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key.go
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key.go
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// Copyright (c) 2017 Cisco and/or its affiliates.
//
// Licensed 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 namespace
import (
"fmt"
"strings"
"github.com/contiv/vpp/plugins/ksr/model/ksrkey"
)
const (
// NamespaceKeyword defines the keyword identifying Namespace data.
NamespaceKeyword = "namespace"
)
// KeyPrefix returns the key prefix used in the data-store to save
// the current state of every known K8s namespace.
func KeyPrefix() string {
return ksrkey.KeyPrefix(NamespaceKeyword)
}
// ParseNamespaceFromKey parses namespace id from the associated data-store key.
func ParseNamespaceFromKey(key string) (namespace string, err error) {
keywords := strings.Split(key, "/")
if len(keywords) == 3 && keywords[0] == ksrkey.KsrK8sPrefix && keywords[1] == NamespaceKeyword {
return keywords[2], nil
}
return "", fmt.Errorf("invalid format of the key %s", key)
}
// Key returns the key under which a configuration for the given
// namespace should be stored in the data-store.
func Key(namespace string) string {
return KeyPrefix() + namespace
}