mirror of
https://github.com/etcd-io/etcd.git
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91 lines
2.1 KiB
Go
91 lines
2.1 KiB
Go
/*
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Copyright 2013 CoreOS Inc.
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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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"encoding/json"
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"net/http"
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)
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var errors map[int]string
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const ()
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func init() {
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errors = make(map[int]string)
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// command related errors
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errors[100] = "Key Not Found"
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errors[101] = "The given PrevValue is not equal to the value of the key"
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errors[102] = "Not A File"
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errors[103] = "Reached the max number of machines in the cluster"
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// Post form related errors
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errors[200] = "Value is Required in POST form"
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errors[201] = "PrevValue is Required in POST form"
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errors[202] = "The given TTL in POST form is not a number"
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errors[203] = "The given index in POST form is not a number"
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// raft related errors
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errors[300] = "Raft Internal Error"
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errors[301] = "During Leader Election"
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// keyword
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errors[400] = "The prefix of the given key is a keyword in etcd"
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// etcd related errors
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errors[500] = "watcher is cleared due to etcd recovery"
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}
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type Error struct {
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ErrorCode int `json:"errorCode"`
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Message string `json:"message"`
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Cause string `json:"cause,omitempty"`
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}
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func NewError(errorCode int, cause string) Error {
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return Error{
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ErrorCode: errorCode,
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Message: errors[errorCode],
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Cause: cause,
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}
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}
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func Message(code int) string {
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return errors[code]
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}
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// Only for error interface
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func (e Error) Error() string {
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return e.Message
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}
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func (e Error) toJsonString() string {
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b, _ := json.Marshal(e)
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return string(b)
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}
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func (e Error) Write(w http.ResponseWriter) {
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// 3xx is reft internal error
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if e.ErrorCode/100 == 3 {
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http.Error(w, e.toJsonString(), http.StatusInternalServerError)
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} else {
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http.Error(w, e.toJsonString(), http.StatusBadRequest)
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}
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}
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