/// <summary>
/// Method that invokes the search engine to get resuts
/// </summary>
SortedList GetSearchResults(SearchEngine se)
{
if (!string.IsNullOrEmpty(Request.QueryString["semantics"]) && (Request.QueryString["semantics"].Equals("true", StringComparison.InvariantCultureIgnoreCase)))
{
SInfo = new EnableSemantics();
string newss = SInfo.GetSemanticSearchString(Request.QueryString[Preferences.QuerystringParameterName].ToString().Trim(' '));
SortedList res = new SortedList();
SortedList temp;
IList tem2,tem1;
int val;
int i=1;
foreach(string syn in newss.Split(" ".ToCharArray() , StringSplitOptions.RemoveEmptyEntries))
{
temp = se.GetResults(syn, _Catalog);
tem1 = temp.GetKeyList();
tem2 = temp.GetValueList();
for(int j=0;j<temp.Count;j++)
{
val = (int)tem1[j];
val*=i;
res.Add(val,tem2[j]);
}
i++;
if(i>5)
break;
}
return res;
}
else
{
SortedList res = se.GetResults(this.SearchQuery, _Catalog);
return res;
}
}
protected void Page_Load()
{
bool getCatalog = false;
try
{ // see if there is a catalog object in the cache
_Catalog = (Catalog)Cache[Preferences.CatalogCacheKey];
_WordCount = _Catalog.Length; // if so, get the _WordCount
}
catch (Exception ex)
{
// If not, we'll need to load_from_file or build the catalog again.
Logger.PerformanceLog(this, "Catalog object unavailable : Loadind from file!" + ex.ToString());
_Catalog = null; // in case
}
if (null == _Catalog)
getCatalog = true;
else if (_Catalog.Length == 0)
getCatalog = true;
if (getCatalog)
{
// No catalog 'in memory', so let's look for one
// First, for a serialized version on disk
_Catalog = Catalog.Load(); // returns null if not found
// Still no Catalog, so we have to start building a new one
if (null == _Catalog)
{
Logger.PerformanceLog(this, "Catalog object unavailable & serialized file missing : Building new Catalog!");
Response.Redirect("Crawling.aspx", true);
}
else
{ // Yep, there was a serialized catalog file
// Don't forget to add to cache for next time (the Spider does this too)
Cache[Preferences.CatalogCacheKey] = _Catalog;
_WordCount = _Catalog.Length; // if so, get the _WordCount
Logger.PerformanceLog(this, "Deserialized catalog and put in Cache");
}
}
ucSearchPanelHeader.WordCount = _WordCount;
ucSearchPanelFooter.WordCount = _WordCount;
if (this.SearchQuery == "")
{
ucSearchPanelFooter.Visible = false;
ucSearchPanelFooter.IsFooter = true;
ucSearchPanelHeader.IsSearchResultsPage = false;
}
else
{
SearchEngine se = new SearchEngine();
SortedList output = GetSearchResults(se); // which'll do se.GetResults(this.SearchQuery, _Catalog);
_NumberOfMatches = output.Count.ToString();
if (output.Count > 0)
{
_PagedResults.DataSource = output.GetValueList();
_PagedResults.AllowPaging = true;
_PagedResults.PageSize = MaxResultsPerPage; //;Preferences.ResultsPerPage; //10;
_PagedResults.CurrentPageIndex = Request.QueryString["page"] == null ? 0 : Convert.ToInt32(Request.QueryString["page"]) - 1;
_Matches = se.SearchQueryMatchHtml;
_DisplayTime = se.DisplayTime;
SearchResults.DataSource = _PagedResults;
SearchResults.DataBind();
}
else
{
lblNoSearchResults.Visible = true;
}
// Set the display info in the top & bottom user controls
ucSearchPanelHeader.Word = ucSearchPanelFooter.Word = SearchQuery;
ucSearchPanelFooter.Visible = true;
ucSearchPanelFooter.IsFooter = true;
ucSearchPanelHeader.IsSearchResultsPage = true;
}
if (!string.IsNullOrEmpty(Request.QueryString["semantics"]) && (Request.QueryString["semantics"].Equals("true",StringComparison.InvariantCultureIgnoreCase)))
{
SemanticsPanel.Visible = true;
SInformation.Text = SInfo.SemanticsHtml;
}
}
