InterceptHandler (Moquette - broker 0.15 API)

All Known Implementing Classes:

AbstractInterceptHandler
```
public interface InterceptHandler
```
This interface is used to inject code for intercepting broker events.
The events can act only as observers.
Almost every method receives a subclass of MqttMessage, except onDisconnect that receives the client id string and onSubscribe and onUnsubscribe that receive a Subscription object.

Field Summary

Fields
Modifier and Type Field Description

static Class<?>[] ALL_MESSAGE_TYPES

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`getID()`
`Class<?>[]`	`getInterceptedMessageTypes()`
`void`	`onConnect(InterceptConnectMessage msg)`
`void`	`onConnectionLost(InterceptConnectionLostMessage msg)`
`void`	`onDisconnect(InterceptDisconnectMessage msg)`
`void`	`onMessageAcknowledged(InterceptAcknowledgedMessage msg)`
`void`	`onPublish(InterceptPublishMessage msg)`	Called when a message is published.
`void`	`onSubscribe(InterceptSubscribeMessage msg)`
`void`	`onUnsubscribe(InterceptUnsubscribeMessage msg)`

- Field Detail
  - ALL_MESSAGE_TYPES
```
static final Class<?>[] ALL_MESSAGE_TYPES
```
- Method Detail
  - getID
```
String getID()
```
    Returns:
    
    the identifier of this intercept handler.
  - getInterceptedMessageTypes
```
Class<?>[] getInterceptedMessageTypes()
```
    Returns:
    
    the InterceptMessage subtypes that this handler can process. If the result is null or equal to ALL_MESSAGE_TYPES, all the message types will be processed.
  - onConnect
```
void onConnect(InterceptConnectMessage msg)
```
  - onDisconnect
```
void onDisconnect(InterceptDisconnectMessage msg)
```
  - onConnectionLost
```
void onConnectionLost(InterceptConnectionLostMessage msg)
```
  - onPublish
```
void onPublish(InterceptPublishMessage msg)
```
    Called when a message is published. The receiver MUST release the payload of the message, either by calling super.onPublish, or by calling msg.getPayload.release() directly.
    
    Parameters:
    
    msg - The message that was published.
  - onSubscribe
```
void onSubscribe(InterceptSubscribeMessage msg)
```
  - onUnsubscribe
```
void onUnsubscribe(InterceptUnsubscribeMessage msg)
```
  - onMessageAcknowledged
```
void onMessageAcknowledged(InterceptAcknowledgedMessage msg)
```