Java tutorial
/* * This file is part of LuckPerms, licensed under the MIT License. * * Copyright (c) lucko (Luck) <luck@lucko.me> * 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.luckperms.common.commands.impl.misc; import com.google.common.collect.Maps; import com.google.gson.JsonObject; import me.lucko.luckperms.api.Node; import me.lucko.luckperms.common.actionlog.ExtendedLogEntry; import me.lucko.luckperms.common.commands.ArgumentPermissions; import me.lucko.luckperms.common.commands.CommandException; import me.lucko.luckperms.common.commands.CommandResult; import me.lucko.luckperms.common.commands.abstraction.SharedSubCommand; import me.lucko.luckperms.common.commands.abstraction.SingleCommand; import me.lucko.luckperms.common.commands.sender.Sender; import me.lucko.luckperms.common.commands.utils.CommandUtils; import me.lucko.luckperms.common.constants.CommandPermission; import me.lucko.luckperms.common.locale.CommandSpec; import me.lucko.luckperms.common.locale.LocaleManager; import me.lucko.luckperms.common.locale.Message; import me.lucko.luckperms.common.model.PermissionHolder; import me.lucko.luckperms.common.node.NodeModel; import me.lucko.luckperms.common.plugin.LuckPermsPlugin; import me.lucko.luckperms.common.utils.DateUtil; import me.lucko.luckperms.common.utils.Predicates; import me.lucko.luckperms.common.webeditor.WebEditorUtils; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; import java.util.stream.Collectors; public class ApplyEditsCommand extends SingleCommand { public ApplyEditsCommand(LocaleManager locale) { super(CommandSpec.APPLY_EDITS.spec(locale), "ApplyEdits", CommandPermission.APPLY_EDITS, Predicates.notInRange(1, 2)); } @Override public CommandResult execute(LuckPermsPlugin plugin, Sender sender, List<String> args, String label) throws CommandException { String code = args.get(0); String who = args.size() == 2 ? args.get(1) : null; if (code.isEmpty()) { Message.APPLY_EDITS_INVALID_CODE.send(sender, code); return CommandResult.INVALID_ARGS; } JsonObject data = WebEditorUtils.getDataFromGist(code); if (data == null) { Message.APPLY_EDITS_UNABLE_TO_READ.send(sender, code); return CommandResult.FAILURE; } if (who == null) { if (!data.has("who") || data.get("who").getAsString().isEmpty()) { Message.APPLY_EDITS_NO_TARGET.send(sender); return CommandResult.STATE_ERROR; } who = data.get("who").getAsString(); } PermissionHolder holder = WebEditorUtils.getHolderFromIdentifier(plugin, sender, who); if (holder == null) { // the #getHolderFromIdentifier method will send the error message onto the sender return CommandResult.STATE_ERROR; } if (ArgumentPermissions.checkModifyPerms(plugin, sender, getPermission().get(), holder)) { Message.COMMAND_NO_PERMISSION.send(sender); return CommandResult.NO_PERMISSION; } ExtendedLogEntry.build().actor(sender).acted(holder).action("applyedits", code).build().submit(plugin, sender); Set<NodeModel> rawNodes = WebEditorUtils.deserializePermissions(data.getAsJsonArray("nodes")); Set<Node> before = new HashSet<>(holder.getEnduringNodes().values()); Set<Node> nodes = rawNodes.stream().map(NodeModel::toNode).collect(Collectors.toSet()); holder.setEnduringNodes(nodes); Map.Entry<Set<Node>, Set<Node>> diff = diff(before, nodes); int additions = diff.getKey().size(); int deletions = diff.getValue().size(); String additionsSummary = "addition" + (additions == 1 ? "" : "s"); String deletionsSummary = "deletion" + (deletions == 1 ? "" : "s"); Message.APPLY_EDITS_SUCCESS.send(sender, holder.getFriendlyName()); Message.APPLY_EDITS_SUCCESS_SUMMARY.send(sender, additions, additionsSummary, deletions, deletionsSummary); for (Node n : diff.getKey()) { Message.APPLY_EDITS_DIFF_ADDED.send(sender, formatNode(n)); } for (Node n : diff.getValue()) { Message.APPLY_EDITS_DIFF_REMOVED.send(sender, formatNode(n)); } SharedSubCommand.save(holder, sender, plugin); return CommandResult.SUCCESS; } private static String formatNode(Node n) { return n.getPermission() + " &7(" + (n.getValuePrimitive() ? "&a" : "&c") + n.getValuePrimitive() + "&7)" + CommandUtils.getAppendableNodeContextString(n) + (n.isTemporary() ? " &7(" + DateUtil.formatDateDiffShort(n.getExpiryUnixTime()) + ")" : ""); } private static Map.Entry<Set<Node>, Set<Node>> diff(Set<Node> before, Set<Node> after) { // entries in before but not after are being removed // entries in after but not before are being added Set<Node> added = new HashSet<>(after); added.removeAll(before); Set<Node> removed = new HashSet<>(before); removed.removeAll(after); return Maps.immutableEntry(added, removed); } @Override public boolean shouldDisplay() { return false; } }