/// <exception cref="Org.Apache.Hadoop.Hdfs.Server.Namenode.SaveNamespaceCancelledException
/// "/>
public virtual void CheckCancelled()
{
if (canceller.IsCancelled())
{
throw new SaveNamespaceCancelledException(canceller.GetCancellationReason());
}
}
/// <exception cref="System.IO.IOException"/>
private static void CopyFileToStream(OutputStream @out, FilePath localfile, FileInputStream
infile, DataTransferThrottler throttler, Canceler canceler)
{
byte[] buf = new byte[HdfsConstants.IoFileBufferSize];
try
{
CheckpointFaultInjector.GetInstance().AboutToSendFile(localfile);
if (CheckpointFaultInjector.GetInstance().ShouldSendShortFile(localfile))
{
// Test sending image shorter than localfile
long len = localfile.Length();
buf = new byte[(int)Math.Min(len / 2, HdfsConstants.IoFileBufferSize)];
// This will read at most half of the image
// and the rest of the image will be sent over the wire
infile.Read(buf);
}
int num = 1;
while (num > 0)
{
if (canceler != null && canceler.IsCancelled())
{
throw new SaveNamespaceCancelledException(canceler.GetCancellationReason());
}
num = infile.Read(buf);
if (num <= 0)
{
break;
}
if (CheckpointFaultInjector.GetInstance().ShouldCorruptAByte(localfile))
{
// Simulate a corrupted byte on the wire
Log.Warn("SIMULATING A CORRUPT BYTE IN IMAGE TRANSFER!");
buf[0]++;
}
@out.Write(buf, 0, num);
if (throttler != null)
{
throttler.Throttle(num, canceler);
}
}
}
catch (EofException)
{
Log.Info("Connection closed by client");
@out = null;
}
finally
{
// so we don't close in the finally
if (@out != null)
{
@out.Close();
}
}
}