mirror of
https://github.com/googleapis/genai-toolbox.git
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95d29f9e8a
Passing logger via context. With this, we will be able to add logs during the unmarshaling process.
67 lines
1.8 KiB
Go
67 lines
1.8 KiB
Go
// Copyright 2025 Google LLC
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package util
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import (
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"bytes"
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"context"
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"fmt"
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"github.com/go-playground/validator/v10"
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yaml "github.com/goccy/go-yaml"
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)
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var _ yaml.InterfaceUnmarshalerContext = &DelayedUnmarshaler{}
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// DelayedUnmarshaler is struct that saves the provided unmarshal function
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// passed to UnmarshalYAML so it can be re-used later once the target interface
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// is known.
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type DelayedUnmarshaler struct {
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unmarshal func(interface{}) error
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}
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func (d *DelayedUnmarshaler) UnmarshalYAML(ctx context.Context, unmarshal func(interface{}) error) error {
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d.unmarshal = unmarshal
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return nil
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}
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func (d *DelayedUnmarshaler) Unmarshal(v interface{}) error {
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if d.unmarshal == nil {
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return fmt.Errorf("nothing to unmarshal")
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}
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return d.unmarshal(v)
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}
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type contextKey string
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// UserAgentKey is the key used to store userAgent within context
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const UserAgentKey contextKey = "userAgent"
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func NewStrictDecoder(v interface{}) (*yaml.Decoder, error) {
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b, err := yaml.Marshal(v)
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if err != nil {
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return nil, fmt.Errorf("fail to marshal %q: %w", v, err)
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}
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dec := yaml.NewDecoder(
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bytes.NewReader(b),
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yaml.Strict(),
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yaml.Validator(validator.New()),
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)
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return dec, nil
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}
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// LoggerKey is the key used to store logger within context
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const LoggerKey contextKey = "logger"
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