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

Interface PubcompInboundInterceptor

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 PubcompInboundInterceptor
extends Interceptor

Interface for the inbound PUBCOMP 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 onInboundPubcomp(PubcompInboundInput, PubcompInboundOutput) throws an exception or a call to PubcompInboundOutput.async(Duration) times out with TimeoutFallback.FAILURE, HiveMQ will ignore this interceptor and will:

1. Log the exception
2. Revert the changes to the ModifiablePubcompPacket made by the interceptor
3. Call the next PubcompInboundInterceptor or send the PUBCOMP to the server if no interceptor is left

Since:

4.3.0, CE 2020.1

Method Summary

Modifier and Type	Method	Description
void	onInboundPubcomp(@NotNull PubcompInboundInput pubcompInboundInput, @NotNull PubcompInboundOutput pubcompInboundOutput)	When a PubcompInboundInterceptor is set through any extension, this method gets called for every inbound PUBCOMP packet from any MQTT client.

Method Details

onInboundPubcomp

void onInboundPubcomp(@NotNull PubcompInboundInput pubcompInboundInput, @NotNull PubcompInboundOutput pubcompInboundOutput)

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

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

Parameters:

pubcompInboundInput - The PubcompInboundInput parameter.

pubcompInboundOutput - The PubcompInboundOutput parameter.

Since:

4.3.0, CE 2020.1