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/// CallerID is passed along RPCs to identify the originating client
/// for a request. It is not meant to be secure, but only
/// informational. The client can put whatever info they want in these
/// fields, and they will be trusted by the servers. The fields will
/// just be used for logging purposes, and to easily find a client.
/// VtGate propagates it to VtTablet, and VtTablet may use this
/// information for monitoring purposes, to display on dashboards, or
/// for denying access to tables during a migration.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct CallerId {
/// principal is the effective user identifier. It is usually filled in
/// with whoever made the request to the appserver, if the request
/// came from an automated job or another system component.
/// If the request comes directly from the Internet, or if the Vitess client
/// takes action on its own accord, it is okay for this field to be absent.
#[prost(string, tag = "1")]
pub principal: ::prost::alloc::string::String,
/// component describes the running process of the effective caller.
/// It can for instance be the hostname:port of the servlet initiating the
/// database call, or the container engine ID used by the servlet.
#[prost(string, tag = "2")]
pub component: ::prost::alloc::string::String,
/// subcomponent describes a component inisde the immediate caller which
/// is responsible for generating is request. Suggested values are a
/// servlet name or an API endpoint name.
#[prost(string, tag = "3")]
pub subcomponent: ::prost::alloc::string::String,
/// set of security groups that should be assigned to this caller.
#[prost(string, repeated, tag = "4")]
pub groups: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
}
/// RPCError is an application-level error structure returned by
/// VtTablet (and passed along by VtGate if appropriate).
/// We use this so the clients don't have to parse the error messages,
/// but instead can depend on the value of the code.
#[allow(clippy::derive_partial_eq_without_eq)]
#[derive(Clone, PartialEq, ::prost::Message)]
pub struct RpcError {
#[prost(string, tag = "2")]
pub message: ::prost::alloc::string::String,
#[prost(enumeration = "Code", tag = "3")]
pub code: i32,
}
/// Code represents canonical error codes. The names, numbers and comments
/// must match the ones defined by grpc (0-16):
/// <https://godoc.org/google.golang.org/grpc/codes.>
/// 17+ are custom codes
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, ::prost::Enumeration)]
#[repr(i32)]
pub enum Code {
/// OK is returned on success.
Ok = 0,
/// CANCELED indicates the operation was cancelled (typically by the caller).
Canceled = 1,
/// UNKNOWN error. An example of where this error may be returned is
/// if a Status value received from another address space belongs to
/// an error-space that is not known in this address space. Also
/// errors raised by APIs that do not return enough error information
/// may be converted to this error.
Unknown = 2,
/// INVALID_ARGUMENT indicates client specified an invalid argument.
/// Note that this differs from FAILED_PRECONDITION. It indicates arguments
/// that are problematic regardless of the state of the system
/// (e.g., a malformed file name).
InvalidArgument = 3,
/// DEADLINE_EXCEEDED means operation expired before completion.
/// For operations that change the state of the system, this error may be
/// returned even if the operation has completed successfully. For
/// example, a successful response from a server could have been delayed
/// long enough for the deadline to expire.
DeadlineExceeded = 4,
/// NOT_FOUND means some requested entity (e.g., file or directory) was
/// not found.
NotFound = 5,
/// ALREADY_EXISTS means an attempt to create an entity failed because one
/// already exists.
AlreadyExists = 6,
/// PERMISSION_DENIED indicates the caller does not have permission to
/// execute the specified operation. It must not be used for rejections
/// caused by exhausting some resource (use RESOURCE_EXHAUSTED
/// instead for those errors). It must not be
/// used if the caller cannot be identified (use Unauthenticated
/// instead for those errors).
PermissionDenied = 7,
/// RESOURCE_EXHAUSTED indicates some resource has been exhausted, perhaps
/// a per-user quota, or perhaps the entire file system is out of space.
ResourceExhausted = 8,
/// FAILED_PRECONDITION indicates operation was rejected because the
/// system is not in a state required for the operation's execution.
/// For example, directory to be deleted may be non-empty, an rmdir
/// operation is applied to a non-directory, etc.
///
/// A litmus test that may help a service implementor in deciding
/// between FAILED_PRECONDITION, ABORTED, and UNAVAILABLE:
/// (a) Use UNAVAILABLE if the client can retry just the failing call.
/// (b) Use ABORTED if the client should retry at a higher-level
/// (e.g., restarting a read-modify-write sequence).
/// (c) Use FAILED_PRECONDITION if the client should not retry until
/// the system state has been explicitly fixed. E.g., if an "rmdir"
/// fails because the directory is non-empty, FAILED_PRECONDITION
/// should be returned since the client should not retry unless
/// they have first fixed up the directory by deleting files from it.
/// (d) Use FAILED_PRECONDITION if the client performs conditional
/// REST Get/Update/Delete on a resource and the resource on the
/// server does not match the condition. E.g., conflicting
/// read-modify-write on the same resource.
FailedPrecondition = 9,
/// ABORTED indicates the operation was aborted, typically due to a
/// concurrency issue like sequencer check failures, transaction aborts,
/// etc.
///
/// See litmus test above for deciding between FAILED_PRECONDITION,
/// ABORTED, and UNAVAILABLE.
Aborted = 10,
/// OUT_OF_RANGE means operation was attempted past the valid range.
/// E.g., seeking or reading past end of file.
///
/// Unlike INVALID_ARGUMENT, this error indicates a problem that may
/// be fixed if the system state changes. For example, a 32-bit file
/// system will generate INVALID_ARGUMENT if asked to read at an
/// offset that is not in the range \[0,2^32-1\], but it will generate
/// OUT_OF_RANGE if asked to read from an offset past the current
/// file size.
///
/// There is a fair bit of overlap between FAILED_PRECONDITION and
/// OUT_OF_RANGE. We recommend using OUT_OF_RANGE (the more specific
/// error) when it applies so that callers who are iterating through
/// a space can easily look for an OUT_OF_RANGE error to detect when
/// they are done.
OutOfRange = 11,
/// UNIMPLEMENTED indicates operation is not implemented or not
/// supported/enabled in this service.
Unimplemented = 12,
/// INTERNAL errors. Means some invariants expected by underlying
/// system has been broken. If you see one of these errors,
/// something is very broken.
Internal = 13,
/// UNAVAILABLE indicates the service is currently unavailable.
/// This is a most likely a transient condition and may be corrected
/// by retrying with a backoff.
///
/// See litmus test above for deciding between FAILED_PRECONDITION,
/// ABORTED, and UNAVAILABLE.
Unavailable = 14,
/// DATA_LOSS indicates unrecoverable data loss or corruption.
DataLoss = 15,
/// UNAUTHENTICATED indicates the request does not have valid
/// authentication credentials for the operation.
Unauthenticated = 16,
/// CLUSTER_EVENT indicates that a cluster operation might be in effect
ClusterEvent = 17,
/// Topo server connection is read-only
ReadOnly = 18,
}
impl Code {
/// String value of the enum field names used in the ProtoBuf definition.
///
/// The values are not transformed in any way and thus are considered stable
/// (if the ProtoBuf definition does not change) and safe for programmatic use.
pub fn as_str_name(&self) -> &'static str {
match self {
Code::Ok => "OK",
Code::Canceled => "CANCELED",
Code::Unknown => "UNKNOWN",
Code::InvalidArgument => "INVALID_ARGUMENT",
Code::DeadlineExceeded => "DEADLINE_EXCEEDED",
Code::NotFound => "NOT_FOUND",
Code::AlreadyExists => "ALREADY_EXISTS",
Code::PermissionDenied => "PERMISSION_DENIED",
Code::ResourceExhausted => "RESOURCE_EXHAUSTED",
Code::FailedPrecondition => "FAILED_PRECONDITION",
Code::Aborted => "ABORTED",
Code::OutOfRange => "OUT_OF_RANGE",
Code::Unimplemented => "UNIMPLEMENTED",
Code::Internal => "INTERNAL",
Code::Unavailable => "UNAVAILABLE",
Code::DataLoss => "DATA_LOSS",
Code::Unauthenticated => "UNAUTHENTICATED",
Code::ClusterEvent => "CLUSTER_EVENT",
Code::ReadOnly => "READ_ONLY",
}
}
/// Creates an enum from field names used in the ProtoBuf definition.
pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
match value {
"OK" => Some(Self::Ok),
"CANCELED" => Some(Self::Canceled),
"UNKNOWN" => Some(Self::Unknown),
"INVALID_ARGUMENT" => Some(Self::InvalidArgument),
"DEADLINE_EXCEEDED" => Some(Self::DeadlineExceeded),
"NOT_FOUND" => Some(Self::NotFound),
"ALREADY_EXISTS" => Some(Self::AlreadyExists),
"PERMISSION_DENIED" => Some(Self::PermissionDenied),
"RESOURCE_EXHAUSTED" => Some(Self::ResourceExhausted),
"FAILED_PRECONDITION" => Some(Self::FailedPrecondition),
"ABORTED" => Some(Self::Aborted),
"OUT_OF_RANGE" => Some(Self::OutOfRange),
"UNIMPLEMENTED" => Some(Self::Unimplemented),
"INTERNAL" => Some(Self::Internal),
"UNAVAILABLE" => Some(Self::Unavailable),
"DATA_LOSS" => Some(Self::DataLoss),
"UNAUTHENTICATED" => Some(Self::Unauthenticated),
"CLUSTER_EVENT" => Some(Self::ClusterEvent),
"READ_ONLY" => Some(Self::ReadOnly),
_ => None,
}
}
}