introducing command executer

console/command_executer.go

@@ -0,0 +1,63 @@
+/*
+Rating system designed to be used in VoIP Carriers World
+Copyright (C) 2013 ITsysCOM
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>
+*/
+
+package console
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+
+	"github.com/cgrates/cgrates/apier"
+)
+
+// Commander implementation
+type CommandExecuter struct {
+	command Commander
+}
+
+func (ce *CommandExecuter) Usage() string {
+	jsn, _ := json.Marshal(ce.command.RpcParams())
+	return fmt.Sprintf("\n\tUsage: %s %s \n", ce.command.Name(), FromJSON(jsn, ce.command.ClientArgs()))
+}
+
+// Parses command line args and builds CmdBalance value
+func (ce *CommandExecuter) FromArgs(args string, verbose bool) error {
+	if len(args) == 0 {
+		return fmt.Errorf(ce.Usage())
+	}
+
+	if err := json.Unmarshal(ToJSON(args), ce.command.RpcParams()); err != nil {
+		return err
+	}
+	if verbose {
+		jsn, _ := json.Marshal(ce.command.RpcParams())
+		fmt.Println(ce.command.Name(), FromJSON(jsn, ce.command.ClientArgs()))
+	}
+	return nil
+}
+
+func (ce *CommandExecuter) ClientArgs() (args []string) {
+	val := reflect.ValueOf(&apier.AttrAddBalance{}).Elem()
+
+	for i := 0; i < val.NumField(); i++ {
+		typeField := val.Type().Field(i)
+		args = append(args, typeField.Name)
+	}
+	return
+}