-
Notifications
You must be signed in to change notification settings - Fork 32
/
statvar_summary.go
84 lines (80 loc) · 2.56 KB
/
statvar_summary.go
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
// Copyright 2022 Google LLC
//
// Licensed 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
//
// https://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 statvar
import (
"context"
pb "github.com/datacommonsorg/mixer/internal/proto"
"github.com/datacommonsorg/mixer/internal/store"
"github.com/datacommonsorg/mixer/internal/store/bigtable"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/proto"
)
// GetStatVarSummaryHelper is a wrapper to get stat var summary.
func GetStatVarSummaryHelper(
ctx context.Context, entities []string, store *store.Store) (
map[string]*pb.StatVarSummary, error) {
btDataList, err := bigtable.Read(
ctx,
store.BtGroup,
bigtable.BtStatVarSummary,
[][]string{entities},
func(jsonRaw []byte) (interface{}, error) {
var statVarSummary pb.StatVarSummary
if err := proto.Unmarshal(jsonRaw, &statVarSummary); err != nil {
return nil, err
}
return &statVarSummary, nil
},
)
if err != nil {
return nil, err
}
result := map[string]*pb.StatVarSummary{}
// Merge strategy
// 1. "place_type_summary": For a given place type, pick the Bigtable with the
// most places.
// 2. "provenance_summary": Merge provenances from all the Bigtables.
for _, btData := range btDataList {
for _, row := range btData {
dcid := row.Parts[0]
svs, ok := row.Data.(*pb.StatVarSummary)
if !ok {
return nil, status.Errorf(codes.Internal, "Can not read StatVarSummary")
}
if _, ok := result[dcid]; !ok {
result[dcid] = svs
continue
}
res := result[dcid]
// Pick place type summary with the most places.
for pt := range svs.PlaceTypeSummary {
summary, ok := res.PlaceTypeSummary[pt]
if ok && svs.PlaceTypeSummary[pt].PlaceCount < summary.PlaceCount {
continue
}
res.PlaceTypeSummary[pt] = svs.PlaceTypeSummary[pt]
}
//
for source := range svs.ProvenanceSummary {
// Only set the the source if it has not been found in a preferred
// import group.
if _, ok := res.ProvenanceSummary[source]; !ok {
res.ProvenanceSummary[source] = svs.ProvenanceSummary[source]
}
}
}
}
return result, nil
}