消息推送系统

public interface MessageSender {

void sendMessage(String content, String recipient);

}

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public class SmsSender implements MessageSender {

@Override

public void sendMessage(String content, String recipient) {

// 使用Twilio发送短信逻辑

System.out.println("Sending SMS to " + recipient + ": " + content);

}

}

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public class InAppSender implements MessageSender {

@Override

public void sendMessage(String content, String recipient) {

// 模拟站内信发送逻辑

System.out.println("In-app message sent to " + recipient + ": " + content);

}

}

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public class MessageDispatcher {

private final List senders;

public MessageDispatcher(List senders) {

this.senders = senders;

}

public void dispatchMessage(MessageType type, String content, String recipient) {

switch (type) {

case SMS:

senders.get(0).sendMessage(content, recipient);

break;

case EMAIL:

senders.get(1).sendMessage(content, recipient);

break;

case IN_APP:

数据可视化

senders.get(2).sendMessage(content, recipient);

break;

default:

throw new IllegalArgumentException("Unknown message type");

}

}

}

]]>