/// <summary>
/// Fetch the next restore request to be processed. Status = ACCEPTED
/// </summary>
/// <returns>RestoreReqResponse</returns>
public async Task <RestoreReqResponse> GetRestoreRequest()
{
RestoreReqResponse reqRespData = null;
CloudTable restoreReqTable = GetCloudTable();
EventDateDetails dateDetails = new EventDateDetails(DateTime.Now);
var whereCondition = TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal,
$"{dateDetails.year.ToString()}_{dateDetails.WeekNumber.ToString()}");
var statusCondition = TableQuery.GenerateFilterCondition("CurrentStatus", QueryComparisons.Equal,
Constants.Constants.RESTORE_STATUS_ACCEPTED);
string query = TableQuery.CombineFilters(whereCondition, TableOperators.And, statusCondition);
TableQuery <RestoreReqEntity> partitionQuery = new TableQuery <RestoreReqEntity>().Where(query);
partitionQuery.TakeCount = 1; // Return only one record at a time;
TableQuerySegment <RestoreReqEntity> resultSegment =
await restoreReqTable.ExecuteQuerySegmentedAsync(partitionQuery, null);
if ((resultSegment.Results != null) && (resultSegment.Results.Count == 1))
{
foreach (RestoreReqEntity entity in resultSegment.Results)
{
reqRespData =
JsonConvert.DeserializeObject <RestoreReqResponse>(entity.RestoreReqRespDataJSON);
}
}
;
return(reqRespData);
}
/// <summary>
/// Returns all the dates between date range and with the corresponding week number.
/// </summary>
/// <param name="startDate"></param>
/// <param name="EndDate"></param>
/// <returns></returns>
public List <Tuple <int, int, DateTime> > GetDatesForDateRange(DateTime startDate, DateTime EndDate)
{
List <Tuple <int, int, DateTime> > dates = new List <Tuple <int, int, DateTime> >();
Tuple <int, int, DateTime> dateData;
EventDateDetails dateDetails;
while (startDate <= EndDate)
{
dateDetails = new EventDateDetails(startDate);
dateData = new Tuple <int, int, DateTime>(dateDetails.year, dateDetails.WeekNumber, startDate);
dates.Add(dateData);
startDate = startDate.AddDays(1);
}
return(dates);
}
/// <summary>
/// CopyBlobFromSourceToBackup:
/// - Copies blob from source SA container to destination/backup SA container
/// </summary>
/// <returns></returns>
public async Task <DestinationBlobInfo> CopyBlobFromSourceToBackup(IBlobEvent eventData)
{
DestinationBlobInfo destinationBlobInfo = null;
string destinationStorageAccountConnectionString =
Environment.GetEnvironmentVariable("RES_STORAGE_ACCOUNT_CONN");
string sourceStorageAccountConnectionString =
Environment.GetEnvironmentVariable("SRC_STORAGE_ACCOUNT_CONN");
if (eventData is BlobEvent <CreatedEventData> )
{
// Retrieve the storage account from the connection string.
CloudStorageAccount sourceStorageAccount = CloudStorageAccount.Parse(sourceStorageAccountConnectionString);
CloudBlobClient sourceBlobClient = sourceStorageAccount.CreateCloudBlobClient();
// Retrieve the storage account from the connection string.
CloudStorageAccount destinationStorageAccount = CloudStorageAccount.Parse(destinationStorageAccountConnectionString);
CloudBlobClient destinationBlobClient = destinationStorageAccount.CreateCloudBlobClient();
BlobEvent <CreatedEventData> createdEventData = (BlobEvent <CreatedEventData>)eventData;
string url = createdEventData.data.url;
CloudBlockBlob sourceBlockBlob = new CloudBlockBlob(new Uri(url), sourceBlobClient);
bool sourceBlobExists = await sourceBlockBlob.ExistsAsync();
if (sourceBlobExists)
{
long blobSize = sourceBlockBlob.Properties.Length;
EventDateDetails dateDetails = new EventDateDetails(createdEventData.eventTime);
string destinationContaninerName = dateDetails.year.ToString();
string destinationBlobName = $"wk{dateDetails.WeekNumber}/dy{(int)dateDetails.DayOfWeek}/{sourceBlockBlob.Container.Name}/{sourceBlockBlob.Name}";
destinationBlobName += ".";
destinationBlobName += DateTimeUtil.GetString;
CloudBlobContainer destinationContainer = destinationBlobClient.GetContainerReference(destinationContaninerName);
bool result = await destinationContainer.CreateIfNotExistsAsync();
CloudBlockBlob destinationBlob = destinationContainer.GetBlockBlobReference(destinationBlobName);
_logger.LogInformation($"About to sync copy from Container: {sourceBlockBlob.Container.Name}, Blob: {sourceBlockBlob.Name}. Blob size: {sourceBlockBlob.Properties.Length} bytes");
// copyResult = "SYNCCOPY";
string copyResult = await destinationBlob.StartCopyAsync(sourceBlockBlob);
destinationBlobInfo = new DestinationBlobInfo();
destinationBlobInfo.ContainerName = destinationContainer.Name;
destinationBlobInfo.BlobName = destinationBlobName;
destinationBlobInfo.CopyReferenceId = copyResult;
destinationBlobInfo.OrgContainerName = sourceBlockBlob.Container.Name;
destinationBlobInfo.OrgBlobName = sourceBlockBlob.Name;
_logger.LogInformation($"Copy Scheduled. Source Blob Name: {sourceBlockBlob.Name}, Destination Blob Name: {destinationBlobInfo.BlobName}, Copy Id: {copyResult}.");
return(destinationBlobInfo);
}
else
{
_logger.LogInformation($"Not able to locate the block blob in source storage account---Block blob Name: {sourceBlockBlob.Name}");
}
}
else
{
_logger.LogInformation($"Input event data is not of Created Event Type.");
}
return(destinationBlobInfo);
}
/// <summary>
/// CopyBlobFromSourceToBackup:
/// - Copies blob from source SA container to destination/backup SA container
/// </summary>
/// <returns></returns>
public async Task <DestinationBlobInfo> CopyBlobFromSourceToBackup(IBlobEvent eventData)
{
DestinationBlobInfo destinationBlobInfo = null;
string destinationStorageAccountConnectionString =
Environment.GetEnvironmentVariable("RES_STORAGE_ACCOUNT_CONN");
string sourceStorageAccountConnectionString =
Environment.GetEnvironmentVariable("SRC_STORAGE_ACCOUNT_CONN");
int blobTier =
string.IsNullOrEmpty(Environment.GetEnvironmentVariable("TargetBlobTier")) ?
2 :
int.Parse(Environment.GetEnvironmentVariable("TargetBlobTier"));
StandardBlobTier targetBlobTier; // Default tier is set to Cool
switch (blobTier)
{
case 1:
targetBlobTier = StandardBlobTier.Hot;
break;
case 2:
targetBlobTier = StandardBlobTier.Cool;
break;
case 3:
targetBlobTier = StandardBlobTier.Archive;
break;
default:
targetBlobTier = StandardBlobTier.Cool;
break;
}
;
if (eventData is BlobEvent <CreatedEventData> )
{
// Retrieve the storage account from the connection string.
CloudStorageAccount sourceStorageAccount = CloudStorageAccount.Parse(sourceStorageAccountConnectionString);
CloudBlobClient sourceBlobClient = sourceStorageAccount.CreateCloudBlobClient();
// Retrieve the storage account from the connection string.
CloudStorageAccount destinationStorageAccount = CloudStorageAccount.Parse(destinationStorageAccountConnectionString);
CloudBlobClient destinationBlobClient = destinationStorageAccount.CreateCloudBlobClient();
BlobEvent <CreatedEventData> createdEventData = (BlobEvent <CreatedEventData>)eventData;
string url = createdEventData.data.url;
CloudBlockBlob sourceBlockBlob = new CloudBlockBlob(new Uri(url), sourceBlobClient);
bool sourceBlobExists = await sourceBlockBlob.ExistsAsync();
if (sourceBlobExists)
{
long blobSize = sourceBlockBlob.Properties.Length;
EventDateDetails dateDetails = new EventDateDetails(createdEventData.eventTime);
string destinationContaninerName = dateDetails.year.ToString();
string destinationBlobName = $"wk{dateDetails.WeekNumber}/dy{(int)dateDetails.DayOfWeek}/{sourceBlockBlob.Container.Name}/{sourceBlockBlob.Name}";
destinationBlobName += ".";
destinationBlobName += DateTimeUtil.GetString;
CloudBlobContainer destinationContainer = destinationBlobClient.GetContainerReference(destinationContaninerName);
bool result = await destinationContainer.CreateIfNotExistsAsync();
CloudBlockBlob destinationBlob = destinationContainer.GetBlockBlobReference(destinationBlobName);
_logger.LogInformation($"About to sync copy from Container: {sourceBlockBlob.Container.Name}, Blob: {sourceBlockBlob.Name}. Blob size: {sourceBlockBlob.Properties.Length} bytes");
// copyResult = "SYNCCOPY";
string copyResult =
await destinationBlob.StartCopyAsync(
sourceBlockBlob,
targetBlobTier,
null, // Rehydrate priority
null, // Source access condition
null, // Destination access condition
null, // Blob request options
null, // Operation context
(new CancellationTokenSource()).Token);
destinationBlobInfo = new DestinationBlobInfo();
destinationBlobInfo.ContainerName = destinationContainer.Name;
destinationBlobInfo.BlobName = destinationBlobName;
destinationBlobInfo.CopyReferenceId = copyResult;
destinationBlobInfo.OrgContainerName = sourceBlockBlob.Container.Name;
destinationBlobInfo.OrgBlobName = sourceBlockBlob.Name;
_logger.LogInformation($"Copy Scheduled. Source Blob Name: {sourceBlockBlob.Name}, Destination Blob Name: {destinationBlobInfo.BlobName}, Copy Id: {copyResult}.");
return(destinationBlobInfo);
}
else
{
_logger.LogInformation($"Not able to locate the block blob in source storage account---Block blob Name: {sourceBlockBlob.Name}");
}
}
else
{
_logger.LogInformation($"Input event data is not of Created Event Type.");
}
return(destinationBlobInfo);
}
/// <summary>
/// CopyBlobFromSourceToBackup
/// </summary>
/// <returns></returns>
public async Task <DestinationBlobInfo> CopyBlobFromSourceToBackup(IBlobEvent eventData)
{
DestinationBlobInfo destinationBlobInfo = null;
string destinationStorageAccountConnectionString = _config.GetConnectionString("BackupBlobStorage");
string sourceStorageAccountConnectionString = _config.GetConnectionString("SourceBlobStorage");
bool isServerCopy = bool.Parse(_config.GetSection("AppSettings")["IsServerCopy"]);
if (eventData is BlobEvent <CreatedEventData> )
{
// Retrieve the storage account from the connection string.
CloudStorageAccount sourceStorageAccount = CloudStorageAccount.Parse(sourceStorageAccountConnectionString);
CloudBlobClient sourceBlobClient = sourceStorageAccount.CreateCloudBlobClient();
// Retrieve the storage account from the connection string.
CloudStorageAccount destinationStorageAccount = CloudStorageAccount.Parse(destinationStorageAccountConnectionString);
CloudBlobClient destinationBlobClient = destinationStorageAccount.CreateCloudBlobClient();
BlobEvent <CreatedEventData> createdEventData = (BlobEvent <CreatedEventData>)eventData;
string url = createdEventData.data.url;
CloudBlockBlob sourceBlockBlob = new CloudBlockBlob(new Uri(url), sourceBlobClient);
bool sourceBlobExists = await sourceBlockBlob.ExistsAsync();
if (sourceBlobExists)
{
long blobSize = sourceBlockBlob.Properties.Length;
EventDateDetails dateDetails = new EventDateDetails(createdEventData.eventTime);
string destinationContaninerName = dateDetails.year.ToString();
string destinationBlobName = $"wk{dateDetails.WeekNumber}/dy{(int)dateDetails.DayOfWeek}/{sourceBlockBlob.Container.Name}/{sourceBlockBlob.Name}";
CloudBlobContainer destinationContainer = destinationBlobClient.GetContainerReference(destinationContaninerName);
bool result = await destinationContainer.CreateIfNotExistsAsync();
CloudBlockBlob destinationBlob = destinationContainer.GetBlockBlobReference(destinationBlobName);
string copyResult = string.Empty;
if (isServerCopy)
{
string blobToken = GenerateSASBlobToken(sourceBlockBlob);
_logger.LogInformation($"About to server copy {sourceBlockBlob.Name}. Blob size {sourceBlockBlob.Properties.Length} bytes");
copyResult = await destinationBlob.StartCopyAsync(new Uri(sourceBlockBlob.Uri.AbsoluteUri + blobToken));
}
else
{
_logger.LogInformation($"About to sync copy {sourceBlockBlob.Name}. Blob size {sourceBlockBlob.Properties.Length} bytes");
copyResult = "SYNCCOPY";
await TransferManager.CopyAsync(sourceBlockBlob, destinationBlob, false);
}
destinationBlobInfo = new DestinationBlobInfo();
destinationBlobInfo.ContainerName = destinationContainer.Name;
destinationBlobInfo.BlobName = destinationBlobName;
destinationBlobInfo.CopyReferenceId = copyResult;
destinationBlobInfo.OrgContainerName = sourceBlockBlob.Container.Name;
destinationBlobInfo.OrgBlobName = sourceBlockBlob.Name;
return(destinationBlobInfo);
}
else
{
_logger.LogInformation($"Not able to locate the block blob in source storage account---Block blob Name {sourceBlockBlob.Name}");
}
}
else
{
_logger.LogInformation($"Input event data is not of Created Event Type.");
}
return(destinationBlobInfo);
}
