private async Task <AcquireLeaseResult> Renew(string category, AcquiredLease acquiredLease)
{
var leaseClient = GetBlobClient(category, acquiredLease.ResourceKey).GetBlobLeaseClient(acquiredLease.Token);
try
{
await leaseClient.RenewAsync();
return(new AcquireLeaseResult(new AcquiredLease(acquiredLease.ResourceKey, acquiredLease.Duration, acquiredLease.Token, DateTime.UtcNow),
ResponseCode.OK, null));
}
catch (RequestFailedException e)
{
ResponseCode statusCode;
//This mapping is based on references : https://docs.microsoft.com/en-us/rest/api/storageservices/blob-service-error-codes
// https://docs.microsoft.com/en-us/rest/api/storageservices/Lease-Blob?redirectedfrom=MSDN
switch (e.Status)
{
case 404:
case 409:
case 412: statusCode = ResponseCode.InvalidToken; break;
default: statusCode = ResponseCode.TransientFailure; break;
}
return(new AcquireLeaseResult(new AcquiredLease(acquiredLease.ResourceKey), statusCode, e));
}
}
private async Task <AcquireLeaseResult> Renew(string category, AcquiredLease acquiredLease)
{
var blob = this.container.GetBlobReference(GetBlobName(category, acquiredLease.ResourceKey));
try
{
await blob.RenewLeaseAsync(AccessCondition.GenerateLeaseCondition(acquiredLease.Token));
return(new AcquireLeaseResult(new AcquiredLease(acquiredLease.ResourceKey, acquiredLease.Duration, acquiredLease.Token, DateTime.UtcNow),
ResponseCode.OK, null));
}
catch (StorageException e)
{
ResponseCode statusCode;
//This mapping is based on references : https://docs.microsoft.com/en-us/rest/api/storageservices/blob-service-error-codes
// https://docs.microsoft.com/en-us/rest/api/storageservices/Lease-Blob?redirectedfrom=MSDN
switch (e.RequestInformation.HttpStatusCode)
{
case 404:
case 409:
case 412: statusCode = ResponseCode.InvalidToken; break;
default: statusCode = ResponseCode.TransientFailure; break;
}
return(new AcquireLeaseResult(new AcquiredLease(acquiredLease.ResourceKey), statusCode, e));
}
}
private Task Release(string category, AcquiredLease acquiredLease)
{
var leaseClient = GetBlobClient(category, acquiredLease.ResourceKey).GetBlobLeaseClient(acquiredLease.Token);
return(leaseClient.ReleaseAsync());
}
public AcquireLeaseResult(AcquiredLease acquiredLease, ResponseCode statusCode, Exception failureException)
{
this.AcquiredLease = acquiredLease;
this.StatusCode = statusCode;
this.FailureException = failureException;
}
private Task Release(string category, AcquiredLease acquiredLease)
{
var blob = this.container.GetBlobReference(GetBlobName(category, acquiredLease.ResourceKey));
return(blob.ReleaseLeaseAsync(AccessCondition.GenerateLeaseCondition(acquiredLease.Token)));
}