private void StartAsyncTask(Object workItemState)
{
HttpRequest request = _context.Request;
byte[] buffer = new byte[request.ContentLength];
string fullFileName = Uri.UnescapeDataString(request.Headers["X-File-Name"]);
string fileName = Path.GetFileNameWithoutExtension(fullFileName);
string fileExt = Path.GetExtension(fullFileName);
string documentIdStr = request["documentid"];
int fileId = 0;
Stream inputStream;
if (String.IsNullOrEmpty(fullFileName) && request.Files.Count <= 0)
{
_context.Response.Write("{success:false}");
}
else
{
try {
if (fullFileName == null)
{
inputStream = request.Files[0].InputStream;
fullFileName = Path.GetFileName(request.Files[0].FileName);
fileName = Path.GetFileNameWithoutExtension(fullFileName);
fileExt = Path.GetExtension(fullFileName);
}
else
{
inputStream = request.InputStream;
}
using (BinaryReader br = new BinaryReader(inputStream))
br.Read(buffer, 0, buffer.Length);
long hashCode = FileVFS.ComputeHash(buffer);
SqlConnection connection = new SqlConnection(Config.ConnectionString);
try {
connection.Open();
SqlTransaction trans = null;
try {
trans = connection.BeginTransaction();
bool existSameName = FileVFS.Exists(trans, fullFileName, 0);
if (existSameName)
{
fileId = FileVFS.GetFileID(trans, fullFileName, hashCode, 0);
}
if (fileId <= 0)
{
if (existSameName)
{
fullFileName = fileName + "_" + hashCode + fileExt;
}
existSameName = FileVFS.Exists(trans, fullFileName, 0);
if (existSameName)
{
fileId = FileVFS.GetFileID(trans, fullFileName, hashCode, 0);
}
}
if (fileId <= 0)
{
FileVFS fileVFS = new FileVFS(Config.ConnectionString, fullFileName, 0, buffer);
fileVFS.Create(trans);
fileId = fileVFS.ID;
}
if (fileId > 0 && !String.IsNullOrWhiteSpace(documentIdStr))
{
int documentID;
if (int.TryParse(documentIdStr, out documentID) && documentID > 0)
{
DocumentFile df = new DocumentFile(Worker);
df.FileID = fileId;
df.DocumentID = documentID;
df.Insert(trans);
}
}
trans.Commit();
} catch (Exception) {
if (trans != null)
{
trans.Rollback();
}
throw;
}
} finally {
connection.Close();
}
_context.Response.Write(String.Format("{{ success: true, fileID: {0}, fileName: '{1}'}}", fileId, fullFileName));
_context.Response.Flush();
} catch (Exception e) {
_context.Response.Write("{ success: false, error:\"" + e.Message + "\" }");
}
}
_completed = true;
_callback(this);
}