Package com.hivemq.extension.sdk.api.interceptor.puback

Interface PubackInboundInterceptor

All Superinterfaces:

Interceptor

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface PubackInboundInterceptor
extends Interceptor

Interface for the inbound PUBACK interception.

Interceptors are always called by the same Thread for all messages from the same client.

If the same instance is shared between multiple clients it can be called in different Threads and must therefore be thread-safe.

When the method onInboundPuback(PubackInboundInput, PubackInboundOutput) throws an exception or a call to PubackInboundOutput.async(Duration) times out with TimeoutFallback.FAILURE, HiveMQ will ignore this interceptor and will:

1. Log the exception
2. Revert the changes to the ModifiablePubackPacket made by the interceptor
3. Call the next PubackInboundInterceptor or send the PUBACK to the server if no interceptor is left

Since:

4.3.0, CE 2020.1

Method Summary

Modifier and Type	Method	Description
void	onInboundPuback(@NotNull PubackInboundInput pubackInboundInput, @NotNull PubackInboundOutput pubackInboundOutput)	When a PubackInboundInterceptor is set through any extension, this method gets called for every inbound PUBACK packet from any MQTT client.

Method Detail

onInboundPuback

void onInboundPuback(@NotNull PubackInboundInput pubackInboundInput,
                     @NotNull PubackInboundOutput pubackInboundOutput)

When a PubackInboundInterceptor is set through any extension, this method gets called for every inbound PUBACK packet from any MQTT client.

When the extension is enabled after HiveMQ is already running, this method will also be called for future PUBACKs of clients that are already connected.

Parameters:

pubackInboundInput - The PubackInboundInput parameter.

pubackInboundOutput - The PubackInboundOutput parameter.

Since:

4.3.0, CE 2020.1