Esempio n. 1
0
        /// <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;
            }
        }
Esempio n. 2
0
        /// <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;
            }
        }