public string GetPassageDetails(long pid, string passage)
{
string details = "<html>";
CollectionPassage cp = collectionProvider.GetPassageDetails(pid);
details += "<body";
details += "<title>" + cp.GetTitle() + "</br></title>";
details += "Passage ID : " + cp.passage_ID.ToString() + "</br>";
details += "is_selected : " + cp.is_selected.ToString() + "</br>";
details += "URL : " + cp.url + "</br>";
details += "Query ID : " + cp.query_ID.ToString() + "</br>";
details += passage + "</br>";
details += "</body";
details += "</html>";
return(details);
}
/// <summary>
/// Searches the index for the querytext and displays a ranked list of results to the screen
/// </summary>
/// <param name="querytext">The text to search the index</param>
private string SearchAndDisplayResults(string querytext, long qid, List <long> relevantList)
{
System.Console.WriteLine("Searching for " + querytext);
querytext = querytext.ToLower();
Query query = parser.Parse(querytext);
System.Console.WriteLine($"Searching for { query.ToString()}");
TopDocs results = searcher.Search(query, MAX_QUERY);
// create highlighter - using strong tag to highlight in this case (change as needed)
//IFormatter formatter = new SimpleHTMLFormatter("<strong>", "</strong>");
IFormatter formatter = new SimpleHTMLFormatter("<span style=\"font-weight:bold;background-color:yellow;\">", "</span>");
// excerpt set to 200 characters in length
var fragmenter = new SimpleFragmenter(3000);
var scorer = new QueryScorer(query);
var highlighter = new Highlighter(formatter, scorer)
{
TextFragmenter = fragmenter
};
long rank = 0;
float topscore = 0f;
long foundrelevants = 0;
List <TrecItem> logItems = new List <TrecItem>();
SearchedListViewModel.DeleteAll();
foreach (ScoreDoc scoreDoc in results.ScoreDocs)
{
if (rank == 0)
{
topscore = scoreDoc.Score;
}
rank++;
Lucene.Net.Documents.Document doc = searcher.Doc(scoreDoc.Doc);
long id = Convert.ToInt64(doc.Get(PID_FN).ToString());
CollectionPassage ps = collectionProvider.Passages[id];
// Logging Trec
logItems.Add(new TrecItem(0, id, rank, scoreDoc.Score));
// get highlighted fragment
TokenStream stream = analyzer.TokenStream("", new StringReader(ps.passage_text));
string highlighted = highlighter.GetBestFragment(stream, ps.passage_text);
//string url2 = doc.Get(TEXT_FN).ToString();
//Console.WriteLine("Rank " + rank + " text " + myFieldValue);
if (highlighted == null)
{
highlighted = ps.passage_text;
}
if (relevantList.Contains(id))
{
foundrelevants++;
}
SearchedListViewModel.Add(scoreDoc.Score / topscore, id, ps.GetTitle(), ps.url, highlighted, relevantList.Contains(id));
//Console.WriteLine("==>" + highlighted);
}
StatusBarViewModel.Instance.NumRelevants = "Num Relevants : " + foundrelevants.ToString() + "/" + relevantList.Count.ToString();
StatusBarViewModel.Instance.NumSearch = "Num Searched :" + results.ScoreDocs.Length.ToString();
// Logging Trec
trecLogger.Logging(qid, logItems);
//Console.WriteLine(string.Join(",", relevantList));
return(query.ToString());
}
