Status Events for PubNub Java SDK

Subscribe

Current category	Deprecated category	Description
None	PNNetworkUpCategory	The SDK detected that the network is online.
None	PNNetworkDownCategory	The SDK announces this when a connection isn't available, or when the SDK isn't able to reach PubNub servers.
PNUnexpectedDisconnectCategory	PNNetworkIssuesCategory	Subscribe loop failed, and the client disconnected from real-time data channels.
None	PNReconnectedCategory	The SDK was able to reconnect to PubNub.
PNConnectedCategory	PNConnectedCategory	SDK subscribed with a new mix of channels.
None	PNAccessDeniedCategory	Access Manager permission failure.
PNMalformedResponseCategory	PNMalformedResponseCategory	JSON parsing crashed.
None	PNBadRequestCategory	The server responded with a bad response error because the request is malformed.
None	PNDecryptionErrorCategory	If using decryption strategies and the decryption fails.
None	PNTimeoutCategory	Failure to establish a connection to PubNub due to a timeout.
None	PNRequestMessageCountExceedCategory	The SDK announces this error if requestMessageCountThreshold is set, and the number of messages received from PubNub (in-memory cache messages) exceeds the threshold.
PNDisconnectedCategory	PNDisconnectedCategory	The subscription has been stopped. SDK usubsrcibed from all channels.
PNConnectionError	None	The subscribe loop connection cannot be initialized.
PNSubscriptionChanged	None	SDK subscribed with a new mix of channels since the initial connection - subscribed to another channel or unsubscribed from a channel while still being subscribed to other channels. Fired every time the channel/channel group mix changes.

Non-subscribe

For non-subscribe requests like publish, there is no PNStatus returned. Instead, a Result class is used, which can either be a success or a failure.

Success and failure handling

On success, the Result class delivers the returned value (e.g., PNPublishResult). On failure, it delivers a PubNubException.

Publish success and failure handling example

pubNub.publish("abc", "test").async {
    it.onSuccess { result: PNPublishResult ->
        println(result)
    }.onFailure { exception: PubNubException ->
        println(exception)
    }
}