/// <summary>
/// Initialize the data source. Also ensures that the table exists.
/// </summary>
/// <param name="storageConnectionString">Storage connection string</param>
/// <param name="tableName">Name of the table to connect to</param>
/// <param name="usesIsDeleted">Set to FALSE for tables that do not have an IsDeleted field (i.e., external tables not created by this SDK)</param>
public AzureTablesDataSource(string storageConnectionString, string tableName, bool usesIsDeleted = true)
{
if (string.IsNullOrWhiteSpace(storageConnectionString))
{
throw new ArgumentNullException(nameof(storageConnectionString));
}
if (string.IsNullOrWhiteSpace(tableName))
{
throw new ArgumentNullException(nameof(tableName));
}
StorageAccount = new AzureStorageAccount(storageConnectionString);
CurrentTableName = tableName;
UsesIsDeleted = usesIsDeleted;
_currentTableClient = new CloudTableClient(
StorageAccount.TableUri,
new StorageCredentials(StorageAccount.AccountName, StorageAccount.AccountKey)
);
_currentTableReference = _currentTableClient.GetTableReference(tableName);
if (!_currentTableReference.Exists())
{
_currentTableReference.Create();
}
}
/// <summary>
/// Instantiate the queue
/// </summary>
/// <param name="azureStorageAccount"></param>
/// <param name="queueFlushInterval">Interval time in milliseconds between queue flushes (for eg: '1000' means the queue will be flushed once a second).
/// Set longer values for queues that do not see much CRUD operations.</param>
public OperationQueue(AzureStorageAccount azureStorageAccount, int queueFlushInterval = 1000)
{
tableClient = new CloudTableClient(azureStorageAccount.TableUri, new StorageCredentials(azureStorageAccount.AccountName, azureStorageAccount.AccountKey));
ResetQueueIndex();
__TIMER_PERIOD = queueFlushInterval;
_processQueueTimer = new Timer(OnProcessQueueTimerElapsed, null, __TIMER_PERIOD, -1);
}
