public virtual void Browse(
BrowseRequest req,
Weight weight,
Collector collector,
IDictionary<string, IFacetAccessible> facetMap,
int start)
{
if (_reader == null)
return;
// initialize all RuntimeFacetHandlers with data supplied by user at run-time.
_runtimeFacetHandlers = new List<IRuntimeFacetHandler>(_runtimeFacetHandlerFactoryMap.Count());
IEnumerable<string> runtimeFacetNames = _runtimeFacetHandlerFactoryMap.Keys;
foreach (string facetName in runtimeFacetNames)
{
var sfacetHandler = this.GetFacetHandler(facetName);
if (sfacetHandler!=null)
{
logger.Warn("attempting to reset facetHandler: " + sfacetHandler);
continue;
}
IRuntimeFacetHandlerFactory factory = (IRuntimeFacetHandlerFactory)_runtimeFacetHandlerFactoryMap.Get(facetName);
try
{
FacetHandlerInitializerParam data = req.GetFacetHandlerData(facetName);
if (data == null)
data = FacetHandlerInitializerParam.EMPTY_PARAM;
if (data != FacetHandlerInitializerParam.EMPTY_PARAM || !factory.IsLoadLazily)
{
IRuntimeFacetHandler facetHandler = factory.Get(data);
if (facetHandler != null)
{
_runtimeFacetHandlers.Add(facetHandler); // add to a list so we close them after search
this.SetFacetHandler(facetHandler);
}
}
}
catch (Exception e)
{
throw new BrowseException("error trying to set FacetHandler : " + facetName + ":" + e.Message, e);
}
}
// done initialize all RuntimeFacetHandlers with data supplied by user at run-time.
IEnumerable<string> fields = FacetNames;
List<Filter> preFilterList = new List<Filter>();
List<FacetHitCollector> facetHitCollectorList = new List<FacetHitCollector>();
Filter baseFilter = req.Filter;
if (baseFilter != null)
{
preFilterList.Add(baseFilter);
}
int selCount = req.SelectionCount;
bool isNoQueryNoFilter = IsNoQueryNoFilter(req);
bool isDefaultSearch = isNoQueryNoFilter && selCount == 0;
try
{
foreach (string name in fields)
{
BrowseSelection sel = req.GetSelection(name);
FacetSpec ospec = req.GetFacetSpec(name);
var handler = GetFacetHandler(name);
if (handler == null)
{
logger.Error("facet handler: " + name + " is not defined, ignored.");
continue;
}
FacetHitCollector facetHitCollector = null;
RandomAccessFilter filter = null;
if (sel != null)
{
filter = handler.BuildFilter(sel);
}
if (ospec == null)
{
if (filter != null)
{
preFilterList.Add(filter);
}
}
else
{
/*FacetSpec fspec = new FacetSpec(); // OrderValueAsc,
fspec.setMaxCount(0);
fspec.setMinHitCount(1);
fspec.setExpandSelection(ospec.isExpandSelection());*/
FacetSpec fspec = ospec;
facetHitCollector = new FacetHitCollector();
facetHitCollector.facetHandler = handler;
if (isDefaultSearch)
{
facetHitCollector._collectAllSource = handler.GetFacetCountCollectorSource(sel, fspec);
}
else
{
facetHitCollector._facetCountCollectorSource = handler.GetFacetCountCollectorSource(sel, fspec);
if (ospec.ExpandSelection)
{
if (isNoQueryNoFilter && sel != null && selCount == 1)
{
facetHitCollector._collectAllSource = handler.GetFacetCountCollectorSource(sel, fspec);
if (filter != null)
{
preFilterList.Add(filter);
}
}
else
{
if (filter != null)
{
facetHitCollector._filter = filter;
}
}
}
else
{
if (filter != null)
{
preFilterList.Add(filter);
}
}
}
}
if (facetHitCollector != null)
{
facetHitCollectorList.Add(facetHitCollector);
}
}
Filter finalFilter = null;
if (preFilterList.Count > 0)
{
if (preFilterList.Count == 1)
{
finalFilter = preFilterList.First();
}
else
{
finalFilter = new AndFilter(preFilterList);
}
}
this.FacetHitCollectorList = facetHitCollectorList;
try
{
if (weight == null)
{
var q = req.Query;
if (q == null)
{
q = new MatchAllDocsQuery();
}
weight = CreateWeight(q);
}
Search(weight, finalFilter, collector, start, req.MapReduceWrapper);
}
finally
{
foreach (FacetHitCollector facetCollector in facetHitCollectorList)
{
string name = facetCollector.facetHandler.Name;
List<IFacetCountCollector> resultcollector = null;
resultcollector = facetCollector._countCollectorList;
if (resultcollector == null || resultcollector.Count == 0)
{
resultcollector = facetCollector._collectAllCollectorList;
}
if (resultcollector != null)
{
FacetSpec fspec = req.GetFacetSpec(name);
Debug.Assert(fspec != null);
if(resultcollector.Count == 1)
{
facetMap.Put(name, resultcollector[0]);
}
else
{
List<IFacetAccessible> finalList = new List<IFacetAccessible>(resultcollector.Count);
foreach (IFacetCountCollector fc in resultcollector)
{
finalList.Add((IFacetAccessible)fc);
}
CombinedFacetAccessible combinedCollector = new CombinedFacetAccessible(fspec, finalList);
facetMap.Put(name, combinedCollector);
}
}
}
}
}
catch (Exception ioe)
{
throw new BrowseException(ioe.Message, ioe);
}
}
public virtual void Browse(
BrowseRequest req,
Weight weight,
Collector collector,
IDictionary <string, IFacetAccessible> facetMap,
int start)
{
if (_reader == null)
{
return;
}
// initialize all RuntimeFacetHandlers with data supplied by user at run-time.
_runtimeFacetHandlers = new List <IRuntimeFacetHandler>(_runtimeFacetHandlerFactoryMap.Count());
IEnumerable <string> runtimeFacetNames = _runtimeFacetHandlerFactoryMap.Keys;
foreach (string facetName in runtimeFacetNames)
{
var sfacetHandler = this.GetFacetHandler(facetName);
if (sfacetHandler != null)
{
logger.Warn("attempting to reset facetHandler: " + sfacetHandler);
continue;
}
IRuntimeFacetHandlerFactory factory = (IRuntimeFacetHandlerFactory)_runtimeFacetHandlerFactoryMap.Get(facetName);
try
{
FacetHandlerInitializerParam data = req.GetFacetHandlerData(facetName);
if (data == null)
{
data = FacetHandlerInitializerParam.EMPTY_PARAM;
}
if (data != FacetHandlerInitializerParam.EMPTY_PARAM || !factory.IsLoadLazily)
{
IRuntimeFacetHandler facetHandler = factory.Get(data);
if (facetHandler != null)
{
_runtimeFacetHandlers.Add(facetHandler); // add to a list so we close them after search
this.SetFacetHandler(facetHandler);
}
}
}
catch (Exception e)
{
throw new BrowseException("error trying to set FacetHandler : " + facetName + ":" + e.Message, e);
}
}
// done initialize all RuntimeFacetHandlers with data supplied by user at run-time.
IEnumerable <string> fields = FacetNames;
List <Filter> preFilterList = new List <Filter>();
List <FacetHitCollector> facetHitCollectorList = new List <FacetHitCollector>();
Filter baseFilter = req.Filter;
if (baseFilter != null)
{
preFilterList.Add(baseFilter);
}
int selCount = req.SelectionCount;
bool isNoQueryNoFilter = IsNoQueryNoFilter(req);
bool isDefaultSearch = isNoQueryNoFilter && selCount == 0;
try
{
foreach (string name in fields)
{
BrowseSelection sel = req.GetSelection(name);
FacetSpec ospec = req.GetFacetSpec(name);
var handler = GetFacetHandler(name);
if (handler == null)
{
logger.Error("facet handler: " + name + " is not defined, ignored.");
continue;
}
FacetHitCollector facetHitCollector = null;
RandomAccessFilter filter = null;
if (sel != null)
{
filter = handler.BuildFilter(sel);
}
if (ospec == null)
{
if (filter != null)
{
preFilterList.Add(filter);
}
}
else
{
/*FacetSpec fspec = new FacetSpec(); // OrderValueAsc,
* fspec.setMaxCount(0);
* fspec.setMinHitCount(1);
*
* fspec.setExpandSelection(ospec.isExpandSelection());*/
FacetSpec fspec = ospec;
facetHitCollector = new FacetHitCollector();
facetHitCollector.facetHandler = handler;
if (isDefaultSearch)
{
facetHitCollector._collectAllSource = handler.GetFacetCountCollectorSource(sel, fspec);
}
else
{
facetHitCollector._facetCountCollectorSource = handler.GetFacetCountCollectorSource(sel, fspec);
if (ospec.ExpandSelection)
{
if (isNoQueryNoFilter && sel != null && selCount == 1)
{
facetHitCollector._collectAllSource = handler.GetFacetCountCollectorSource(sel, fspec);
if (filter != null)
{
preFilterList.Add(filter);
}
}
else
{
if (filter != null)
{
facetHitCollector._filter = filter;
}
}
}
else
{
if (filter != null)
{
preFilterList.Add(filter);
}
}
}
}
if (facetHitCollector != null)
{
facetHitCollectorList.Add(facetHitCollector);
}
}
Filter finalFilter = null;
if (preFilterList.Count > 0)
{
if (preFilterList.Count == 1)
{
finalFilter = preFilterList.First();
}
else
{
finalFilter = new AndFilter(preFilterList);
}
}
this.FacetHitCollectorList = facetHitCollectorList;
try
{
if (weight == null)
{
var q = req.Query;
if (q == null)
{
q = new MatchAllDocsQuery();
}
weight = CreateWeight(q);
}
Search(weight, finalFilter, collector, start, req.MapReduceWrapper);
}
finally
{
foreach (FacetHitCollector facetCollector in facetHitCollectorList)
{
string name = facetCollector.facetHandler.Name;
List <IFacetCountCollector> resultcollector = null;
resultcollector = facetCollector._countCollectorList;
if (resultcollector == null || resultcollector.Count == 0)
{
resultcollector = facetCollector._collectAllCollectorList;
}
if (resultcollector != null)
{
FacetSpec fspec = req.GetFacetSpec(name);
Debug.Assert(fspec != null);
if (resultcollector.Count == 1)
{
facetMap.Put(name, resultcollector[0]);
}
else
{
List <IFacetAccessible> finalList = new List <IFacetAccessible>(resultcollector.Count);
foreach (IFacetCountCollector fc in resultcollector)
{
finalList.Add((IFacetAccessible)fc);
}
CombinedFacetAccessible combinedCollector = new CombinedFacetAccessible(fspec, finalList);
facetMap.Put(name, combinedCollector);
}
}
}
}
}
catch (Exception ioe)
{
throw new BrowseException(ioe.Message, ioe);
}
}
/// <summary>
/// Generates a merged BrowseResult from the supplied <see cref="T:BrowseRequest"/> and a <see cref="T:Lucene.Net.Search.Weight"/>.
/// The results are put into a Lucene.Net <see cref="T:Lucene.Net.Search.Collector"/> and a <see cref="T:System.Collections.Generic.IDictionary{System.String, IFacetAccessible}"/>.
/// </summary>
/// <param name="req"><see cref="T:BrowseRequest"/> for generating the facets.</param>
/// <param name="weight">A <see cref="T:Lucene.Net.Search.Weight"/> instance to alter the score of the queries in a multiple index scenario.</param>
/// <param name="hitCollector">A <see cref="T:Lucene.Net.Search.Collector"/> for the hits generated during a search.</param>
/// <param name="facetMap">A dictionary of all of the facet collections (output).</param>
/// <param name="start">The offset value for the document number.</param>
public virtual void Browse(
BrowseRequest req,
Weight weight,
Collector hitCollector,
IDictionary <string, IFacetAccessible> facetMap,
int start)
{
IBrowsable[] browsers = this.GetSubBrowsers();
// index empty
if (browsers == null || browsers.Length == 0)
{
return;
}
int[] starts = GetStarts();
var mergedMap = new Dictionary <string, IList <IFacetAccessible> >();
try
{
var facetColMap = new Dictionary <string, IFacetAccessible>();
for (int i = 0; i < browsers.Length; i++)
{
try
{
browsers[i].Browse(req, weight, hitCollector, facetColMap, (start + starts[i]));
}
finally
{
foreach (var entry in facetColMap)
{
string name = entry.Key;
IFacetAccessible facetAccessor = entry.Value;
var list = mergedMap.Get(name);
if (list == null)
{
list = new List <IFacetAccessible>(browsers.Length);
mergedMap.Put(name, list);
}
list.Add(facetAccessor);
}
facetColMap.Clear();
}
}
}
finally
{
if (req.MapReduceWrapper != null)
{
req.MapReduceWrapper.FinalizePartition();
}
foreach (var entry in mergedMap)
{
string name = entry.Key;
IFacetHandler handler = GetFacetHandler(name);
try
{
IList <IFacetAccessible> subList = entry.Value;
if (subList != null)
{
IFacetAccessible merged = handler.Merge(req.GetFacetSpec(name), subList);
facetMap.Put(name, merged);
}
}
catch (Exception e)
{
logger.Error(e.Message, e);
}
}
}
}
/// <summary>
/// Generates a merged BrowseResult from the supplied <see cref="T:BrowseRequest"/>.
/// The results are put into a Lucene.Net <see cref="T:Lucene.Net.Search.Collector"/> and a <see cref="T:System.Collections.Generic.IDictionary{System.String, IFacetAccessible}"/>.
/// </summary>
/// <param name="req"><see cref="T:BrowseRequest"/> for generating the facets.</param>
/// <param name="hitCollector">A <see cref="T:Lucene.Net.Search.Collector"/> for the hits generated during a search.</param>
/// <param name="facetMap">A dictionary of all of the facet collections (output).</param>
/// <param name="start">The offset value for the document number.</param>
public virtual void Browse(
BrowseRequest req,
ICollector hitCollector,
IDictionary <string, IFacetAccessible> facetMap,
int start)
{
// index empty
if (m_subBrowsers == null || m_subBrowsers.Length == 0)
{
return;
}
try
{
var q = req.Query;
MatchAllDocsQuery matchAllDocsQuery = new MatchAllDocsQuery();
if (q == null)
{
q = matchAllDocsQuery;
}
else if (!(q is MatchAllDocsQuery))
{
//MatchAllQuery is needed to filter out the deleted docids, that reside in ZoieSegmentReader and are not visible on Bobo level
matchAllDocsQuery.Boost = 0f;
q = QueriesSupport.CombineAnd(matchAllDocsQuery, q);
}
req.Query = q;
}
catch (Exception ioe)
{
throw new BrowseException(ioe.Message, ioe);
}
var mergedMap = new Dictionary <string, IList <IFacetAccessible> >();
try
{
var facetColMap = new Dictionary <string, IFacetAccessible>();
for (int i = 0; i < m_subBrowsers.Length; i++)
{
try
{
m_subBrowsers[i].Browse(req, hitCollector, facetColMap, (start + ReaderBase(i)));
}
finally
{
foreach (var entry in facetColMap)
{
string name = entry.Key;
IFacetAccessible facetAccessor = entry.Value;
var list = mergedMap.Get(name);
if (list == null)
{
list = new List <IFacetAccessible>(m_subBrowsers.Length);
mergedMap.Put(name, list);
}
list.Add(facetAccessor);
}
facetColMap.Clear();
}
}
}
finally
{
if (req.MapReduceWrapper != null)
{
req.MapReduceWrapper.FinalizePartition();
}
foreach (var entry in mergedMap)
{
string name = entry.Key;
IFacetHandler handler = GetFacetHandler(name);
try
{
IList <IFacetAccessible> subList = entry.Value;
if (subList != null)
{
IFacetAccessible merged = handler.Merge(req.GetFacetSpec(name), subList);
facetMap.Put(name, merged);
}
}
catch (Exception e)
{
logger.ErrorException(e.Message, e);
}
}
}
}
///<summary>browses the index.</summary>
///<param name="req">browse request </param>
///<param name="collector">collector for the hits </param>
///<param name="facetMap">map to gather facet data </param>
public virtual void Browse(BrowseRequest req, Collector collector, Dictionary<string, IFacetAccessible> facetMap) // throws BrowseException
{
if (reader == null)
return;
IEnumerable<string> fields = GetFacetNames();
LinkedList<Filter> preFilterList = new LinkedList<Filter>();
List<FacetHitCollector> facetHitCollectorList = new List<FacetHitCollector>();
List<IFacetCountCollector> countAllCollectorList = new List<IFacetCountCollector>();
Filter baseFilter = req.Filter;
if (baseFilter != null)
{
preFilterList.AddLast(baseFilter);
}
int selCount = req.SelectionCount;
bool isNoQueryNoFilter = IsNoQueryNoFilter(req);
bool isDefaultSearch = isNoQueryNoFilter && selCount == 0;
try
{
foreach (string name in fields)
{
FacetSpec ospec = req.GetFacetSpec(name);
FacetHandler handler = GetFacetHandler(name);
if (handler == null)
{
logger.Warn("facet handler: " + name + " is not defined, ignored.");
continue;
}
FacetHitCollector facetHitCollector = null;
RandomAccessFilter filter = null;
BrowseSelection sel = req.GetSelection(name);
if (sel != null)
{
filter = handler.BuildFilter(sel);
}
if (ospec == null)
{
if (filter != null)
{
preFilterList.AddLast(filter);
}
}
else
{
if (isDefaultSearch)
{
countAllCollectorList.Add(handler.GetFacetCountCollector(sel, ospec));
}
else
{
facetHitCollector = new FacetHitCollector();
facetHitCollector.FacetCountCollector = handler.GetFacetCountCollector(sel, ospec);
facetHitCollector.FacetHandler = handler;
if (ospec.ExpandSelection)
{
if (isNoQueryNoFilter && sel != null && selCount == 1)
{
facetHitCollector = null; // don't post collect
countAllCollectorList.Add(handler.GetFacetCountCollector(sel, ospec));
if (filter != null)
{
preFilterList.AddLast(filter);
}
}
else
{
if (filter != null)
{
RandomAccessDocIdSet docset = filter.GetRandomAccessDocIdSet(reader);
facetHitCollector.PostDocIDSetIterator = docset.Iterator();
facetHitCollector.DocIdSet = docset;
}
}
}
else
{
if (filter != null)
{
preFilterList.AddLast(filter);
}
}
}
}
if (facetHitCollector != null)
{
facetHitCollectorList.Add(facetHitCollector);
}
}
Filter finalFilter = null;
if (preFilterList.Count > 0)
{
if (preFilterList.Count == 1)
{
finalFilter = preFilterList.First.Value;
}
else
{
finalFilter = new AndFilter(preFilterList);
}
}
SetFacetHitCollectorList(facetHitCollectorList);
Lucene.Net.Search.Query q = req.Query;
if (q == null || q is MatchAllDocsQuery)
{
q = reader.GetFastMatchAllDocsQuery();
}
try
{
Search(q, finalFilter, collector);
}
finally
{
foreach (FacetHitCollector facetCollector in facetHitCollectorList)
{
string name = facetCollector.FacetCountCollector.Name;
facetMap.Add(name, facetCollector.FacetCountCollector);
}
foreach (IFacetCountCollector facetCountCollector in countAllCollectorList)
{
facetCountCollector.CollectAll();
facetMap.Add(facetCountCollector.Name, facetCountCollector);
}
}
}
catch (System.IO.IOException ioe)
{
throw new BrowseException(ioe.Message, ioe);
}
}