mirror of
https://github.com/gravitational/teleport.git
synced 2026-09-24 16:17:11 +08:00
58 lines
1.6 KiB
Go
58 lines
1.6 KiB
Go
/*
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Copyright 2015 Gravitational, Inc.
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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 utils
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import (
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"encoding/json"
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"github.com/gravitational/configure/jsonschema"
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"github.com/gravitational/trace"
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)
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// UnmarshalWithSchema processes YAML or JSON encoded object with JSON schema, sets defaults
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// and unmarshals resulting object into given struct
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func UnmarshalWithSchema(schemaDefinition string, object interface{}, data []byte) error {
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schema, err := jsonschema.New([]byte(schemaDefinition))
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if err != nil {
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return trace.Wrap(err)
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}
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jsonData, err := ToJSON(data)
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if err != nil {
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return trace.Wrap(err)
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}
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raw := map[string]interface{}{}
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if err := json.Unmarshal(jsonData, &raw); err != nil {
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return trace.Wrap(err)
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}
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// schema will check format and set defaults
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processed, err := schema.ProcessObject(raw)
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if err != nil {
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return trace.Wrap(err)
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}
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// since ProcessObject works with unstructured data, the
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// data needs to be re-interpreted in structured form
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bytes, err := json.Marshal(processed)
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if err != nil {
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return trace.Wrap(err)
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}
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if err := json.Unmarshal(bytes, object); err != nil {
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return trace.Wrap(err)
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}
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return nil
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}
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