Java tutorial
/* * Copyright (C) 2016 PanteLegacy @ karusmc.com * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.karusmc.commandwork.reference.help; import com.karusmc.commandwork.*; import java.util.*; import java.util.function.Predicate; import java.util.stream.Collectors; import org.apache.commons.lang.StringUtils; import org.bukkit.ChatColor; import org.bukkit.command.CommandSender; /** * * @author PanteLegacy @ karusmc.com */ public class HelpParser { public String getCriteria(String[] args) { if (args.length == 1 || StringUtils.isNumeric(args[1])) { return "All"; } else { return args[1]; } } public Predicate<CommandCallable> getPredicate(CommandSender sender, String criteria) { if (criteria.equalsIgnoreCase("All")) { return command -> sender.hasPermission(command.getPermission()); } else { return command -> sender.hasPermission(command.getPermission()) && command.getName().contains(criteria); } } public List<String> getCommandUsages(Collection<CommandCallable> commands, Predicate<CommandCallable> predicate) { return commands.stream().filter(predicate).map(subcommand -> ChatColor.GOLD + subcommand.getUsage()) .collect(Collectors.toList()); } public int getPage(String[] args) { int page = 1; if (args.length != 0 && StringUtils.isNumeric(args[args.length - 1])) { int number = Integer.parseInt(args[args.length - 1]); if (number > 0) { return number; } } return page; } public int getTotalPages(int listSize, int pageSize) { if (listSize != 0) { return (int) Math.max(1, Math.ceil((double) listSize / pageSize)); } else { return 0; } } }