/// <summary>
/// Searches the index.
/// </summary>
/// <param name="queryText"></param>
/// <param name="categoryNames"></param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <param name="roleIds"></param>
/// <returns></returns>
public SearchResultCollection Find(string queryText, IList<string> categoryNames, int pageIndex, int pageSize, IEnumerable<int> roleIds)
{
long startTicks = DateTime.Now.Ticks;
// the overall-query
BooleanQuery query = new BooleanQuery();
// add our parsed query
if (!String.IsNullOrEmpty(queryText))
{
Query multiQuery = MultiFieldQueryParser.Parse(new[] { queryText, queryText, queryText }, new[] { "title", "summary", "contents" }, new StandardAnalyzer());
query.Add(multiQuery, BooleanClause.Occur.MUST);
}
// add the security constraint - must be satisfied
query.Add(this.BuildSecurityQuery(roleIds), BooleanClause.Occur.MUST);
// Add the category query (if available)
if (categoryNames != null)
{
query.Add(this.BuildCategoryQuery(categoryNames), BooleanClause.Occur.MUST);
}
IndexSearcher searcher = new IndexSearcher(this._indexDirectory);
Hits hits = searcher.Search(query);
int start = pageIndex * pageSize;
int end = (pageIndex + 1) * pageSize;
if (hits.Length() <= end)
{
end = hits.Length();
}
SearchResultCollection results = new SearchResultCollection(end);
results.TotalCount = hits.Length();
results.PageIndex = pageIndex;
for (int i = start; i < end; i++)
{
SearchResult result = new SearchResult();
result.Title = hits.Doc(i).Get("title");
result.Summary = hits.Doc(i).Get("summary");
result.Author = hits.Doc(i).Get("author");
result.ModuleType = hits.Doc(i).Get("moduletype");
result.Path = hits.Doc(i).Get("path");
string[] categories = hits.Doc(i).GetValues("category");
result.Category = categories != null ? String.Join(", ", categories) : String.Empty;
//Caused 'String was not recognized as a valid DateTime.' when site culture was set
//to Africa (and maybe others: "z" Custom Format Specifier)
//See: http://stackoverflow.com/questions/284775/how-do-i-parse-and-convert-datetimes-to-the-rfc-822-date-time-format
result.DateCreated = Rfc822DateTime.Parse(hits.Doc(i).Get("datecreated")).ToLocalTime();
//result.DateCreated = DateTime.Parse((hits.Doc(i).Get("datecreated")));
result.Score = hits.Score(i);
result.Boost = hits.Doc(i).GetBoost();
result.SectionId = Int32.Parse(hits.Doc(i).Get("sectionid"));
results.Add(result);
}
searcher.Close();
results.ExecutionTime = DateTime.Now.Ticks - startTicks;
return results;
}
/// <summary>
/// Searches the index.
/// </summary>
/// <param name="queryText"></param>
/// <param name="categoryNames"></param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <param name="roleIds"></param>
/// <returns></returns>
public SearchResultCollection Find(string queryText, IList<string> categoryNames, int pageIndex, int pageSize, IEnumerable<int> roleIds)
{
long startTicks = DateTime.Now.Ticks;
// the overall-query
BooleanQuery query = new BooleanQuery();
// add our parsed query
if (!String.IsNullOrEmpty(queryText))
{
Query multiQuery = MultiFieldQueryParser.Parse(new[] { queryText, queryText, queryText }, new[] { "title", "summary", "contents" }, new StandardAnalyzer());
query.Add(multiQuery, BooleanClause.Occur.MUST);
}
// add the security constraint - must be satisfied
query.Add(this.BuildSecurityQuery(roleIds), BooleanClause.Occur.MUST);
// Add the category query (if available)
if (categoryNames != null)
{
query.Add(this.BuildCategoryQuery(categoryNames), BooleanClause.Occur.MUST);
}
IndexSearcher searcher = new IndexSearcher(this._indexDirectory);
Hits hits = searcher.Search(query);
int start = pageIndex * pageSize;
int end = (pageIndex + 1) * pageSize;
if (hits.Length() <= end)
{
end = hits.Length();
}
SearchResultCollection results = new SearchResultCollection(end);
results.TotalCount = hits.Length();
results.PageIndex = pageIndex;
for (int i = start; i < end; i++)
{
SearchResult result = new SearchResult();
result.Title = hits.Doc(i).Get("title");
result.Summary = hits.Doc(i).Get("summary");
result.Author = hits.Doc(i).Get("author");
result.ModuleType = hits.Doc(i).Get("moduletype");
result.Path = hits.Doc(i).Get("path");
string[] categories = hits.Doc(i).GetValues("category");
result.Category = categories != null ? String.Join(", ", categories) : String.Empty;
result.DateCreated = DateTime.Parse((hits.Doc(i).Get("datecreated")));
result.Score = hits.Score(i);
result.Boost = hits.Doc(i).GetBoost();
result.SectionId = Int32.Parse(hits.Doc(i).Get("sectionid"));
results.Add(result);
}
searcher.Close();
results.ExecutionTime = DateTime.Now.Ticks - startTicks;
return results;
}
