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api_server.go
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api_server.go
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package server
import (
"bytes"
"fmt"
"io"
"net/http"
"strconv"
"time"
"github.com/pachyderm/pachyderm/src/client/pfs"
"github.com/pachyderm/pachyderm/src/server/pfs/drive"
"go.pedge.io/pb/go/google/protobuf"
"go.pedge.io/proto/rpclog"
"go.pedge.io/proto/stream"
"golang.org/x/net/context"
"google.golang.org/grpc"
"google.golang.org/grpc/metadata"
)
var (
grpcErrorf = grpc.Errorf // needed to get passed govet
)
type apiServer struct {
protorpclog.Logger
driver drive.Driver
}
func newAPIServer(driver drive.Driver) *apiServer {
return &apiServer{
Logger: protorpclog.NewLogger("pachyderm.pfsserver.API"),
driver: driver,
}
}
func (a *apiServer) CreateRepo(ctx context.Context, request *pfs.CreateRepoRequest) (response *google_protobuf.Empty, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
if err := a.driver.CreateRepo(request.Repo, request.Provenance); err != nil {
return nil, err
}
return google_protobuf.EmptyInstance, nil
}
func (a *apiServer) InspectRepo(ctx context.Context, request *pfs.InspectRepoRequest) (response *pfs.RepoInfo, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
return a.driver.InspectRepo(request.Repo)
}
func (a *apiServer) ListRepo(ctx context.Context, request *pfs.ListRepoRequest) (response *pfs.RepoInfos, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
repoInfos, err := a.driver.ListRepo(request.Provenance)
return &pfs.RepoInfos{RepoInfo: repoInfos}, err
}
func (a *apiServer) DeleteRepo(ctx context.Context, request *pfs.DeleteRepoRequest) (response *google_protobuf.Empty, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
err := a.driver.DeleteRepo(request.Repo, request.Force)
if err != nil {
return nil, err
}
return google_protobuf.EmptyInstance, nil
}
func (a *apiServer) StartCommit(ctx context.Context, request *pfs.StartCommitRequest) (response *pfs.Commit, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
commit, err := a.driver.StartCommit(request.Repo, request.ID, request.ParentID, request.Branch, request.Started, request.Provenance)
if err != nil {
return nil, err
}
return commit, nil
}
func (a *apiServer) FinishCommit(ctx context.Context, request *pfs.FinishCommitRequest) (response *google_protobuf.Empty, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
if err := a.driver.FinishCommit(request.Commit, request.Finished, request.Cancel); err != nil {
return nil, err
}
return google_protobuf.EmptyInstance, nil
}
func (a *apiServer) ArchiveCommit(ctx context.Context, request *pfs.ArchiveCommitRequest) (response *google_protobuf.Empty, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
if err := a.driver.ArchiveCommit(request.Commits); err != nil {
return nil, err
}
return google_protobuf.EmptyInstance, nil
}
func (a *apiServer) InspectCommit(ctx context.Context, request *pfs.InspectCommitRequest) (response *pfs.CommitInfo, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
return a.driver.InspectCommit(request.Commit)
}
func (a *apiServer) ListCommit(ctx context.Context, request *pfs.ListCommitRequest) (response *pfs.CommitInfos, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
commitInfos, err := a.driver.ListCommit(request.Repo, request.CommitType,
request.FromCommit, request.Provenance, request.Status, request.Block)
if err != nil {
return nil, err
}
return &pfs.CommitInfos{
CommitInfo: commitInfos,
}, nil
}
func (a *apiServer) Merge(ctx context.Context, request *pfs.MergeRequest) (response *pfs.Commits, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
return a.driver.Merge(request.Repo, request.FromCommits, request.To, request.Strategy, request.Cancel)
}
func (a *apiServer) ListBranch(ctx context.Context, request *pfs.ListBranchRequest) (response *pfs.CommitInfos, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
commitInfos, err := a.driver.ListBranch(request.Repo)
if err != nil {
return nil, err
}
return &pfs.CommitInfos{
CommitInfo: commitInfos,
}, nil
}
func (a *apiServer) DeleteCommit(ctx context.Context, request *pfs.DeleteCommitRequest) (response *google_protobuf.Empty, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
if err := a.driver.DeleteCommit(request.Commit); err != nil {
return nil, err
}
return google_protobuf.EmptyInstance, nil
}
func (a *apiServer) FlushCommit(ctx context.Context, request *pfs.FlushCommitRequest) (response *pfs.CommitInfos, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
commitInfos, err := a.driver.FlushCommit(request.Commit, request.ToRepo)
if err != nil {
return nil, err
}
return &pfs.CommitInfos{
CommitInfo: commitInfos,
}, nil
}
func (a *apiServer) PutFile(putFileServer pfs.API_PutFileServer) (retErr error) {
var request *pfs.PutFileRequest
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) {
if request != nil {
request.Value = nil // we set the value to nil so as not to spam logs
}
a.Log(request, nil, retErr, time.Since(start))
}(time.Now())
defer drainFileServer(putFileServer)
defer func() {
if err := putFileServer.SendAndClose(google_protobuf.EmptyInstance); err != nil && retErr == nil {
retErr = err
}
}()
request, err := putFileServer.Recv()
if err != nil && err != io.EOF {
return err
}
if err == io.EOF {
// tolerate people calling and immediately hanging up
return nil
}
if request.FileType == pfs.FileType_FILE_TYPE_DIR {
if len(request.Value) > 0 {
return fmt.Errorf("PutFileRequest shouldn't have type dir and a value")
}
if err := a.driver.MakeDirectory(request.File); err != nil {
return err
}
} else {
var r io.Reader
var delimiter pfs.Delimiter
if request.Url != "" {
resp, err := http.Get(request.Url)
if err != nil {
return err
}
defer func() {
if err := resp.Body.Close(); err != nil && retErr == nil {
retErr = err
}
}()
r = resp.Body
switch resp.Header.Get("Content-Type") {
case "application/json":
delimiter = pfs.Delimiter_JSON
case "application/text":
delimiter = pfs.Delimiter_LINE
default:
delimiter = pfs.Delimiter_NONE
}
} else {
reader := putFileReader{
server: putFileServer,
}
_, err = reader.buffer.Write(request.Value)
if err != nil {
return err
}
r = &reader
delimiter = request.Delimiter
}
if err := a.driver.PutFile(request.File, delimiter, r); err != nil {
return err
}
}
return nil
}
func (a *apiServer) GetFile(request *pfs.GetFileRequest, apiGetFileServer pfs.API_GetFileServer) (retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, nil, retErr, time.Since(start)) }(time.Now())
file, err := a.driver.GetFile(request.File, request.Shard, request.OffsetBytes, request.SizeBytes, request.DiffMethod)
if err != nil {
return err
}
defer func() {
if err := file.Close(); err != nil && retErr == nil {
retErr = err
}
}()
return protostream.WriteToStreamingBytesServer(file, apiGetFileServer)
}
func (a *apiServer) InspectFile(ctx context.Context, request *pfs.InspectFileRequest) (response *pfs.FileInfo, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
return a.driver.InspectFile(request.File, request.Shard, request.DiffMethod)
}
func (a *apiServer) ListFile(ctx context.Context, request *pfs.ListFileRequest) (response *pfs.FileInfos, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
fileInfos, err := a.driver.ListFile(request.File, request.Shard,
request.DiffMethod, request.Recurse)
if err != nil {
return nil, err
}
return &pfs.FileInfos{
FileInfo: fileInfos,
}, nil
}
func (a *apiServer) DeleteFile(ctx context.Context, request *pfs.DeleteFileRequest) (response *google_protobuf.Empty, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
err := a.driver.DeleteFile(request.File)
if err != nil {
return nil, err
}
return google_protobuf.EmptyInstance, nil
}
func (a *apiServer) DeleteAll(ctx context.Context, request *google_protobuf.Empty) (response *google_protobuf.Empty, retErr error) {
func() { a.Log(request, nil, nil, 0) }()
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
if err := a.driver.DeleteAll(); err != nil {
return nil, err
}
return google_protobuf.EmptyInstance, nil
}
func (a *apiServer) ArchiveAll(ctx context.Context, request *google_protobuf.Empty) (response *google_protobuf.Empty, retErr error) {
a.Log(request, nil, nil, 0)
defer func(start time.Time) { a.Log(request, response, retErr, time.Since(start)) }(time.Now())
if err := a.driver.ArchiveAll(); err != nil {
return nil, err
}
return google_protobuf.EmptyInstance, nil
}
type putFileReader struct {
server pfs.API_PutFileServer
buffer bytes.Buffer
}
func (r *putFileReader) Read(p []byte) (int, error) {
if r.buffer.Len() == 0 {
request, err := r.server.Recv()
if err != nil {
return 0, err
}
//buffer.Write cannot error
r.buffer.Write(request.Value)
}
return r.buffer.Read(p)
}
func (a *apiServer) getVersion(ctx context.Context) (int64, error) {
md, ok := metadata.FromContext(ctx)
if !ok {
return 0, fmt.Errorf("version not found in context")
}
encodedVersion, ok := md["version"]
if !ok {
return 0, fmt.Errorf("version not found in context")
}
if len(encodedVersion) != 1 {
return 0, fmt.Errorf("version not found in context")
}
return strconv.ParseInt(encodedVersion[0], 10, 64)
}
func drainFileServer(putFileServer interface {
Recv() (*pfs.PutFileRequest, error)
}) {
for {
if _, err := putFileServer.Recv(); err != nil {
break
}
}
}