public FieldValueFrequencyStatistics <string> GetFieldValueFrequencyStatistics(IEnumerable <string> fieldNames)
{
var reader = GetIndexReader();
var result = new FieldValueFrequencyStatistics <string>(reader.NumDocs());
foreach (var fieldName in fieldNames)
{
var fieldValueFrequencies = new List <FieldValueFrequency>();
var stats = new TermRangeTermEnum(reader, FieldNameForStatistics(fieldName), null, null, true, true, null);
if (stats.Term() != null)
{
do
{
fieldValueFrequencies.Add(new FieldValueFrequency(stats.Term().Text(), stats.DocFreq()));
}while (stats.Next());
}
if (fieldValueFrequencies.Any())
{
result.Add(fieldName, fieldValueFrequencies);
}
}
reader.Close();
return(result);
}
public FieldValueFrequencyStatistics <IStatisticsField> GetFieldValueFrequencyStatistics(IPublishedContent content, IEnumerable <string> fieldNames = null)
{
if (content == null)
{
return(new FieldValueFrequencyStatistics <IStatisticsField>(0));
}
var fields = AllValueFields().StatisticsFields();
if (fieldNames != null)
{
fieldNames = fields.StatisticsFieldNames().Intersect(fieldNames, StringComparer.OrdinalIgnoreCase);
}
else
{
fieldNames = fields.StatisticsFieldNames();
}
if (fieldNames.Any() == false)
{
return(new FieldValueFrequencyStatistics <IStatisticsField>(0));
}
var index = IndexHelper.GetIndex(content.Id) as IStatisticsIndex;
if (index == null)
{
return(new FieldValueFrequencyStatistics <IStatisticsField>(0));
}
var statistics = index.GetFieldValueFrequencyStatistics(fieldNames);
// the statistics are indexed by field.FormSafeName - we need to reindex them by
// the fields themselves to support the frontend rendering
var result = new FieldValueFrequencyStatistics <IStatisticsField>(statistics.TotalRows);
foreach (var fieldValueFrequency in statistics.FieldValueFrequencies)
{
var field = fields.FirstOrDefault(f => f.FormSafeName == fieldValueFrequency.Field);
if (field == null)
{
continue;
}
result.Add(field, fieldValueFrequency.Frequencies);
}
return(result);
}
public FieldValueFrequencyStatistics<IStatisticsField> GetFieldValueFrequencyStatistics(IPublishedContent content, IEnumerable<string> fieldNames = null)
{
if(content == null)
{
return new FieldValueFrequencyStatistics<IStatisticsField>(0);
}
var fields = AllValueFields().StatisticsFields();
if(fieldNames != null)
{
fieldNames = fields.StatisticsFieldNames().Intersect(fieldNames, StringComparer.OrdinalIgnoreCase);
}
else
{
fieldNames = fields.StatisticsFieldNames();
}
if(fieldNames.Any() == false)
{
return new FieldValueFrequencyStatistics<IStatisticsField>(0);
}
var index = IndexHelper.GetIndex(content.Id) as IStatisticsIndex;
if(index == null)
{
return new FieldValueFrequencyStatistics<IStatisticsField>(0);
}
var statistics = index.GetFieldValueFrequencyStatistics(fieldNames);
// the statistics are indexed by field.FormSafeName - we need to reindex them by
// the fields themselves to support the frontend rendering
var result = new FieldValueFrequencyStatistics<IStatisticsField>(statistics.TotalRows);
foreach(var fieldValueFrequency in statistics.FieldValueFrequencies)
{
var field = fields.FirstOrDefault(f => f.FormSafeName == fieldValueFrequency.Field);
if(field == null)
{
continue;
}
result.Add(field, fieldValueFrequency.Frequencies);
}
return result;
}
public FieldValueFrequencyStatistics<string> GetFieldValueFrequencyStatistics(IEnumerable<string> fieldNames)
{
var reader = GetIndexReader();
var result = new FieldValueFrequencyStatistics<string>(reader.NumDocs());
foreach (var fieldName in fieldNames)
{
var fieldValueFrequencies = new List<FieldValueFrequency>();
var stats = new TermRangeTermEnum(reader, FieldNameForStatistics(fieldName), null, null, true, true, null);
if (stats.Term() != null)
{
do
{
fieldValueFrequencies.Add(new FieldValueFrequency(stats.Term().Text(), stats.DocFreq()));
}
while (stats.Next());
}
if (fieldValueFrequencies.Any())
{
result.Add(fieldName, fieldValueFrequencies);
}
}
reader.Close();
return result;
}