/
interceptor.go
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/
interceptor.go
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//
// Copyright (C) 2019-2020 Vdaas.org Vald team ( kpango, rinx, kmrmt )
//
// 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
//
// https://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 grpc provides generic functionality for grpc
package grpc
import (
"context"
"github.com/vdaas/vald/internal/safety"
"google.golang.org/grpc"
)
type UnaryServerInterceptor = grpc.UnaryServerInterceptor
type StreamServerInterceptor = grpc.StreamServerInterceptor
var (
UnaryInterceptor = grpc.UnaryInterceptor
ChainUnaryInterceptor = grpc.ChainUnaryInterceptor
StreamInterceptor = grpc.StreamInterceptor
ChainStreamInterceptor = grpc.ChainStreamInterceptor
)
func RecoverInterceptor() UnaryServerInterceptor {
return func(
ctx context.Context,
req interface{},
info *grpc.UnaryServerInfo,
handler grpc.UnaryHandler,
) (resp interface{}, err error) {
err = safety.RecoverWithoutPanicFunc(func() (err error) {
resp, err = handler(ctx, req)
return err
})()
return resp, err
}
}
func RecoverStreamInterceptor() StreamServerInterceptor {
return func(
srv interface{},
ss grpc.ServerStream,
info *grpc.StreamServerInfo,
handler grpc.StreamHandler,
) error {
return safety.RecoverWithoutPanicFunc(func() (err error) {
return handler(srv, ss)
})()
}
}