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converter-type.go
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/
converter-type.go
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package picker
import (
"fmt"
"strings"
"github.com/vesoft-inc/nebula-importer/v3/pkg/utils"
)
var (
_ Converter = TypeBoolConverter{}
_ Converter = TypeIntConverter{}
_ Converter = TypeFloatConverter{}
_ Converter = TypeDoubleConverter{}
_ Converter = TypeStringConverter{}
_ Converter = TypeDateConverter{}
_ Converter = TypeTimeConverter{}
_ Converter = TypeDatetimeConverter{}
_ Converter = TypeTimestampConverter{}
_ Converter = TypeGeoConverter{}
_ Converter = TypeGeoPointConverter{}
_ Converter = TypeGeoLineStringConverter{}
_ Converter = TypeGeoPolygonConverter{}
)
type (
TypeBoolConverter = NonConverter
TypeIntConverter = NonConverter
TypeFloatConverter = NonConverter
TypeDoubleConverter = NonConverter
TypeStringConverter struct{}
TypeDateConverter = FunctionStringConverter
TypeTimeConverter = FunctionStringConverter
TypeDatetimeConverter = FunctionStringConverter
TypeTimestampConverter struct {
fc FunctionConverter
fsc FunctionStringConverter
}
TypeGeoConverter = FunctionStringConverter
TypeGeoPointConverter = FunctionStringConverter
TypeGeoLineStringConverter = FunctionStringConverter
TypeGeoPolygonConverter = FunctionStringConverter
)
func NewTypeConverter(t string) Converter {
switch strings.ToUpper(t) {
case "BOOL":
return TypeBoolConverter{}
case "INT":
return TypeIntConverter{}
case "FLOAT":
return TypeFloatConverter{}
case "DOUBLE":
return TypeDoubleConverter{}
case "STRING":
return TypeStringConverter{}
case "DATE":
return TypeDateConverter{
Name: "DATE",
}
case "TIME":
return TypeTimeConverter{
Name: "TIME",
}
case "DATETIME":
return TypeDatetimeConverter{
Name: "DATETIME",
}
case "TIMESTAMP":
return TypeTimestampConverter{
fc: FunctionConverter{
Name: "TIMESTAMP",
},
fsc: FunctionStringConverter{
Name: "TIMESTAMP",
},
}
case "GEOGRAPHY":
return TypeGeoConverter{
Name: "ST_GeogFromText",
}
case "GEOGRAPHY(POINT)":
return TypeGeoPointConverter{
Name: "ST_GeogFromText",
}
case "GEOGRAPHY(LINESTRING)":
return TypeGeoLineStringConverter{
Name: "ST_GeogFromText",
}
case "GEOGRAPHY(POLYGON)":
return TypeGeoPolygonConverter{
Name: "ST_GeogFromText",
}
}
return ErrorConverter{
Err: fmt.Errorf("unsupported type %s", t),
}
}
func (tc TypeStringConverter) Convert(v *Value) (*Value, error) {
v.Val = fmt.Sprintf("%q", v.Val)
return v, nil
}
func (tc TypeTimestampConverter) Convert(v *Value) (*Value, error) {
if utils.IsUnsignedInteger(v.Val) {
return tc.fc.Convert(v)
}
return tc.fsc.Convert(v)
}