public async Task <GrainStateRecord> Read(string partitionKey, string rowKey)
{
if (logger.IsEnabled(LogLevel.Trace))
{
logger.Trace((int)AzureProviderErrorCode.AzureTableProvider_Storage_Reading, "Reading: PartitionKey={0} RowKey={1} from Table={2}", partitionKey, rowKey, TableName);
}
try
{
Tuple <DynamicTableEntity, string> data = await tableManager.ReadSingleTableEntryAsync(partitionKey, rowKey).ConfigureAwait(false);
if (data == null || data.Item1 == null)
{
if (logger.IsEnabled(LogLevel.Trace))
{
logger.Trace((int)AzureProviderErrorCode.AzureTableProvider_DataNotFound, "DataNotFound reading: PartitionKey={0} RowKey={1} from Table={2}", partitionKey, rowKey, TableName);
}
return(null);
}
DynamicTableEntity stateEntity = data.Item1;
var record = new GrainStateRecord {
Entity = stateEntity, ETag = data.Item2
};
if (logger.IsEnabled(LogLevel.Trace))
{
logger.Trace((int)AzureProviderErrorCode.AzureTableProvider_Storage_DataRead, "Read: PartitionKey={0} RowKey={1} from Table={2} with ETag={3}", stateEntity.PartitionKey, stateEntity.RowKey, TableName, record.ETag);
}
return(record);
}
catch (Exception exc)
{
if (AzureStorageUtils.TableStorageDataNotFound(exc))
{
if (logger.IsEnabled(LogLevel.Trace))
{
logger.Trace((int)AzureProviderErrorCode.AzureTableProvider_DataNotFound, "DataNotFound reading (exception): PartitionKey={0} RowKey={1} from Table={2} Exception={3}", partitionKey, rowKey, TableName, LogFormatter.PrintException(exc));
}
return(null); // No data
}
throw;
}
}
internal async Task <GossipTableEntry> ReadConfigurationEntryAsync()
{
var result = await storage.ReadSingleTableEntryAsync(this.GlobalServiceId, GossipTableEntry.CONFIGURATION_ROW).ConfigureAwait(false);
return(result != null ? result.Item1 : null);
}