/// <summary>
/// Build a <see cref="FieldFragList"/> for one field.
/// </summary>
private FieldFragList GetFieldFragList(IFragListBuilder fragListBuilder,
FieldQuery fieldQuery, IndexReader reader, int docId,
string matchedField, int fragCharSize)
{
FieldTermStack fieldTermStack = new FieldTermStack(reader, docId, matchedField, fieldQuery);
FieldPhraseList fieldPhraseList = new FieldPhraseList(fieldTermStack, fieldQuery, phraseLimit);
return(fragListBuilder.CreateFieldFragList(fieldPhraseList, fragCharSize));
}
/// <summary>
/// Build a <see cref="FieldFragList"/> for more than one field.
/// </summary>
private FieldFragList GetFieldFragList(IFragListBuilder fragListBuilder,
FieldQuery fieldQuery, IndexReader reader, int docId,
ISet <string> matchedFields, int fragCharSize)
{
if (matchedFields.Count == 0)
{
throw new ArgumentException("matchedFields must contain at least on field name.");
}
FieldPhraseList[]
toMerge = new FieldPhraseList[matchedFields.Count];
int i = 0;
foreach (var matchedField in matchedFields)
{
FieldTermStack stack = new FieldTermStack(reader, docId, matchedField, fieldQuery);
toMerge[i++] = new FieldPhraseList(stack, fieldQuery, phraseLimit);
}
return(fragListBuilder.CreateFieldFragList(new FieldPhraseList(toMerge), fragCharSize));
}
/// <summary>
/// Build a <see cref="FieldFragList"/> for more than one field.
/// </summary>
private FieldFragList GetFieldFragList(IFragListBuilder fragListBuilder,
FieldQuery fieldQuery, IndexReader reader, int docId,
ISet <string> matchedFields, int fragCharSize)
{
IEnumerator <string> matchedFieldsItr = matchedFields.GetEnumerator();
if (!matchedFields.Any())
{
throw new ArgumentException("matchedFields must contain at least on field name.");
}
FieldPhraseList[]
toMerge = new FieldPhraseList[matchedFields.Count];
int i = 0;
while (matchedFieldsItr.MoveNext())
{
FieldTermStack stack = new FieldTermStack(reader, docId, matchedFieldsItr.Current, fieldQuery);
toMerge[i++] = new FieldPhraseList(stack, fieldQuery, phraseLimit);
}
return(fragListBuilder.CreateFieldFragList(new FieldPhraseList(toMerge), fragCharSize));
}