change admin to toolbox & support task

toolbox/healthcheck.go

@@ -0,0 +1,43 @@
+package toolbox
+
+import (
+	"fmt"
+	"net/http"
+)
+
+//type DatabaseCheck struct {
+//}
+
+//func (dc *DatabaseCheck) Check() error {
+//	if dc.isConnected() {
+//		return nil
+//	} else {
+//		return errors.New("can't connect database")
+//	}
+//}
+
+//AddHealthCheck("database",&DatabaseCheck{})
+
+var AdminCheckList map[string]HealthChecker
+
+type HealthChecker interface {
+	Check() error
+}
+
+func AddHealthCheck(name string, hc HealthChecker) {
+	AdminCheckList[name] = hc
+}
+
+func Healthcheck(rw http.ResponseWriter, req *http.Request) {
+	for name, h := range AdminCheckList {
+		if err := h.Check(); err != nil {
+			fmt.Fprintf(rw, "%s : ok\n", name)
+		} else {
+			fmt.Fprintf(rw, "%s : %s\n", name, err.Error())
+		}
+	}
+}
+
+func init() {
+	AdminCheckList = make(map[string]HealthChecker)
+}