private void DoDelete(Microsoft.WindowsAzure.Storage.Blob.DeleteSnapshotsOption deleteSnapshotsOption = DeleteSnapshotsOption.None, Microsoft.WindowsAzure.Storage.AccessCondition accessCondition = null, Microsoft.WindowsAzure.Storage.Blob.BlobRequestOptions options = null, Microsoft.WindowsAzure.Storage.OperationContext operationContext = null)
{
bool done = false;
while (!done)
{
using (PrimaryCloudBlobLease lease = new PrimaryCloudBlobLease(this.Name, configuration, true))
{
if (lease.HasLease)
{
Dictionary <ICloudBlob, IAsyncResult> results = new Dictionary <ICloudBlob, IAsyncResult>();
foreach (string serverName in configuration.PrimaryServers)
{
watch.Start();
ICloudBlob blob = ClientRegistry.GetCloudBlob(serverName, configuration.Name, Name);
results[blob] = blob.BeginDelete(deleteSnapshotsOption, lease.getAccessConditionWithLeaseId(accessCondition), options, operationContext, null, null);
ServerState ss = slaEngine.Monitor.GetServerState(serverName);
ss.AddRtt(watch.ElapsedMilliseconds);
slaEngine.Session.RecordObjectWritten(Name, Timestamp(blob), ss);
}
foreach (ICloudBlob blob in results.Keys)
{
blob.EndDelete(results[blob]);
}
done = true;
}
}
}
}
private void MultiWriteUsingBlobLease(WriteOp op)
{
// TODO: recover from failed clients that may leave a write partially completed
// TODO: remove use of leases and replace with ETags
// throw new Exception("Write to multiple primaries not yet implemented.");
try
{
bool done = false;
while (!done)
{
// grab lease on blob to guard against concurrent writers
using (PrimaryCloudBlobLease lease = new PrimaryCloudBlobLease(blobName, configuration, true))
{
if (lease.HasLease)
{
// TODO: fix code for writing to multiple primaries (and remove it from here)
foreach (string server in configuration.PrimaryServers)
{
watch.Start();
ICloudBlob blob = ClientRegistry.GetCloudBlob(server, configuration.Name, blobName, false);
op(blob);
watch.Stop();
ServerState ss = slaEngine.Monitor.GetServerState(server);
ss.AddRtt(watch.ElapsedMilliseconds);
slaEngine.Session.RecordObjectWritten(blobName, Timestamp(blob), ss);
}
done = true;
}
}
}
}
catch (StorageException se)
{
throw se;
}
catch (Exception ex)
{
throw ex;
}
}
private void DoUploadFromStream(System.IO.Stream source, Microsoft.WindowsAzure.Storage.AccessCondition accessCondition = null, Microsoft.WindowsAzure.Storage.Blob.BlobRequestOptions options = null, Microsoft.WindowsAzure.Storage.OperationContext operationContext = null)
{
try
{
bool done = false;
while (!done)
{
using (PrimaryCloudBlobLease lease = new PrimaryCloudBlobLease(Name, configuration, true))
{
if (lease.HasLease)
{
foreach (string server in configuration.PrimaryServers)
{
watch.Start();
ICloudBlob blob = ClientRegistry.GetCloudBlob(server, configuration.Name, Name, false);
source.Position = 0;
blob.UploadFromStream(source, lease.getAccessConditionWithLeaseId(accessCondition), options, operationContext);
watch.Stop();
ServerState ss = slaEngine.Monitor.GetServerState(server);
ss.AddRtt(watch.ElapsedMilliseconds);
slaEngine.Session.RecordObjectWritten(Name, Timestamp(blob), ss);
}
done = true;
}
}
}
}
catch (StorageException se)
{
throw se;
}
catch (Exception ex)
{
throw ex;
}
}
