private void ValidateTempFile(string filePath, string intendedPurpose)
{
FileInfo info = new FileInfo(filePath);
if (info.Length == 0)
{
throw new RetryableException("Temp file for '" + intendedPurpose + "' was written with 0 bytes");
}
else
{
using (Stream fs = info.OpenRead())
{
byte[] buffer = new byte[10];
// This will always read at least one non-zero byte
int bytesRead = fs.Read(buffer, 0, buffer.Length);
if (buffer.All(b => b == 0))
{
RetryableException ex = new RetryableException(
"Temp file for '" + intendedPurpose + "' was written with " + bytesRead + " null bytes");
EventMetadata eventInfo = new EventMetadata();
eventInfo.Add("ErrorMessage", "Validation of temporary downloaded file failed");
eventInfo.Add("file", filePath);
eventInfo.Add("intendedPurpose", intendedPurpose);
eventInfo.Add("Exception", ex.ToString());
this.Tracer.RelatedEvent(EventLevel.Warning, "Warning", eventInfo);
throw ex;
}
}
}
}
private void ValidateTempFile(string tempFilePath, string finalFilePath)
{
using (Stream fs = this.fileSystem.OpenFileStream(tempFilePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, callFlushFileBuffers: false))
{
if (fs.Length == 0)
{
throw new RetryableException($"Temp file '{tempFilePath}' for '{finalFilePath}' was written with 0 bytes");
}
else
{
byte[] buffer = new byte[10];
// Temp files should always have at least one non-zero byte
int bytesRead = fs.Read(buffer, 0, buffer.Length);
if (buffer.All(b => b == 0))
{
RetryableException ex = new RetryableException(
$"Temp file '{tempFilePath}' for '{finalFilePath}' was written with {bytesRead} null bytes");
EventMetadata eventInfo = CreateEventMetadata(ex);
eventInfo.Add("file", tempFilePath);
eventInfo.Add("finalFilePath", finalFilePath);
this.Tracer.RelatedWarning(eventInfo, $"{nameof(this.ValidateTempFile)}: Temp file invalid");
throw ex;
}
}
}
}
private void ValidateTempFile(string filePath, string intendedPurpose)
{
using (Stream fs = this.fileSystem.OpenFileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.None))
{
if (fs.Length == 0)
{
throw new RetryableException("Temp file for '" + intendedPurpose + "' was written with 0 bytes");
}
else
{
byte[] buffer = new byte[10];
// Temp files should always have at least one non-zero byte
int bytesRead = fs.Read(buffer, 0, buffer.Length);
if (buffer.All(b => b == 0))
{
RetryableException ex = new RetryableException(
"Temp file for '" + intendedPurpose + "' was written with " + bytesRead + " null bytes");
EventMetadata eventInfo = new EventMetadata();
eventInfo.Add("file", filePath);
eventInfo.Add("intendedPurpose", intendedPurpose);
eventInfo.Add("Exception", ex.ToString());
this.Tracer.RelatedWarning(eventInfo, "Validation of temporary downloaded file failed");
throw ex;
}
}
}
}
