59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
|
// Licensed to Elasticsearch B.V. under one or more contributor
|
||
|
|
// license agreements. See the NOTICE file distributed with
|
||
|
|
// this work for additional information regarding copyright
|
||
|
|
// ownership. Elasticsearch B.V. licenses this file to you under
|
||
|
|
// the Apache License, Version 2.0 (the "License"); you may
|
||
|
|
// not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing,
|
||
|
|
// software distributed under the License is distributed on an
|
||
|
|
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
||
|
|
// KIND, either express or implied. See the License for the
|
||
|
|
// specific language governing permissions and limitations
|
||
|
|
// under the License.
|
||
|
|
|
||
|
|
package conditions
|
||
|
|
|
||
|
|
import "fmt"
|
||
|
|
|
||
|
|
// Fields represents an arbitrary map in a config file.
|
||
|
|
type Fields struct {
|
||
|
|
fields map[string]interface{}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Unpack unpacks nested fields set with dot notation like foo.bar into the proper nesting
|
||
|
|
// in a nested map/slice structure.
|
||
|
|
func (f *Fields) Unpack(to interface{}) error {
|
||
|
|
m, ok := to.(map[string]interface{})
|
||
|
|
if !ok {
|
||
|
|
return fmt.Errorf("wrong type, expect map")
|
||
|
|
}
|
||
|
|
|
||
|
|
f.fields = map[string]interface{}{}
|
||
|
|
|
||
|
|
var expand func(key string, value interface{})
|
||
|
|
|
||
|
|
expand = func(key string, value interface{}) {
|
||
|
|
switch v := value.(type) {
|
||
|
|
case map[string]interface{}:
|
||
|
|
for k, val := range v {
|
||
|
|
expand(fmt.Sprintf("%v.%v", key, k), val)
|
||
|
|
}
|
||
|
|
case []interface{}:
|
||
|
|
for i := range v {
|
||
|
|
expand(fmt.Sprintf("%v.%v", key, i), v[i])
|
||
|
|
}
|
||
|
|
default:
|
||
|
|
f.fields[key] = value
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for k, val := range m {
|
||
|
|
expand(k, val)
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|