gochart/server.go

54 lines
1.1 KiB
Go

package main
import (
//"fmt"
"net/http"
"text/template"
)
var (
ChartHandlers = make(map[string]ChartIf)
ChartFiles []string
Index int
)
func handler(w http.ResponseWriter, r *http.Request) {
tt, err := Parse(ChartFiles[Index])
if err != nil {
w.Write([]byte(err.Error()))
return
}
Index++
Index = Index % len(ChartFiles)
if t, err := template.New("foo").Parse(tt.tmpl); err != nil {
w.Write([]byte(err.Error()))
} else {
if err = t.ExecuteTemplate(w, "T", tt.args); err != nil {
w.Write([]byte(err.Error()))
}
}
}
func ListenAndServe(addr string) error {
http.HandleFunc("/", handler)
http.HandleFunc("/favicon.ico", func(w http.ResponseWriter, r *http.Request) {})
var err error
ChartFiles, err = LookupChartFiles(".")
if err != nil {
return err
}
// Register chart handlders
ChartHandlers["spline"] = new(SplineChart)
ChartHandlers["column"] = new(SplineChart)
ChartHandlers["area"] = new(SplineChart)
ChartHandlers["bar"] = new(SplineChart)
ChartHandlers["line"] = new(SplineChart)
ChartHandlers["pie"] = new(PieChart)
return http.ListenAndServe(addr, nil)
}