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106 lines
2.8 KiB
106 lines
2.8 KiB
/*
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* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"bytes"
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"errors"
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"github.com/minio/minio/cmd/logger"
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"github.com/minio/minio/pkg/bucket/lifecycle"
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)
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const (
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// Disabled means the lifecycle rule is inactive
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Disabled = "Disabled"
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)
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// LifecycleSys - Bucket lifecycle subsystem.
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type LifecycleSys struct {
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bucketLifecycleMap map[string]*lifecycle.Lifecycle
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}
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// Get - gets lifecycle config associated to a given bucket name.
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func (sys *LifecycleSys) Get(bucketName string) (lc *lifecycle.Lifecycle, err error) {
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if globalIsGateway {
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objAPI := newObjectLayerWithoutSafeModeFn()
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if objAPI == nil {
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return nil, errServerNotInitialized
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}
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return nil, BucketLifecycleNotFound{Bucket: bucketName}
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}
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lc, ok := sys.bucketLifecycleMap[bucketName]
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if !ok {
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configData, err := globalBucketMetadataSys.GetConfig(bucketName, bucketLifecycleConfig)
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if err != nil {
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if errors.Is(err, errConfigNotFound) {
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return nil, BucketLifecycleNotFound{Bucket: bucketName}
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}
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return nil, err
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}
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return lifecycle.ParseLifecycleConfig(bytes.NewReader(configData))
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}
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return lc, nil
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}
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// NewLifecycleSys - creates new lifecycle system.
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func NewLifecycleSys() *LifecycleSys {
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return &LifecycleSys{
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bucketLifecycleMap: make(map[string]*lifecycle.Lifecycle),
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}
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}
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// Init - initializes lifecycle system from lifecycle.xml of all buckets.
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func (sys *LifecycleSys) Init(buckets []BucketInfo, objAPI ObjectLayer) error {
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if objAPI == nil {
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return errServerNotInitialized
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}
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// In gateway mode, we always fetch the bucket lifecycle configuration from the gateway backend.
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// So, this is a no-op for gateway servers.
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if globalIsGateway {
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return nil
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}
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// Load LifecycleSys once during boot.
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return sys.load(buckets, objAPI)
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}
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// Loads lifecycle policies for all buckets into LifecycleSys.
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func (sys *LifecycleSys) load(buckets []BucketInfo, objAPI ObjectLayer) error {
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for _, bucket := range buckets {
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configData, err := globalBucketMetadataSys.GetConfig(bucket.Name, bucketLifecycleConfig)
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if err != nil {
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if errors.Is(err, errConfigNotFound) {
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continue
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}
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return err
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}
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config, err := lifecycle.ParseLifecycleConfig(bytes.NewReader(configData))
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if err != nil {
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logger.LogIf(GlobalContext, err)
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continue
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}
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sys.bucketLifecycleMap[bucket.Name] = config
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}
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return nil
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}
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