forked from TrueCloudLab/frostfs-api-go
68 lines
1.7 KiB
Go
68 lines
1.7 KiB
Go
package refs
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import (
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"crypto/sha256"
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"strings"
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"github.com/nspcc-dev/neofs-api-go/internal"
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)
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const (
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joinSeparator = "/"
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// ErrWrongAddress is raised when wrong address is passed to Address.Parse ParseAddress.
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ErrWrongAddress = internal.Error("wrong address")
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// ErrEmptyAddress is raised when empty address is passed to Address.Parse ParseAddress.
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ErrEmptyAddress = internal.Error("empty address")
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)
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// ParseAddress parses address from string representation into new Address.
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func ParseAddress(str string) (*Address, error) {
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var addr Address
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return &addr, addr.Parse(str)
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}
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// Parse parses address from string representation into current Address.
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func (m *Address) Parse(addr string) error {
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if m == nil {
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return ErrEmptyAddress
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}
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items := strings.Split(addr, joinSeparator)
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if len(items) != 2 {
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return ErrWrongAddress
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}
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if err := m.CID.Parse(items[0]); err != nil {
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return err
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} else if err := m.ObjectID.Parse(items[1]); err != nil {
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return err
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}
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return nil
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}
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// String returns string representation of Address.
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func (m Address) String() string {
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return strings.Join([]string{m.CID.String(), m.ObjectID.String()}, joinSeparator)
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}
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// IsFull checks that ContainerID and ObjectID is not empty.
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func (m Address) IsFull() bool {
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return !m.CID.Empty() && !m.ObjectID.Empty()
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}
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// Equal checks that current Address is equal to passed Address.
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func (m Address) Equal(a2 *Address) bool {
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return m.CID.Equal(a2.CID) && m.ObjectID.Equal(a2.ObjectID)
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}
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// Hash returns []byte that used as a key for storage bucket.
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func (m Address) Hash() ([]byte, error) {
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if !m.IsFull() {
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return nil, ErrEmptyAddress
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}
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h := sha256.Sum256(append(m.ObjectID.Bytes(), m.CID.Bytes()...))
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return h[:], nil
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}
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