/// <summary>
/// Override to start the search
/// </summary>
protected async override void OnStartSearch()
{
var sortQuery = "relevance";
int pageSize = 40;
bool alwaysShowLink = false;
var options = StackOverflowQuickLaunchPackage.Instance.OptionPage;
if (options != null)
{
sortQuery = options.Sort.ToString().ToLowerInvariant();
pageSize = options.ShowResults;
alwaysShowLink = options.AlwayShowLink;
}
//// Get the tokens count in the query
//uint tokenCount = SearchQuery.GetTokens(0, null);
//// Get the tokens
//IVsSearchToken[] tokens = new IVsSearchToken[tokenCount];
//SearchQuery.GetTokens(tokenCount, tokens);
var cancellationSource = new CancellationTokenSource();
var searchResult = (StackOverflowSearchResult)null;
try
{
using (var client = new HttpClient(
new HttpClientHandler
{
AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate
}
))
using (var response = await client.GetAsync("https://api.stackexchange.com/2.2/search/excerpts?order=desc&pagesize=" + pageSize + "&sort=" + sortQuery + "&site=stackoverflow&q=" + 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;
}
}
catch (Exception ex)
{
this.ErrorCode = ex.HResult;
this.SetTaskStatus(VSConstants.VsSearchTaskStatus.Error);
this.SearchCallback.ReportComplete(this, 0);
return;
}
// 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.ErrorId.HasValue)
{
this.SetTaskStatus(VSConstants.VsSearchTaskStatus.Error);
this.SearchCallback.ReportComplete(this, this.SearchResults);
return;
}
bool anyResults = false;
if (searchResult != null && searchResult.Items.Length != 0)
{
anyResults = true;
var results = searchResult.Items.Take(pageSize).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(
(results[itemIndex].ItemType == ItemType.Question ? "Q: " : "A: ") + WebUtility.HtmlDecode(results[itemIndex].Title),
FormatExcerpt(WebUtility.HtmlDecode(results[itemIndex].Excerpt)).Trim(),
"https://stackoverflow.com/questions/" + results[itemIndex].QuestionId,
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);
}
}
if (!anyResults || alwaysShowLink)
{
// Create and report new result
SearchCallback.ReportResult(this,
new StackOverflowSearchItemResult($"Search Online on Stack Overflow for '{SearchQuery.SearchString}'",
string.Empty,
"https://stackoverflow.com/search?q=" + WebUtility.UrlEncode(SearchQuery.SearchString.Trim()),
null,
searchProvider));
// Only one result
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();
}
/// <summary>
/// Override to start the search
/// </summary>
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();
}