/// <summary>
/// Deletes all the logs of a level and older than the provided date.
/// </summary>
public void DeleteOldLogsOfLevel(LogLevel level, DateTime olderThanUtc)
{
// Algorithm:
// Iterate over the logs, queuing deletions up to 50 items at a time,
// then restart; continue until no deletions are queued
var deleteQueue = new List <string>(DeleteBatchSize);
var blobContainer = LevelToContainer(level);
do
{
deleteQueue.Clear();
foreach (var blobName in _blobs.ListBlobNames(blobContainer, string.Empty))
{
var dateTime = ParseDateTimeFromName(blobName);
if (dateTime < olderThanUtc)
{
deleteQueue.Add(blobName);
}
if (deleteQueue.Count == DeleteBatchSize)
{
break;
}
}
foreach (var blobName in deleteQueue)
{
_blobs.DeleteBlobIfExist(blobContainer, blobName);
}
} while (deleteQueue.Count > 0);
}
// UpdateBlobIfExistOrDeleteAsync
public static Task <BlobWithETag <T> > UpdateBlobIfExistOrDeleteAsync <T>(this IBlobStorageProvider provider, string containerName, string blobName,
Func <T, Maybe <T> > update, CancellationToken cancellationToken, IDataSerializer serializer = null)
{
return(provider.UpsertBlobOrSkipAsync(containerName, blobName, () => Maybe <T> .Empty, update, cancellationToken, serializer)
.Then(b =>
{
if (b == null)
{
provider.DeleteBlobIfExist(containerName, blobName);
}
return b;
}));
}
/// <summary>
/// Deletes a blob if it exists.
/// </summary>
/// <remarks>
/// <para>This method is idempotent.</para>
/// </remarks>
public static bool DeleteBlobIfExist(this IBlobStorageProvider provider, IBlobLocation location)
{
return(provider.DeleteBlobIfExist(location.ContainerName, location.Path));
}
public void FixtureSetUp()
{
BlobStorage.CreateContainerIfNotExist(ContainerName);
BlobStorage.DeleteBlobIfExist(ContainerName, BlobName);
}
/// <summary>
/// Remove the cloud configuration file.
/// </summary>
public void RemoveConfiguration()
{
_blobs.DeleteBlobIfExist(
AssemblyLoader.ContainerName,
AssemblyLoader.ConfigurationBlobName);
}
/// <summary>
/// Remove the state information of a cloud service
/// </summary>
public void ResetServiceState(string serviceName)
{
_blobs.DeleteBlobIfExist(new CloudServiceStateName(serviceName));
}
/// <summary>Deletes the counter.</summary>
/// <returns><c>true</c> if the counter has actually been deleted by the call,
/// and <c>false</c> otherwise.</returns>
public bool Delete()
{
return(_provider.DeleteBlobIfExist(_containerName, _blobName));
}
/// <summary>
/// Remove the scheduling information of a cloud service
/// </summary>
public void ResetSchedule(string serviceName)
{
_blobs.DeleteBlobIfExist(new ScheduledServiceStateName(serviceName));
}