f3fe3123b3
Concurrency in the pool manager allows specializing pods concurrently based on a specified limit. Co-authored-by: Vishal <vishal-biyani@users.noreply.github.com>
154 lines
3.1 KiB
Go
154 lines
3.1 KiB
Go
/*
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Copyright 2016 The Fission Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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package error
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import (
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"fmt"
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"io/ioutil"
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"net/http"
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"strings"
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)
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type (
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// Errors returned by the Fission API.
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Error struct {
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Code errorCode `json:"code"`
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Message string `json:"message"`
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}
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errorCode int
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)
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func (err Error) Error() string {
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return fmt.Sprintf("%v - %v", err.Description(), err.Message)
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}
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func MakeError(code int, msg string) Error {
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return Error{Code: errorCode(code), Message: msg}
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}
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func MakeErrorFromHTTP(resp *http.Response) error {
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if resp.StatusCode == http.StatusOK {
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return nil
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}
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var errCode int
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switch resp.StatusCode {
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case http.StatusBadRequest:
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errCode = ErrorInvalidArgument
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case http.StatusForbidden:
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errCode = ErrorNotAuthorized
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case http.StatusNotFound:
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errCode = ErrorNotFound
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case http.StatusConflict:
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errCode = ErrorNameExists
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case http.StatusRequestTimeout:
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errCode = ErrorRequestTimeout
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case http.StatusTooManyRequests:
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errCode = ErrorTooManyRequests
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default:
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errCode = ErrorInternal
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}
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msg := resp.Status
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defer resp.Body.Close()
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body, err := ioutil.ReadAll(resp.Body)
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if err == nil && len(body) > 0 {
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msg = strings.TrimSpace(string(body))
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}
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return MakeError(errCode, msg)
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}
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func (err Error) HTTPStatus() int {
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var code int
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switch err.Code {
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case ErrorInvalidArgument:
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code = http.StatusBadRequest
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case ErrorNotAuthorized:
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code = http.StatusForbidden
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case ErrorNotFound:
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code = http.StatusNotFound
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case ErrorNameExists:
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code = http.StatusConflict
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case ErrorTooManyRequests:
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code = http.StatusTooManyRequests
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default:
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code = http.StatusInternalServerError
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}
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return code
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}
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func (err Error) Description() string {
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idx := int(err.Code)
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if idx < 0 || idx > len(errorDescriptions)-1 {
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return ""
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}
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return errorDescriptions[idx]
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}
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func GetHTTPError(err error) (int, string) {
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var msg string
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var code int
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fe, ok := err.(Error)
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if ok {
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code = fe.HTTPStatus()
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msg = fe.Message
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} else {
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code = http.StatusInternalServerError
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msg = err.Error()
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}
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return code, msg
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}
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func IsNotFound(err error) bool {
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fe, ok := err.(Error)
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if !ok {
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return false
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}
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return fe.Code == ErrorNotFound
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}
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const (
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ErrorInternal = iota
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ErrorNotAuthorized
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ErrorNotFound
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ErrorNameExists
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ErrorInvalidArgument
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ErrorNoSpace
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ErrorNotImplmented
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ErrorChecksumFail
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ErrorSizeLimitExceeded
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ErrorRequestTimeout
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ErrorTooManyRequests
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)
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// must match order and len of the above const
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var errorDescriptions = []string{
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"Internal error",
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"Not authorized",
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"Resource not found",
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"Resource exists",
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"Invalid argument",
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"No space",
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"Not implemented",
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"Checksum verification failed",
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"Size limit exceeded",
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"Request time limit exceeded",
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}
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