forked from pachyderm/pachyderm
/
obj_block_api_server.go
232 lines (215 loc) · 6.78 KB
/
obj_block_api_server.go
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package server
import (
"bufio"
"fmt"
"io/ioutil"
"sync"
"time"
"go.pedge.io/pb/go/google/protobuf"
"go.pedge.io/proto/rpclog"
"go.pedge.io/proto/stream"
"golang.org/x/net/context"
"github.com/gogo/protobuf/proto"
pfsclient "github.com/pachyderm/pachyderm/src/client/pfs"
"github.com/pachyderm/pachyderm/src/server/pkg/obj"
)
type objBlockAPIServer struct {
protorpclog.Logger
dir string
localServer *localBlockAPIServer
objClient obj.Client
}
func newObjBlockAPIServer(dir string, objClient obj.Client) (*objBlockAPIServer, error) {
localServer, err := newLocalBlockAPIServer(dir)
if err != nil {
return nil, err
}
return &objBlockAPIServer{
Logger: protorpclog.NewLogger("pachyderm.pfsclient.objBlockAPIServer"),
dir: dir,
localServer: localServer,
objClient: objClient,
}, nil
}
func newAmazonBlockAPIServer(dir string) (*objBlockAPIServer, error) {
bucket, err := ioutil.ReadFile("/amazon-secret/bucket")
if err != nil {
return nil, err
}
id, err := ioutil.ReadFile("/amazon-secret/id")
if err != nil {
return nil, err
}
secret, err := ioutil.ReadFile("/amazon-secret/secret")
if err != nil {
return nil, err
}
token, err := ioutil.ReadFile("/amazon-secret/token")
if err != nil {
return nil, err
}
region, err := ioutil.ReadFile("/amazon-secret/region")
if err != nil {
return nil, err
}
objClient, err := obj.NewAmazonClient(string(bucket), string(id), string(secret), string(token), string(region))
if err != nil {
return nil, err
}
return newObjBlockAPIServer(dir, objClient)
}
func newGoogleBlockAPIServer(dir string) (*objBlockAPIServer, error) {
bucket, err := ioutil.ReadFile("/google-secret/bucket")
if err != nil {
return nil, err
}
objClient, err := obj.NewGoogleClient(context.Background(), string(bucket))
if err != nil {
return nil, err
}
return newObjBlockAPIServer(dir, objClient)
}
func (s *objBlockAPIServer) PutBlock(putBlockServer pfsclient.BlockAPI_PutBlockServer) (retErr error) {
result := &pfsclient.BlockRefs{}
defer func(start time.Time) { s.Log(nil, result, retErr, time.Since(start)) }(time.Now())
reader := bufio.NewReader(protostream.NewStreamingBytesReader(putBlockServer))
var wg sync.WaitGroup
errCh := make(chan error, 1)
for {
blockRef, data, err := readBlock(reader)
if err != nil {
return err
}
result.BlockRef = append(result.BlockRef, blockRef)
wg.Add(1)
go func() {
defer wg.Done()
writer, err := s.objClient.Writer(s.localServer.blockPath(blockRef.Block))
if err != nil {
select {
case errCh <- err:
// error reported
default:
// not the first error
}
return
}
defer func() {
if err := writer.Close(); err != nil {
select {
case errCh <- err:
// error reported
default:
// not the first error
}
return
}
}()
if _, err := writer.Write(data); err != nil {
select {
case errCh <- err:
// error reported
default:
// not the first error
}
return
}
}()
if (blockRef.Range.Upper - blockRef.Range.Lower) < uint64(blockSize) {
break
}
}
wg.Wait()
select {
case err := <-errCh:
return err
default:
}
return putBlockServer.SendAndClose(result)
}
func (s *objBlockAPIServer) GetBlock(request *pfsclient.GetBlockRequest, getBlockServer pfsclient.BlockAPI_GetBlockServer) (retErr error) {
defer func(start time.Time) { s.Log(request, nil, retErr, time.Since(start)) }(time.Now())
reader, err := s.objClient.Reader(s.localServer.blockPath(request.Block), request.OffsetBytes, request.SizeBytes)
if err != nil {
return err
}
defer func() {
if err := reader.Close(); err != nil && retErr == nil {
retErr = err
}
}()
return protostream.WriteToStreamingBytesServer(reader, getBlockServer)
}
func (s *objBlockAPIServer) DeleteBlock(ctx context.Context, request *pfsclient.DeleteBlockRequest) (response *google_protobuf.Empty, retErr error) {
defer func(start time.Time) { s.Log(request, response, retErr, time.Since(start)) }(time.Now())
return google_protobuf.EmptyInstance, s.objClient.Delete(s.localServer.blockPath(request.Block))
}
func (s *objBlockAPIServer) InspectBlock(ctx context.Context, request *pfsclient.InspectBlockRequest) (response *pfsclient.BlockInfo, retErr error) {
return nil, fmt.Errorf("not implemented")
}
func (s *objBlockAPIServer) ListBlock(ctx context.Context, request *pfsclient.ListBlockRequest) (response *pfsclient.BlockInfos, retErr error) {
defer func(start time.Time) { s.Log(request, response, retErr, time.Since(start)) }(time.Now())
return nil, fmt.Errorf("not implemented")
}
func (s *objBlockAPIServer) CreateDiff(ctx context.Context, request *pfsclient.DiffInfo) (response *google_protobuf.Empty, retErr error) {
defer func(start time.Time) { s.Log(request, response, retErr, time.Since(start)) }(time.Now())
data, err := proto.Marshal(request)
if err != nil {
return nil, err
}
writer, err := s.objClient.Writer(s.localServer.diffPath(request.Diff))
if err != nil {
return nil, err
}
defer func() {
if err := writer.Close(); err != nil && retErr == nil {
retErr = err
}
}()
if _, err := writer.Write(data); err != nil {
return nil, err
}
return google_protobuf.EmptyInstance, nil
}
func (s *objBlockAPIServer) InspectDiff(ctx context.Context, request *pfsclient.InspectDiffRequest) (response *pfsclient.DiffInfo, retErr error) {
defer func(start time.Time) { s.Log(request, response, retErr, time.Since(start)) }(time.Now())
return s.readDiff(request.Diff)
}
func (s *objBlockAPIServer) ListDiff(request *pfsclient.ListDiffRequest, listDiffServer pfsclient.BlockAPI_ListDiffServer) (retErr error) {
defer func(start time.Time) { s.Log(request, nil, retErr, time.Since(start)) }(time.Now())
if err := s.objClient.Walk(s.localServer.diffDir(), func(path string) error {
diff := s.localServer.pathToDiff(path)
if diff == nil {
return fmt.Errorf("couldn't parse %s", path)
}
if diff.Shard == request.Shard {
diffInfo, err := s.readDiff(diff)
if err != nil {
return err
}
if err := listDiffServer.Send(diffInfo); err != nil {
return err
}
}
return nil
}); err != nil {
return err
}
return nil
}
func (s *objBlockAPIServer) DeleteDiff(ctx context.Context, request *pfsclient.DeleteDiffRequest) (response *google_protobuf.Empty, retErr error) {
defer func(start time.Time) { s.Log(request, response, retErr, time.Since(start)) }(time.Now())
return google_protobuf.EmptyInstance, s.objClient.Delete(s.localServer.diffPath(request.Diff))
}
func (s *objBlockAPIServer) readDiff(diff *pfsclient.Diff) (*pfsclient.DiffInfo, error) {
reader, err := s.objClient.Reader(s.localServer.diffPath(diff), 0, 0)
if err != nil {
return nil, err
}
data, err := ioutil.ReadAll(reader)
result := &pfsclient.DiffInfo{}
if err := proto.Unmarshal(data, result); err != nil {
return nil, err
}
return result, nil
}