/
logging_store.go
66 lines (53 loc) · 1.73 KB
/
logging_store.go
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package storage
import (
"encoding/base64"
"fmt"
"github.com/go-kit/kit/log"
"github.com/monax/hoard/logging"
)
type loggingStore struct {
store NamedStore
logger log.Logger
}
// Decorates a Store with some simple logging of method/address pairs
func NewLoggingStore(store NamedStore, logger log.Logger) *loggingStore {
inv := &loggingStore{
store: store,
logger: logging.TraceLogger(log.With(logger, "module", "storage")),
}
inv.logger = log.With(inv.logger, "store", inv.Name())
return inv
}
var _ NamedStore = (*loggingStore)(nil)
func (inv *loggingStore) Put(address []byte, data []byte) ([]byte, error) {
address, err := inv.store.Put(address, data)
return address, logErrorOrSuccess(log.With(inv.logger, "method", "Put", "address",
formatAddress(address)), err)
}
func (inv *loggingStore) Get(address []byte) ([]byte, error) {
data, err := inv.store.Get(address)
return data, logErrorOrSuccess(log.With(inv.logger, "method", "Get", "address",
formatAddress(address)), err)
}
func (inv *loggingStore) Stat(address []byte) (*StatInfo, error) {
statInfo, err := inv.store.Stat(address)
return statInfo, logErrorOrSuccess(log.With(inv.logger, "method", "Stat", "address",
formatAddress(address)), err)
}
func (inv *loggingStore) Location(address []byte) string {
inv.logger.Log("method", "Location", "address", formatAddress(address))
return inv.store.Location(address)
}
func (inv *loggingStore) Name() string {
return fmt.Sprintf("loggingStore(%s)", inv.store.Name())
}
func logErrorOrSuccess(logger log.Logger, err error) error {
err = logging.Err(logger, err)
if err == nil {
logging.Msg(logger, "Success")
}
return err
}
func formatAddress(address []byte) string {
return base64.StdEncoding.EncodeToString(address)
}