func (self *Store) Op_iterate(operation *operations.Iterate) (
ret bucket.BucketReturn) {
database, err := self.Database()
if err != nil {
ret = &bucket.ReturnGeneric{retcode.NewStatusError(retcode.ErrorServer, err)}
return
}
r, err := self.createScanRangeForIterate(operation, self.State.BucketId)
if err != nil {
ret = &bucket.ReturnGeneric{retcode.NewStatusError(retcode.ErrorClient, err)}
return
}
iterator := database.NewIterator(r, nil)
defer iterator.Release()
var exhausted bool
exhausted = !iterator.First()
resultNumber := 0
var numberOfErrors uint32
numberOfErrors = 0
for !exhausted {
key, err := typescommon.PrefixedKeyBytesToKey(
self.State.BucketId, iterator.Key())
if err != nil {
numberOfErrors++
} else {
value, err := types.NewArrayFromBytes(iterator.Value())
if err != nil {
numberOfErrors++
} else {
// Ok
iterateState := new(operations.IterateState)
iterateState.ResultNumber = uint32(resultNumber)
iterateState.Key = key
iterateState.Value = value
end := operation.Function(iterateState)
if end {
break
}
}
}
resultNumber++
exhausted = iterator.Next()
exhausted = !iterator.Valid() //TODO: Why do we need this too?
}
return &operations.IterateReturn{
Status: retcode.NewStatusOk(),
NumberOfErrors: numberOfErrors,
}
}
func (self *Store) Op_get(operation *operations.Get) (ret bucket.BucketReturn) {
database, err := self.Database()
if err != nil {
return &bucket.ReturnGeneric{retcode.NewStatusError(retcode.ErrorServer, err)}
}
keyBytes := self.KeyToBytesAndPrefix(operation.Key)
value, err := database.Get(keyBytes, nil)
if err == leveldb.ErrNotFound {
return &bucket.ReturnGeneric{retcode.NewStatus(retcode.OkNotFound)}
}
if err != nil {
return &bucket.ReturnGeneric{retcode.NewStatusError(retcode.ErrorServer, err)}
}
keyConstructed, err := types.NewArrayFromBytes(value)
if err != nil {
return &bucket.ReturnGeneric{retcode.NewStatusError(retcode.ErrorServer, err)}
}
return &operations.GetReturn{
Status: retcode.NewStatusOk(),
Value: keyConstructed,
}
}
