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namespace.go
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namespace.go
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/*
* Copyright (c) 2018 VMware Inc. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*
* 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 models
import (
"time"
log "github.com/Sirupsen/logrus"
"github.com/vmware/purser/pkg/controller/dgraph"
api_v1 "k8s.io/api/core/v1"
)
// Dgraph Model Constants
const (
IsNamespace = "isNamespace"
)
// Namespace schema in dgraph
type Namespace struct {
dgraph.ID
IsNamespace bool `json:"isNamespace,omitempty"`
Name string `json:"name,omitempty"`
StartTime string `json:"startTime,omitempty"`
EndTime string `json:"endTime,omitempty"`
Type string `json:"type,omitempty"`
}
func newNamespace(namespace api_v1.Namespace) Namespace {
ns := Namespace{
ID: dgraph.ID{Xid: namespace.Name},
Name: "namespace-" + namespace.Name,
IsNamespace: true,
Type: "namespace",
StartTime: namespace.GetCreationTimestamp().Time.Format(time.RFC3339),
}
nsDeletionTimestamp := namespace.GetDeletionTimestamp()
if !nsDeletionTimestamp.IsZero() {
ns.EndTime = nsDeletionTimestamp.Time.Format(time.RFC3339)
}
return ns
}
// CreateOrGetNamespaceByID returns the uid of namespace if exists,
// otherwise creates the namespace and returns uid.
func CreateOrGetNamespaceByID(xid string) string {
if xid == "" {
log.Error("Namespace is empty")
return ""
}
uid := dgraph.GetUID(xid, IsNamespace)
if uid != "" {
return uid
}
ns := Namespace{
ID: dgraph.ID{Xid: xid},
Name: xid,
IsNamespace: true,
}
assigned, err := dgraph.MutateNode(ns, dgraph.CREATE)
if err != nil {
log.Error(err)
return ""
}
log.Infof("Namespace with xid: (%s) persisted", xid)
return assigned.Uids["blank-0"]
}
// StoreNamespace create a new namespace in the Dgraph if it is not present.
func StoreNamespace(namespace api_v1.Namespace) (string, error) {
xid := namespace.Name
uid := dgraph.GetUID(xid, IsNamespace)
ns := newNamespace(namespace)
if uid != "" {
ns.UID = uid
}
assigned, err := dgraph.MutateNode(ns, dgraph.CREATE)
if err != nil {
return "", err
}
if uid == "" {
log.Infof("Namespace with xid: (%s) persisted", xid)
}
return assigned.Uids["blank-0"], nil
}