Added *join dataconverter

utils/consts.go

@@ -638,6 +638,7 @@ const (
 	MetaSIPURIUser          = "*sipuri_user"
 	E164DomainConverter     = "*e164Domain"
 	E164Converter           = "*e164"
+	MetaJoin                = "*join"
 	MetaReload              = "*reload"
 	MetaLoad                = "*load"
 	MetaFloat64             = "*float64"

utils/dataconverter.go

@@ -115,6 +115,11 @@ func NewDataConverter(params string) (conv DataConverter, err error) {
 			return NewRandomConverter(EmptyString)
 		}
 		return NewRandomConverter(params[len(MetaRandom)+1:])
+	case strings.HasPrefix(params, MetaJoin):
+		if len(params) == len(MetaJoin) { // no extra params, defaults implied
+			return joinConverter(FieldsSep), nil
+		}
+		return joinConverter(params[len(MetaJoin)+1:]), nil
 	default:
 		return nil, fmt.Errorf("unsupported converter definition: <%s>", params)
 	}
@@ -573,3 +578,13 @@ func (e164Converter) Convert(in interface{}) (interface{}, error) {
 	return ReverseString(
 		strings.Replace(name[:i], ".", "", -1)), nil
 }
+
+type joinConverter string
+
+func (j joinConverter) Convert(in interface{}) (interface{}, error) {
+	slice, err := IfaceAsStringSlice(in)
+	if err != nil {
+		return nil, err
+	}
+	return strings.Join(slice, string(j)), nil
+}

utils/dataconverter_test.go

@@ -1251,3 +1251,27 @@ func TestDataConverterE164Convert(t *testing.T) {
 		t.Errorf("Expected 'unknown format' error")
 	}
 }
+
+func TestJoinConverter(t *testing.T) {
+	d, err := NewDataConverter(MetaJoin)
+	if err != nil {
+		t.Fatal(err)
+	}
+	expVal := "1,2,3,5"
+	if i, err := d.Convert("1;2;3;5"); err != nil {
+		t.Error(err.Error())
+	} else if expVal != i {
+		t.Errorf("expecting: %q, received: %q", expVal, i)
+	}
+
+	d, err = NewDataConverter(MetaJoin + ":|")
+	if err != nil {
+		t.Fatal(err)
+	}
+	expVal = "1|2|3|5"
+	if i, err := d.Convert("1;2;3;5"); err != nil {
+		t.Error(err.Error())
+	} else if expVal != i {
+		t.Errorf("expecting: %q, received: %q", expVal, i)
+	}
+}