/
response.go
114 lines (97 loc) · 3.13 KB
/
response.go
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// Copyright 2019 The Vearch 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 netutil
import (
"net/http"
"strconv"
"github.com/vearch/vearch/proto/vearchpb"
"github.com/vearch/vearch/util/cbjson"
"github.com/vearch/vearch/util/log"
)
type Response struct {
respWriter http.ResponseWriter
httpStatus int
allowMethod string
}
func NewResponse(respWriter http.ResponseWriter) *Response {
return &Response{
respWriter: respWriter,
httpStatus: http.StatusOK,
}
}
func (this *Response) SetHttpStatus(httpStatus int) *Response {
this.httpStatus = httpStatus
return this
}
func (this *Response) SetAllowMethod(method string) *Response {
this.allowMethod = method
return this
}
func (this *Response) SendText(text string) {
this.respWriter.Header().Set("Content-Type", "text/plain; charset=UTF-8")
this.respWriter.Header().Set("Content-Length", strconv.Itoa(len(text)))
if this.allowMethod != "" {
/*
< HTTP/1.1 405 Method Not Allowed
< Allow: POST
*/
this.respWriter.Header().Set("Allow", this.allowMethod)
}
this.respWriter.WriteHeader(this.httpStatus)
if _, err := this.respWriter.Write([]byte(text)); err != nil {
log.Error("fail to write http reply[%s] len[%d]. err:[%v]", string(text), len(text), err)
}
}
func (this *Response) SendJsonBytes(bytes []byte) {
this.respWriter.Header().Set("Content-Type", "application/json; charset=UTF-8")
this.respWriter.Header().Set("Content-Length", strconv.Itoa(len(bytes)))
if this.allowMethod != "" {
/*
< HTTP/1.1 405 Method Not Allowed
< Allow: POST
*/
this.respWriter.Header().Set("Allow", this.allowMethod)
}
this.respWriter.WriteHeader(this.httpStatus)
if _, err := this.respWriter.Write(bytes); err != nil {
log.Error("fail to write http reply, err:[%v], body:[%s] len[%d]", err, string(bytes), len(bytes))
}
}
func (this *Response) SendJson(data interface{}) {
reply, err := cbjson.Marshal(data)
if err != nil {
this.SetHttpStatus(http.StatusInternalServerError).SendText(err.Error())
return
}
this.SendJsonBytes(reply)
}
func (this *Response) SendJsonHttpReplySuccess(data interface{}) {
httpReply := &HttpReply{
Code: int64(vearchpb.ErrCode(vearchpb.ErrorEnum_SUCCESS)),
Msg: vearchpb.ErrMsg(vearchpb.ErrorEnum_SUCCESS),
Data: data,
}
this.SendJson(httpReply)
}
func (this *Response) SendJsonHttpReplyError(err error) {
if err == nil {
this.SetHttpStatus(http.StatusInternalServerError).SendText("SendJsonHttpReplyError param err is nil")
return
}
httpReply := &HttpReply{
Code: int64(vearchpb.ErrCode(vearchpb.NewError(vearchpb.ErrorEnum_INTERNAL_ERROR, err).GetError().Code)),
Msg: err.Error(),
}
this.SendJson(httpReply)
}