/
engine.go
145 lines (126 loc) · 4.41 KB
/
engine.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
package LiquidEngine
import (
"context"
"fmt"
"github.com/cesnow/liquid-engine/features/route-health"
"github.com/cesnow/liquid-engine/features/route-pprof"
"github.com/cesnow/liquid-engine/internal/feature-register"
LiquidDb "github.com/cesnow/liquid-engine/liquid-db"
"github.com/cesnow/liquid-engine/liquid-sdk"
"github.com/cesnow/liquid-engine/features/foundation"
"github.com/cesnow/liquid-engine/internal/middlewares"
"github.com/cesnow/liquid-engine/logger"
"github.com/cesnow/liquid-engine/options"
"github.com/cesnow/liquid-engine/settings"
"github.com/gin-contrib/cors"
"github.com/gin-gonic/gin"
"github.com/joho/godotenv"
_ "github.com/joho/godotenv/autoload"
_ "google.golang.org/grpc/encoding/gzip"
"net/http"
"os"
"os/signal"
"syscall"
"time"
)
type IEngine interface {
}
type Engine struct {
Config *Config
ginEngine *gin.Engine
StartTime time.Time
}
var _ IEngine = &Engine{}
func New() *Engine {
startTime := time.Now()
logger.SysLog.Info("[Engine] Starting")
engine := &Engine{
Config: &Config{
App: &settings.AppConf{},
Gin: &settings.GinConf{},
AMQP: &settings.AMQPConf{},
CacheDB: &settings.CacheDbConf{},
DocDB: &settings.DocDbConf{},
RDB: &settings.RDBConf{},
custom: make(map[string]interface{}),
},
}
engine.StartTime = startTime
engine.Config.engine = engine
engine.Config.raw, _ = godotenv.Read()
engine.Config.systemExternalEnv("app", engine.Config.App)
engine.Config.systemExternalEnv("gin", engine.Config.Gin)
engine.Config.systemExternalEnv("amqp", engine.Config.AMQP)
engine.Config.systemExternalEnv("cachedb", engine.Config.CacheDB)
engine.Config.systemExternalEnv("docdb", engine.Config.DocDB)
engine.Config.systemExternalEnv("rdb", engine.Config.RDB)
logger.SysLog.Info("[Engine] Environment Loaded")
LiquidSDK.GetServer().SetCodeName(engine.Config.App.Codename)
LiquidDb.GetInstance().SetCodeName(engine.Config.App.Codename)
LiquidDb.GetInstance().ConnectCacheDbService(engine.Config.CacheDB)
LiquidDb.GetInstance().ConnectDocDbService(engine.Config.DocDB)
LiquidDb.GetInstance().InitializeSystemDocIndexes()
LiquidSDK.GetServer().InitCodenameKey()
engine.initializeGinEngine()
engine.initializeFeatures()
return engine
}
func (engine *Engine) initializeGinEngine() {
gin.SetMode(engine.Config.Gin.RunMode)
engine.ginEngine = gin.New()
engine.ginEngine.Use(middlewares.GinLogger(1 * time.Second))
engine.ginEngine.Use(gin.Recovery())
engine.ginEngine.Use(cors.New(cors.Config{
AllowOriginFunc: func(origin string) bool { return true },
AllowMethods: []string{"GET", "POST", "PUT", "DELETE", "PATCH", "HEAD"},
AllowHeaders: []string{"Origin", "Content-Length", "Content-Type"},
AllowCredentials: true,
MaxAge: 12 * time.Hour,
}))
engine.RegisterGin("Foundation", foundation.Routers)
engine.RegisterGin("HealthFoundation", route_health.Routers)
engine.RegisterGin("PProfFoundation", route_pprof.Routers)
}
func (engine *Engine) initializeFeatures() {
for name, mod := range feature_register.GetModuleList() {
engine.RegisterFeature(name, mod)
}
}
func (engine *Engine) GetGin() *gin.Engine {
return engine.ginEngine
}
func (engine *Engine) Serve(opts ...*options.ServeOptions) {
serveOptions := options.MergeServeOptions(opts...)
if serveOptions.ServePort != nil {
engine.Config.Gin.HttpPort = *serveOptions.ServePort
}
maxHeaderBytes := 1 << 20
endPoint := fmt.Sprintf(":%d", engine.Config.Gin.HttpPort)
server := &http.Server{
Addr: endPoint,
Handler: engine.ginEngine,
ReadTimeout: time.Duration(engine.Config.Gin.ReadTimeout) * time.Millisecond,
WriteTimeout: time.Duration(engine.Config.Gin.WriteTimeout) * time.Millisecond,
MaxHeaderBytes: maxHeaderBytes,
}
go func() {
serveTime := time.Now()
logger.SysLog.Infof("[Engine] Serving HTTP(%s) in %dms", endPoint, serveTime.Sub(engine.StartTime).Milliseconds())
if err := server.ListenAndServe(); err != nil {
logger.SysLog.Warnf("[Engine] Stop Serving (%s)", err)
}
}()
signalChan := make(chan os.Signal)
exitChan := make(chan bool)
signal.Notify(signalChan, syscall.SIGINT, syscall.SIGTERM)
go func() {
sig := <-signalChan
logger.SysLog.Warnf("[Engine] Caught Signal(%03d)", sig)
if err := server.Shutdown(context.Background()); err != nil {
logger.SysLog.Warnf("[Engine] Shutdown Server with Error, %s", err)
}
exitChan <- true
}()
<-exitChan
logger.SysLog.Warn("[Engine] Shutdown Server")
}