/
meta.go
42 lines (35 loc) · 887 Bytes
/
meta.go
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package types
import "strings"
// Metadata represents object metadata
type Metadata map[string][]string
// Len returns the number of items in md.
func (md Metadata) Len() int {
return len(md)
}
// Has returns true if metadata has given key
func (md Metadata) Has(k string) bool {
k = strings.ToLower(k)
_, ok := md[k]
return ok
}
// Get obtains the values for a given key.
func (md Metadata) Get(k string) []string {
k = strings.ToLower(k)
return md[k]
}
// Set sets the value of a given key with a slice of values.
func (md Metadata) Set(k string, vals ...string) {
if len(vals) == 0 {
return
}
k = strings.ToLower(k)
md[k] = vals
}
// Append adds the values to key k, not overwriting what was already stored at that key.
func (md Metadata) Append(k string, vals ...string) {
if len(vals) == 0 {
return
}
k = strings.ToLower(k)
md[k] = append(md[k], vals...)
}