MyFavMirrors/minio
1
0
Fork 0
mirror of https://github.com/minio/minio.git synced 2025-11-20 01:50:24 -05:00
Code Issues Packages Projects Releases Wiki Activity

pkg/lifecycle: Add SetPredictionHeaders method (#12755)

Browse Source 
This method is used to add expected expiration and transition time 
for an object in GET/HEAD Object response headers.

Also fixed bugs in lifecycle.PredictTransitionTime and
getLifecycleTransitionTier in handling current and 
non-current versions.
This commit is contained in:
Krishnan Parthasarathi
2021-07-20 17:36:55 -07:00
committed by GitHub
parent 6ea083d197
commit d0963974a5
8 changed files with 204 additions and 59 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
internal/bucket/lifecycle/lifecycle.go
View File

@@ -21,8 +21,11 @@ import (
"encoding/xml"
"fmt"
"io"
"net/http"
"strings"
"time"
xhttp "github.com/minio/minio/internal/http"
)
var (
@@ -438,25 +441,38 @@ func (lc Lifecycle) PredictTransitionTime(obj ObjectOpts) (string, time.Time) {
return "", time.Time{}
}
var finalTransitionDate time.Time
var finalTransitionRuleID string
// Iterate over all actionable rules and find the earliest
// transition date and its associated rule ID.
var finalTransitionDate time.Time
var finalTransitionRuleID string
for _, rule := range lc.FilterActionableRules(obj) {
switch {
case !rule.Transition.IsDateNull():
if finalTransitionDate.IsZero() || finalTransitionDate.After(rule.Transition.Date.Time) {
if due, ok := rule.Transition.NextDue(obj); ok {
if finalTransitionDate.IsZero() || finalTransitionDate.After(due) {
finalTransitionRuleID = rule.ID
finalTransitionDate = rule.Transition.Date.Time
finalTransitionDate = due
}
case !rule.Transition.IsDaysNull():
expectedTransition := ExpectedExpiryTime(obj.ModTime, int(rule.Expiration.Days))
if finalTransitionDate.IsZero() || finalTransitionDate.After(expectedTransition) {
}
if due, ok := rule.NoncurrentVersionTransition.NextDue(obj); ok {
if finalTransitionDate.IsZero() || finalTransitionDate.After(due) {
finalTransitionRuleID = rule.ID
finalTransitionDate = expectedTransition
finalTransitionDate = due
}
}
}
return finalTransitionRuleID, finalTransitionDate
}
// SetPredictionHeaders sets time to expiry and transition headers on w for a
// given obj.
func (lc Lifecycle) SetPredictionHeaders(w http.ResponseWriter, obj ObjectOpts) {
if ruleID, expiry := lc.PredictExpiryTime(obj); !expiry.IsZero() {
w.Header()[xhttp.AmzExpiration] = []string{
fmt.Sprintf(`expiry-date="%s", rule-id="%s"`, expiry.Format(http.TimeFormat), ruleID),
}
}
if ruleID, transition := lc.PredictTransitionTime(obj); !transition.IsZero() {
w.Header()[xhttp.MinIOTransition] = []string{
fmt.Sprintf(`transition-date="%s", rule-id="%s"`, transition.Format(http.TimeFormat), ruleID),
}
}
}