/// <summary>
/// Loads Natvis files from file.
/// </summary>
/// <param name="filePath">File path.</param>
/// <param name="typeVisualizers">Type visualizers to initialize.</param>
public void LoadFile(string filePath,
ICollection <NatvisVisualizerScanner.FileInfo> typeVisualizers)
{
try
{
if (!_fileSystem.File.Exists(filePath))
{
TraceWriteLine(NatvisLoggingLevel.ERROR,
"Unable to load Natvis file because it doesn't exist." +
$" '{filePath}'");
return;
}
TraceWriteLine(NatvisLoggingLevel.VERBOSE, $"Loading Natvis file '{filePath}'.");
var sw = new Stopwatch();
sw.Start();
using (Stream stream =
_fileSystem.FileStream.Create(filePath, FileMode.Open, FileAccess.Read))
{
LoadFromStream(stream, filePath, typeVisualizers);
}
NatvisValidator validator = _validatorFactory.Create();
validator.Validate(filePath);
sw.Stop();
TraceWriteLine(NatvisLoggingLevel.VERBOSE,
$"Loaded Natvis file '{filePath}' in {sw.Elapsed}.");
}
catch (InvalidOperationException ex)
{
// Handles invalid XML errors.
// don't allow natvis failures to stop debugging
TraceWriteLine(NatvisLoggingLevel.ERROR,
$"Failed to load Natvis file '{filePath}'." +
$" Reason: {ex.Message}");
}
catch (Exception ex)
{
// TODO: Ensure 'unhandled' exceptions are logged at a higher level, such
// as a global error handler.
TraceWriteLine(NatvisLoggingLevel.ERROR,
$"Failed to load Natvis file '{filePath}'. Reason: {ex.Message}" +
$"{Environment.NewLine}Stacktrace:{ex.StackTrace}");
throw;
}
}
/// <summary>
/// Loads Natvis files from string. This method is used in tests.
/// </summary>
/// <param name="natvisText">String with Natvis specification.</param>
/// <param name="typeVisualizers">Type visualizers to initialize.</param>
public void LoadFromString(string natvisText,
ICollection <NatvisVisualizerScanner.FileInfo> typeVisualizers)
{
try
{
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(natvisText)))
{
LoadFromStream(stream, "<From String>", typeVisualizers);
}
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(natvisText)))
{
NatvisValidator validator = _validatorFactory.Create();
validator.Validate(stream);
}
}
catch (InvalidOperationException ex)
{
// Handles invalid XML errors.
// Don't allow natvis failures to stop debugging.
var reason = ex.InnerException != null
? $"{ex.Message}: {ex.InnerException.Message}"
: $"{ex.Message}";
TraceWriteLine(NatvisLoggingLevel.ERROR,
$"Failed to load Natvis text. Reason: {reason}" +
$"{Environment.NewLine}Stacktrace:{ex.StackTrace}");
}
catch (Exception ex)
{
// TODO: Ensure 'unhandled' exceptions are logged at a higher level, such
// as a global error handler.
_logger.Error(
$"Failed to load Natvis text. Reason: {ex.Message}" +
$"{Environment.NewLine}Text:{Environment.NewLine}{natvisText}" +
$"{Environment.NewLine}Stacktrace:{Environment.NewLine}{ex.StackTrace}");
throw;
}
}
