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68 lines
2.8 KiB
Java
68 lines
2.8 KiB
Java
/*
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* WorldEdit, a Minecraft world manipulation toolkit
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* Copyright (C) sk89q <http://www.sk89q.com>
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* Copyright (C) WorldEdit team and contributors
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.sk89q.worldedit.command.util;
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import com.google.common.collect.ImmutableSet;
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import org.enginehub.piston.Command;
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import org.enginehub.piston.inject.InjectedValueAccess;
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import java.util.List;
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import java.util.Optional;
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import java.util.Set;
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import java.util.stream.Collectors;
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public final class SubCommandPermissionCondition extends PermissionCondition {
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private final Command.Condition aggregate;
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private SubCommandPermissionCondition(Set<String> perms, Command.Condition aggregate) {
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super(perms);
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this.aggregate = aggregate;
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}
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@Override
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public boolean satisfied(InjectedValueAccess context) {
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return aggregate.satisfied(context);
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}
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public static class Generator {
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private final List<Command> subCommands;
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public Generator(List<Command> subCommands) {
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this.subCommands = subCommands;
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}
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public Command.Condition build() {
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final List<Command.Condition> conditions = subCommands.stream().map(Command::getCondition).collect(Collectors.toList());
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final List<Optional<PermissionCondition>> permConds = conditions.stream().map(c -> c.as(PermissionCondition.class)).collect(Collectors.toList());
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if (permConds.stream().anyMatch(o -> !o.isPresent())) {
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// if any sub-command doesn't require permissions, then this command doesn't require permissions
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return new PermissionCondition(ImmutableSet.of());
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}
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// otherwise, this command requires any one subcommand to be available
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final Set<String> perms = permConds.stream().map(Optional::get).flatMap(cond -> cond.getPermissions().stream()).collect(Collectors.toSet());
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final Command.Condition aggregate = permConds.stream().map(Optional::get)
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.map(c -> (Command.Condition) c)
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.reduce(Command.Condition::or).orElse(TRUE);
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return new SubCommandPermissionCondition(perms, aggregate);
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}
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}
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}
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