mirror of
https://github.com/arangodb/kube-arangodb.git
synced 2024-12-15 17:51:03 +00:00
93 lines
2.5 KiB
Go
93 lines
2.5 KiB
Go
//
|
|
// DISCLAIMER
|
|
//
|
|
// Copyright 2018 ArangoDB GmbH, Cologne, Germany
|
|
//
|
|
// 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.
|
|
//
|
|
// Copyright holder is ArangoDB GmbH, Cologne, Germany
|
|
//
|
|
// Author Ewout Prangsma
|
|
//
|
|
|
|
package deployment
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"sync"
|
|
|
|
"k8s.io/client-go/kubernetes"
|
|
|
|
driver "github.com/arangodb/go-driver"
|
|
api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1alpha"
|
|
"github.com/arangodb/kube-arangodb/pkg/util/arangod"
|
|
)
|
|
|
|
type clientCache struct {
|
|
mutex sync.Mutex
|
|
clients map[string]driver.Client
|
|
kubecli kubernetes.Interface
|
|
apiObject *api.ArangoDeployment
|
|
databaseClient driver.Client
|
|
}
|
|
|
|
// newClientCache creates a new client cache
|
|
func newClientCache(kubecli kubernetes.Interface, apiObject *api.ArangoDeployment) *clientCache {
|
|
return &clientCache{
|
|
clients: make(map[string]driver.Client),
|
|
kubecli: kubecli,
|
|
apiObject: apiObject,
|
|
}
|
|
}
|
|
|
|
// Get a cached client for the given ID in the given group, creating one
|
|
// if needed.
|
|
func (cc *clientCache) Get(ctx context.Context, group api.ServerGroup, id string) (driver.Client, error) {
|
|
cc.mutex.Lock()
|
|
defer cc.mutex.Unlock()
|
|
|
|
key := fmt.Sprintf("%d-%s", group, id)
|
|
c, found := cc.clients[key]
|
|
if found {
|
|
return c, nil
|
|
}
|
|
|
|
// Not found, create a new client
|
|
c, err := arangod.CreateArangodClient(ctx, cc.kubecli.CoreV1(), cc.apiObject, group, id)
|
|
if err != nil {
|
|
return nil, maskAny(err)
|
|
}
|
|
cc.clients[key] = c
|
|
return c, nil
|
|
}
|
|
|
|
// GetDatabase returns a cached client for the entire database (cluster coordinators or single server),
|
|
// creating one if needed.
|
|
func (cc *clientCache) GetDatabase(ctx context.Context) (driver.Client, error) {
|
|
cc.mutex.Lock()
|
|
defer cc.mutex.Unlock()
|
|
|
|
if c := cc.databaseClient; c != nil {
|
|
return c, nil
|
|
}
|
|
|
|
// Not found, create a new client
|
|
shortTimeout := false
|
|
c, err := arangod.CreateArangodDatabaseClient(ctx, cc.kubecli.CoreV1(), cc.apiObject, shortTimeout)
|
|
if err != nil {
|
|
return nil, maskAny(err)
|
|
}
|
|
cc.databaseClient = c
|
|
return c, nil
|
|
}
|