/// <summary>
/// 查询单字条目。
/// </summary>
private IEnumerable <Document> QueryMonoHanzi(string query, SortByMethod sortBy)
{
var matchedDocuments = _indexHolder.GetIndex().Documents
.Where(d =>
GetHanzi(d.HanziCanonical) == query ||
d.HanziAlternatives.Where(
r => GetHanzi(r) == query).Count() > 0 ||
d.HanziMatchable.IndexOf(query) >= 0
);
IEnumerable <Document> sorted;
switch (sortBy)
{
case SortByMethod.InitialFinalTone:
sorted = matchedDocuments.OrderBy(d => d.Final)
.ThenBy(d => d.Initial)
.ThenBy(d => d.Tone);
break;
case SortByMethod.SortByUnspecified:
default:
sorted = matchedDocuments;
break;
}
return(sorted);
}
private IEnumerable <Document> QueryByPhonology(PhonologyQuery query, SortByMethod sortBy)
{
Initial initial = query.Initial;
Final final = query.Final;
Tone tone = query.Tone;
if (initial == Initial.Unspecified &&
final == Final.Unspecified &&
tone == Tone.Unspecified)
{
throw new Exception("Cannot all be unspecified");
}
// Filter
var documents = _indexHolder.GetIndex().Documents.Where(_ => true);
if (initial != Initial.Unspecified)
{
documents = documents.Where(d => d.Initial == initial);
}
if (final != Final.Unspecified)
{
documents = documents.Where(d => d.Final == final);
}
if (tone != Tone.Unspecified)
{
documents = documents.Where(d => d.Tone == tone);
}
var matchedDocuments = documents;
// Sort
IEnumerable <Document> sorted;
switch (sortBy)
{
case SortByMethod.InitialFinalTone:
sorted = matchedDocuments.OrderBy(d => d.Final)
.ThenBy(d => d.Initial)
.ThenBy(d => d.Tone);
break;
case SortByMethod.SortByUnspecified:
default:
sorted = matchedDocuments;
break;
}
return(sorted);
}
