micro/config/source/consul/util.go

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2019-05-31 01:11:13 +03:00
package consul
import (
"fmt"
"strings"
"github.com/hashicorp/consul/api"
"github.com/micro/go-micro/config/encoder"
)
func makeMap(e encoder.Encoder, kv api.KVPairs, stripPrefix string) (map[string]interface{}, error) {
data := make(map[string]interface{})
// consul guarantees lexicographic order, so no need to sort
for _, v := range kv {
pathString := strings.TrimPrefix(strings.TrimPrefix(v.Key, strings.TrimPrefix(stripPrefix, "/")), "/")
2019-05-31 01:11:13 +03:00
var val map[string]interface{}
// ensure a valid value is stored at this location
if len(v.Value) > 0 {
if err := e.Decode(v.Value, &val); err != nil {
return nil, fmt.Errorf("faild decode value. path: %s, error: %s", pathString, err)
}
}
// set target at the root
target := data
// then descend to the target location, creating as we go, if need be
if pathString != "" {
path := strings.Split(pathString, "/")
// find (or create) the location we want to put this value at
for _, dir := range path {
if _, ok := target[dir]; !ok {
target[dir] = make(map[string]interface{})
}
target = target[dir].(map[string]interface{})
}
}
// copy over the keys from the value
for k := range val {
target[k] = val[k]
}
}
return data, nil
}