public async Task<string> OpenAsync(CancellationToken cancellationToken)
{
var builder = new ServiceBusConnectionStringBuilder(_connectionString)
{
TransportType = TransportType.Amqp
};
_messagingFactory = MessagingFactory.CreateFromConnectionString(builder.ToString());
_eventHubClient = _messagingFactory.CreateEventHubClient(_eventHubName);
_consumerGroup = !string.IsNullOrEmpty(_consumerGroupName)
? _eventHubClient.GetConsumerGroup(_consumerGroupName)
: _eventHubClient.GetDefaultConsumerGroup();
_eventProcessorFactory = new EventProcessorFactory();
_leaseRepository = new ReliableStateLeaseRepository(_reliableStateManager);
_checkpointManager = new CheckpointManager(_leaseRepository);
var allocatedPartitions = await new EventHubPartitionPartitionAllocationStrategy(_serviceName, _partitionId)
.AllocateAsync(_eventHubClient, new FabricClient());
foreach (var partition in allocatedPartitions)
{
var lease = await _leaseRepository.GetOrCreateAsync(_connectionString, _consumerGroupName, _eventHubName, partition);
await _consumerGroup.RegisterProcessorFactoryAsync(lease, _checkpointManager, _eventProcessorFactory);
}
return string.Concat(_eventHubName, " @ ", _connectionString);
}
public CheckpointManager(ReliableStateLeaseRepository leaseRepository)
{
_leaseRepository = leaseRepository;
}