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package rpc
import (
"fmt"
"github.com/hyperledger/burrow/logging"
"github.com/hyperledger/burrow/logging/structure"
"golang.org/x/net/context"
"google.golang.org/grpc"
)
func NewGRPCServer(logger *logging.Logger) *grpc.Server {
return grpc.NewServer(grpc.UnaryInterceptor(unaryInterceptor(logger)),
grpc.StreamInterceptor(streamInterceptor(logger.WithScope("NewGRPCServer"))))
}
func unaryInterceptor(logger *logging.Logger) grpc.UnaryServerInterceptor {
return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo,
handler grpc.UnaryHandler) (resp interface{}, err error) {
defer func() {
if r := recover(); r != nil {
logger.InfoMsg("panic in GRPC unary call", "method", info.FullMethod,
structure.ErrorKey, fmt.Sprintf("%v", r))
err = fmt.Errorf("panic in GRPC unary call %s: %v", info.FullMethod, r)
}
}()
return handler(ctx, req)
}
}
func streamInterceptor(logger *logging.Logger) grpc.StreamServerInterceptor {
return func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo,
handler grpc.StreamHandler) (err error) {
defer func() {
if r := recover(); r != nil {
logger.InfoMsg("panic in GRPC stream", "method", info.FullMethod,
"is_client_stream", info.IsClientStream, "is_server_stream", info.IsServerStream,
structure.ErrorKey, fmt.Sprintf("%v", r))
err = fmt.Errorf("panic in GRPC stream %s: %v", info.FullMethod, r)
}
}()
return handler(srv, ss)
}
}