Import of https://github.com/ciena/voltctl at commit 40d61fbf3f910ed4017cf67c9c79e8e1f82a33a5
Change-Id: I8464c59e60d76cb8612891db3303878975b5416c
diff --git a/vendor/github.com/googleapis/gnostic/compiler/helpers.go b/vendor/github.com/googleapis/gnostic/compiler/helpers.go
new file mode 100644
index 0000000..76df635
--- /dev/null
+++ b/vendor/github.com/googleapis/gnostic/compiler/helpers.go
@@ -0,0 +1,197 @@
+// Copyright 2017 Google Inc. All Rights Reserved.
+//
+// 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 compiler
+
+import (
+ "fmt"
+ "gopkg.in/yaml.v2"
+ "regexp"
+ "sort"
+ "strconv"
+)
+
+// compiler helper functions, usually called from generated code
+
+// UnpackMap gets a yaml.MapSlice if possible.
+func UnpackMap(in interface{}) (yaml.MapSlice, bool) {
+ m, ok := in.(yaml.MapSlice)
+ if ok {
+ return m, true
+ }
+ // do we have an empty array?
+ a, ok := in.([]interface{})
+ if ok && len(a) == 0 {
+ // if so, return an empty map
+ return yaml.MapSlice{}, true
+ }
+ return nil, false
+}
+
+// SortedKeysForMap returns the sorted keys of a yaml.MapSlice.
+func SortedKeysForMap(m yaml.MapSlice) []string {
+ keys := make([]string, 0)
+ for _, item := range m {
+ keys = append(keys, item.Key.(string))
+ }
+ sort.Strings(keys)
+ return keys
+}
+
+// MapHasKey returns true if a yaml.MapSlice contains a specified key.
+func MapHasKey(m yaml.MapSlice, key string) bool {
+ for _, item := range m {
+ itemKey, ok := item.Key.(string)
+ if ok && key == itemKey {
+ return true
+ }
+ }
+ return false
+}
+
+// MapValueForKey gets the value of a map value for a specified key.
+func MapValueForKey(m yaml.MapSlice, key string) interface{} {
+ for _, item := range m {
+ itemKey, ok := item.Key.(string)
+ if ok && key == itemKey {
+ return item.Value
+ }
+ }
+ return nil
+}
+
+// ConvertInterfaceArrayToStringArray converts an array of interfaces to an array of strings, if possible.
+func ConvertInterfaceArrayToStringArray(interfaceArray []interface{}) []string {
+ stringArray := make([]string, 0)
+ for _, item := range interfaceArray {
+ v, ok := item.(string)
+ if ok {
+ stringArray = append(stringArray, v)
+ }
+ }
+ return stringArray
+}
+
+// MissingKeysInMap identifies which keys from a list of required keys are not in a map.
+func MissingKeysInMap(m yaml.MapSlice, requiredKeys []string) []string {
+ missingKeys := make([]string, 0)
+ for _, k := range requiredKeys {
+ if !MapHasKey(m, k) {
+ missingKeys = append(missingKeys, k)
+ }
+ }
+ return missingKeys
+}
+
+// InvalidKeysInMap returns keys in a map that don't match a list of allowed keys and patterns.
+func InvalidKeysInMap(m yaml.MapSlice, allowedKeys []string, allowedPatterns []*regexp.Regexp) []string {
+ invalidKeys := make([]string, 0)
+ for _, item := range m {
+ itemKey, ok := item.Key.(string)
+ if ok {
+ key := itemKey
+ found := false
+ // does the key match an allowed key?
+ for _, allowedKey := range allowedKeys {
+ if key == allowedKey {
+ found = true
+ break
+ }
+ }
+ if !found {
+ // does the key match an allowed pattern?
+ for _, allowedPattern := range allowedPatterns {
+ if allowedPattern.MatchString(key) {
+ found = true
+ break
+ }
+ }
+ if !found {
+ invalidKeys = append(invalidKeys, key)
+ }
+ }
+ }
+ }
+ return invalidKeys
+}
+
+// DescribeMap describes a map (for debugging purposes).
+func DescribeMap(in interface{}, indent string) string {
+ description := ""
+ m, ok := in.(map[string]interface{})
+ if ok {
+ keys := make([]string, 0)
+ for k := range m {
+ keys = append(keys, k)
+ }
+ sort.Strings(keys)
+ for _, k := range keys {
+ v := m[k]
+ description += fmt.Sprintf("%s%s:\n", indent, k)
+ description += DescribeMap(v, indent+" ")
+ }
+ return description
+ }
+ a, ok := in.([]interface{})
+ if ok {
+ for i, v := range a {
+ description += fmt.Sprintf("%s%d:\n", indent, i)
+ description += DescribeMap(v, indent+" ")
+ }
+ return description
+ }
+ description += fmt.Sprintf("%s%+v\n", indent, in)
+ return description
+}
+
+// PluralProperties returns the string "properties" pluralized.
+func PluralProperties(count int) string {
+ if count == 1 {
+ return "property"
+ }
+ return "properties"
+}
+
+// StringArrayContainsValue returns true if a string array contains a specified value.
+func StringArrayContainsValue(array []string, value string) bool {
+ for _, item := range array {
+ if item == value {
+ return true
+ }
+ }
+ return false
+}
+
+// StringArrayContainsValues returns true if a string array contains all of a list of specified values.
+func StringArrayContainsValues(array []string, values []string) bool {
+ for _, value := range values {
+ if !StringArrayContainsValue(array, value) {
+ return false
+ }
+ }
+ return true
+}
+
+// StringValue returns the string value of an item.
+func StringValue(item interface{}) (value string, ok bool) {
+ value, ok = item.(string)
+ if ok {
+ return value, ok
+ }
+ intValue, ok := item.(int)
+ if ok {
+ return strconv.Itoa(intValue), true
+ }
+ return "", false
+}