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// Copyright (c) The go-grpc-middleware Authors.
// Licensed under the Apache License 2.0.
package validator
import (
"context"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
// The validateAller interface at protoc-gen-validate main branch.
// See https://github.com/envoyproxy/protoc-gen-validate/pull/468.
type validateAller interface {
ValidateAll() error
}
// The validate interface starting with protoc-gen-validate v0.6.0.
// See https://github.com/envoyproxy/protoc-gen-validate/pull/455.
type validator interface {
Validate(all bool) error
}
// The validate interface prior to protoc-gen-validate v0.6.0.
type validatorLegacy interface {
Validate() error
}
func validate(ctx context.Context, reqOrRes interface{}, shouldFailFast bool, onValidationErrCallback OnValidationErrCallback) (err error) {
if shouldFailFast {
switch v := reqOrRes.(type) {
case validatorLegacy:
err = v.Validate()
case validator:
err = v.Validate(false)
}
} else {
switch v := reqOrRes.(type) {
case validateAller:
err = v.ValidateAll()
case validator:
err = v.Validate(true)
case validatorLegacy:
err = v.Validate()
}
}
if err == nil {
return nil
}
if onValidationErrCallback != nil {
onValidationErrCallback(ctx, err)
}
return status.Error(codes.InvalidArgument, err.Error())
}
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