private async Task <Boolean> DeleteOldLogAsync(CloudBlockBlob blob, DateTimeOffset oldDate)
{
PeriodBlobLogNameInfo lni = ParseLogName(blob);
if (lni.PeriodStop < oldDate)
{
await blob.DeleteAsync(); // Log data ends before old date, delete it
}
return(lni.PeriodStart > oldDate); // Stop when we hit a log newer than the old date
}
/// <summary>Parses a blob name returning its ID, and period start and end dates.</summary>
/// <param name="blob">The blob whose name to parse.</param>
/// <returns>The log blob's ID, period start and period end dates.</returns>
public PeriodBlobLogNameInfo ParseLogName(CloudBlockBlob blob)
{
String[] tokens = blob.Name.Split(m_delimiter, StringSplitOptions.None);
PeriodBlobLogNameInfo logInfo = null;
switch (m_logOrder)
{
case PeriodBlobLogOrder.Id:
logInfo = new PeriodBlobLogNameInfo(tokens[0], FromYMD(tokens[1]), FromYMD(tokens[2]));
break;
case PeriodBlobLogOrder.Time:
logInfo = new PeriodBlobLogNameInfo(tokens[2], FromYMD(tokens[0]), FromYMD(tokens[1]));
break;
}
return(logInfo);
}
