seaweedfs/unmaintained/see_dat/see_dat.go

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package main
import (
"flag"
"github.com/seaweedfs/seaweedfs/weed/util"
"time"
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"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/storage"
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
"github.com/seaweedfs/seaweedfs/weed/storage/super_block"
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)
var (
volumePath = flag.String("dir", "/tmp", "data directory to store files")
volumeCollection = flag.String("collection", "", "the volume collection name")
volumeId = flag.Int("volumeId", -1, "a volume id. The volume should already exist in the dir. The volume index file should not exist.")
)
type VolumeFileScanner4SeeDat struct {
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version needle.Version
}
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func (scanner *VolumeFileScanner4SeeDat) VisitSuperBlock(superBlock super_block.SuperBlock) error {
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scanner.version = superBlock.Version
return nil
}
func (scanner *VolumeFileScanner4SeeDat) ReadNeedleBody() bool {
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return true
}
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func (scanner *VolumeFileScanner4SeeDat) VisitNeedle(n *needle.Needle, offset int64, needleHeader, needleBody []byte) error {
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t := time.Unix(int64(n.AppendAtNs)/int64(time.Second), int64(n.AppendAtNs)%int64(time.Second))
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glog.V(0).Infof("%d,%s%x offset %d size %d(%s) cookie %x appendedAt %v",
*volumeId, n.Id, n.Cookie, offset, n.Size, util.BytesToHumanReadable(uint64(n.Size)), n.Cookie, t)
return nil
}
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func main() {
flag.Parse()
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vid := needle.VolumeId(*volumeId)
scanner := &VolumeFileScanner4SeeDat{}
err := storage.ScanVolumeFile(*volumePath, *volumeCollection, vid, storage.NeedleMapInMemory, scanner)
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if err != nil {
glog.Fatalf("Reading Volume File [ERROR] %s\n", err)
}
}