com.google.cloud.spring.pubsub.core.health

Interface HealthTrackerRegistry

All Known Implementing Classes:

HealthTrackerRegistryImpl

public interface HealthTrackerRegistry

A registry for the HealthTracker health trackers created per ProjectSubscriptionName.

Since:

2.0.6

Author:

Emmanouil Gkatziouras

Method Summary

Modifier and Type	Method and Description
void	addListener(Subscriber subscriber) Attaches a listener to a Pub/Sub subscriber provided a HealthTracker is registered for that subscription.
Collection<HealthTracker>	healthTrackers() Retrieve all the health trackers registered.
boolean	isTracked(com.google.pubsub.v1.ProjectSubscriptionName projectSubscriptionName) Check if a ProjectSubscriptionName has a HealthTracker registered.
void	processedMessage(com.google.pubsub.v1.ProjectSubscriptionName projectSubscriptionName) Propagate that a message has been processed to the corresponding HealthTracker if registered.
HealthTracker	registerTracker(com.google.pubsub.v1.ProjectSubscriptionName projectSubscriptionName) Create a tracker for given ProjectSubscriptionName and add tracker to registry.
HealthTracker	registerTracker(String subscriptionName) Create a tracker for given subscription name and add tracker to registry.
default MessageReceiver	wrap(com.google.pubsub.v1.ProjectSubscriptionName subscriptionName, MessageReceiver messageReceiver) Wrap a message receiver for a ProjectSubscriptionName.

Method Detail

registerTracker

HealthTracker registerTracker(String subscriptionName)

Create a tracker for given subscription name and add tracker to registry.

Parameters:

subscriptionName - the subscription name to create a ProjectSubscriptionName using the default project-Id.

Returns:

the HealthTracker that has been created and registered.

registerTracker

HealthTracker registerTracker(com.google.pubsub.v1.ProjectSubscriptionName projectSubscriptionName)

Create a tracker for given ProjectSubscriptionName and add tracker to registry.

Parameters:

projectSubscriptionName - the full subscription name

Returns:

the HealthTracker that has been created and registered.

isTracked

boolean isTracked(com.google.pubsub.v1.ProjectSubscriptionName projectSubscriptionName)

Check if a ProjectSubscriptionName has a HealthTracker registered.

Parameters:

projectSubscriptionName - the full subscription name.

Returns:

true if HealthTracker is registered.

wrap

default MessageReceiver wrap(com.google.pubsub.v1.ProjectSubscriptionName subscriptionName,
                             MessageReceiver messageReceiver)

Wrap a message receiver for a ProjectSubscriptionName. A HealthTracker will be created and registered. On a new message received the registered HealthTracker will record its processing.

Parameters:

subscriptionName - the full ProjectSubscriptionName name to monitor.

messageReceiver - the MessageReceiver to wrap.

Returns:

messageReceiver the wrapped MessageReceiver.

processedMessage

void processedMessage(com.google.pubsub.v1.ProjectSubscriptionName projectSubscriptionName)

Propagate that a message has been processed to the corresponding HealthTracker if registered.

Parameters:

projectSubscriptionName - the full ProjectSubscriptionName name to monitor.

addListener

void addListener(Subscriber subscriber)

Attaches a listener to a Pub/Sub subscriber provided a HealthTracker is registered for that subscription. On subscriber termination, the corresponding HealthTracker shall be removed from the registry.

Parameters:

subscriber - the subscriber to attach a listener.

healthTrackers

Collection<HealthTracker> healthTrackers()

Retrieve all the health trackers registered.

Returns: