protected virtual IQueryable <LucenePackage> ApplySearchCriteria(SearchCriteria criteria, IQueryable <LucenePackage> packages)
{
var advancedQuerySyntax = criteria.SearchTerm.Any(c => AdvancedQueryCharacters.Contains(c));
if (advancedQuerySyntax)
{
var queryParser = new NuGetQueryParser(LuceneDataProvider.CreateQueryParser <LucenePackage>())
{
AllowLeadingWildcard = true
};
try
{
var query = queryParser.Parse(criteria.SearchTerm);
return(packages.Where(query));
}
catch (ParseException ex)
{
throw new InvalidSearchCriteriaException("Failed to parse query", ex);
}
}
return(from
pkg in packages
where
((pkg.Id == criteria.SearchTerm).Boost(5) ||
(pkg.SearchId == criteria.SearchTerm).Boost(4) ||
(pkg.Title == criteria.SearchTerm).Boost(3) ||
(pkg.Tags == criteria.SearchTerm).Boost(2) ||
(pkg.Authors.Contains(criteria.SearchTerm) || pkg.Owners.Contains(criteria.SearchTerm)).Boost(2) ||
(pkg.Files.Contains(criteria.SearchTerm)) ||
(pkg.Summary == criteria.SearchTerm || pkg.Description == criteria.SearchTerm)).AllowSpecialCharacters()
select
pkg);
}
public SearchResult<ContactDocument> Search(string searchQuery)
{
using (var provider = new LuceneDataProvider(LuceneSearch.LuceneDirectory, Version.LUCENE_30))
{
provider.Settings.EnableMultipleEntities = false;
var queryParser = provider.CreateQueryParser<ContactDocument>();
queryParser.DefaultSearchProperty = "All";
queryParser.DefaultOperator = Lucene.Net.QueryParsers.QueryParser.Operator.AND;
var query = queryParser.Parse(searchQuery);
var queryable = provider.AsQueryable<ContactDocument>();
var results = queryable.Where(query);
return new SearchResult<ContactDocument>
{
SearchTerm = searchQuery,
Results = results.ToList()
};
}
}
