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package app
import (
"errors"
"fmt"
"net/url"
"strings"
"github.com/mesos/mesos-go/api/v1/lib"
"github.com/mesos/mesos-go/api/v1/lib/encoding"
"github.com/mesos/mesos-go/api/v1/lib/encoding/codecs"
)
var (
errZeroLengthLabelKey = errors.New("zero-length label key")
)
type URL struct{ url.URL }
func (u *URL) Set(value string) error {
parsed, err := url.Parse(value)
if err != nil {
return err
}
u.URL = *parsed
return nil
}
type codec struct{ encoding.Codec }
func (c *codec) Set(value string) error {
v := strings.ToLower(value)
for _, codec := range codecs.ByMediaType {
if v == codec.Name {
c.Codec = codec
return nil
}
}
return fmt.Errorf("bad codec %q", value)
}
type Labels []mesos.Label
func (labels *Labels) Set(value string) error {
set := func(k, v string) {
var val *string
if v != "" {
val = &v
}
*labels = append(*labels, mesos.Label{
Key: k,
Value: val,
})
}
e := strings.IndexRune(value, '=')
c := strings.IndexRune(value, ':')
if e != -1 && e < c {
if e == 0 {
return errZeroLengthLabelKey
}
set(value[:e], value[e+1:])
} else if c != -1 && c < e {
if c == 0 {
return errZeroLengthLabelKey
}
set(value[:c], value[c+1:])
} else if e != -1 {
if e == 0 {
return errZeroLengthLabelKey
}
set(value[:e], value[e+1:])
} else if c != -1 {
if c == 0 {
return errZeroLengthLabelKey
}
set(value[:c], value[c+1:])
} else if value != "" {
set(value, "")
}
return nil
}
func (labels Labels) String() string {
// super inefficient, but it's only for occassional debugging
s := ""
valueString := func(v *string) string {
if v == nil {
return ""
}
return ":" + *v
}
for _, x := range labels {
if s != "" {
s += ","
}
s += x.Key + valueString(x.Value)
}
return s
}
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