1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
package server2
import (
"context"
"errors"
"fmt"
"log/slog"
"strings"
spb "ibd-trader/api/gen/idb/stock/v1"
"ibd-trader/internal/leader/manager/ibd/scrape"
"ibd-trader/internal/redis/taskqueue"
"ibd-trader/internal/server2/idb/stock/v1"
"cloud.google.com/go/longrunning/autogen/longrunningpb"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/types/known/anypb"
"google.golang.org/protobuf/types/known/timestamppb"
)
type operationServer struct {
longrunningpb.UnimplementedOperationsServer
scrape taskqueue.TaskQueue[scrape.TaskInfo]
}
func newOperationServer(scrapeQueue taskqueue.TaskQueue[scrape.TaskInfo]) *operationServer {
return &operationServer{scrape: scrapeQueue}
}
func (o *operationServer) ListOperations(
ctx context.Context,
req *longrunningpb.ListOperationsRequest,
) (*longrunningpb.ListOperationsResponse, error) {
var end taskqueue.TaskID
if req.PageToken != "" {
var err error
end, err = taskqueue.ParseTaskID(req.PageToken)
if err != nil {
return nil, status.New(codes.InvalidArgument, err.Error()).Err()
}
} else {
end = taskqueue.TaskID{}
}
switch req.Name {
case stock.ScrapeOperationPrefix:
tasks, err := o.scrape.List(ctx, taskqueue.TaskID{}, end, int64(req.PageSize))
if err != nil {
return nil, status.New(codes.Internal, "unable to list IDs").Err()
}
ops := make([]*longrunningpb.Operation, len(tasks))
for i, task := range tasks {
ops[i] = &longrunningpb.Operation{
Name: fmt.Sprintf("%s/%s", stock.ScrapeOperationPrefix, task.ID.String()),
Metadata: new(anypb.Any),
Done: task.Done,
Result: nil,
}
err = ops[i].Metadata.MarshalFrom(&spb.StockScrapeOperationMetadata{
Symbol: task.Data.Symbol,
StartTime: timestamppb.New(task.ID.Timestamp()),
})
if err != nil {
return nil, status.New(codes.Internal, "unable to marshal metadata").Err()
}
if task.Done && task.Error != "" {
s := status.New(codes.Unknown, task.Error)
ops[i].Result = &longrunningpb.Operation_Error{Error: s.Proto()}
}
}
var nextPageToken string
if len(tasks) == int(req.PageSize) {
nextPageToken = tasks[len(tasks)-1].ID.String()
} else {
nextPageToken = ""
}
return &longrunningpb.ListOperationsResponse{
Operations: ops,
NextPageToken: nextPageToken,
}, nil
default:
return nil, status.New(codes.NotFound, "unknown operation type").Err()
}
}
func (o *operationServer) GetOperation(ctx context.Context, req *longrunningpb.GetOperationRequest) (*longrunningpb.Operation, error) {
prefix, id, ok := strings.Cut(req.Name, "/")
if !ok || prefix == "" || id == "" {
return nil, status.New(codes.InvalidArgument, "invalid operation name").Err()
}
taskID, err := taskqueue.ParseTaskID(id)
if err != nil {
return nil, status.New(codes.InvalidArgument, err.Error()).Err()
}
switch prefix {
case stock.ScrapeOperationPrefix:
task, err := o.scrape.Data(ctx, taskID)
if errors.Is(err, taskqueue.ErrTaskNotFound) {
return nil, status.New(codes.NotFound, "operation not found").Err()
}
if err != nil {
slog.ErrorContext(ctx, "unable to get operation", "error", err)
return nil, status.New(codes.Internal, "unable to get operation").Err()
}
op := &longrunningpb.Operation{
Name: req.Name,
Metadata: new(anypb.Any),
Done: task.Done,
Result: nil,
}
err = op.Metadata.MarshalFrom(&spb.StockScrapeOperationMetadata{
Symbol: task.Data.Symbol,
StartTime: timestamppb.New(task.ID.Timestamp()),
})
if err != nil {
return nil, status.New(codes.Internal, "unable to marshal metadata").Err()
}
return op, nil
default:
return nil, status.New(codes.NotFound, "unknown operation type").Err()
}
}
|
