130 lines
4.1 KiB
Go
130 lines
4.1 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package lifecycle
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import (
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"encoding/xml"
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"time"
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)
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// NoncurrentVersionExpiration - an action for lifecycle configuration rule.
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type NoncurrentVersionExpiration struct {
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XMLName xml.Name `xml:"NoncurrentVersionExpiration"`
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NoncurrentDays ExpirationDays `xml:"NoncurrentDays,omitempty"`
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set bool
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}
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// MarshalXML if non-current days not set to non zero value
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func (n NoncurrentVersionExpiration) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
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if n.IsDaysNull() {
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return nil
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}
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type noncurrentVersionExpirationWrapper NoncurrentVersionExpiration
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return e.EncodeElement(noncurrentVersionExpirationWrapper(n), start)
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}
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// UnmarshalXML decodes NoncurrentVersionExpiration
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func (n *NoncurrentVersionExpiration) UnmarshalXML(d *xml.Decoder, startElement xml.StartElement) error {
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type noncurrentVersionExpirationWrapper NoncurrentVersionExpiration
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var val noncurrentVersionExpirationWrapper
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err := d.DecodeElement(&val, &startElement)
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if err != nil {
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return err
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}
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*n = NoncurrentVersionExpiration(val)
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n.set = true
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return nil
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}
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// IsDaysNull returns true if days field is null
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func (n NoncurrentVersionExpiration) IsDaysNull() bool {
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return n.NoncurrentDays == ExpirationDays(0)
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}
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// Validate returns an error with wrong value
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func (n NoncurrentVersionExpiration) Validate() error {
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if !n.set {
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return nil
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}
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val := int(n.NoncurrentDays)
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if val <= 0 {
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return errXMLNotWellFormed
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}
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return nil
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}
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// NoncurrentVersionTransition - an action for lifecycle configuration rule.
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type NoncurrentVersionTransition struct {
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NoncurrentDays TransitionDays `xml:"NoncurrentDays"`
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StorageClass string `xml:"StorageClass"`
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set bool
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}
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// MarshalXML is extended to leave out
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// <NoncurrentVersionTransition></NoncurrentVersionTransition> tags
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func (n NoncurrentVersionTransition) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
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if n.IsNull() {
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return nil
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}
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type noncurrentVersionTransitionWrapper NoncurrentVersionTransition
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return e.EncodeElement(noncurrentVersionTransitionWrapper(n), start)
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}
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// UnmarshalXML decodes NoncurrentVersionExpiration
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func (n *NoncurrentVersionTransition) UnmarshalXML(d *xml.Decoder, startElement xml.StartElement) error {
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type noncurrentVersionTransitionWrapper NoncurrentVersionTransition
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var val noncurrentVersionTransitionWrapper
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err := d.DecodeElement(&val, &startElement)
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if err != nil {
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return err
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}
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*n = NoncurrentVersionTransition(val)
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n.set = true
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return nil
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}
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// IsNull returns true if NoncurrentTransition doesn't refer to any storage-class.
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// Note: It supports immediate transition, i.e zero noncurrent days.
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func (n NoncurrentVersionTransition) IsNull() bool {
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return n.StorageClass == ""
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}
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// Validate returns an error with wrong value
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func (n NoncurrentVersionTransition) Validate() error {
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if !n.set {
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return nil
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}
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if n.StorageClass == "" {
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return errXMLNotWellFormed
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}
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return nil
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}
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// NextDue returns upcoming NoncurrentVersionTransition date for obj if
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// applicable, returns false otherwise.
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func (n NoncurrentVersionTransition) NextDue(obj ObjectOpts) (time.Time, bool) {
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if obj.IsLatest || n.StorageClass == "" {
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return time.Time{}, false
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}
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// Days == 0 indicates immediate tiering, i.e object is eligible for tiering since it became noncurrent.
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if n.NoncurrentDays == 0 {
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return obj.SuccessorModTime, true
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}
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return ExpectedExpiryTime(obj.SuccessorModTime, int(n.NoncurrentDays)), true
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}
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