Class Summary Class Description PubSubProducerCallbackSimpleImplA simple implementation of PubSubProducerCallback interface for testing purposes. PubSubSharedProducerAdapterA wrapper with a unique identifier around a regular producer. PubSubSharedProducerFactoryThis abstract class provides common functionality required to create and track shared producers. PubSubSharedProducerStatsA stats class that registers and tracks shared producer related stats. SimplePubSubProduceResultImplA simple implementation of PubSubProduceResult interface for testing purposes.