me.lucko.shadow.bukkit.PackageVersion Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of shadow-bukkit Show documentation
Extra annotations for use with shadow and Bukkit
There is a newer version: 1.20.1
/*
 * This file is part of shadow-bukkit, licensed under the MIT License.
 *
 *  Copyright (c) lucko (Luck) 
 *  Copyright (c) contributors
 *
 *  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 me.lucko.shadow.bukkit;

import org.bukkit.Bukkit;
import org.checkerframework.checker.nullness.qual.NonNull;

/**
 * An enumeration of CraftBukkit package versions.
 */
public enum PackageVersion {
    NONE {
        @Override
        protected @NonNull String getPackageComponent() {
            return ".";
        }
    },
    v1_7_R1,
    v1_7_R2,
    v1_7_R3,
    v1_7_R4,
    v1_8_R1,
    v1_8_R2,
    v1_8_R3,
    v1_9_R1,
    v1_9_R2,
    v1_10_R1,
    v1_11_R1,
    v1_12_R1,
    v1_13_R1,
    v1_13_R2,
    v1_14_R1,
    v1_15_R1,
    v1_16_R1;

    /**
     * The nms prefix (without the version component)
     */
    public static final String NMS = "net.minecraft.server";

    /**
     * The obc prefix (without the version component)
     */
    public static final String OBC = "org.bukkit.craftbukkit";

    private final @NonNull String nmsPrefix;
    private final @NonNull String obcPrefix;

    PackageVersion() {
        this.nmsPrefix = NMS + getPackageComponent();
        this.obcPrefix = OBC + getPackageComponent();
    }

    protected @NonNull String getPackageComponent() {
        return "." + name() + ".";
    }

    /**
     * Prepends the versioned NMS prefix to the given class name
     *
     * @param className the name of the class
     * @return the full class name
     */
    public @NonNull String nms(@NonNull String className) {
        return this.nmsPrefix + className;
    }

    /**
     * Prepends the versioned NMS prefix to the given class name
     *
     * @param className the name of the class
     * @return the class represented by the full class name
     */
    public @NonNull Class nmsClass(@NonNull String className) throws ClassNotFoundException {
        return Class.forName(nms(className));
    }

    /**
     * Prepends the versioned OBC prefix to the given class name
     *
     * @param className the name of the class
     * @return the full class name
     */
    public @NonNull String obc(@NonNull String className) {
        return this.obcPrefix + className;
    }

    /**
     * Prepends the versioned OBC prefix to the given class name
     *
     * @param className the name of the class
     * @return the class represented by the full class name
     */
    public @NonNull Class obcClass(@NonNull String className) throws ClassNotFoundException {
        return Class.forName(obc(className));
    }

    private static final String RUNTIME_VERSION_STRING;
    private static final PackageVersion RUNTIME_VERSION;

    static {
        String serverVersion = "";
        // check we're dealing with a "CraftServer" and that the server isn't non-versioned.
        Class server = Bukkit.getServer().getClass();
        if (server.getSimpleName().equals("CraftServer") && !server.getName().equals("org.bukkit.craftbukkit.CraftServer")) {
            String obcPackage = server.getPackage().getName();
            // check we're dealing with a craftbukkit implementation.
            if (obcPackage.startsWith("org.bukkit.craftbukkit.")) {
                // return the package version.
                serverVersion = obcPackage.substring("org.bukkit.craftbukkit.".length());
            }
        }
        RUNTIME_VERSION_STRING = serverVersion;

        PackageVersion runtimeVersion = null;
        if (RUNTIME_VERSION_STRING.isEmpty()) {
            runtimeVersion = PackageVersion.NONE;
        } else {
            try {
                runtimeVersion = PackageVersion.valueOf(serverVersion);
            } catch (IllegalArgumentException e) {
                // ignore
            }
        }
        RUNTIME_VERSION = runtimeVersion;
    }

    /**
     * Gets the package version for the current runtime server instance.
     *
     * @return the package version of the current runtime
     */
    public static @NonNull PackageVersion runtimeVersion() {
        if (RUNTIME_VERSION == null) {
            throw new IllegalStateException("Unknown package version: " + RUNTIME_VERSION_STRING);
        }
        return RUNTIME_VERSION;
    }

}