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63 lines
2.2 KiB
63 lines
2.2 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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package json |
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import ( |
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"encoding/json" |
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"fmt" |
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"k8s.io/apimachinery/pkg/runtime/schema" |
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) |
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// MetaFactory is used to store and retrieve the version and kind |
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// information for JSON objects in a serializer. |
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type MetaFactory interface { |
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// Interpret should return the version and kind of the wire-format of |
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// the object. |
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Interpret(data []byte) (*schema.GroupVersionKind, error) |
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} |
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// DefaultMetaFactory is a default factory for versioning objects in JSON. The object |
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// in memory and in the default JSON serialization will use the "kind" and "apiVersion" |
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// fields. |
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var DefaultMetaFactory = SimpleMetaFactory{} |
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// SimpleMetaFactory provides default methods for retrieving the type and version of objects |
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// that are identified with an "apiVersion" and "kind" fields in their JSON |
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// serialization. It may be parameterized with the names of the fields in memory, or an |
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// optional list of base structs to search for those fields in memory. |
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type SimpleMetaFactory struct { |
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} |
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// Interpret will return the APIVersion and Kind of the JSON wire-format |
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// encoding of an object, or an error. |
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func (SimpleMetaFactory) Interpret(data []byte) (*schema.GroupVersionKind, error) { |
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findKind := struct { |
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// +optional |
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APIVersion string `json:"apiVersion,omitempty"` |
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// +optional |
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Kind string `json:"kind,omitempty"` |
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}{} |
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if err := json.Unmarshal(data, &findKind); err != nil { |
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return nil, fmt.Errorf("couldn't get version/kind; json parse error: %v", err) |
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} |
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gv, err := schema.ParseGroupVersion(findKind.APIVersion) |
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if err != nil { |
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return nil, err |
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} |
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return &schema.GroupVersionKind{Group: gv.Group, Version: gv.Version, Kind: findKind.Kind}, nil |
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}
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