| } | ||
|
|
||
| } |
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