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fields.go
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fields.go
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// Copyright 2022 Google LLC
//
// Licensed 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 dcl
import (
"github.com/GoogleCloudPlatform/k8s-config-connector/pkg/util/pathslice"
"github.com/GoogleCloudPlatform/k8s-config-connector/pkg/util/slice"
)
func IsContainerField(path []string) bool {
if len(path) > 1 {
return false
}
field := pathslice.Base(path)
return field == "organization" || field == "project" || field == "folder"
}
// TrimNilFields removes all nil fields in the input object, including
// non-top-level nil fields (e.g. those found in nested objects and nested list
// of objects).
func TrimNilFields(m map[string]interface{}) {
for k, v := range m {
if IsNil(v) {
delete(m, k)
continue
}
switch v := v.(type) {
// If value is an object, trim nil fields in object.
case map[string]interface{}:
TrimNilFields(v)
// If value is a list of objects, trim nil fields in each object.
case []interface{}:
if !slice.IsListOfStringInterfaceMaps(v) {
// List is a list of primitives rather than of objects.
continue
}
for _, e := range v {
TrimNilFields(e.(map[string]interface{}))
}
}
}
}
// An interface value strictly equals to nil only if the V (actual value) and T (type) are both unset;
// we want to treat interface values like (T=[]interface{}, V=nil) as nil too since the actual value is nil.
func IsNil(v interface{}) bool {
if v == nil {
return true
}
switch v := v.(type) {
case []interface{}:
return v == nil
case map[string]interface{}:
return v == nil
}
return false
}
func AddToMap(key string, val interface{}, obj map[string]interface{}) {
if !IsNil(val) {
obj[key] = val
}
}