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error.go
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error.go
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// Copyright 2015 The etcd Authors
//
// 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 rpctypes
import (
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
)
var (
// server-side error
ErrGRPCEmptyKey = grpc.Errorf(codes.InvalidArgument, "etcdserver: key is not provided")
ErrGRPCKeyNotFound = grpc.Errorf(codes.InvalidArgument, "etcdserver: key not found")
ErrGRPCValueProvided = grpc.Errorf(codes.InvalidArgument, "etcdserver: value is provided")
ErrGRPCLeaseProvided = grpc.Errorf(codes.InvalidArgument, "etcdserver: lease is provided")
ErrGRPCTooManyOps = grpc.Errorf(codes.InvalidArgument, "etcdserver: too many operations in txn request")
ErrGRPCDuplicateKey = grpc.Errorf(codes.InvalidArgument, "etcdserver: duplicate key given in txn request")
ErrGRPCCompacted = grpc.Errorf(codes.OutOfRange, "etcdserver: mvcc: required revision has been compacted")
ErrGRPCFutureRev = grpc.Errorf(codes.OutOfRange, "etcdserver: mvcc: required revision is a future revision")
ErrGRPCNoSpace = grpc.Errorf(codes.ResourceExhausted, "etcdserver: mvcc: database space exceeded")
ErrGRPCLeaseNotFound = grpc.Errorf(codes.NotFound, "etcdserver: requested lease not found")
ErrGRPCLeaseExist = grpc.Errorf(codes.FailedPrecondition, "etcdserver: lease already exists")
ErrGRPCMemberExist = grpc.Errorf(codes.FailedPrecondition, "etcdserver: member ID already exist")
ErrGRPCPeerURLExist = grpc.Errorf(codes.FailedPrecondition, "etcdserver: Peer URLs already exists")
ErrGRPCMemberNotEnoughStarted = grpc.Errorf(codes.FailedPrecondition, "etcdserver: re-configuration failed due to not enough started members")
ErrGRPCMemberBadURLs = grpc.Errorf(codes.InvalidArgument, "etcdserver: given member URLs are invalid")
ErrGRPCMemberNotFound = grpc.Errorf(codes.NotFound, "etcdserver: member not found")
ErrGRPCRequestTooLarge = grpc.Errorf(codes.InvalidArgument, "etcdserver: request is too large")
ErrGRPCRequestTooManyRequests = grpc.Errorf(codes.ResourceExhausted, "etcdserver: too many requests")
ErrGRPCRootUserNotExist = grpc.Errorf(codes.FailedPrecondition, "etcdserver: root user does not exist")
ErrGRPCRootRoleNotExist = grpc.Errorf(codes.FailedPrecondition, "etcdserver: root user does not have root role")
ErrGRPCUserAlreadyExist = grpc.Errorf(codes.FailedPrecondition, "etcdserver: user name already exists")
ErrGRPCUserEmpty = grpc.Errorf(codes.InvalidArgument, "etcdserver: user name is empty")
ErrGRPCUserNotFound = grpc.Errorf(codes.FailedPrecondition, "etcdserver: user name not found")
ErrGRPCRoleAlreadyExist = grpc.Errorf(codes.FailedPrecondition, "etcdserver: role name already exists")
ErrGRPCRoleNotFound = grpc.Errorf(codes.FailedPrecondition, "etcdserver: role name not found")
ErrGRPCAuthFailed = grpc.Errorf(codes.InvalidArgument, "etcdserver: authentication failed, invalid user ID or password")
ErrGRPCPermissionDenied = grpc.Errorf(codes.PermissionDenied, "etcdserver: permission denied")
ErrGRPCRoleNotGranted = grpc.Errorf(codes.FailedPrecondition, "etcdserver: role is not granted to the user")
ErrGRPCPermissionNotGranted = grpc.Errorf(codes.FailedPrecondition, "etcdserver: permission is not granted to the role")
ErrGRPCAuthNotEnabled = grpc.Errorf(codes.FailedPrecondition, "etcdserver: authentication is not enabled")
ErrGRPCInvalidAuthToken = grpc.Errorf(codes.Unauthenticated, "etcdserver: invalid auth token")
ErrGRPCNoLeader = grpc.Errorf(codes.Unavailable, "etcdserver: no leader")
ErrGRPCNotCapable = grpc.Errorf(codes.Unavailable, "etcdserver: not capable")
ErrGRPCStopped = grpc.Errorf(codes.Unavailable, "etcdserver: server stopped")
ErrGRPCTimeout = grpc.Errorf(codes.Unavailable, "etcdserver: request timed out")
ErrGRPCTimeoutDueToLeaderFail = grpc.Errorf(codes.Unavailable, "etcdserver: request timed out, possibly due to previous leader failure")
ErrGRPCTimeoutDueToConnectionLost = grpc.Errorf(codes.Unavailable, "etcdserver: request timed out, possibly due to connection lost")
ErrGRPCUnhealthy = grpc.Errorf(codes.Unavailable, "etcdserver: unhealthy cluster")
errStringToError = map[string]error{
grpc.ErrorDesc(ErrGRPCEmptyKey): ErrGRPCEmptyKey,
grpc.ErrorDesc(ErrGRPCKeyNotFound): ErrGRPCKeyNotFound,
grpc.ErrorDesc(ErrGRPCValueProvided): ErrGRPCValueProvided,
grpc.ErrorDesc(ErrGRPCLeaseProvided): ErrGRPCLeaseProvided,
grpc.ErrorDesc(ErrGRPCTooManyOps): ErrGRPCTooManyOps,
grpc.ErrorDesc(ErrGRPCDuplicateKey): ErrGRPCDuplicateKey,
grpc.ErrorDesc(ErrGRPCCompacted): ErrGRPCCompacted,
grpc.ErrorDesc(ErrGRPCFutureRev): ErrGRPCFutureRev,
grpc.ErrorDesc(ErrGRPCNoSpace): ErrGRPCNoSpace,
grpc.ErrorDesc(ErrGRPCLeaseNotFound): ErrGRPCLeaseNotFound,
grpc.ErrorDesc(ErrGRPCLeaseExist): ErrGRPCLeaseExist,
grpc.ErrorDesc(ErrGRPCMemberExist): ErrGRPCMemberExist,
grpc.ErrorDesc(ErrGRPCPeerURLExist): ErrGRPCPeerURLExist,
grpc.ErrorDesc(ErrGRPCMemberNotEnoughStarted): ErrGRPCMemberNotEnoughStarted,
grpc.ErrorDesc(ErrGRPCMemberBadURLs): ErrGRPCMemberBadURLs,
grpc.ErrorDesc(ErrGRPCMemberNotFound): ErrGRPCMemberNotFound,
grpc.ErrorDesc(ErrGRPCRequestTooLarge): ErrGRPCRequestTooLarge,
grpc.ErrorDesc(ErrGRPCRequestTooManyRequests): ErrGRPCRequestTooManyRequests,
grpc.ErrorDesc(ErrGRPCRootUserNotExist): ErrGRPCRootUserNotExist,
grpc.ErrorDesc(ErrGRPCRootRoleNotExist): ErrGRPCRootRoleNotExist,
grpc.ErrorDesc(ErrGRPCUserAlreadyExist): ErrGRPCUserAlreadyExist,
grpc.ErrorDesc(ErrGRPCUserEmpty): ErrGRPCUserEmpty,
grpc.ErrorDesc(ErrGRPCUserNotFound): ErrGRPCUserNotFound,
grpc.ErrorDesc(ErrGRPCRoleAlreadyExist): ErrGRPCRoleAlreadyExist,
grpc.ErrorDesc(ErrGRPCRoleNotFound): ErrGRPCRoleNotFound,
grpc.ErrorDesc(ErrGRPCAuthFailed): ErrGRPCAuthFailed,
grpc.ErrorDesc(ErrGRPCPermissionDenied): ErrGRPCPermissionDenied,
grpc.ErrorDesc(ErrGRPCRoleNotGranted): ErrGRPCRoleNotGranted,
grpc.ErrorDesc(ErrGRPCPermissionNotGranted): ErrGRPCPermissionNotGranted,
grpc.ErrorDesc(ErrGRPCAuthNotEnabled): ErrGRPCAuthNotEnabled,
grpc.ErrorDesc(ErrGRPCInvalidAuthToken): ErrGRPCInvalidAuthToken,
grpc.ErrorDesc(ErrGRPCNoLeader): ErrGRPCNoLeader,
grpc.ErrorDesc(ErrGRPCNotCapable): ErrGRPCNotCapable,
grpc.ErrorDesc(ErrGRPCStopped): ErrGRPCStopped,
grpc.ErrorDesc(ErrGRPCTimeout): ErrGRPCTimeout,
grpc.ErrorDesc(ErrGRPCTimeoutDueToLeaderFail): ErrGRPCTimeoutDueToLeaderFail,
grpc.ErrorDesc(ErrGRPCTimeoutDueToConnectionLost): ErrGRPCTimeoutDueToConnectionLost,
grpc.ErrorDesc(ErrGRPCUnhealthy): ErrGRPCUnhealthy,
}
// client-side error
ErrEmptyKey = Error(ErrGRPCEmptyKey)
ErrKeyNotFound = Error(ErrGRPCKeyNotFound)
ErrValueProvided = Error(ErrGRPCValueProvided)
ErrLeaseProvided = Error(ErrGRPCLeaseProvided)
ErrTooManyOps = Error(ErrGRPCTooManyOps)
ErrDuplicateKey = Error(ErrGRPCDuplicateKey)
ErrCompacted = Error(ErrGRPCCompacted)
ErrFutureRev = Error(ErrGRPCFutureRev)
ErrNoSpace = Error(ErrGRPCNoSpace)
ErrLeaseNotFound = Error(ErrGRPCLeaseNotFound)
ErrLeaseExist = Error(ErrGRPCLeaseExist)
ErrMemberExist = Error(ErrGRPCMemberExist)
ErrPeerURLExist = Error(ErrGRPCPeerURLExist)
ErrMemberNotEnoughStarted = Error(ErrGRPCMemberNotEnoughStarted)
ErrMemberBadURLs = Error(ErrGRPCMemberBadURLs)
ErrMemberNotFound = Error(ErrGRPCMemberNotFound)
ErrRequestTooLarge = Error(ErrGRPCRequestTooLarge)
ErrTooManyRequests = Error(ErrGRPCRequestTooManyRequests)
ErrRootUserNotExist = Error(ErrGRPCRootUserNotExist)
ErrRootRoleNotExist = Error(ErrGRPCRootRoleNotExist)
ErrUserAlreadyExist = Error(ErrGRPCUserAlreadyExist)
ErrUserEmpty = Error(ErrGRPCUserEmpty)
ErrUserNotFound = Error(ErrGRPCUserNotFound)
ErrRoleAlreadyExist = Error(ErrGRPCRoleAlreadyExist)
ErrRoleNotFound = Error(ErrGRPCRoleNotFound)
ErrAuthFailed = Error(ErrGRPCAuthFailed)
ErrPermissionDenied = Error(ErrGRPCPermissionDenied)
ErrRoleNotGranted = Error(ErrGRPCRoleNotGranted)
ErrPermissionNotGranted = Error(ErrGRPCPermissionNotGranted)
ErrAuthNotEnabled = Error(ErrGRPCAuthNotEnabled)
ErrInvalidAuthToken = Error(ErrGRPCInvalidAuthToken)
ErrNoLeader = Error(ErrGRPCNoLeader)
ErrNotCapable = Error(ErrGRPCNotCapable)
ErrStopped = Error(ErrGRPCStopped)
ErrTimeout = Error(ErrGRPCTimeout)
ErrTimeoutDueToLeaderFail = Error(ErrGRPCTimeoutDueToLeaderFail)
ErrTimeoutDueToConnectionLost = Error(ErrGRPCTimeoutDueToConnectionLost)
ErrUnhealthy = Error(ErrGRPCUnhealthy)
)
// EtcdError defines gRPC server errors.
// (https://github.com/grpc/grpc-go/blob/master/rpc_util.go#L319-L323)
type EtcdError struct {
code codes.Code
desc string
}
// Code returns grpc/codes.Code.
// TODO: define clientv3/codes.Code.
func (e EtcdError) Code() codes.Code {
return e.code
}
func (e EtcdError) Error() string {
return e.desc
}
func Error(err error) error {
if err == nil {
return nil
}
verr, ok := errStringToError[grpc.ErrorDesc(err)]
if !ok { // not gRPC error
return err
}
return EtcdError{code: grpc.Code(verr), desc: grpc.ErrorDesc(verr)}
}