public async Task<string> Load()
{
Tuple<EventHubPartitionCheckpointEntity, string> results =
await dataManager.ReadSingleTableEntryAsync(entity.PartitionKey, entity.RowKey);
if (results != null)
{
entity = results.Item1;
}
return entity.Offset;
}
/// <summary>
/// Loads a checkpoint
/// </summary>
/// <returns></returns>
public async Task <string> Load()
{
var results = await dataManager.ReadSingleTableEntryAsync(entity.PartitionKey, entity.RowKey);
if (results.Entity != null)
{
entity = results.Entity;
}
return(entity.Offset);
}
private EventHubCheckpointer(ICheckpointerSettings settings, string streamProviderName, string partition, ILoggerFactory loggerFactory)
{
if (settings == null)
{
throw new ArgumentNullException(nameof(settings));
}
if (string.IsNullOrWhiteSpace(streamProviderName))
{
throw new ArgumentNullException(nameof(streamProviderName));
}
if (string.IsNullOrWhiteSpace(partition))
{
throw new ArgumentNullException(nameof(partition));
}
persistInterval = settings.PersistInterval;
dataManager = new AzureTableDataManager <EventHubPartitionCheckpointEntity>(settings.TableName, settings.DataConnectionString, loggerFactory);
entity = EventHubPartitionCheckpointEntity.Create(streamProviderName, settings.CheckpointNamespace, partition);
}
private EventHubPartitionCheckpoint(ICheckpointSettings settings, string streamProviderName, string partition)
{
if (settings == null)
{
throw new ArgumentNullException("settings");
}
if (string.IsNullOrWhiteSpace(streamProviderName))
{
throw new ArgumentNullException("streamProviderName");
}
if (string.IsNullOrWhiteSpace(partition))
{
throw new ArgumentNullException("partition");
}
persistInterval = settings.PersistInterval;
dataManager = new AzureTableDataManager<EventHubPartitionCheckpointEntity>(settings.TableName, settings.DataConnectionString);
entity = EventHubPartitionCheckpointEntity.Create(streamProviderName, settings.CheckpointNamespace, partition);
}