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
196
197
198
199
200
201
202
|
package filer2
import (
"context"
"strings"
"time"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/stats"
"github.com/chrislusf/seaweedfs/weed/util"
)
type FilerStore interface {
// GetName gets the name to locate the configuration in filer.toml file
GetName() string
// Initialize initializes the file store
Initialize(configuration util.Configuration, prefix string) error
InsertEntry(context.Context, *Entry) error
UpdateEntry(context.Context, *Entry) (err error)
// err == filer2.ErrNotFound if not found
FindEntry(context.Context, util.FullPath) (entry *Entry, err error)
DeleteEntry(context.Context, util.FullPath) (err error)
DeleteFolderChildren(context.Context, util.FullPath) (err error)
ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int) ([]*Entry, error)
ListDirectoryPrefixedEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int, prefix string) ([]*Entry, error)
BeginTransaction(ctx context.Context) (context.Context, error)
CommitTransaction(ctx context.Context) error
RollbackTransaction(ctx context.Context) error
Shutdown()
}
type FilerLocalStore interface {
UpdateOffset(filer string, lastTsNs int64) error
ReadOffset(filer string) (lastTsNs int64, err error)
}
type FilerStoreWrapper struct {
ActualStore FilerStore
}
func NewFilerStoreWrapper(store FilerStore) *FilerStoreWrapper {
if innerStore, ok := store.(*FilerStoreWrapper); ok {
return innerStore
}
return &FilerStoreWrapper{
ActualStore: store,
}
}
func (fsw *FilerStoreWrapper) GetName() string {
return fsw.ActualStore.GetName()
}
func (fsw *FilerStoreWrapper) Initialize(configuration util.Configuration, prefix string) error {
return fsw.ActualStore.Initialize(configuration, prefix)
}
func (fsw *FilerStoreWrapper) InsertEntry(ctx context.Context, entry *Entry) error {
stats.FilerStoreCounter.WithLabelValues(fsw.ActualStore.GetName(), "insert").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(fsw.ActualStore.GetName(), "insert").Observe(time.Since(start).Seconds())
}()
filer_pb.BeforeEntrySerialization(entry.Chunks)
if entry.Mime == "application/octet-stream" {
entry.Mime = ""
}
return fsw.ActualStore.InsertEntry(ctx, entry)
}
func (fsw *FilerStoreWrapper) UpdateEntry(ctx context.Context, entry *Entry) error {
stats.FilerStoreCounter.WithLabelValues(fsw.ActualStore.GetName(), "update").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(fsw.ActualStore.GetName(), "update").Observe(time.Since(start).Seconds())
}()
filer_pb.BeforeEntrySerialization(entry.Chunks)
if entry.Mime == "application/octet-stream" {
entry.Mime = ""
}
return fsw.ActualStore.UpdateEntry(ctx, entry)
}
func (fsw *FilerStoreWrapper) FindEntry(ctx context.Context, fp util.FullPath) (entry *Entry, err error) {
stats.FilerStoreCounter.WithLabelValues(fsw.ActualStore.GetName(), "find").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(fsw.ActualStore.GetName(), "find").Observe(time.Since(start).Seconds())
}()
entry, err = fsw.ActualStore.FindEntry(ctx, fp)
if err != nil {
return nil, err
}
filer_pb.AfterEntryDeserialization(entry.Chunks)
return
}
func (fsw *FilerStoreWrapper) DeleteEntry(ctx context.Context, fp util.FullPath) (err error) {
stats.FilerStoreCounter.WithLabelValues(fsw.ActualStore.GetName(), "delete").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(fsw.ActualStore.GetName(), "delete").Observe(time.Since(start).Seconds())
}()
return fsw.ActualStore.DeleteEntry(ctx, fp)
}
func (fsw *FilerStoreWrapper) DeleteFolderChildren(ctx context.Context, fp util.FullPath) (err error) {
stats.FilerStoreCounter.WithLabelValues(fsw.ActualStore.GetName(), "deleteFolderChildren").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(fsw.ActualStore.GetName(), "deleteFolderChildren").Observe(time.Since(start).Seconds())
}()
return fsw.ActualStore.DeleteFolderChildren(ctx, fp)
}
func (fsw *FilerStoreWrapper) ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int) ([]*Entry, error) {
stats.FilerStoreCounter.WithLabelValues(fsw.ActualStore.GetName(), "list").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(fsw.ActualStore.GetName(), "list").Observe(time.Since(start).Seconds())
}()
entries, err := fsw.ActualStore.ListDirectoryEntries(ctx, dirPath, startFileName, includeStartFile, limit)
if err != nil {
return nil, err
}
for _, entry := range entries {
filer_pb.AfterEntryDeserialization(entry.Chunks)
}
return entries, err
}
func (fsw *FilerStoreWrapper) ListDirectoryPrefixedEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int, prefix string) ([]*Entry, error) {
stats.FilerStoreCounter.WithLabelValues(fsw.ActualStore.GetName(), "list").Inc()
start := time.Now()
defer func() {
stats.FilerStoreHistogram.WithLabelValues(fsw.ActualStore.GetName(), "list").Observe(time.Since(start).Seconds())
}()
entries, err := fsw.ActualStore.ListDirectoryPrefixedEntries(ctx, dirPath, startFileName, includeStartFile, limit, prefix)
if err == ErrUnsupportedListDirectoryPrefixed {
count := 0
notPrefixed, err := fsw.ActualStore.ListDirectoryEntries(ctx, dirPath, startFileName, includeStartFile, limit)
if err != nil {
return nil, err
}
if prefix == "" {
entries = notPrefixed
} else {
var lastFileName string
for count < limit {
for _, entry := range notPrefixed {
lastFileName = entry.Name()
if strings.HasPrefix(entry.Name(), prefix) {
count++
entries = append(entries, entry)
}
if count >= limit {
goto Exit
}
}
notPrefixed, err = fsw.ActualStore.ListDirectoryEntries(ctx, dirPath, lastFileName, false, limit)
if err != nil {
return nil, err
}
if len(notPrefixed) == 0 {
break
}
}
Exit:
}
} else if err != nil {
return nil, err
}
for _, entry := range entries {
filer_pb.AfterEntryDeserialization(entry.Chunks)
}
return entries, nil
}
func (fsw *FilerStoreWrapper) BeginTransaction(ctx context.Context) (context.Context, error) {
return fsw.ActualStore.BeginTransaction(ctx)
}
func (fsw *FilerStoreWrapper) CommitTransaction(ctx context.Context) error {
return fsw.ActualStore.CommitTransaction(ctx)
}
func (fsw *FilerStoreWrapper) RollbackTransaction(ctx context.Context) error {
return fsw.ActualStore.RollbackTransaction(ctx)
}
func (fsw *FilerStoreWrapper) Shutdown() {
fsw.ActualStore.Shutdown()
}
|
