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artifact.go
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artifact.go
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// Licensed to the Apache Software Foundation (ASF) under one or more
// contributor license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You under the Apache License, Version 2.0
// (the "License"); you may not use this file except in compliance with
// the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package jobservices
import (
"bytes"
"context"
"fmt"
"io"
jobpb "github.com/apache/beam/sdks/v2/go/pkg/beam/model/jobmanagement_v1"
"golang.org/x/exp/slog"
"google.golang.org/protobuf/encoding/prototext"
)
func (s *Server) ReverseArtifactRetrievalService(stream jobpb.ArtifactStagingService_ReverseArtifactRetrievalServiceServer) error {
in, err := stream.Recv()
if err == io.EOF {
return nil
}
if err != nil {
return err
}
job := s.jobs[in.GetStagingToken()]
envs := job.Pipeline.GetComponents().GetEnvironments()
for _, env := range envs {
for _, dep := range env.GetDependencies() {
slog.Debug("GetArtifact start",
slog.Group("dep",
slog.String("urn", dep.GetTypeUrn()),
slog.String("payload", string(dep.GetTypePayload()))))
stream.Send(&jobpb.ArtifactRequestWrapper{
Request: &jobpb.ArtifactRequestWrapper_GetArtifact{
GetArtifact: &jobpb.GetArtifactRequest{
Artifact: dep,
},
},
})
var buf bytes.Buffer
for {
in, err := stream.Recv()
if err == io.EOF {
return nil
}
if err != nil {
return err
}
if in.GetIsLast() {
slog.Debug("GetArtifact finished",
slog.Group("dep",
slog.String("urn", dep.GetTypeUrn()),
slog.String("payload", string(dep.GetTypePayload()))),
slog.Int("bytesReceived", buf.Len()),
slog.String("rtype", fmt.Sprintf("%T", in.GetResponse())),
)
break
}
// Here's where we go through each environment's artifacts.
// We do nothing with them.
switch req := in.GetResponse().(type) {
case *jobpb.ArtifactResponseWrapper_GetArtifactResponse:
buf.Write(req.GetArtifactResponse.GetData())
case *jobpb.ArtifactResponseWrapper_ResolveArtifactResponse:
err := fmt.Errorf("unexpected ResolveArtifactResponse to GetArtifact: %v", in.GetResponse())
slog.Error("GetArtifact failure", err)
return err
}
}
if len(s.artifacts) == 0 {
s.artifacts = map[string][]byte{}
}
s.artifacts[string(dep.GetTypePayload())] = buf.Bytes()
}
}
return nil
}
func (s *Server) ResolveArtifacts(_ context.Context, req *jobpb.ResolveArtifactsRequest) (*jobpb.ResolveArtifactsResponse, error) {
return &jobpb.ResolveArtifactsResponse{
Replacements: req.GetArtifacts(),
}, nil
}
func (s *Server) GetArtifact(req *jobpb.GetArtifactRequest, stream jobpb.ArtifactRetrievalService_GetArtifactServer) error {
info := req.GetArtifact()
buf, ok := s.artifacts[string(info.GetTypePayload())]
if !ok {
pt := prototext.Format(info)
slog.Warn("unable to provide artifact to worker", "artifact_info", pt)
return fmt.Errorf("unable to provide %v to worker", pt)
}
chunk := 128 * 1024 * 1024 // 128 MB
var i int
for i+chunk < len(buf) {
stream.Send(&jobpb.GetArtifactResponse{
Data: buf[i : i+chunk],
})
i += chunk
}
stream.Send(&jobpb.GetArtifactResponse{
Data: buf[i:],
})
return nil
}