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memory.go
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memory.go
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//
// Copyright (c) 2021 Red Hat, Inc.
// 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 memorystorage
import (
"context"
"fmt"
"sync"
"github.com/redhat-appstudio/remote-secret/pkg/logs"
"sigs.k8s.io/controller-runtime/pkg/log"
"github.com/redhat-appstudio/remote-secret/pkg/secretstorage"
)
type MemoryStorage struct {
// Data is the map of stored data.
Data map[secretstorage.SecretID][]byte
// ErrorOnInitialize if not nil, the error is thrown when the Initialize method is called.
ErrorOnInitialize error
// ErrorOnStore if not nil, the error is thrown when the Store method is called.
ErrorOnStore error
// ErrorOnGet if not nil, the error is thrown when the Get method is called.
ErrorOnGet error
// ErrorOnDelete if not nil, the error is thrown when the Delete method is called.
ErrorOnDelete error
lock sync.RWMutex
}
// Delete implements secretstorage.SecretStorage
func (m *MemoryStorage) Delete(ctx context.Context, id secretstorage.SecretID) error {
lg := log.FromContext(ctx)
lg.V(logs.DebugLevel).Info("delete", "id", id)
if m.ErrorOnDelete != nil {
return m.ErrorOnDelete
}
m.lock.Lock()
defer m.lock.Unlock()
m.ensureTokens()
delete(m.Data, id)
return nil
}
// Get implements secretstorage.SecretStorage
func (m *MemoryStorage) Get(ctx context.Context, id secretstorage.SecretID) ([]byte, error) {
lg := log.FromContext(ctx)
lg.V(logs.DebugLevel).Info("get", "id", id)
if m.ErrorOnGet != nil {
return nil, m.ErrorOnGet
}
m.lock.RLock()
defer m.lock.RUnlock()
m.ensureTokens()
data, ok := m.Data[id]
if !ok {
return nil, fmt.Errorf("%w", secretstorage.NotFoundError)
}
return data, nil
}
// Initialize implements secretstorage.SecretStorage
func (m *MemoryStorage) Initialize(ctx context.Context) error {
if m.ErrorOnInitialize != nil {
return m.ErrorOnInitialize
}
m.lock.Lock()
defer m.lock.Unlock()
m.Data = map[secretstorage.SecretID][]byte{}
return nil
}
// Store implements secretstorage.SecretStorage
func (m *MemoryStorage) Store(ctx context.Context, id secretstorage.SecretID, data []byte) error {
lg := log.FromContext(ctx)
lg.V(logs.DebugLevel).Info("store", "id", id)
if m.ErrorOnStore != nil {
return m.ErrorOnStore
}
m.lock.Lock()
defer m.lock.Unlock()
m.ensureTokens()
m.Data[id] = data
return nil
}
func (m *MemoryStorage) Len() int {
m.ensureTokens()
return len(m.Data)
}
func (m *MemoryStorage) Reset() {
m.Data = map[secretstorage.SecretID][]byte{}
}
func (m *MemoryStorage) Examine(ctx context.Context) error {
return nil
}
func (m *MemoryStorage) ensureTokens() {
if m.Data == nil {
m.Data = map[secretstorage.SecretID][]byte{}
}
}
var _ secretstorage.SecretStorage = (*MemoryStorage)(nil)