frostfs-api-go-pogpp/pkg/netmap/policy.go
Leonard Lyubich e721734599 [#168] netmap: Implement binary and JSON encoders/decoders on Filter
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-11-13 18:07:26 +03:00

133 lines
3.4 KiB
Go

package netmap
import (
"github.com/nspcc-dev/neofs-api-go/v2/netmap"
)
// PlacementPolicy represents v2-compatible placement policy.
type PlacementPolicy netmap.PlacementPolicy
// NewPlacementPolicy creates and returns new PlacementPolicy instance.
func NewPlacementPolicy() *PlacementPolicy {
return NewPlacementPolicyFromV2(new(netmap.PlacementPolicy))
}
// NewPlacementPolicyFromV2 converts v2 PlacementPolicy to PlacementPolicy.
func NewPlacementPolicyFromV2(f *netmap.PlacementPolicy) *PlacementPolicy {
return (*PlacementPolicy)(f)
}
// ToV2 converts PlacementPolicy to v2 PlacementPolicy.
func (p *PlacementPolicy) ToV2() *netmap.PlacementPolicy {
return (*netmap.PlacementPolicy)(p)
}
// Replicas returns list of object replica descriptors.
func (p *PlacementPolicy) Replicas() []*Replica {
rs := (*netmap.PlacementPolicy)(p).
GetReplicas()
res := make([]*Replica, 0, len(rs))
for i := range rs {
res = append(res, NewReplicaFromV2(rs[i]))
}
return res
}
// SetReplicas sets list of object replica descriptors.
func (p *PlacementPolicy) SetReplicas(rs ...*Replica) {
rsV2 := make([]*netmap.Replica, 0, len(rs))
for i := range rs {
rsV2 = append(rsV2, rs[i].ToV2())
}
(*netmap.PlacementPolicy)(p).
SetReplicas(rsV2)
}
// ContainerBackupFactor returns container backup factor.
func (p *PlacementPolicy) ContainerBackupFactor() uint32 {
return (*netmap.PlacementPolicy)(p).
GetContainerBackupFactor()
}
// SetContainerBackupFactor sets container backup factor.
func (p *PlacementPolicy) SetContainerBackupFactor(f uint32) {
(*netmap.PlacementPolicy)(p).
SetContainerBackupFactor(f)
}
// Selector returns set of selectors to form the container's nodes subset.
func (p *PlacementPolicy) Selectors() []*Selector {
rs := (*netmap.PlacementPolicy)(p).
GetSelectors()
res := make([]*Selector, 0, len(rs))
for i := range rs {
res = append(res, NewSelectorFromV2(rs[i]))
}
return res
}
// SetSelectors sets set of selectors to form the container's nodes subset.
func (p *PlacementPolicy) SetSelectors(ss ...*Selector) {
rsV2 := make([]*netmap.Selector, 0, len(ss))
for i := range ss {
rsV2 = append(rsV2, ss[i].ToV2())
}
(*netmap.PlacementPolicy)(p).
SetSelectors(rsV2)
}
// Filters returns list of named filters to reference in selectors.
func (p *PlacementPolicy) Filters() []*Filter {
return filtersFromV2(
(*netmap.PlacementPolicy)(p).
GetFilters(),
)
}
// SetFilters sets list of named filters to reference in selectors.
func (p *PlacementPolicy) SetFilters(fs ...*Filter) {
(*netmap.PlacementPolicy)(p).
SetFilters(filtersToV2(fs))
}
// Marshal marshals PlacementPolicy into a protobuf binary form.
//
// Buffer is allocated when the argument is empty.
// Otherwise, the first buffer is used.
func (p *PlacementPolicy) Marshal(b ...[]byte) ([]byte, error) {
var buf []byte
if len(b) > 0 {
buf = b[0]
}
return (*netmap.PlacementPolicy)(p).
StableMarshal(buf)
}
// Unmarshal unmarshals protobuf binary representation of PlacementPolicy.
func (p *PlacementPolicy) Unmarshal(data []byte) error {
return (*netmap.PlacementPolicy)(p).
Unmarshal(data)
}
// MarshalJSON encodes PlacementPolicy to protobuf JSON format.
func (p *PlacementPolicy) MarshalJSON() ([]byte, error) {
return (*netmap.PlacementPolicy)(p).
MarshalJSON()
}
// UnmarshalJSON decodes PlacementPolicy from protobuf JSON format.
func (p *PlacementPolicy) UnmarshalJSON(data []byte) error {
return (*netmap.PlacementPolicy)(p).
UnmarshalJSON(data)
}