|
public static Search ( string queryString, IEnumerable |
||
| queryString | string | |
| indexers | IEnumerable |
|
| maxResults | int | |
| return | ||
/// <summary>
/// Executes the search using the currently entered text
/// </summary>
private void LaunchSearch(bool interactive)
{
if (indexes.Count == 0)
{
return;
}
searchStatusLabel.Text = String.Format(Properties.Resources.SearchingForTerm, searchBox.Text);
searchLaunched = true;
searchIdentifier++;
if (!interactive)
{
SearchItem si = new SearchItem();
si.SearchIdentifier = searchIdentifier;
si.SearchText = searchBox.Text;
ThreadPool.QueueUserWorkItem(BackgroundSearch, si);
return;
}
HitCollection hits = Indexer.Search(searchBox.Text, indexes.Values, Indexer.MAX_SEARCH_HITS);
searchStatusLabel.Text = String.Empty;
if (String.IsNullOrEmpty(hits.ErrorMessages))
{
loadingResults = true;
hitsBox.DataSource = hits;
hitsBox.SelectedItem = null;
loadingResults = false;
if (hits.HadMoreHits)
{
searchStatusLabel.Text = String.Format(Properties.Resources.ShowingXTopResults, Indexer.MAX_SEARCH_HITS.ToString());
}
if (hits.Count > 0)
{
hitsBox.SetSelected(0, true);
PageInfo page = hitsBox.SelectedItem as PageInfo;
webBrowser.Navigate(WebServer.Instance.GenerateUrl(page));
}
}
else
{
MessageBox.Show(this, hits.ErrorMessages, Properties.Resources.Error, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
/// <summary>
/// Does the Lucene search in background and returns the results, if any
/// </summary>
/// <param name="state">The state object</param>
private void BackgroundSearch(object state)
{
SearchItem si = (SearchItem)state;
try
{
si.Hits = Indexer.Search(si.SearchText, indexes.Values, Indexer.MAX_SEARCH_HITS);
}
catch (Exception ex)
{
si.Hits = new HitCollection();
si.Hits.ErrorMessages = ex.Message;
}
Invoke(new BackgroundSearchFinishedDelegate(BackgroundSearchFinished), si);
}
/// <summary>
/// Gets called whenever the browser control requests a URL from the web server
/// </summary>
/// <param name="sender">Web server instance</param>
/// <param name="e">Request parameters</param>
private void Web_UrlRequested(object sender, UrlRequestedEventArgs e)
{
string response = "Not found";
string redirect = String.Empty;
if (!String.IsNullOrEmpty(e.TeXEquation))
{
return;
}
string topic = e.TopicName.Replace('_', ' ').Trim();
if (topic.Contains("#"))
{
topic = topic.Substring(0, topic.IndexOf('#')).Trim();
}
PageInfo page = hitsBox.SelectedItem as PageInfo;
if (page != null &&
topic.Equals(page.Name, StringComparison.InvariantCultureIgnoreCase) &&
e.IndexName.Equals(page.Indexer.File, StringComparison.InvariantCultureIgnoreCase) &&
!IsCircularRedirect(page))
{
response = page.GetFormattedContent();
redirect = page.RedirectToTopic;
}
else
{
List <Indexer> searchArea = new List <Indexer>();
// This is an internal link
if (String.IsNullOrEmpty(e.IndexName))
{
if (page != null)
{
searchArea.Add(page.Indexer);
}
else
{
foreach (Indexer ixr in indexes.Values)
{
searchArea.Add(ixr);
}
}
}
else
{
foreach (Indexer ixr in indexes.Values)
{
if (ixr.File.Equals(e.IndexName, StringComparison.InvariantCultureIgnoreCase))
{
searchArea.Add(ixr);
break;
}
}
}
if (searchArea.Count > 0)
{
HitCollection hits = Indexer.Search(topic, searchArea, 100);
bool exactTopicLocated = false;
foreach (PageInfo pi in hits)
{
if (pi.Name.Trim().Equals(topic, StringComparison.InvariantCultureIgnoreCase) &&
!IsCircularRedirect(pi))
{
response = pi.GetFormattedContent();
redirect = pi.RedirectToTopic;
exactTopicLocated = true;
break;
}
}
if (hits.Count > 0 &&
!exactTopicLocated)
{
foreach (PageInfo pi in hits)
{
if (String.IsNullOrEmpty(pi.RedirectToTopic))
{
response = pi.GetFormattedContent();
redirect = pi.RedirectToTopic;
exactTopicLocated = true;
break;
}
}
if (!exactTopicLocated)
{
foreach (PageInfo pi in hits)
{
if (!IsCircularRedirect(pi))
{
response = pi.GetFormattedContent();
redirect = pi.RedirectToTopic;
break;
}
}
}
}
}
}
e.Redirect = !String.IsNullOrEmpty(redirect);
e.RedirectTarget = redirect;
e.Response = Encoding.UTF8.GetBytes(response);
e.MimeType = "text/html";
if (String.IsNullOrEmpty(redirect))
{
autoRedirects.Clear();
}
else
{
autoRedirects.Push(redirect);
}
}