go-stdlib

go-stdlib/README.rst

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+================================================================================
+Go test code for The Great Web Framework Shootout
+================================================================================
+
+| Copyright: (c) 2012 Andrew Gerrand
+
+
+Synopsis
+================================================================================
+
+An implementation of the 'webgo' benchmark that uses Go's built-in net/http and
+html/template pacakges instead of web.go and mustache.go. This implementation
+also provides a database example using the built-in database/sql abstraction
+layer and mattn's go-sqlite3.
+
+Go's http and template packages are more mature and featureful than the libraries
+orignally chosen for the shootout.
+
+This was written to run against Go version weekly.2012-02-14.

go-stdlib/hello.go

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+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+	"net/http"
+	"text/template"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+func helloHandler(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprint(w, "Hello world!")
+}
+
+var (
+	lipsumTmpl   = template.Must(template.ParseFiles("tmpl/main.tmpl", "tmpl/lipsum.tmpl"))
+	databaseTmpl = template.Must(template.ParseFiles("tmpl/main.tmpl", "tmpl/database.tmpl"))
+)
+
+func templateHandler(w http.ResponseWriter, r *http.Request) {
+	lipsumTmpl.Execute(w, nil)
+}
+
+const query = "SELECT id, data FROM hello ORDER BY id ASC"
+
+type Row struct {
+	Id   int
+	Data string
+}
+
+func makeDatabaseHandler() http.HandlerFunc {
+	db, err := sql.Open("sqlite3", "hello.db")
+	if err != nil {
+		//serveError(w, err)
+		//return
+		panic("AAAAAARGH !") // Yeah, I know... it needs better error handling...
+	}
+	return func(w http.ResponseWriter, r *http.Request) {
+		// defer db.Close()
+		// Never close it, huh ?!?!?!
+		databaseHandler(w, r, db)
+	}
+}
+
+func databaseHandler(w http.ResponseWriter, r *http.Request, db *sql.DB) {
+	rows, err := db.Query(query)
+	if err != nil {
+		serveError(w, err)
+		return
+	}
+	defer rows.Close()
+
+	var tmplData []*Row
+	for rows.Next() {
+		var row Row
+		err = rows.Scan(&row.Id, &row.Data)
+		if err != nil {
+			serveError(w, err)
+			return
+		}
+		tmplData = append(tmplData, &row)
+	}
+
+	err = databaseTmpl.Execute(w, tmplData)
+	if err != nil {
+		serveError(w, err)
+	}
+}
+
+func serveError(w http.ResponseWriter, err error) {
+	http.Error(w, "Internal server error", 500)
+	log.Println(err)
+	return
+}
+
+func main() {
+	http.HandleFunc("/", helloHandler)
+	http.HandleFunc("/template", templateHandler)
+	http.HandleFunc("/database", makeDatabaseHandler())
+	http.ListenAndServe(":8080", nil)
+}

go-stdlib/tmpl/database.tmpl

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+{{define "body"}}
+    <p>Lorem ipsum dolor sit amet, consecteteur adipiscing elit nisi ultricies. Condimentum vel, at augue nibh sed. Diam praesent metus ut eros, sem penatibus. Pellentesque. Fusce odio posuere litora non integer habitant proin. Metus accumsan nibh facilisis nostra lobortis cum diam tellus. Malesuada nostra a volutpat pede primis congue nisl feugiat in fermentum. Orci in hymenaeos. Eni tempus mi mollis lacinia orci interdum lacus. Sollicitudin aliquet, etiam. Ac. Mi, nullam ligula, tristique penatibus nisi eros nisl pede pharetra congue, aptent nulla, rhoncus tellus morbi, ornare. Magna condimentum erat turpis. Fusce arcu ve suscipit nisi phasellus rutrum a dictumst leo, laoreet dui, ultricies platea. Porta venenatis fringilla vestibulum arcu etiam condimentum non.</p>
+
+    <table border="1">
+    {{range .}}
+	<tr><td>{{.Id}}</td><td>{{.Data}}</td></tr>
+    {{end}}
+    </table>
+{{end}}

go-stdlib/tmpl/lipsum.tmpl

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+{{define "body"}}
+    <p>Lorem ipsum dolor sit amet, consecteteur adipiscing elit nisi ultricies. Condimentum vel, at augue nibh sed. Diam praesent metus ut eros, sem penatibus. Pellentesque. Fusce odio posuere litora non integer habitant proin. Metus accumsan nibh facilisis nostra lobortis cum diam tellus. Malesuada nostra a volutpat pede primis congue nisl feugiat in fermentum. Orci in hymenaeos. Eni tempus mi mollis lacinia orci interdum lacus. Sollicitudin aliquet, etiam. Ac. Mi, nullam ligula, tristique penatibus nisi eros nisl pede pharetra congue, aptent nulla, rhoncus tellus morbi, ornare. Magna condimentum erat turpis. Fusce arcu ve suscipit nisi phasellus rutrum a dictumst leo, laoreet dui, ultricies platea. Porta venenatis fringilla vestibulum arcu etiam condimentum non.</p>
+{{end}}

go-stdlib/tmpl/main.tmpl

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+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
+<head>
+    <title>Hello World</title>
+</head>
+<body>
+
+    {{template "body" .}}
+
+</body>
+</html>