1. change glog to klog

2. move types to api package to avoid cyclic import

pkg/server/errors/errors.go

@@ -0,0 +1,65 @@
+/*
+
+ Copyright 2019 The KubeSphere 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 errors
+
+import (
+	"encoding/json"
+	"errors"
+	"github.com/emicklei/go-restful"
+	"net/http"
+)
+
+type Error struct {
+	Message string `json:"message" description:"error message"`
+}
+
+var None = Error{Message: "success"}
+
+func (e *Error) Error() string {
+	return e.Message
+}
+
+func Wrap(err error) Error {
+	return Error{Message: err.Error()}
+}
+
+func New(message string) Error {
+	return Error{Message: message}
+}
+
+func Parse(data []byte) error {
+	var j map[string]string
+	err := json.Unmarshal(data, &j)
+	if err != nil {
+		return errors.New(string(data))
+	} else if message := j["message"]; message != "" {
+		return errors.New(message)
+	} else if message := j["Error"]; message != "" {
+		return errors.New(message)
+	} else {
+		return errors.New(string(data))
+	}
+}
+
+func ParseSvcErr(err error, resp *restful.Response) {
+	if svcErr, ok := err.(restful.ServiceError); ok {
+		resp.WriteServiceError(svcErr.Code, svcErr)
+	} else {
+		resp.WriteHeaderAndEntity(http.StatusInternalServerError, Wrap(err))
+	}
+}