mirror of
https://github.com/seaweedfs/seaweedfs.git
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83 lines
2.2 KiB
Go
83 lines
2.2 KiB
Go
package broker
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import (
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"fmt"
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"github.com/seaweedfs/seaweedfs/weed/filer"
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"github.com/seaweedfs/seaweedfs/weed/operation"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/util"
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"os"
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"time"
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)
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func (b *MessageQueueBroker) appendToFile(targetFile string, data []byte) error {
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fileId, uploadResult, err2 := b.assignAndUpload(targetFile, data)
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if err2 != nil {
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return err2
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}
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// find out existing entry
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fullpath := util.FullPath(targetFile)
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dir, name := fullpath.DirAndName()
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entry, err := filer_pb.GetEntry(b, fullpath)
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var offset int64 = 0
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if err == filer_pb.ErrNotFound {
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entry = &filer_pb.Entry{
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Name: name,
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IsDirectory: false,
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Attributes: &filer_pb.FuseAttributes{
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Crtime: time.Now().Unix(),
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Mtime: time.Now().Unix(),
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FileMode: uint32(os.FileMode(0644)),
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Uid: uint32(os.Getuid()),
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Gid: uint32(os.Getgid()),
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},
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}
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} else if err != nil {
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return fmt.Errorf("find %s: %v", fullpath, err)
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} else {
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offset = int64(filer.TotalSize(entry.GetChunks()))
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}
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// append to existing chunks
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entry.Chunks = append(entry.GetChunks(), uploadResult.ToPbFileChunk(fileId, offset, time.Now().UnixNano()))
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// update the entry
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return b.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
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return filer_pb.CreateEntry(client, &filer_pb.CreateEntryRequest{
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Directory: dir,
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Entry: entry,
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})
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})
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}
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func (b *MessageQueueBroker) assignAndUpload(targetFile string, data []byte) (fileId string, uploadResult *operation.UploadResult, err error) {
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reader := util.NewBytesReader(data)
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fileId, uploadResult, err, _ = operation.UploadWithRetry(
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b,
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&filer_pb.AssignVolumeRequest{
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Count: 1,
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Replication: b.option.DefaultReplication,
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Collection: "topics",
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// TtlSec: wfs.option.TtlSec,
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// DiskType: string(wfs.option.DiskType),
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DataCenter: b.option.DataCenter,
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Path: targetFile,
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},
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&operation.UploadOption{
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Cipher: b.option.Cipher,
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},
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func(host, fileId string) string {
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fileUrl := fmt.Sprintf("http://%s/%s", host, fileId)
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if b.option.VolumeServerAccess == "filerProxy" {
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fileUrl = fmt.Sprintf("http://%s/?proxyChunkId=%s", b.currentFiler, fileId)
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}
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return fileUrl
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},
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reader,
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)
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return
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}
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