public static IndexDocument[] Search(string query, string defaultField, string orderBy, int resultCount)
{
Query q = new Query(query);
q.DefaultField = defaultField;
q.OrderBy = orderBy;
q.StartResultIndex = 0;
q.EndResultIndex = resultCount;
return Search(new Query(query));
}
public override Query BuildQuery(Query current)
{
Mubble.Models.Controllers.Query q = this.Parent.Content as Mubble.Models.Controllers.Query;
if (q != null)
{
current.Add(q.GetSpecifiedQuery());
}
return current;
}
public static QueryResults GetQueryResults(Query q, bool aggressiveCaching, out string cacheKey)
{
int startIndex = q.StartResultIndex;
int endIndex = q.EndResultIndex;
if (endIndex < 50 && aggressiveCaching)
{
q.StartResultIndex = 0;
q.EndResultIndex = 50;
}
int hashCode = q.GetHashCode();
cacheKey = CacheKey(q);
QueryResults finalResults = null;
Cacheable results = null;
try
{
using (queryLock.Lock(cacheKey, defaultTimeout))
{
results = HttpRuntime.Cache[cacheKey] as Cacheable;
if (results == null)
{
results = RunQueryAndCache(q, cacheKey);
}
}
}
catch (NamedLock<Query>.TimeoutException timeout)
{
throw new QueryBrokerException(
string.Format("The timeout period expired when trying to retrieve query results: {0}", hashCode),
timeout
);
}
if (results == null || results.Results == null)
{
throw new QueryBrokerException("Unable to retrieve query results");
}
if (results.LastRunTime < lastIndexUpdate)
{
QueueQuery(q, cacheKey, results);
}
finalResults = QueryResults.BuildFromRawQuery(results.Results, CachedQueryObjectLoader);
if (startIndex != finalResults.FirstIndex || endIndex != finalResults.LastIndex)
{
finalResults = finalResults.GetRange(startIndex, endIndex);
}
return finalResults;
}
public static List<Content> Query(string query, int startIndex, int showCount)
{
Query q = new Query(query);
q.StartResultIndex = startIndex;
q.EndResultIndex = showCount + startIndex;
q.OrderBy = "PublishDate DESC";
return Query(q);
}
public void Add(Query q)
{
if (q == null) return;
if (this.Text != null && this.Text.Length > 0) this.Text += " " + q.Text;
else this.Text = q.Text;
if (q.OrderBy != null && q.OrderBy != this.OrderBy)
{
this.OrderBy = q.OrderBy;
}
if (q.DefaultField != null && q.DefaultField != this.DefaultField)
{
this.DefaultField = q.DefaultField;
}
foreach (QueryClause t in q.Terms)
{
this.Add(t);
}
}
public static Query Parse(XmlDocument xml, Query q)
{
XmlNode root = xml.FirstChild;
q.OrderBy = root.Attributes["orderBy"] != null ? root.Attributes["orderBy"].Value : q.OrderBy;
BooleanClause bc = new BooleanClause(
GetBoolAttribute(root, "required", false),
GetBoolAttribute(root, "excluded", false)
);
foreach (XmlNode node in root.ChildNodes)
{
ParseTag(node, bc);
}
q.Add(bc);
return q;
}
public static Query Parse(XmlDocument xml)
{
Query q = new Query();
return Parse(xml, q);
}
public static ContentList Query(Query query, string[] groups, string[] permissions)
{
if (groups != null && groups.Length > 0 && permissions != null && permissions.Length > 0)
{
foreach (string permission in permissions)
{
BooleanClause bc = new BooleanClause(true, false);
foreach (string role in groups)
{
bc.AddClause(
new TermClause(
string.Format("GroupWith{0}Permissions", permission),
role,
false,
false)
);
}
query.Add(bc);
}
}
if (query.OrderBy == null) query.OrderBy = "PublishDate DESC";
if (query.DefaultField == null) query.DefaultField = "Text";
ContentList results = new ContentList();
try
{
IndexDocument[] docs = Engine.Search(query);
Dictionary<Guid, bool> usedResults = new Dictionary<Guid, bool>(docs.Length);
results.StartIndex = query.StartResultIndex;
results.EndIndex = query.EndResultIndex;
results.TotalResults = query.TotalResults;
for (int i = 0; i < docs.Length; i++)
{
Guid id = new Guid(docs[i].Get("ActiveObjectsID"));
if (!usedResults.ContainsKey(id))
{
usedResults.Add(id, true);
results.Add(new Content(docs[i]));
}
else
{
LogDuplicate(id, docs[i].Get("Title"));
}
}
usedResults.Clear();
}
catch { }
return results;
}
static Cacheable RunQueryAndCache(Query q, string cacheKey)
{
return RunQueryAndCache(q, cacheKey, null);
}
static void QueueQuery(Query q, string cacheKey, Cacheable current)
{
lock (queuedQueries)
{
if (!queuedQueries.ContainsKey(cacheKey))
{
queuedQueries.Add(cacheKey, DateTime.Now);
Worker.Queue(
new QueryRunner(SafeRunQueryAndCache),
q,
cacheKey,
current
);
}
}
}
static string CacheKey(Query q)
{
return string.Concat("Query[", q.GetHashCode(), "]");
}
public override Query BuildQuery(Query current)
{
System.Web.HttpRequest request = this.Parent.Page.Request;
System.Web.HttpResponse response = this.Parent.Page.Response;
string freetext = request.QueryString["search"];
Query q = new Query();
bool isValid = false;
if (freetext != null && freetext.Length > 0)
{
q.Text += freetext;
isValid = true;
}
if ("true".Equals(request.QueryString["featured"], StringComparison.CurrentCultureIgnoreCase))
{
q.AddTerm("IsFeatured", "true", true, false);
q.AddTerm("IsFeatured", "false", false, true);
isValid = true;
}
string t = request.QueryString["tag"];
if (t != null && t.Trim().Length > 0)
{
string[] tags = t.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
Regex rx = new Regex(@"(?<Term>\w+)(?<Boost>\^\d+)");
foreach (string tag in tags)
{
Match m = rx.Match(tag);
if (m.Success)
{
q.Add(new TermClause("Tag", m.Groups["Term"].Value, float.Parse(m.Groups["Boost"].Value.Substring(1))));
}
else
{
q.AddTerm("Tag", t, true, false);
}
}
isValid = true;
}
string author = request.QueryString["author"];
if (author != null && author.Length > 0)
{
q.AddTerm("Author", author, true, false);
isValid = true;
}
string section = request.QueryString["path"];
if (section != null && section.Length > 1)
{
q.AddTerm("Path", section + "*", true, true, false);
isValid = true;
}
if ("score".Equals(request.QueryString["sort"], StringComparison.CurrentCultureIgnoreCase))
{
q.OrderBy = "Score";
}
current.Add(q);
if (!isValid)
{
current.IsValid = false;
}
return current;
}
public abstract IndexDocument[] Query(Query query);
public static IndexDocument[] Search(Query query)
{
return CurrentEngine.Query(query);
}
public static ContentList Query(Query query)
{
return Query(query, null);
}
public static ContentList Query(Query query, string[] groups)
{
return Query(query, groups, new string[] {"View"});
}
static Cacheable RunQueryAndCache(Query q, string cacheKey, Cacheable current)
{
ContentList results = Content.Query(q);
Cacheable updated = new Cacheable(results, DateTime.Now);
if (current == null || current.Results != null || current.Results.Count < 2 || results.Count > 0)
{
CacheBroker.Set(cacheKey, updated, Config.Caching.Current.GetSlidingExpiration());
if (CachedQueryChanged != null && (current == null || !results.Equals(current.Results)))
{
CachedQueryChanged(cacheKey);
}
}
lock (queuedQueries)
{
queuedQueries.Remove(cacheKey);
}
return updated;
}
static Cacheable SafeRunQueryAndCache(Query q, string cacheKey, Cacheable current)
{
try
{
return RunQueryAndCache(q, cacheKey, current);
}
catch (Exception ex)
{
log.Error("Running background query failed", ex);
return null;
}
}
public IActiveCollection GetData(int startIndex, int endIndex)
{
Query q = new Query();
q.OrderBy = this.OrderBy;
q.StartResultIndex = startIndex;
if (endIndex > startIndex)
{
q.EndResultIndex = endIndex;
q.EndResultIndex += this.GroupItems.Count;
}
foreach (IQueryFilter filter in this.Filters)
{
filter.Parent = this.Parent;
q = filter.BuildQuery(q);
}
if (q.IsValid)
{
q.RestrictByGroups(IndexPermissions.View, Security.User.GetRoles());
string queryKey = null;
QueryResults qr = QueryBroker.GetQueryResults(q, this.AggressiveCaching, out queryKey);
//QueryBroker.GetQueryResults(q, !this.Asynchronous, this.AggressiveCaching, out queryKey);
if (this.CacheAgainstQuery)
{
Parent.Page.SetQueryResultDependency(queryKey);
}
if (qr == null) return null;
return qr;
}
else
{
return null;
}
}
