public SearchResult[] Search(string query)
{
Hits hits = _doSearch(query);
List<SearchResult> results = new List<SearchResult>();
for (int i = 0; i < hits.Length(); i++)
{
Document doc = hits.Doc(i);
string contents = doc.Get("contents");
SimpleHTMLFormatter formatter = new SimpleHTMLFormatter("<span class=\"highlight\">", "</span>");
SimpleFragmenter fragmenter = new SimpleFragmenter(_fragmentSize);
Highlighter hiliter = new Highlighter(formatter, new QueryScorer(QueryParser.Parse(query, "contents", _analyzer)));
hiliter.SetTextFragmenter(fragmenter);
int numfragments = contents.Length / fragmenter.GetFragmentSize() + 1;
TokenStream tokenstream = _analyzer.TokenStream("contents", new StringReader(contents));
TextFragment[] frags = hiliter.GetBestTextFragments(tokenstream, contents, false, numfragments);
SearchResult sr = new SearchResult(doc, _analyzer, query, _fragmentSize);
foreach (TextFragment frag in frags)
{
if (frag.GetScore() > 0)
sr.AddFragment(frag.ToString());
}
results.Add(sr);
}
return results.ToArray();
}
public static void Highlight(Document d, string query, Analyzer analyzer)
{
string contents = d.Get("contents");
SimpleHTMLFormatter formatter = new SimpleHTMLFormatter("<span class=\"highlight\"><b>", "</b></span>");
//SpanGradientFormatter formatter = new SpanGradientFormatter(10.0f, null, null, "#F1FD9F", "#EFF413");
//SimpleHTMLEncoder encoder = new SimpleHTMLEncoder();
SimpleFragmenter fragmenter = new SimpleFragmenter(250);
Highlighter hiliter = new Highlighter(formatter, new QueryScorer(QueryParser.Parse(query, "contents", analyzer)));
hiliter.SetTextFragmenter(fragmenter);
int numfragments = contents.Length / fragmenter.GetFragmentSize() + 1;// +1 ensures its never zero. More than the required number of fragments dont harm.
StringBuilder result = new StringBuilder("<html><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"><style>.highlight{background:yellow;}</style><head><title>Search Results - ");
result.Append(d.Get("filename"));
result.Append("</title></head><body><font face=Arial size=5>");
TokenStream tokenstream = analyzer.TokenStream("contents", new System.IO.StringReader(contents));
TextFragment[] frags = hiliter.GetBestTextFragments(tokenstream, contents, false, numfragments);
foreach (TextFragment frag in frags)
{
if (frag.GetScore() > 0)
{
result.Append(frag.ToString() + "<br/><hr/><br/>");
}
}
string contentspath = System.IO.Path.Combine(System.Windows.Forms.Application.StartupPath, "contents.html");
result.Append("</font><a target=_self href=\"file:///");
result.Append(contentspath);
result.Append("\">View Original Document...</a>");
result.Append("</body></html>");
result.Replace("\n", "<br/>");
string resultspath = System.IO.Path.Combine(System.Windows.Forms.Application.StartupPath, "results.html");
System.IO.File.WriteAllText(resultspath, result.ToString());
//webBrowser1.Url = new Uri("file:///" + resultspath);
Highlighter hiliter2 = new Highlighter(formatter, new QueryScorer(QueryParser.Parse(query, "contents", analyzer)));
hiliter2.SetTextFragmenter(fragmenter);
TokenStream tokstr = analyzer.TokenStream(new System.IO.StringReader(contents));
StringBuilder htmlcontents = new StringBuilder("<html><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"><style>.highlight{background:yellow;}</style><body><font face=Arial size=5>");
htmlcontents.Append(hiliter2.GetBestFragments(tokstr, contents, numfragments, "..."));
htmlcontents.Append("</font></body></html>");
htmlcontents.Replace("\n", "<br/>");
System.IO.File.WriteAllText(contentspath, htmlcontents.ToString());
}
public static SearchResult GetFastSearchResultFragments(ref SearchResult sr)
{
Document doc = sr.Document;
string contents = doc.Get("contents");
SimpleHTMLFormatter formatter = new SimpleHTMLFormatter("<span class=\"highlight\">", "</span>");
SimpleFragmenter fragmenter = new SimpleFragmenter(sr.FragmentSize);
Highlighter hiliter = new Highlighter(formatter, new QueryScorer(sr.QueryParser.Parse(sr.Query)));
hiliter.SetTextFragmenter(fragmenter);
int numfragments = contents.Length / fragmenter.GetFragmentSize() + 1;
TokenStream tokenstream = sr.Analyzer.TokenStream("contents", new StringReader(contents));
TextFragment[] frags = hiliter.GetBestTextFragments(tokenstream, contents, false, numfragments);
//SearchResult sr = new SearchResult(doc, _analyzer, query, _fragmentSize);
foreach (TextFragment frag in frags)
{
if (frag.GetScore() > 0)
sr.AddFragment(frag.ToString());
}
return sr;
}
