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// Copyright 2016 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
package schema
import (
"reflect"
"time"
)
// Time returns a Checker that accepts a string value, and returns
// the parsed time.Time value. Emtpy strings are considered empty times.
func Time() Checker {
return timeC{}
}
type timeC struct{}
// Coerce implements Checker Coerce method.
func (c timeC) Coerce(v interface{}, path []string) (interface{}, error) {
if v == nil {
return nil, error_{"string or time.Time", v, path}
}
var empty time.Time
switch reflect.TypeOf(v).Kind() {
case reflect.TypeOf(empty).Kind():
return v, nil
case reflect.String:
vstr := reflect.ValueOf(v).String()
if vstr == "" {
return empty, nil
}
v, err := time.Parse(time.RFC3339Nano, vstr)
if err != nil {
return nil, parseError(path, "time", err)
}
return v, nil
default:
return nil, error_{"string or time.Time", v, path}
}
}
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