Java tutorial
/* * Copyright (c) 2016 Lucko (Luck) <luck@lucko.me> * * 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.luckperms.bungee; import com.google.common.collect.Maps; import me.lucko.luckperms.api.context.ContextCalculator; import me.lucko.luckperms.api.context.MutableContextSet; import net.md_5.bungee.api.connection.ProxiedPlayer; import java.util.Map; public class BackendServerCalculator implements ContextCalculator<ProxiedPlayer> { private static final String WORLD_KEY = "world"; private static String getServer(ProxiedPlayer player) { return player.getServer() == null ? null : (player.getServer().getInfo() == null ? null : player.getServer().getInfo().getName()); } @Override public MutableContextSet giveApplicableContext(ProxiedPlayer subject, MutableContextSet accumulator) { String server = getServer(subject); if (server != null) { accumulator.add(Maps.immutableEntry(WORLD_KEY, server)); } return accumulator; } @Override public boolean isContextApplicable(ProxiedPlayer subject, Map.Entry<String, String> context) { if (!context.getKey().equals(WORLD_KEY)) { return false; } String server = getServer(subject); return server != null && server.equals(context.getValue()); } }