66 lines
1.0 KiB
Go
66 lines
1.0 KiB
Go
package memory
|
|
|
|
import (
|
|
"strings"
|
|
"sync"
|
|
|
|
"github.com/keel-hq/keel/cache"
|
|
)
|
|
|
|
type Cache struct {
|
|
entries map[string][]byte
|
|
mu *sync.RWMutex
|
|
}
|
|
|
|
func NewMemoryCache() *Cache {
|
|
return &Cache{
|
|
entries: make(map[string][]byte),
|
|
mu: &sync.RWMutex{},
|
|
}
|
|
|
|
}
|
|
|
|
func (c *Cache) Put(key string, value []byte) error {
|
|
c.mu.Lock()
|
|
c.entries[key] = value
|
|
c.mu.Unlock()
|
|
|
|
return nil
|
|
}
|
|
func (c *Cache) Get(key string) ([]byte, error) {
|
|
c.mu.RLock()
|
|
defer c.mu.RUnlock()
|
|
// result := make([]byte, len(k))
|
|
|
|
res, ok := c.entries[key]
|
|
if !ok {
|
|
return nil, cache.ErrNotFound
|
|
}
|
|
|
|
dst := make([]byte, len(res))
|
|
copy(dst, res)
|
|
|
|
return dst, nil
|
|
}
|
|
func (c *Cache) Delete(key string) error {
|
|
c.mu.Lock()
|
|
delete(c.entries, key)
|
|
c.mu.Unlock()
|
|
return nil
|
|
}
|
|
func (c *Cache) List(prefix string) (map[string][]byte, error) {
|
|
c.mu.RLock()
|
|
values := make(map[string][]byte)
|
|
|
|
for k, v := range c.entries {
|
|
if strings.HasPrefix(k, prefix) {
|
|
dst := make([]byte, len(v))
|
|
copy(dst, v)
|
|
values[k] = dst
|
|
}
|
|
}
|
|
|
|
c.mu.RUnlock()
|
|
return values, nil
|
|
}
|