use of io.pravega.shared.controller.event.CommitEvent in project pravega by pravega.
the class ControllerEventProcessors method initialize.
private void initialize() throws Exception {
// region Create commit event processor
EventProcessorGroupConfig commitReadersConfig = EventProcessorGroupConfigImpl.builder().streamName(config.getCommitStreamName()).readerGroupName(config.getCommitReaderGroupName()).eventProcessorCount(config.getCommitReaderGroupSize()).checkpointConfig(config.getCommitCheckpointConfig()).build();
EventProcessorConfig<CommitEvent> commitConfig = EventProcessorConfig.<CommitEvent>builder().config(commitReadersConfig).decider(ExceptionHandler.DEFAULT_EXCEPTION_HANDLER).serializer(COMMIT_EVENT_SERIALIZER).supplier(() -> this.commitEventProcessor).build();
log.info("Creating commit event processors");
Retry.indefinitelyWithExpBackoff(DELAY, MULTIPLIER, MAX_DELAY, e -> log.warn("Error creating commit event processor group", e)).run(() -> {
commitEventProcessors = system.createEventProcessorGroup(commitConfig, checkpointStore);
return null;
});
// endregion
// region Create abort event processor
EventProcessorGroupConfig abortReadersConfig = EventProcessorGroupConfigImpl.builder().streamName(config.getAbortStreamName()).readerGroupName(config.getAbortReaderGroupName()).eventProcessorCount(config.getAbortReaderGroupSize()).checkpointConfig(config.getAbortCheckpointConfig()).build();
EventProcessorConfig<AbortEvent> abortConfig = EventProcessorConfig.<AbortEvent>builder().config(abortReadersConfig).decider(ExceptionHandler.DEFAULT_EXCEPTION_HANDLER).serializer(ABORT_EVENT_SERIALIZER).supplier(() -> new ConcurrentEventProcessor<>(abortRequestHandler, executor)).build();
log.info("Creating abort event processors");
Retry.indefinitelyWithExpBackoff(DELAY, MULTIPLIER, MAX_DELAY, e -> log.warn("Error creating commit event processor group", e)).run(() -> {
abortEventProcessors = system.createEventProcessorGroup(abortConfig, checkpointStore);
return null;
});
// endregion
// region Create request event processor
EventProcessorGroupConfig requestReadersConfig = EventProcessorGroupConfigImpl.builder().streamName(config.getRequestStreamName()).readerGroupName(config.getRequestReaderGroupName()).eventProcessorCount(1).checkpointConfig(config.getRequestStreamCheckpointConfig()).build();
EventProcessorConfig<ControllerEvent> requestConfig = EventProcessorConfig.builder().config(requestReadersConfig).decider(ExceptionHandler.DEFAULT_EXCEPTION_HANDLER).serializer(CONTROLLER_EVENT_SERIALIZER).supplier(() -> new ConcurrentEventProcessor<>(streamRequestHandler, executor)).build();
log.info("Creating request event processors");
Retry.indefinitelyWithExpBackoff(DELAY, MULTIPLIER, MAX_DELAY, e -> log.warn("Error creating request event processor group", e)).run(() -> {
requestEventProcessors = system.createEventProcessorGroup(requestConfig, checkpointStore);
return null;
});
// endregion
log.info("Awaiting start of commit event processors");
commitEventProcessors.awaitRunning();
log.info("Awaiting start of abort event processors");
abortEventProcessors.awaitRunning();
log.info("Awaiting start of request event processors");
requestEventProcessors.awaitRunning();
}
Aggregations