forked from TechEmpower/FrameworkBenchmarks
/
hello.go
182 lines (156 loc) · 3.98 KB
/
hello.go
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package main
import (
"fmt"
"log"
"math/rand"
"runtime"
"sort"
"strconv"
"database/sql"
"github.com/gin-gonic/gin"
_ "github.com/go-sql-driver/mysql"
)
const (
// Database
worldSelect = "SELECT id, randomNumber FROM World WHERE id = ?"
worldUpdate = "UPDATE World SET randomNumber = ? WHERE id = ?"
fortuneSelect = "SELECT id, message FROM Fortune;"
worldRowCount = 10000
maxConnectionCount = 256
)
type World struct {
Id uint16 `json:"id"`
RandomNumber uint16 `json:"randomNumber"`
}
type Fortune struct {
Id uint16 `json:"id"`
Message string `json:"message"`
}
type Fortunes []*Fortune
func (s Fortunes) Len() int { return len(s) }
func (s Fortunes) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
type ByMessage struct{ Fortunes }
func (s ByMessage) Less(i, j int) bool { return s.Fortunes[i].Message < s.Fortunes[j].Message }
var (
// Database
worldStatement *sql.Stmt
fortuneStatement *sql.Stmt
updateStatement *sql.Stmt
)
func parseQueries(c *gin.Context) int {
n, err := strconv.Atoi(c.Request.URL.Query().Get("queries"))
if err != nil {
n = 1
} else if n < 1 {
n = 1
} else if n > 500 {
n = 500
}
return n
}
/// Test 1: JSON serialization
func json(c *gin.Context) {
c.JSON(200, gin.H{"message": "Hello, World!"})
}
/// Test 2: Single database query
func db(c *gin.Context) {
var world World
err := worldStatement.QueryRow(rand.Intn(worldRowCount)+1).Scan(&world.Id, &world.RandomNumber)
if err != nil {
c.AbortWithError(500, err)
return
}
c.JSON(200, &world)
}
/// Test 3: Multiple database queries
func dbs(c *gin.Context) {
numQueries := parseQueries(c)
worlds := make([]World, numQueries)
for i := 0; i < numQueries; i++ {
err := worldStatement.QueryRow(rand.Intn(worldRowCount)+1).Scan(&worlds[i].Id, &worlds[i].RandomNumber)
if err != nil {
c.AbortWithError(500, err)
return
}
}
c.JSON(200, &worlds)
}
/// Test 4: Fortunes
func fortunes(c *gin.Context) {
rows, err := fortuneStatement.Query()
if err != nil {
c.AbortWithError(500, err)
return
}
fortunes := make(Fortunes, 0, 16)
for rows.Next() { //Fetch rows
fortune := Fortune{}
if err := rows.Scan(&fortune.Id, &fortune.Message); err != nil {
c.AbortWithError(500, err)
return
}
fortunes = append(fortunes, &fortune)
}
fortunes = append(fortunes, &Fortune{Message: "Additional fortune added at request time."})
sort.Sort(ByMessage{fortunes})
c.HTML(200, "fortune.html", fortunes)
}
/// Test 5: Database updates
func update(c *gin.Context) {
numQueries := parseQueries(c)
world := make([]World, numQueries)
for i := 0; i < numQueries; i++ {
if err := worldStatement.QueryRow(rand.Intn(worldRowCount)+1).Scan(&world[i].Id, &world[i].RandomNumber); err != nil {
c.AbortWithError(500, err)
return
}
world[i].RandomNumber = uint16(rand.Intn(worldRowCount) + 1)
if _, err := updateStatement.Exec(world[i].RandomNumber, world[i].Id); err != nil {
c.AbortWithError(500, err)
return
}
}
c.JSON(200, world)
}
/// Test 6: plaintext
func plaintext(c *gin.Context) {
c.String(200, "Hello, World!")
}
func main() {
gin.SetMode(gin.ReleaseMode)
r := gin.New()
serverHeader := []string{"Gin"}
r.Use(func(c *gin.Context) {
c.Writer.Header()["Server"] = serverHeader
})
r.LoadHTMLFiles("fortune.html")
r.GET("/json", json)
r.GET("/db", db)
r.GET("/dbs", dbs)
r.GET("/fortunes", fortunes)
r.GET("/update", update)
r.GET("/plaintext", plaintext)
r.Run(":8080")
}
func init() {
runtime.GOMAXPROCS(runtime.NumCPU())
dsn := "benchmarkdbuser:benchmarkdbpass@tcp(%s:3306)/hello_world"
dbhost := "tfb-database"
db, err := sql.Open("mysql", fmt.Sprintf(dsn, dbhost))
if err != nil {
log.Fatalf("Error opening database: %v", err)
}
db.SetMaxIdleConns(maxConnectionCount)
worldStatement, err = db.Prepare(worldSelect)
if err != nil {
log.Fatal(err)
}
fortuneStatement, err = db.Prepare(fortuneSelect)
if err != nil {
log.Fatal(err)
}
updateStatement, err = db.Prepare(worldUpdate)
if err != nil {
log.Fatal(err)
}
}