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113 lines
3.1 KiB
113 lines
3.1 KiB
/* |
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Copyright 2014 The Kubernetes Authors. |
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Licensed under the Apache License, Version 2.0 (the "License"); |
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you may not use this file except in compliance with the License. |
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You may obtain a copy of the License at |
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http://www.apache.org/licenses/LICENSE-2.0 |
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Unless required by applicable law or agreed to in writing, software |
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distributed under the License is distributed on an "AS IS" BASIS, |
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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See the License for the specific language governing permissions and |
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limitations under the License. |
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*/ |
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// Defines conversions between generic types and structs to map query strings |
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// to struct objects. |
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package runtime |
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import ( |
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"fmt" |
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"reflect" |
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"strconv" |
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"strings" |
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"k8s.io/apimachinery/pkg/conversion" |
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) |
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// DefaultFieldSelectorConversion auto-accepts metav1 values for name and namespace. |
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// A cluster scoped resource specifying namespace empty works fine and specifying a particular |
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// namespace will return no results, as expected. |
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func DefaultMetaV1FieldSelectorConversion(label, value string) (string, string, error) { |
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switch label { |
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case "metadata.name": |
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return label, value, nil |
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case "metadata.namespace": |
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return label, value, nil |
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default: |
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return "", "", fmt.Errorf("%q is not a known field selector: only %q, %q", label, "metadata.name", "metadata.namespace") |
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} |
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} |
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// JSONKeyMapper uses the struct tags on a conversion to determine the key value for |
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// the other side. Use when mapping from a map[string]* to a struct or vice versa. |
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func JSONKeyMapper(key string, sourceTag, destTag reflect.StructTag) (string, string) { |
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if s := destTag.Get("json"); len(s) > 0 { |
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return strings.SplitN(s, ",", 2)[0], key |
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} |
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if s := sourceTag.Get("json"); len(s) > 0 { |
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return key, strings.SplitN(s, ",", 2)[0] |
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} |
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return key, key |
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} |
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// DefaultStringConversions are helpers for converting []string and string to real values. |
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var DefaultStringConversions = []interface{}{ |
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Convert_Slice_string_To_string, |
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Convert_Slice_string_To_int, |
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Convert_Slice_string_To_bool, |
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Convert_Slice_string_To_int64, |
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} |
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func Convert_Slice_string_To_string(input *[]string, out *string, s conversion.Scope) error { |
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if len(*input) == 0 { |
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*out = "" |
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} |
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*out = (*input)[0] |
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return nil |
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} |
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func Convert_Slice_string_To_int(input *[]string, out *int, s conversion.Scope) error { |
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if len(*input) == 0 { |
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*out = 0 |
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} |
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str := (*input)[0] |
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i, err := strconv.Atoi(str) |
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if err != nil { |
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return err |
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} |
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*out = i |
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return nil |
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} |
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// Conver_Slice_string_To_bool will convert a string parameter to boolean. |
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// Only the absence of a value, a value of "false", or a value of "0" resolve to false. |
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// Any other value (including empty string) resolves to true. |
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func Convert_Slice_string_To_bool(input *[]string, out *bool, s conversion.Scope) error { |
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if len(*input) == 0 { |
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*out = false |
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return nil |
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} |
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switch strings.ToLower((*input)[0]) { |
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case "false", "0": |
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*out = false |
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default: |
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*out = true |
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} |
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return nil |
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} |
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func Convert_Slice_string_To_int64(input *[]string, out *int64, s conversion.Scope) error { |
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if len(*input) == 0 { |
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*out = 0 |
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} |
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str := (*input)[0] |
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i, err := strconv.ParseInt(str, 10, 64) |
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if err != nil { |
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return err |
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} |
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*out = i |
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return nil |
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}
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