Command Listener

Command listener: When the Mongo driver executes command statements, messages are published before execution starts, after successful execution, and after a failure.

Note:

When using the command listener, it needs to be registered as a SpringBean.

com.mongoplus.listener.Listener

• This interface is the listener interface; all listeners should implement this interface and its methods.
• commandStarted: Handles command start events.
• commandSucceeded: Handles command success events.
• commandFailed: Handles command failure events.
• getOrder: Specifies the listener order.

Example

First, implement the Listener interface and register the class as a SpringBean

// Register as SpringBean
@Component
public class CustomListener implements Listener {}

Then, implement the Listener methods to listen to commands

// Register as SpringBean
@Component
public class CustomListener implements Listener {
    @Override
    public void commandStarted(CommandStarted commandStarted) {
        System.out.println(JSON.toJSONString(commandStarted));
    }

    @Override
    public void commandSucceeded(CommandSucceeded commandSucceeded) {
        System.out.println(JSON.toJSONString(commandSucceeded));
    }

    @Override
    public void commandFailed(CommandFailed commandFailed) {
        System.out.println(JSON.toJSONString(commandFailed));
    }

    @Override
    public int getOrder() {
        return 0;
    }
}