SpongeプラグインでSpringを使う

springdemo_core_EventConfig.java

package net.orekyuu.springdemo.core;

import net.orekyuu.springdemo.SpringDemo;
import org.spongepowered.api.Sponge;
import org.spongepowered.api.event.EventManager;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

//イベント周りの設定とか
@Configuration
public class EventConfig {

    @Autowired
    private EventConverter eventConverter;

    //EventConverterをEventManagerに登録する
    @Bean
    public EventManager eventManager() {
        EventManager manager = Sponge.getEventManager();
        manager.registerListeners(springDemo(), eventConverter);
        return manager;
    }

    @Bean
    public SpringDemo springDemo() {
        return SpringDemo.getInstance();
    }

}

springdemo_core_EventConverter.java

package net.orekyuu.springdemo.core;

import org.spongepowered.api.event.Event;
import org.spongepowered.api.event.Listener;
import org.spongepowered.api.event.network.ClientConnectionEvent;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.stereotype.Component;

//全てのSpongeのイベントを受け取って、Springのイベントに変換する
@Component
public class EventConverter {

    @Autowired
    private ApplicationEventPublisher publisher;

    @Listener
    public void onSpongeEvent(Event event) {
        //SpongeのイベントをSpringに流す
        publisher.publishEvent(new SpongeEvent<>(event));
    }
}

springdemo_core_SpongeEvent.java

package net.orekyuu.springdemo.core;

import net.orekyuu.springdemo.SpringDemo;
import org.spongepowered.api.event.Event;
import org.springframework.context.ApplicationEvent;

import java.util.Objects;

public class SpongeEvent<T extends Event> extends ApplicationEvent {

    private final T event;

    public SpongeEvent(T event) {
        super(SpringDemo.getInstance()); //とりあえず適当に渡しておく
        Objects.requireNonNull(event);
        this.event = event;
    }

    public T getEvent() {
        return event;
    }
}

springdemo_event_PlayerJoinEventListener.java

package net.orekyuu.springdemo.event;

import net.orekyuu.springdemo.service.PlayerMessageService;
import net.orekyuu.springdemo.core.SpongeEvent;
import org.spongepowered.api.event.network.ClientConnectionEvent;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.event.EventListener;
import org.springframework.stereotype.Component;

//プレイヤーがサーバーに入った時のイベントを受け取ってなにかする
@Component
public class PlayerJoinEventListener {

    @Autowired
    public PlayerMessageService playerMessageService;

    @EventListener
    public void handleOnPlayerJoin(SpongeEvent<ClientConnectionEvent.Join> event) {
        playerMessageService.sendMessageToPlayer(event.getEvent().getTargetEntity(), "Hello!");
    }
}

springdemo_service_PlayerMessageService.java

package net.orekyuu.springdemo.service;

import org.spongepowered.api.entity.living.player.Player;
import org.spongepowered.api.text.Text;
import org.spongepowered.api.text.format.TextColors;
import org.spongepowered.api.text.format.TextStyles;
import org.springframework.stereotype.Component;

//プレイヤーにメッセージを送る機能を提供するサービス
@Component
public class PlayerMessageService {

    public void sendMessageToPlayer(Player player, String message) {
        player.sendMessage(Text.of(TextColors.AQUA, TextStyles.BOLD, message + " " + player.getName()));
    }
}

springdemo_SpringDemo.java

package net.orekyuu.springdemo;

import org.spongepowered.api.event.Listener;
import org.spongepowered.api.event.game.state.GameConstructionEvent;
import org.spongepowered.api.plugin.Plugin;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;

@Plugin(
        id = "springdemo",
        name = "SpringDemo",
        version = "1.0-SNAPSHOT"
)
public class SpringDemo {

    private ApplicationContext context;

    private static SpringDemo INSTANCE;

    @Listener
    public void onServerStart(GameConstructionEvent event) {
        INSTANCE = this;
        context = new AnnotationConfigApplicationContext("net.orekyuu.springdemo");
    }

    public static SpringDemo getInstance() {
        return INSTANCE;
    }

}