Aberus.StackOverflowQuickLaunch.StackOverflowSearchTask.OnStartSearch C# (CSharp) Method

        protected async override void OnStartSearch()
        {
            //// Get the tokens count in the query
            //uint tokenCount = this.SearchQuery.GetTokens(0, null);
            //// Get the tokens
            //IVsSearchToken[] tokens = new IVsSearchToken[tokenCount];
            //this.SearchQuery.GetTokens(tokenCount, tokens);
            var cancellationSource = new CancellationTokenSource();
            var searchResult = (StackOverflowSearchResult)null;

            var client = new HttpClient(
                new HttpClientHandler
                {
                    AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate
                });
            //2.2/search/excerpts?order=desc&sort=relevance&site=stackoverflow&q=
            using (var response = await client.GetAsync("http://api.stackexchange.com/2.2/search?site=stackoverflow&intitle=" + WebUtility.UrlEncode(SearchQuery.SearchString.Trim()), cancellationSource.Token))
            using (var receiveStream = await response.Content.ReadAsStreamAsync())
            {
                DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(StackOverflowSearchResult));
                searchResult = serializer.ReadObject(receiveStream) as StackOverflowSearchResult;
            }

            // Check if the search was canceled
            if (this.TaskStatus == VSConstants.VsSearchTaskStatus.Stopped)
            {
                if (!cancellationSource.IsCancellationRequested)
                {
                    cancellationSource.Cancel();
                    if (cancellationSource != null)
                        cancellationSource.Dispose();
                }
                // The completion was already notified by the base.OnStopSearch, there is nothing else to do
                return;
            }

            if (searchResult != null && searchResult.Items.Count != 0)
            {
                var results = searchResult.Items.Take(100).ToArray();

                // Since we know how many items we have, we can report progress
                for (int itemIndex = 0; itemIndex < results.Length; itemIndex++)
                {
                    var itemResult = new StackOverflowSearchItemResult(
                        WebUtility.HtmlDecode(results[itemIndex].Title),
                        results[itemIndex].Link,
                        new WinFormsIconUIObject(Resources.StackOverflow),
                        searchProvider);

                    // Create and report new result
                    SearchCallback.ReportResult(this, itemResult);

                    // Keep track of how many results we have found, and the base class will use this number when calling the callback to report completion
                    SearchResults++;

                    // Since we know how many items we have, we can report progress
                    SearchCallback.ReportProgress(this, (uint) (itemIndex + 1), (uint) results.Length);
                }
            }
            else
            {
                // Create and report new result
                SearchCallback.ReportResult(this, 
                    new StackOverflowSearchItemResult("Search Stack Overflow for '" + SearchQuery.SearchString + "'",
                        "http://stackoverflow.com/search?q=" + WebUtility.UrlEncode(SearchQuery.SearchString.Trim()),
                        null,
                        searchProvider));

                // Since we know how many items we have, we can report progress
                SearchCallback.ReportComplete(this, 1);
            }

            // Now call the base class - it will set the task status to complete and will callback to report search complete
            base.OnStartSearch();
        }