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113 lines
2.1 KiB
113 lines
2.1 KiB
package filer2
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import (
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"context"
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"math"
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"sync"
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"github.com/chrislusf/seaweedfs/weed/glog"
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)
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type BucketName string
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type BucketOption struct {
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Name BucketName
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Replication string
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}
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type FilerBuckets struct {
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dirBucketsPath string
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buckets map[BucketName]*BucketOption
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sync.RWMutex
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}
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func (f *Filer) LoadBuckets(dirBucketsPath string) {
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f.buckets = &FilerBuckets{
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buckets: make(map[BucketName]*BucketOption),
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}
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f.DirBucketsPath = dirBucketsPath
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limit := math.MaxInt32
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entries, err := f.ListDirectoryEntries(context.Background(), FullPath(dirBucketsPath), "", false, limit)
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if err != nil {
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glog.V(1).Infof("no buckets found: %v", err)
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return
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}
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glog.V(1).Infof("buckets found: %d", len(entries))
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f.buckets.Lock()
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for _, entry := range entries {
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f.buckets.buckets[BucketName(entry.Name())] = &BucketOption{
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Name: BucketName(entry.Name()),
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Replication: entry.Replication,
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}
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}
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f.buckets.Unlock()
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}
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func (f *Filer) ReadBucketOption(buketName string) (replication string) {
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f.buckets.RLock()
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defer f.buckets.RUnlock()
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option, found := f.buckets.buckets[BucketName(buketName)]
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if !found {
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return ""
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}
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return option.Replication
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}
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func (f *Filer) isBucket(entry *Entry) bool {
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if !entry.IsDirectory() {
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return false
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}
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parent, dirName := entry.FullPath.DirAndName()
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if parent != f.DirBucketsPath {
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return false
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}
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f.buckets.RLock()
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defer f.buckets.RUnlock()
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_, found := f.buckets.buckets[BucketName(dirName)]
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return found
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}
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func (f *Filer) maybeAddBucket(entry *Entry) {
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if !entry.IsDirectory() {
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return
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}
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parent, dirName := entry.FullPath.DirAndName()
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if parent != f.DirBucketsPath {
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return
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}
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f.addBucket(dirName, &BucketOption{
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Name: BucketName(dirName),
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Replication: entry.Replication,
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})
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}
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func (f *Filer) addBucket(buketName string, bucketOption *BucketOption) {
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f.buckets.Lock()
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defer f.buckets.Unlock()
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f.buckets.buckets[BucketName(buketName)] = bucketOption
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}
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func (f *Filer) deleteBucket(buketName string) {
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f.buckets.Lock()
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defer f.buckets.Unlock()
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delete(f.buckets.buckets, BucketName(buketName))
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}
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