/// <summary>
/// Returns the field value as <see cref="float"/> or <c>0</c> if the type
/// is non-numeric.
/// </summary>
/// <param name="field">This <see cref="IIndexableField"/>.</param>
/// <returns>The field value or <c>0</c> if the type is non-numeric.</returns>
public static float GetSingleValueOrDefault(this IIndexableField field)
{
if (field == null)
{
return(default(float));
}
return(field.GetSingleValue().GetValueOrDefault());
}
public override void WriteField(FieldInfo info, IIndexableField field)
{
fieldsStream.WriteVInt32(info.Number);
int bits = 0;
BytesRef bytes;
string @string;
// TODO: maybe a field should serialize itself?
// this way we don't bake into indexer all these
// specific encodings for different fields? and apps
// can customize...
// LUCENENET specific - To avoid boxing/unboxing, we don't
// call GetNumericValue(). Instead, we check the field.NumericType and then
// call the appropriate conversion method.
if (field.NumericType != NumericFieldType.NONE)
{
switch (field.NumericType)
{
case NumericFieldType.BYTE:
case NumericFieldType.INT16:
case NumericFieldType.INT32:
bits |= FIELD_IS_NUMERIC_INT;
break;
case NumericFieldType.INT64:
bits |= FIELD_IS_NUMERIC_LONG;
break;
case NumericFieldType.SINGLE:
bits |= FIELD_IS_NUMERIC_FLOAT;
break;
case NumericFieldType.DOUBLE:
bits |= FIELD_IS_NUMERIC_DOUBLE;
break;
default:
throw new ArgumentException("cannot store numeric type " + field.NumericType);
}
@string = null;
bytes = null;
}
else
{
bytes = field.GetBinaryValue();
if (bytes != null)
{
bits |= FIELD_IS_BINARY;
@string = null;
}
else
{
@string = field.GetStringValue();
if (@string == null)
{
throw new ArgumentException("field " + field.Name + " is stored but does not have binaryValue, stringValue nor numericValue");
}
}
}
fieldsStream.WriteByte((byte)(sbyte)bits);
if (bytes != null)
{
fieldsStream.WriteVInt32(bytes.Length);
fieldsStream.WriteBytes(bytes.Bytes, bytes.Offset, bytes.Length);
}
else if (@string != null)
{
fieldsStream.WriteString(field.GetStringValue());
}
else
{
switch (field.NumericType)
{
case NumericFieldType.BYTE:
case NumericFieldType.INT16:
case NumericFieldType.INT32:
fieldsStream.WriteInt32(field.GetInt32Value().Value);
break;
case NumericFieldType.INT64:
fieldsStream.WriteInt64(field.GetInt64Value().Value);
break;
case NumericFieldType.SINGLE:
fieldsStream.WriteInt32(BitConversion.SingleToInt32Bits(field.GetSingleValue().Value));
break;
case NumericFieldType.DOUBLE:
fieldsStream.WriteInt64(BitConversion.DoubleToInt64Bits(field.GetDoubleValue().Value));
break;
default:
throw new InvalidOperationException("Cannot get here");
}
}
}
public override void WriteField(FieldInfo info, IIndexableField field)
{
int bits /* = 0*/; // LUCENENET: IDE0059: Remove unnecessary value assignment
BytesRef bytes;
string @string;
// LUCENENET specific - To avoid boxing/unboxing, we don't
// call GetNumericValue(). Instead, we check the field.NumericType and then
// call the appropriate conversion method.
if (field.NumericType != NumericFieldType.NONE)
{
switch (field.NumericType)
{
case NumericFieldType.BYTE:
case NumericFieldType.INT16:
case NumericFieldType.INT32:
bits = NUMERIC_INT32;
break;
case NumericFieldType.INT64:
bits = NUMERIC_INT64;
break;
case NumericFieldType.SINGLE:
bits = NUMERIC_SINGLE;
break;
case NumericFieldType.DOUBLE:
bits = NUMERIC_DOUBLE;
break;
default:
throw new ArgumentException("cannot store numeric type " + field.NumericType);
}
@string = null;
bytes = null;
}
else
{
bytes = field.GetBinaryValue();
if (bytes != null)
{
bits = BYTE_ARR;
@string = null;
}
else
{
bits = STRING;
@string = field.GetStringValue();
if (@string == null)
{
throw new ArgumentException("field " + field.Name + " is stored but does not have BinaryValue, StringValue nor NumericValue");
}
}
}
long infoAndBits = (((long)info.Number) << TYPE_BITS) | (uint)bits;
bufferedDocs.WriteVInt64(infoAndBits);
if (bytes != null)
{
bufferedDocs.WriteVInt32(bytes.Length);
bufferedDocs.WriteBytes(bytes.Bytes, bytes.Offset, bytes.Length);
}
else if (@string != null)
{
bufferedDocs.WriteString(field.GetStringValue());
}
else
{
switch (field.NumericType)
{
case NumericFieldType.BYTE:
case NumericFieldType.INT16:
case NumericFieldType.INT32:
bufferedDocs.WriteInt32(field.GetInt32Value().Value);
break;
case NumericFieldType.INT64:
bufferedDocs.WriteInt64(field.GetInt64Value().Value);
break;
case NumericFieldType.SINGLE:
bufferedDocs.WriteInt32(BitConversion.SingleToInt32Bits(field.GetSingleValue().Value));
break;
case NumericFieldType.DOUBLE:
bufferedDocs.WriteInt64(BitConversion.DoubleToInt64Bits(field.GetDoubleValue().Value));
break;
default:
throw AssertionError.Create("Cannot get here");
}
}
}