private async Task <IEnumerable <Task <SynchronizationReport> > > SynchronizeDestinationAsync(SynchronizationDestination destination, bool forceSyncingAll)
{
ICredentials credentials = null;
if (string.IsNullOrEmpty(destination.Username) == false)
{
credentials = string.IsNullOrEmpty(destination.Domain)
? new NetworkCredential(destination.Username, destination.Password)
: new NetworkCredential(destination.Username, destination.Password, destination.Domain);
}
var synchronizationServerClient = new SynchronizationServerClient(destination.ServerUrl, destination.FileSystem, destination.ApiKey, credentials);
var lastETag = await synchronizationServerClient.GetLastSynchronizationFromAsync(storage.Id).ConfigureAwait(false);
var activeTasks = synchronizationQueue.Active;
var filesNeedConfirmation = GetSyncingConfigurations(destination).Where(sync => activeTasks.All(x => x.FileName != sync.FileName)).ToList();
var confirmations = await ConfirmPushedFiles(filesNeedConfirmation, synchronizationServerClient).ConfigureAwait(false);
var needSyncingAgain = new List <FileHeader>();
foreach (var confirmation in confirmations)
{
if (confirmation.Status == FileStatus.Safe)
{
Log.Debug("Destination server {0} said that file '{1}' is safe", destination, confirmation.FileName);
RemoveSyncingConfiguration(confirmation.FileName, destination.Url);
}
else
{
storage.Batch(accessor =>
{
var fileHeader = accessor.ReadFile(confirmation.FileName);
if (fileHeader != null)
{
needSyncingAgain.Add(fileHeader);
Log.Debug("Destination server {0} said that file '{1}' is {2}.", destination, confirmation.FileName, confirmation.Status);
}
});
}
}
if (synchronizationQueue.NumberOfPendingSynchronizationsFor(destination.Url) < AvailableSynchronizationRequestsTo(destination.Url))
{
await EnqueueMissingUpdatesAsync(synchronizationServerClient, lastETag, needSyncingAgain).ConfigureAwait(false);
}
return(SynchronizePendingFilesAsync(synchronizationServerClient, forceSyncingAll));
}
private async Task <IEnumerable <Task <SynchronizationReport> > > SynchronizeDestinationAsync(SynchronizationDestination destination, bool forceSyncingAll)
{
ICredentials credentials = destination.Credentials;
var destinationSyncClient = new SynchronizationServerClient(destination.ServerUrl, destination.FileSystem, destination.ApiKey, credentials);
bool repeat;
do
{
var lastETag = await destinationSyncClient.GetLastSynchronizationFromAsync(storage.Id).ConfigureAwait(false);
var activeTasks = synchronizationQueue.Active;
var filesNeedConfirmation = GetSyncingConfigurations(destination).Where(sync => activeTasks.All(x => x.FileName != sync.FileName)).ToList();
var confirmations = await ConfirmPushedFiles(filesNeedConfirmation, destinationSyncClient).ConfigureAwait(false);
var needSyncingAgain = new List <FileHeader>();
Debug.Assert(filesNeedConfirmation.Count == confirmations.Length);
for (int i = 0; i < confirmations.Length; i++)
{
var confirmation = confirmations[i];
if (confirmation.Status == FileStatus.Safe)
{
if (Log.IsDebugEnabled)
{
Log.Debug("Destination server {0} said that file '{1}' is safe", destination, confirmation.FileName);
}
RemoveSyncingConfiguration(confirmation.FileName, destination.Url);
}
else
{
storage.Batch(accessor =>
{
var fileHeader = accessor.ReadFile(confirmation.FileName);
if (fileHeader == null)
{
if (Log.IsDebugEnabled)
{
Log.Debug("Destination server {0} said that file '{1}' is {2} but such file no longer exists. Removing related syncing configuration", destination, confirmation.FileName, confirmation.Status);
}
RemoveSyncingConfiguration(confirmation.FileName, destination.Url);
}
else if (EtagUtil.IsGreaterThan(fileHeader.Etag, filesNeedConfirmation[i].FileETag))
{
if (Log.IsDebugEnabled)
{
Log.Debug("Destination server {0} said that file '{1}' is {2} but such file has been changed since we stored the syncing configuration. " +
"Stored etag in configuration is {3} while current file etag is {4}. Removing related syncing configuration", destination, confirmation.FileName, confirmation.Status, fileHeader.Etag, filesNeedConfirmation[i].FileETag);
}
RemoveSyncingConfiguration(confirmation.FileName, destination.Url);
}
else
{
needSyncingAgain.Add(fileHeader);
if (Log.IsDebugEnabled)
{
Log.Debug("Destination server {0} said that file '{1}' is {2}.", destination, confirmation.FileName, confirmation.Status);
}
}
});
}
}
if (synchronizationQueue.NumberOfPendingSynchronizationsFor(destination.Url) < AvailableSynchronizationRequestsTo(destination.Url))
{
repeat = await EnqueueMissingUpdatesAsync(destinationSyncClient, lastETag, needSyncingAgain).ConfigureAwait(false) == false;
}
else
{
repeat = false;
}
}while (repeat);
return(SynchronizePendingFilesAsync(destinationSyncClient, forceSyncingAll));
}