/
bundledschemalocator.go
52 lines (45 loc) · 1.67 KB
/
bundledschemalocator.go
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// Copyright Axis Communications AB.
//
// For a full list of individual contributors, please see the commit history.
//
// 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 validator
import (
"bytes"
"context"
"embed"
"errors"
"fmt"
"io"
"io/fs"
"path/filepath"
)
//go:generate go run ./../internal/cmd/dirsync ../protocol/schemas/ ./schemas
//go:embed schemas
var schemas embed.FS
// BundledSchemaLocator locates schemas from those built into the binary via this package.
type BundledSchemaLocator struct{}
func NewBundledSchemaLocator() *BundledSchemaLocator {
return &BundledSchemaLocator{}
}
// GetSchema returns the event's schema from the built-in official set of schemas.
// Returns (nil, nil) if no schema was found for the provided event type and version.
func (bsl *BundledSchemaLocator) GetSchema(ctx context.Context, eventType string, version string, schemaURI string) (io.ReadCloser, error) {
schema, err := schemas.ReadFile(filepath.Join("schemas", eventType, version+".json"))
if errors.Is(err, fs.ErrNotExist) {
return nil, nil
} else if err != nil {
return nil, fmt.Errorf("error reading schema: %w", err)
}
return io.NopCloser(bytes.NewReader(schema)), nil
}