Apache Mina FTP Server Events

@{45}（在版本 5.2 中添加）侦听某些 Apache Mina FTP 服务器事件，并将其发布为 @{46}，任何 @{47} bean、@{48} bean 方法或 @{49} 都可以接收该事件。

The ApacheMinaFtplet, added in version 5.2, listens for certain Apache Mina FTP server events and publishes them as ApplicationEvent s which can be received by any ApplicationListener bean, @EventListener bean method, or Event Inbound Channel Adapter.

当前支持的事件有：

Currently, supported events are:

  • SessionOpenedEvent - a client session was opened

  • DirectoryCreatedEvent - a directory was created

  • FileWrittenEvent - a file was written to

  • PathMovedEvent - a file or directory was renamed

  • PathRemovedEvent - a file or directory was removed

  • SessionClosedEvent - the client has disconnected

这些事件中的每一个都是 ApacheMinaFtpEvent 的子类；你可以配置单个监听器以接收所有事件类型。每个事件的 source 属性是一个 FtpSession，你可以从中获取诸如客户端地址等信息；抽象事件中提供了一个方便的 getSession() 方法。

Each of these is a subclass of ApacheMinaFtpEvent; you can configure a single listener to receive all the event types. The source property of each event is a FtpSession, from which you can obtain information such as the client address; a convenient getSession() method is provided on the abstract event.

除了会话打开/关闭之外的事件都具有另一个属性 FtpRequest，其中包含诸如命令和自变量等属性。

Events other than session open/close have another property FtpRequest which has properties such as the command and arguments.

若要使用监听器（它必须是一个 Spring Bean）配置服务器，请将其添加到服务器工厂：

To configure the server with the listener (which must be a Spring bean), add it to the server factory:

FtpServerFactory serverFactory = new FtpServerFactory();
...
ListenerFactory factory = new ListenerFactory();
...
serverFactory.addListener("default", factory.createListener());
serverFactory.setFtplets(new HashMap<>(Collections.singletonMap("springFtplet", apacheMinaFtpletBean)));
server = serverFactory.createServer();
server.start();

若要使用 Spring Integration 事件适配器使用这些事件：

To consume these events using a Spring Integration event adapter:

@Bean
public ApplicationEventListeningMessageProducer eventsAdapter() {
    ApplicationEventListeningMessageProducer producer =
        new ApplicationEventListeningMessageProducer();
    producer.setEventTypes(ApacheMinaFtpEvent.class);
    producer.setOutputChannel(eventChannel());
    return producer;
}