public SearchResults Search(DocumentRoot root, string term)
{
var results = new SearchResults();
var indexPath = _settings.GetSearchIndexPath();
var version = Lucene.Net.Util.Version.LUCENE_30;
using (var directory = FSDirectory.Open(new DirectoryInfo(indexPath)))
using (var indexReader = IndexReader.Open(directory, true))
using (var indexSearch = new IndexSearcher(indexReader))
{
var analyzer = new StandardAnalyzer(version);
var queryParser = new MultiFieldQueryParser(version, new[] { "Title", "Body" }, analyzer);
var query = queryParser.Parse(term);
var resultDocs = indexSearch.Search(query, indexReader.MaxDoc);
var hits = resultDocs.ScoreDocs;
foreach (var hit in hits)
{
var doc = indexSearch.Doc(hit.Doc);
results.Documents.Add(new SearchResult
{
Score = hit.Score,
Snippet = doc.Get("Snippet"),
Title = doc.Get("Title")
});
}
}
return results;
}
public IEnumerable<string> ListDocumentNames(DocumentRoot root)
{
var path = Path.Combine(this.Settings.GetRepositoryPath(), root.ToPath());
return Directory.GetFiles(path, "*" + DocumentExtension)
.Select(Path.GetFileName)
.Select(f => f.Substring(0, f.Length - 3)) // strip file extension
.ToList();
}
public MarkdownDocument GetDocument(DocumentRoot root, string name)
{
var rootPath = GetAbsoluteDocumentRootPath(root);
var docPath = Path.Combine(rootPath, name + DocumentExtension);
if (File.Exists(docPath) == false)
{
throw new Exception(string.Format("No document with the name {0} could be found. [{1}]", name, rootPath));
}
return new MarkdownDocument(root, name, File.ReadAllText(docPath, Encoding.UTF8));
}
private void Index(DocumentRoot root)
{
var indexPath = _settings.GetSearchIndexPath();
var documents = _browser.ListDocuments(root);
var directory = FSDirectory.Open(new DirectoryInfo(indexPath));
var analyzer = new StandardAnalyzer(Version.LUCENE_30);
using (var writer = new IndexWriter(directory, analyzer, true, IndexWriter.MaxFieldLength.LIMITED))
{
foreach (var doc in documents)
{
var luceneDoc = new Document();
luceneDoc.Add(new Field("Title", doc.Title, Field.Store.YES, Field.Index.ANALYZED));
luceneDoc.Add(new Field("Snippet", doc.Markdown.Cut(500), Field.Store.YES, Field.Index.NO));
luceneDoc.Add(new Field("Body", doc.Markdown, Field.Store.NO, Field.Index.ANALYZED));
writer.AddDocument(luceneDoc);
}
writer.Optimize();
}
}
public MarkdownDocument(DocumentRoot root, string title, string markdown)
{
this.Root = root;
this.Title = title;
this.Markdown = markdown;
}
public IEnumerable<MarkdownDocument> ListDocuments(DocumentRoot root)
{
return ListDocumentNames(root).Select(name => GetDocument(root, name));
}
private string GetAbsoluteDocumentRootPath(DocumentRoot root)
{
return Path.Combine(this.Settings.GetRepositoryPath(), root.ToPath());
}