public static SearchResults Query(HttpContext ctx, string query, int page = 1) {
if (string.IsNullOrWhiteSpace(query)) {
return new SearchResults {
Documents = new SearchResult[0],
TotalCount = 0
};
}
var indexPath = ctx.Server.MapPath("~/App_Data/Index");
var indexSearcher = new DirectoryIndexSearcher(new DirectoryInfo(indexPath));
using (var searchService = new SearchService(indexSearcher)) {
var parser = new MultiFieldQueryParser(
Lucene.Net.Util.Version.LUCENE_29,
new[] { "Text" },
new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29));
Query multiQuery = GetSafeQuery(parser, query);
var result = searchService.SearchIndex(multiQuery);
return new SearchResults {
Documents = result.Results
.Skip(PageSize*(page - 1))
.Take(PageSize)
.Select(d => new SearchResult {
Url = d.Get("Url"),
Title = d.Get("Title"),
Summary = d.Get("Summary")
}),
TotalCount = result.Results.Count()
};
}
}
public static List<Creative> SearchCreatives(string IndexPath, string searchString, ICreativesRepository creativesRepository)
{
var indexSearcher = new DirectoryIndexSearcher(new DirectoryInfo(IndexPath), true);
Directory directory = FSDirectory.Open(new DirectoryInfo(IndexPath));
Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_30);
IndexReader indexReader = IndexReader.Open(directory, true);
Searcher indexSearch = new IndexSearcher(indexReader);
string[] fields = { "Titel", "About" };
var queryParser = new Lucene.Net.QueryParsers.MultiFieldQueryParser(Version.LUCENE_30, fields, analyzer);
var query = queryParser.Parse(searchString.ToLower() + "*");
var hits = indexSearch.Search(query, indexReader.MaxDoc).ScoreDocs;
List<Creative> creatives = new List<Creative>();
foreach (var hit in hits)
{
Document documentFromSearcher = indexSearch.Doc(hit.Doc);
creatives.Add(creativesRepository.GetCreativeById(int.Parse(documentFromSearcher.Get("CreativeId"))));
}
indexSearch.Dispose();
directory.Dispose();
return creatives;
}
public static DirectoryIndexSearcher GetIndexSearcher()
{
var indexPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Index");
var indexSearcher = new DirectoryIndexSearcher(new DirectoryInfo(indexPath), true);
return indexSearcher;
}
