/// <summary>
/// Marks orphaned file records (the ones that do not have a referencing binary record anymore) as Deleted.
/// </summary>
public void CleanupFilesSetDeleteFlag()
{
var isLocalTransaction = false;
if (!TransactionScope.IsActive)
{
TransactionScope.Begin();
isLocalTransaction = true;
}
try
{
using (var proc = new SqlProcedure {
CommandText = CleanupFileSetIsdeletedScript, CommandType = CommandType.Text
})
{
proc.CommandType = CommandType.Text;
proc.ExecuteNonQuery();
}
if (isLocalTransaction && TransactionScope.IsActive)
{
TransactionScope.Commit();
}
}
catch (Exception ex)
{
if (isLocalTransaction && TransactionScope.IsActive)
{
TransactionScope.Rollback();
}
throw new DataException("Error during setting deleted flag on files.", ex);
}
}
/// <summary>
/// Finalizes a chunked save operation.
/// </summary>
/// <param name="versionId">Content version id.</param>
/// <param name="propertyTypeId">Binary property type id.</param>
/// <param name="fileId">File identifier.</param>
/// <param name="fullSize">Full size (stream length) of the binary value.</param>
/// <param name="source">Binary data containing metadata (e.g. content type).</param>
public void CommitChunk(int versionId, int propertyTypeId, int fileId, long fullSize, BinaryDataValue source = null)
{
// start a new transaction here if needed
var isLocalTransaction = !TransactionScope.IsActive;
if (isLocalTransaction)
{
TransactionScope.Begin();
}
try
{
// commit the process: set the final full size and checksum
using (var cmd = new SqlProcedure {
CommandText = CommitChunkScript, CommandType = CommandType.Text
})
{
cmd.Parameters.Add("@FileId", SqlDbType.Int).Value = fileId;
cmd.Parameters.Add("@VersionId", SqlDbType.Int).Value = versionId;
cmd.Parameters.Add("@PropertyTypeId", SqlDbType.Int).Value = propertyTypeId;
cmd.Parameters.Add("@Size", SqlDbType.BigInt).Value = fullSize;
cmd.Parameters.Add("@Checksum", SqlDbType.VarChar, 200).Value = DBNull.Value;
cmd.Parameters.Add("@ContentType", SqlDbType.NVarChar, 50).Value = source != null ? source.ContentType : string.Empty;
cmd.Parameters.Add("@FileNameWithoutExtension", SqlDbType.NVarChar, 450).Value = source != null
? source.FileName.FileNameWithoutExtension == null
? DBNull.Value
: (object)source.FileName.FileNameWithoutExtension
: DBNull.Value;
cmd.Parameters.Add("@Extension", SqlDbType.NVarChar, 50).Value = source != null?ValidateExtension(source.FileName.Extension) : string.Empty;
cmd.ExecuteNonQuery();
}
}
catch (Exception ex)
{
// rollback the transaction if it was opened locally
if (isLocalTransaction && TransactionScope.IsActive)
{
TransactionScope.Rollback();
}
throw new DataException("Error during committing binary chunk to file stream.", ex);
}
finally
{
// commit the transaction if it was opened locally
if (isLocalTransaction && TransactionScope.IsActive)
{
TransactionScope.Commit();
}
}
}
/// <summary>
/// Starts a chunked save operation on an existing content. It does not write any binary data
/// to the storage, it only makes prerequisite operations - e.g. allocates a new slot in the storage.
/// </summary>
/// <param name="blobProvider">Blob storage provider.</param>
/// <param name="versionId">Content version id.</param>
/// <param name="propertyTypeId">Binary property type id.</param>
/// <param name="fullSize">Full size (stream length) of the binary value.</param>
/// <returns>A token containing all the information (db record ids) that identify a single entry in the blob storage.</returns>
public string StartChunk(IBlobProvider blobProvider, int versionId, int propertyTypeId, long fullSize)
{
var isLocalTransaction = !TransactionScope.IsActive;
if (isLocalTransaction)
{
TransactionScope.Begin();
}
var ctx = new BlobStorageContext(blobProvider)
{
VersionId = versionId, PropertyTypeId = propertyTypeId, FileId = 0, Length = fullSize
};
string blobProviderName = null;
string blobProviderData = null;
bool useSqlFileStream;
if (IsBuiltInOrSqlFileStreamProvider(blobProvider))
{
useSqlFileStream = SqlFileStreamBlobProvider.UseFileStream(blobProvider, fullSize);
}
else
{
useSqlFileStream = false;
blobProvider.Allocate(ctx);
blobProviderName = blobProvider.GetType().FullName;
blobProviderData = BlobStorageContext.SerializeBlobProviderData(ctx.BlobProviderData);
}
try
{
using (var cmd = new SqlProcedure {
CommandText = InsertStagingBinaryScript, CommandType = CommandType.Text
})
{
cmd.Parameters.Add("@VersionId", SqlDbType.Int).Value = versionId;
cmd.Parameters.Add("@PropertyTypeId", SqlDbType.Int).Value = propertyTypeId;
cmd.Parameters.Add("@Size", SqlDbType.BigInt).Value = fullSize;
cmd.Parameters.Add("@UseSqlFileStream", SqlDbType.TinyInt).Value = useSqlFileStream ? 2 : 0;
cmd.Parameters.Add("@BlobProvider", SqlDbType.NVarChar, 450).Value = blobProviderName != null ? (object)blobProviderName : DBNull.Value;
cmd.Parameters.Add("@BlobProviderData", SqlDbType.NVarChar, int.MaxValue).Value = blobProviderData != null ? (object)blobProviderData : DBNull.Value;
int binaryPropertyId;
int fileId;
using (var reader = cmd.ExecuteReader())
{
if (reader.Read())
{
binaryPropertyId = reader.GetSafeInt32(0);
fileId = reader.GetSafeInt32(1);
}
else
{
throw new DataException("File row could not be inserted.");
}
}
ctx.FileId = fileId;
return(new ChunkToken
{
VersionId = versionId,
PropertyTypeId = propertyTypeId,
BinaryPropertyId = binaryPropertyId,
FileId = fileId
}.GetToken());
}
}
catch (Exception ex)
{
if (isLocalTransaction && TransactionScope.IsActive)
{
TransactionScope.Rollback();
}
throw new DataException("Error during saving binary chunk to SQL Server.", ex);
}
finally
{
if (isLocalTransaction && TransactionScope.IsActive)
{
TransactionScope.Commit();
}
}
}
