MessageTap (Hono Core 1.4.5 API)

java.lang.Object
- org.eclipse.hono.util.MessageTap

All Implemented Interfaces:

Consumer<org.apache.qpid.proton.message.Message>
```
public final class MessageTap
extends Object
implements Consumer<org.apache.qpid.proton.message.Message>
```
A consumer that inspects a received message to detect if it indicates that a device should be currently ready to receive an upstream message. Depending on the outcome the passed callbacks are invoked (effectively implementing a tap).

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`accept(org.apache.qpid.proton.message.Message msg)`
`static Consumer<org.apache.qpid.proton.message.Message>`	`getConsumer(Consumer<org.apache.qpid.proton.message.Message> messageConsumer, Consumer<TimeUntilDisconnectNotification> notificationReadyToDeliverConsumer)`	Construct a message consumer that detects an indication that a device is ready to receive an upstream message and delegates to the passed callback handlers.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.function.Consumer
andThen

- Method Detail
  - getConsumer
```
public static Consumer<org.apache.qpid.proton.message.Message> getConsumer(Consumer<org.apache.qpid.proton.message.Message> messageConsumer,
                                                                           Consumer<TimeUntilDisconnectNotification> notificationReadyToDeliverConsumer)
```
    Construct a message consumer that detects an indication that a device is ready to receive an upstream message and delegates to the passed callback handlers.
    
    Parameters:
    
    messageConsumer - Message consumer that handles generic messages.
    
    notificationReadyToDeliverConsumer - Consumer<TimeUntilDisconnectNotification> that is called when the message indicates the current readiness to receive an upstream message.
    
    Returns:
    
    The message consumer that invokes the specific handlers depending on the event type.
    
    Throws:
    
    NullPointerException - if any of the parameters are null.
  - accept
```
public void accept(org.apache.qpid.proton.message.Message msg)
```
    Specified by:
    
    accept in interface Consumer<org.apache.qpid.proton.message.Message>