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• NpcEventManager.java

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com.github.juliarn.npclib.api.event.manager.NpcEventManager Maven / Gradle / Ivy

/*
 * This file is part of npc-lib, licensed under the MIT License (MIT).
 *
 * Copyright (c) 2022-2023 Julian M., Pasqual K. and 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 com.github.juliarn.npclib.api.event.manager;

import com.github.juliarn.npclib.api.event.NpcEvent;
import com.github.juliarn.npclib.api.log.PlatformLogger;
import java.util.Objects;
import java.util.function.Predicate;
import org.jetbrains.annotations.Contract;
import org.jetbrains.annotations.NotNull;

public interface NpcEventManager {

  @Contract("_, _ -> new")
  static @NotNull NpcEventManager createDefault(boolean debugEnabled, @NotNull PlatformLogger logger) {
    Objects.requireNonNull(logger, "logger");
    return new DefaultNpcEventManager(debugEnabled, logger);
  }

  @Contract("_ -> param1")
   @NotNull E post(@NotNull E event);

   @NotNull NpcEventSubscription registerEventHandler(
    @NotNull Class eventType,
    @NotNull NpcEventConsumer consumer);

   @NotNull NpcEventSubscription registerEventHandler(
    @NotNull Class eventType,
    @NotNull NpcEventConsumer consumer,
    int eventHandlerPriority);

  void unregisterEventHandlerIf(@NotNull Predicate> subscriptionFilter);
}