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namespace_name.go
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/
namespace_name.go
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package utils
import (
"fmt"
"regexp"
"strings"
"github.com/pkg/errors"
)
type NameSpaceName struct {
tenant string
nameSpace string
}
func GetNameSpaceName(tenant, namespace string) (*NameSpaceName, error) {
return GetNamespaceName(fmt.Sprintf("%s/%s", tenant, namespace))
}
func GetNamespaceName(completeName string) (*NameSpaceName, error) {
var n NameSpaceName
if completeName == "" {
return nil, errors.New("the namespace complete name is empty")
}
parts := strings.Split(completeName, "/")
if len(parts) == 2 {
n.tenant = parts[0]
n.nameSpace = parts[1]
err := validateNamespaceName(n.tenant, n.nameSpace)
if err != nil {
return nil, err
}
} else {
return nil, errors.Errorf("The complete name of namespace is invalid. complete name : [%s]", completeName)
}
return &n, nil
}
func (n *NameSpaceName) String() string {
return fmt.Sprintf("%s/%s", n.tenant, n.nameSpace)
}
func validateNamespaceName(tenant, namespace string) error {
if tenant == "" || namespace == "" {
return errors.Errorf("Invalid tenant or namespace. [%s/%s]", tenant, namespace)
}
ok := CheckName(tenant)
if !ok {
return errors.Errorf("Tenant name include unsupported special chars. tenant : [%s]", tenant)
}
ok = CheckName(namespace)
if !ok {
return errors.Errorf("Namespace name include unsupported special chars. namespace : [%s]", namespace)
}
return nil
}
// allowed characters for property, namespace, cluster and topic
// names are alphanumeric (a-zA-Z0-9) and these special chars -=:.
// and % is allowed as part of valid URL encoding
var patten = regexp.MustCompile(`^[-=:.\w]*$`)
func CheckName(name string) bool {
return patten.MatchString(name)
}