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/* |
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* This file is part of Araknemu. |
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* |
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* Araknemu is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the 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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* Araknemu is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License 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 Araknemu. If not, see <https://www.gnu.org/licenses/>. |
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* |
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* Copyright (c) 2017-2019 Vincent Quatrevieux |
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*/ |
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package fr.quatrevieux.araknemu.game.admin.exception; |
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import fr.quatrevieux.araknemu.game.admin.AdminPerformer; |
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import java.util.HashMap; |
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import java.util.Map; |
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/** |
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* Handle exceptions |
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*/ |
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public final class ExceptionHandler { |
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private final Map<Class, Function> handlers = new HashMap<>(); |
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public ExceptionHandler() { |
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register(CommandNotFoundException.class, (user, e) -> user.error("Command '{}' is not found", e.command())); |
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register(CommandException.class, (user, e) -> user.error("An error occurs during execution of '{}' : {}", e.command(), e.getMessage())); |
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register(CommandPermissionsException.class, (user, e) -> user.error("Unauthorized command '{}', you need at least these permissions {}", e.command(), e.permissions())); |
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register(ContextException.class, (user, e) -> user.error("Error during resolving context : {}", e.getMessage())); |
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register(ContextNotFoundException.class, (user, e) -> user.error("The context '{}' is not found", e.context())); |
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} |
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/** |
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* Handle the error |
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*/ |
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public void handle(AdminPerformer performer, Throwable error) { |
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if (!handlers.containsKey(error.getClass())) { |
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performer.error("Error : {}", error.toString()); |
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return; |
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} |
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handlers.get(error.getClass()).handle(performer, error); |
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} |
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private <T extends Throwable> void register(Class<T> type, Function<T> handler) { |
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handlers.put(type, handler); |
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} |
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@FunctionalInterface |
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public interface Function<T extends Throwable> { |
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/** |
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* Handle the exception |
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* |
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* @param performer The command performer |
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* @param error The triggered error |
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*/ |
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public void handle(AdminPerformer performer, T error); |
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} |
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} |
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Arakne /
Araknemu
