Java tutorial
/** * This file is part of Bedrock, licensed under the MIT License (MIT). * <p> * Copyright (c) 2016 Helion3 http://helion3.com/ * <p> * 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: * <p> * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * <p> * 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 com.helion3.bedrock.commands; import com.google.common.collect.Iterables; import com.helion3.bedrock.Bedrock; import com.helion3.bedrock.util.Format; import org.spongepowered.api.command.CommandResult; import org.spongepowered.api.command.spec.CommandSpec; import org.spongepowered.api.text.Text; import org.spongepowered.api.text.format.TextColors; import org.spongepowered.api.world.World; public class PerformanceCommand { private PerformanceCommand() { } public static CommandSpec getCommand() { return CommandSpec.builder().description(Text.of("Display server performance statistics.")) .permission("bedrock.performance").executor((source, args) -> { source.sendMessage(Format.heading("Performance Stats")); source.sendMessage(Format.message("TPS: " + Bedrock.getGame().getServer().getTicksPerSecond())); source.sendMessage(Format.message("Worlds:")); for (World world : Bedrock.getGame().getServer().getWorlds()) { source.sendMessage(Text.of(TextColors.WHITE, world.getName() + "\n", TextColors.GRAY, " Entities: ", TextColors.YELLOW, world.getEntities().size(), TextColors.GRAY, " Chunks: ", TextColors.YELLOW, Iterables.size(world.getLoadedChunks()))); } return CommandResult.success(); }).build(); } }