This repository has been archived by the owner on Feb 14, 2023. It is now read-only.
/
store.go
195 lines (165 loc) · 6.35 KB
/
store.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
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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
// Copyright 2016-2018 Stratumn SAS. All rights reserved.
//
// 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
//
// 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 monitoring
import (
"context"
"fmt"
"github.com/stratumn/go-chainscript"
"github.com/stratumn/go-core/store"
"github.com/stratumn/go-core/types"
)
// StoreAdapter is a decorator for the store.Adapter interface.
// It wraps a real store.Adapter implementation and adds instrumentation.
type StoreAdapter struct {
s store.Adapter
name string
}
// WrapStore wraps an existing store adapter to add monitoring.
func WrapStore(s store.Adapter, name string) store.Adapter {
return &StoreAdapter{s: s, name: name}
}
// GetInfo instruments the call and delegates to the underlying store.
func (a *StoreAdapter) GetInfo(ctx context.Context) (res interface{}, err error) {
tracker := newStoreRequestTracker("GetInfo")
span, ctx := StartSpanIncomingRequest(ctx, fmt.Sprintf("%s/GetInfo", a.name))
defer func() {
SetSpanStatusAndEnd(span, err)
tracker.End(err)
}()
res, err = a.s.GetInfo(ctx)
return
}
// AddStoreEventChannel instruments the call and delegates to the underlying store.
func (a *StoreAdapter) AddStoreEventChannel(c chan *store.Event) {
a.s.AddStoreEventChannel(c)
}
// NewBatch instruments the call and delegates to the underlying store.
func (a *StoreAdapter) NewBatch(ctx context.Context) (b store.Batch, err error) {
span, ctx := StartSpanIncomingRequest(ctx, fmt.Sprintf("%s/NewBatch", a.name))
defer func() {
SetSpanStatusAndEnd(span, err)
}()
b, err = a.s.NewBatch(ctx)
return
}
// AddEvidence instruments the call and delegates to the underlying store.
func (a *StoreAdapter) AddEvidence(ctx context.Context, linkHash chainscript.LinkHash, evidence *chainscript.Evidence) (err error) {
tracker := newStoreRequestTracker("AddEvidence")
span, ctx := StartSpanIncomingRequest(ctx, fmt.Sprintf("%s/AddEvidence", a.name))
defer func() {
SetSpanStatusAndEnd(span, err)
tracker.End(err)
}()
err = a.s.AddEvidence(ctx, linkHash, evidence)
return
}
// GetEvidences instruments the call and delegates to the underlying store.
func (a *StoreAdapter) GetEvidences(ctx context.Context, linkHash chainscript.LinkHash) (e types.EvidenceSlice, err error) {
tracker := newStoreRequestTracker("GetEvidences")
span, ctx := StartSpanIncomingRequest(ctx, fmt.Sprintf("%s/GetEvidences", a.name))
defer func() {
SetSpanStatusAndEnd(span, err)
tracker.End(err)
}()
e, err = a.s.GetEvidences(ctx, linkHash)
return
}
// CreateLink instruments the call and delegates to the underlying store.
func (a *StoreAdapter) CreateLink(ctx context.Context, link *chainscript.Link) (lh chainscript.LinkHash, err error) {
tracker := newStoreRequestTracker("CreateLink")
span, ctx := StartSpanIncomingRequest(ctx, fmt.Sprintf("%s/CreateLink", a.name))
defer func() {
SetSpanStatusAndEnd(span, err)
tracker.End(err)
}()
lh, err = a.s.CreateLink(ctx, link)
return
}
// GetSegment instruments the call and delegates to the underlying store.
func (a *StoreAdapter) GetSegment(ctx context.Context, linkHash chainscript.LinkHash) (s *chainscript.Segment, err error) {
tracker := newStoreRequestTracker("GetSegment")
span, ctx := StartSpanIncomingRequest(ctx, fmt.Sprintf("%s/GetSegment", a.name))
defer func() {
SetSpanStatusAndEnd(span, err)
tracker.End(err)
}()
s, err = a.s.GetSegment(ctx, linkHash)
return
}
// FindSegments instruments the call and delegates to the underlying store.
func (a *StoreAdapter) FindSegments(ctx context.Context, filter *store.SegmentFilter) (ss *types.PaginatedSegments, err error) {
tracker := newStoreRequestTracker("FindSegments")
span, ctx := StartSpanIncomingRequest(ctx, fmt.Sprintf("%s/FindSegments", a.name))
defer func() {
SetSpanStatusAndEnd(span, err)
tracker.End(err)
}()
ss, err = a.s.FindSegments(ctx, filter)
return
}
// GetMapIDs instruments the call and delegates to the underlying store.
func (a *StoreAdapter) GetMapIDs(ctx context.Context, filter *store.MapFilter) (mids []string, err error) {
tracker := newStoreRequestTracker("GetMapIDs")
span, ctx := StartSpanIncomingRequest(ctx, fmt.Sprintf("%s/GetMapIDs", a.name))
defer func() {
SetSpanStatusAndEnd(span, err)
tracker.End(err)
}()
mids, err = a.s.GetMapIDs(ctx, filter)
return
}
// KeyValueStoreAdapter is a decorator for the store.KeyValueStore interface.
// It wraps a real store.KeyValueStore implementation and adds instrumentation.
type KeyValueStoreAdapter struct {
s store.KeyValueStore
name string
}
// WrapKeyValueStore wraps an existing key value store adapter to add
// monitoring.
func WrapKeyValueStore(s store.KeyValueStore, name string) store.KeyValueStore {
return &KeyValueStoreAdapter{s: s, name: name}
}
// GetValue instruments the call and delegates to the underlying store.
func (a *KeyValueStoreAdapter) GetValue(ctx context.Context, key []byte) (v []byte, err error) {
tracker := newStoreRequestTracker("GetValue")
span, ctx := StartSpanIncomingRequest(ctx, fmt.Sprintf("%s/GetValue", a.name))
defer func() {
SetSpanStatusAndEnd(span, err)
tracker.End(err)
}()
v, err = a.s.GetValue(ctx, key)
return
}
// SetValue instruments the call and delegates to the underlying store.
func (a *KeyValueStoreAdapter) SetValue(ctx context.Context, key []byte, value []byte) (err error) {
tracker := newStoreRequestTracker("SetValue")
span, ctx := StartSpanIncomingRequest(ctx, fmt.Sprintf("%s/SetValue", a.name))
defer func() {
SetSpanStatusAndEnd(span, err)
tracker.End(err)
}()
err = a.s.SetValue(ctx, key, value)
return
}
// DeleteValue instruments the call and delegates to the underlying store.
func (a *KeyValueStoreAdapter) DeleteValue(ctx context.Context, key []byte) (v []byte, err error) {
tracker := newStoreRequestTracker("DeleteValue")
span, ctx := StartSpanIncomingRequest(ctx, fmt.Sprintf("%s/DeleteValue", a.name))
defer func() {
SetSpanStatusAndEnd(span, err)
tracker.End(err)
}()
v, err = a.s.DeleteValue(ctx, key)
return
}