public IEnumerable <StringField> DomainGetField(SubjectGroup subjectGroup)
{
var subjectId = subjectGroup.Id.ToInt();
return(DomainDictionary.ContainsKey(subjectId)
? DomainDictionary[subjectId].Select(x =>
new StringField(Labels.DomainType.ToString(), x.ToString(), Field.Store.YES))
: new List <StringField>());
}
public void Index()
{
var indexConfig = LuceneIndexDefaults.CreateStandardIndexWriterConfig();
long readCount = 0;
// Read All lines in the file (IEnumerable, yield)
// And group them by QCode.
var subjectGroups = FileHelper.GetInputLines(InputFilename).GroupBySubject();
using var luceneDirectory = FSDirectory.Open(EntitiesIndexPath);
using var luceneDirectoryReader = DirectoryReader.Open(luceneDirectory);
var docCount = luceneDirectoryReader.MaxDoc;
for (var i = 0; i < docCount; i++)
{
var doc = luceneDirectoryReader.Document(i);
var entity = doc.MapEntity();
var reverseProperties = entity.ReverseProperties.Select(x => x.Id.ToInt()).ToList();
var properties = entity.Properties.Select(x => x.Id.ToInt()).ToList();
//TODO: Use constant:
var otherProperties = properties.Where(x => !x.Equals(31)).ToList();
var types = entity.ParentTypes.Select(x => x.ToInt()).ToList();
var isType = entity.IsType;
//Range
//TODO: Use constant:
//if (isType)
RangeDictionary.AddSafe(31, types);
foreach (var reversePropertyId in reverseProperties)
{
RangeDictionary.AddSafe(reversePropertyId, types);
}
//Domain
DomainDictionary.AddSafe(31, types);
foreach (var propertyId in otherProperties)
{
DomainDictionary.AddSafe(propertyId, types);
}
//Frequency
foreach (var propertyIntId in properties)
{
if (!FrequencyHashTable.ContainsKey(propertyIntId))
{
FrequencyHashTable.Add(propertyIntId, 0);
}
FrequencyHashTable[propertyIntId] = (int)FrequencyHashTable[propertyIntId] + 1;
}
LogMessage(readCount++, "Frequency, Domain, Range", false);
}
LogMessage(readCount, "Frequency, Domain, Range");
readCount = 0;
using (var indexDirectory = FSDirectory.Open(OutputDirectory.GetOrCreateDirectory()))
{
using var writer = new IndexWriter(indexDirectory, indexConfig);
foreach (var subjectGroup in subjectGroups.Where(FilterGroups))
{
var document = new Document();
foreach (var field in FrequencyGetField(subjectGroup))
{
document.Add(field);
}
foreach (var field in DomainGetField(subjectGroup))
{
document.Add(field);
}
foreach (var field in RangeGetField(subjectGroup))
{
document.Add(field);
}
var boostField = document.Fields.FirstOrDefault(x => x.Name.Equals(Labels.Rank.ToString()));
var boost = 0.0;
if (boostField != null)
{
boost = (double)boostField.GetDoubleValue();
}
foreach (var fieldIndexer in FieldIndexers)
{
fieldIndexer.Boost = boost;
}
foreach (var fieldIndexer in FieldIndexers)
{
foreach (var field in fieldIndexer.GetField(subjectGroup))
{
document.Add(field);
}
}
LogProgress(readCount++);
writer.AddDocument(document);
}
}
LogProgress(readCount, true);
}