mirror of https://github.com/grpc/grpc-go.git
67 lines
2.1 KiB
Go
67 lines
2.1 KiB
Go
/*
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*
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* Copyright 2020 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package xdsresource
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import "fmt"
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// ErrorType is the type of the error that the watcher will receive from the xds
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// client.
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type ErrorType int
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const (
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// ErrorTypeUnknown indicates the error doesn't have a specific type. It is
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// the default value, and is returned if the error is not an xds error.
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ErrorTypeUnknown ErrorType = iota
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// ErrorTypeConnection indicates a connection error from the gRPC client.
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ErrorTypeConnection
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// ErrorTypeResourceNotFound indicates a resource is not found from the xds
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// response. It's typically returned if the resource is removed in the xds
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// server.
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ErrorTypeResourceNotFound
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// ErrorTypeResourceTypeUnsupported indicates the receipt of a message from
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// the management server with resources of an unsupported resource type.
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ErrorTypeResourceTypeUnsupported
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// ErrTypeStreamFailedAfterRecv indicates an ADS stream error, after
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// successful receipt of at least one message from the server.
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ErrTypeStreamFailedAfterRecv
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)
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type xdsClientError struct {
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t ErrorType
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desc string
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}
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func (e *xdsClientError) Error() string {
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return e.desc
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}
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// NewErrorf creates an xds client error. The callbacks are called with this
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// error, to pass additional information about the error.
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func NewErrorf(t ErrorType, format string, args ...any) error {
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return &xdsClientError{t: t, desc: fmt.Sprintf(format, args...)}
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}
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// ErrType returns the error's type.
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func ErrType(e error) ErrorType {
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if xe, ok := e.(*xdsClientError); ok {
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return xe.t
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}
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return ErrorTypeUnknown
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}
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