public static void Main(System.String[] a)
{
System.String indexName = "localhost_index";
System.String fn = "c:/Program Files/Apache Group/Apache/htdocs/manual/vhosts/index.html.en";
System.Uri url = null;
for (int i = 0; i < a.Length; i++)
{
if (a[i].Equals("-i"))
{
indexName = a[++i];
}
else if (a[i].Equals("-f"))
{
fn = a[++i];
}
else if (a[i].Equals("-url"))
{
url = new System.Uri(a[++i]);
}
}
System.IO.StreamWriter temp_writer;
temp_writer = new System.IO.StreamWriter(System.Console.OpenStandardOutput(), System.Console.Out.Encoding);
temp_writer.AutoFlush = true;
System.IO.StreamWriter o = temp_writer;
IndexReader r = IndexReader.Open(indexName);
o.WriteLine("Open index " + indexName + " which has " + r.NumDocs() + " docs");
MoreLikeThis mlt = new MoreLikeThis(r);
o.WriteLine("Query generation parameters:");
o.WriteLine(mlt.DescribeParams());
o.WriteLine();
Query query = null;
if (url != null)
{
o.WriteLine("Parsing URL: " + url);
query = mlt.Like(url);
}
else if (fn != null)
{
o.WriteLine("Parsing file: " + fn);
query = mlt.Like(new System.IO.FileInfo(fn));
}
o.WriteLine("q: " + query);
o.WriteLine();
IndexSearcher searcher = new IndexSearcher(indexName);
Hits hits = searcher.Search(query);
int len = hits.Length();
o.WriteLine("found: " + len + " documents matching");
o.WriteLine();
for (int i = 0; i < System.Math.Min(25, len); i++)
{
Document d = hits.Doc(i);
System.String summary = d.Get("summary");
o.WriteLine("score : " + hits.Score(i));
o.WriteLine("url : " + d.Get("url"));
o.WriteLine("\ttitle : " + d.Get("title"));
if (summary != null)
{
o.WriteLine("\tsummary: " + d.Get("summary"));
}
o.WriteLine();
}
}
public SearchModel Search(string searchText)
{
var result = new SearchModel();
if (string.IsNullOrEmpty(searchText))
{
result.Message = "Įveskite paieškos užklausą.";
return(result);
}
var stemmedSearchText = new LithuanianStemmer().Stem(searchText.Trim());
if (string.IsNullOrEmpty(stemmedSearchText))
{
result.Message = "Įveskite paieškos užklausą.";
return(result);
}
Lucene.Net.Search.Hits hits = null;
try
{
if (char.IsLetter(stemmedSearchText[stemmedSearchText.Length - 1]))
{
stemmedSearchText += "*";
}
query = parser.Parse(stemmedSearchText);
if (searcher == null)
{
searcher = new Lucene.Net.Search.IndexSearcher(CustomAppSettings.SearchIndexFolder);
}
hits = searcher.Search(query);
}
catch (Exception e)
{
result.Message = "Paieška nepavyko. Pataisykite užklausą. Klaidos pranešimas: " + e.Message;
return(result);
}
Lucene.Net.Highlight.Formatter formatter = new Lucene.Net.Highlight.SimpleHTMLFormatter(
"<span class=\"highlightResult\">",
"</span>");
var fragmenter = new Lucene.Net.Highlight.SimpleFragmenter(100);
var scorer = new Lucene.Net.Highlight.QueryScorer(searcher.Rewrite(query));
var highlighter = new Lucene.Net.Highlight.Highlighter(formatter, scorer);
highlighter.SetTextFragmenter(fragmenter);
Dictionary <string, int> dict_already_seen_ids = new Dictionary <string, int>();
var list = new List <SearchIndexModel>();
// insert the search results into a temp table which we will join with what's in the database
for (int i = 0; i < hits.Length(); i++)
{
if (dict_already_seen_ids.Count < 100)
{
Lucene.Net.Documents.Document doc = hits.Doc(i);
string id = doc.Get("id");
if (!dict_already_seen_ids.ContainsKey(id))
{
dict_already_seen_ids[id] = 1;
var model = new SearchIndexModel();
model.Id = id;
model.Score = hits.Score(i);
model.Subject = doc.Get("subject");
model.Type = (EntryTypes)Enum.Parse(typeof(EntryTypes), doc.Get("type"));
string raw_text = HttpUtility.HtmlEncode(doc.Get("raw_text"));
//string raw_text = doc.Get("raw_text");
Lucene.Net.Analysis.TokenStream stream = analyzer.TokenStream("text",
new System.IO.StringReader(
raw_text));
string highlighted_text = highlighter.GetBestFragments(stream, raw_text, 3, "...").Replace("'",
"''");
if (highlighted_text == "") // someties the highlighter fails to emit text...
{
highlighted_text = raw_text.Replace("'", "''");
}
if (highlighted_text.Length > 3000)
{
highlighted_text = highlighted_text.Substring(0, 3000);
}
model.HighlightedText = highlighted_text;
list.Add(model);
}
}
else
{
break;
}
}
result.List = list;
result.SearchPhrase = searchText;
if (list.Count == 0)
{
result.Message = string.Format("Įrašų pagal užklausą '{0}' nerasta. Patikslinkite paieškos duomenis.", searchText);
}
return(result);
}