/// <summary>
/// Perform actual write of binary content to file
/// </summary>
/// <param name="binary">The binary to store</param>
/// <param name="physicalPath">String the file path to write to</param>
/// <param name="dimensions">Dimensions of file</param>
/// <returns>True is binary was written to disk, false otherwise</returns>
private static void WriteBinaryToFile(byte[] binary, string physicalPath, Dimensions dimensions, out MemoryStream memoryStream)
{
memoryStream = null;
if (binary == null)
{
return;
}
byte[] buffer = binary;
using (new Tracer(binary, physicalPath, dimensions))
{
try
{
if (!File.Exists(physicalPath))
{
FileInfo fileInfo = new FileInfo(physicalPath);
if (fileInfo.Directory != null && !fileInfo.Directory.Exists)
{
fileInfo.Directory.Create();
}
}
if (dimensions != null && (dimensions.Width > 0 || dimensions.Height > 0))
{
ImageFormat imgFormat = GetImageFormat(physicalPath);
if (imgFormat != null)
{
buffer = ResizeImage(buffer, dimensions, imgFormat);
}
}
lock (NamedLocker.GetLock(physicalPath))
{
using (FileStream fileStream = new FileStream(physicalPath, FileMode.Create,
FileAccess.ReadWrite, FileShare.ReadWrite))
{
fileStream.Write(buffer, 0, buffer.Length);
}
}
NamedLocker.RemoveLock(physicalPath);
}
catch (IOException)
{
// file possibly accessed by a different thread in a different process, locking failed
Log.Warn("Cannot write to {0}. This can happen sporadically, let the next thread handle this.", physicalPath);
Thread.Sleep(1000);
memoryStream = new MemoryStream(buffer);
}
}
}
private static void CleanupLocalFile(string physicalPath)
{
using (new Tracer(physicalPath))
{
try
{
// file got unpublished
File.Delete(physicalPath);
NamedLocker.RemoveLock(physicalPath);
}
catch (IOException)
{
// file probabaly accessed by a different thread in a different process
Log.Warn("Cannot delete '{0}'. This can happen sporadically, let the next thread handle this.", physicalPath);
}
}
}