BuildMonitor.BuildEventProcessor.ProcessTaskListItem C# (CSharp) Method

        private void ProcessTaskListItem(IVsTaskItem taskListItem)
        {
            IVsErrorItem errorTaskItem = taskListItem as IVsErrorItem;

            if (errorTaskItem != null)
            {
                uint errorCategory = 255;
                errorTaskItem.GetCategory(out errorCategory);

                // is this task an error from an Islandwood project
                if (errorCategory == (uint)TaskErrorCategory.Error ||
                    errorCategory == (uint)TaskErrorCategory.Warning)
                {
                    string sourceFile = string.Empty;
                    taskListItem.Document(out sourceFile);

                    if (string.IsNullOrEmpty(sourceFile) == false &&
                        (sourceFile.EndsWith(".m") || sourceFile.EndsWith(".mm") || sourceFile.EndsWith(".h")))
                    {

                        Dictionary<string, string> errorDetails = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
                        errorDetails.Add("BuildId", _currentBuildGuid.ToString());

                        Guid errorProjectGuid = _firstIslandwoodProjectGuid;

                        IVsHierarchy errorTaskItemHierarchy = null;
                        if (errorTaskItem.GetHierarchy(out errorTaskItemHierarchy) == 0 &&
                            errorTaskItemHierarchy != null)
                        {
                            _solution.GetGuidOfProject(errorTaskItemHierarchy, out errorProjectGuid);
                        }

                        errorDetails.Add("ProjectId", errorProjectGuid.ToString());

                        string errorCategoryText = errorCategory == 0 ? TaskErrorCategory.Error.ToString() : TaskErrorCategory.Warning.ToString();
                        errorDetails.Add("Category", errorCategoryText);

                        string rawErrorText = string.Empty;
                        taskListItem.get_Text(out rawErrorText);
                        errorDetails.Add("Description", ParseAndScrubErrorMessage(rawErrorText));

                        BuildTelemetryClient.TrackEvent("IslandwoodBuildError", errorDetails, null);
                    }
                }
            }
        }