forked from goodrain/rainbond
/
controller.go
195 lines (171 loc) · 6.4 KB
/
controller.go
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// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package controller
import (
"context"
"io/ioutil"
"strings"
"github.com/goodrain/rainbond/mq/api/mq"
"github.com/Sirupsen/logrus"
discovermodel "github.com/goodrain/rainbond/worker/discover/model"
restful "github.com/emicklei/go-restful"
)
//Register 注册
func Register(container *restful.Container, mq mq.ActionMQ) {
MQSource{mq}.Register(container)
}
//MQSource 消息队列接口
type MQSource struct {
mq mq.ActionMQ
}
//Register 注册
func (u MQSource) Register(container *restful.Container) {
ws := new(restful.WebService)
ws.Path("/mq").
Doc("message queue interface").
Consumes(restful.MIME_XML, restful.MIME_JSON).
Produces(restful.MIME_JSON, restful.MIME_XML) // you can specify this per route as well
ws.Route(ws.POST("/{topic}").To(u.enqueue).
// docs
Doc("send a task message to the topic queue").
Operation("enqueue").
Param(ws.PathParameter("topic", "queue topic name").DataType("string")).
Reads(discovermodel.Task{}).
Returns(201, "消息发送成功", ResponseType{}).
ReturnsError(400, "消息格式有误", ResponseType{}))
ws.Route(ws.GET("/{topic}").To(u.dequeue).
// docs
Doc("get a task message from the topic queue").
Operation("dequeue").
Param(ws.PathParameter("topic", "queue topic name").DataType("string")).
Writes(ResponseType{
Body: ResponseBody{
Bean: discovermodel.Task{},
},
})) // from the request
ws.Route(ws.GET("/topics").To(u.getAllTopics).
// docs
Doc("get all support topic").
Operation("getAllTopics").
Writes(ResponseType{
Body: ResponseBody{
Bean: discovermodel.Task{},
},
})) // from the request
container.Add(ws)
}
//ResponseType 返回内容
type ResponseType struct {
Code int `json:"code"`
Message string `json:"msg"`
MessageCN string `json:"msgcn"`
Body ResponseBody `json:"body,omitempty"`
}
//ResponseBody 返回主要内容体
type ResponseBody struct {
Bean interface{} `json:"bean,omitempty"`
List []interface{} `json:"list,omitempty"`
PageNum int `json:"pageNumber,omitempty"`
PageSize int `json:"pageSize,omitempty"`
Total int `json:"total,omitempty"`
}
//NewResponseType 构建返回结构
func NewResponseType(code int, message string, messageCN string, bean interface{}, list []interface{}) ResponseType {
return ResponseType{
Code: code,
Message: message,
MessageCN: messageCN,
Body: ResponseBody{
Bean: bean,
List: list,
},
}
}
//NewPostSuccessResponse 创建成功返回结构
func NewPostSuccessResponse(bean interface{}, list []interface{}, response *restful.Response) {
response.WriteHeaderAndJson(201, NewResponseType(201, "", "", bean, list), restful.MIME_JSON)
return
}
//NewSuccessResponse 创建成功返回结构
func NewSuccessResponse(bean interface{}, list []interface{}, response *restful.Response) {
response.WriteHeaderAndJson(200, NewResponseType(200, "", "", bean, list), restful.MIME_JSON)
return
}
//NewSuccessMessageResponse 创建成功返回结构
func NewSuccessMessageResponse(bean interface{}, list []interface{}, message, messageCN string, response *restful.Response) {
response.WriteHeaderAndJson(200, NewResponseType(200, message, messageCN, bean, list), restful.MIME_JSON)
return
}
//NewFaliResponse 创建返回失败结构
func NewFaliResponse(code int, message string, messageCN string, response *restful.Response) {
response.WriteHeaderAndJson(code, NewResponseType(code, message, messageCN, nil, nil), restful.MIME_JSON)
return
}
func (u *MQSource) enqueue(request *restful.Request, response *restful.Response) {
topic := request.PathParameter("topic")
if topic == "" || !u.mq.TopicIsExist(topic) {
NewFaliResponse(400, "topic can not be empty or topic is not define", "主题不能为空或者当前主题未注册", response)
return
}
body, err := ioutil.ReadAll(request.Request.Body)
if err != nil {
NewFaliResponse(500, "request body error."+err.Error(), "读取数据错误", response)
return
}
request.Request.Body.Close()
_, err = discovermodel.NewTask(body)
if err != nil {
NewFaliResponse(400, "request body error."+err.Error(), "读取数据错误,数据不合法", response)
return
}
ctx, cancel := context.WithCancel(request.Request.Context())
defer cancel()
err = u.mq.Enqueue(ctx, topic, string(body))
if err != nil {
NewFaliResponse(500, "enqueue error."+err.Error(), "消息入队列错误", response)
return
}
logrus.Debugf("Add a task to queue :%s", strings.TrimSpace(string(body)))
NewPostSuccessResponse(nil, nil, response)
}
func (u *MQSource) dequeue(request *restful.Request, response *restful.Response) {
topic := request.PathParameter("topic")
if topic == "" || !u.mq.TopicIsExist(topic) {
NewFaliResponse(400, "topic can not be empty or topic is not define", "主题不能为空或者当前主题未注册", response)
return
}
ctx, cancel := context.WithCancel(request.Request.Context())
defer cancel()
value, err := u.mq.Dequeue(ctx, topic)
if err != nil {
NewFaliResponse(500, "dequeue error."+err.Error(), "消息出队列错误", response)
return
}
task, err := discovermodel.NewTask([]byte(value))
if err != nil {
NewFaliResponse(500, "dequeue error."+err.Error(), "队列读出消息格式不合法", response)
return
}
NewSuccessResponse(task, nil, response)
logrus.Debugf("Consume a task from queue :%s", strings.TrimSpace(value))
}
func (u *MQSource) getAllTopics(request *restful.Request, response *restful.Response) {
topics := u.mq.GetAllTopics()
var list []interface{}
for _, t := range topics {
list = append(list, t)
}
NewSuccessResponse(nil, list, response)
}