-
Notifications
You must be signed in to change notification settings - Fork 177
/
folder-size-cache.go
232 lines (186 loc) · 5.63 KB
/
folder-size-cache.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
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
/*
* Copyright (c) 2019-2021. Abstrium SAS <team (at) pydio.com>
* This file is part of Pydio Cells.
*
* Pydio Cells is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pydio Cells is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Pydio Cells. If not, see <http://www.gnu.org/licenses/>.
*
* The latest code can be found at <https://pydio.com>.
*/
package index
import (
"context"
"fmt"
"sync"
"github.com/pydio/cells/v4/common/proto/tree"
"github.com/pydio/cells/v4/common/sql"
"github.com/pydio/cells/v4/common/utils/mtree"
)
var (
folderSizeCache = make(map[string]int64)
folderSizeLock = &sync.RWMutex{}
)
// FolderSizeCacheSQL implementation
type FolderSizeCacheSQL struct {
DAO
}
func init() {
queries["childrenSize"] = func(dao sql.DAO, mpathes ...string) (string, []interface{}) {
sub, args := getMPathLike([]byte(mpathes[0]))
return fmt.Sprintf(`
select sum(size)
FROM %%PREFIX%%_idx_tree
WHERE %s AND level >= ? AND leaf=1`, sub), args
}
}
// NewFolderSizeCacheDAO provides a middleware implementation of the index sql dao that removes duplicate entries of the .pydio file that have the same etag at the same level
func NewFolderSizeCacheDAO(dao DAO) DAO {
//return dao
return &FolderSizeCacheSQL{
dao,
}
}
// GetNode from path
func (dao *FolderSizeCacheSQL) GetNode(path mtree.MPath) (*mtree.TreeNode, error) {
node, err := dao.DAO.GetNode(path)
if err != nil {
return nil, err
}
if node != nil && !node.IsLeaf() {
dao.folderSize(node)
}
return node, nil
}
// GetNodeByUUID returns the node stored with the unique uuid
func (dao *FolderSizeCacheSQL) GetNodeByUUID(uuid string) (*mtree.TreeNode, error) {
node, err := dao.DAO.GetNodeByUUID(uuid)
if err != nil {
return nil, err
}
if node != nil && !node.IsLeaf() {
dao.folderSize(node)
}
return node, nil
}
// GetNodeChildren List
func (dao *FolderSizeCacheSQL) GetNodeChildren(ctx context.Context, path mtree.MPath, filter ...*tree.MetaFilter) chan interface{} {
c := make(chan interface{})
go func() {
defer close(c)
cc := dao.DAO.GetNodeChildren(ctx, path, filter...)
for obj := range cc {
if node, ok := obj.(*mtree.TreeNode); ok {
if node != nil && !node.IsLeaf() {
dao.folderSize(node)
}
}
select {
case c <- obj:
case <-ctx.Done():
return
}
}
}()
return c
}
// GetNodeTree List from the path
func (dao *FolderSizeCacheSQL) GetNodeTree(ctx context.Context, path mtree.MPath, filter ...*tree.MetaFilter) chan interface{} {
c := make(chan interface{})
go func() {
defer close(c)
cc := dao.DAO.GetNodeTree(ctx, path, filter...)
for obj := range cc {
if node, ok := obj.(*mtree.TreeNode); ok {
if node != nil && !node.IsLeaf() {
dao.folderSize(node)
}
}
select {
case c <- obj:
case <-ctx.Done():
return
}
}
}()
return c
}
func (dao *FolderSizeCacheSQL) Path(strpath string, create bool, reqNode ...tree.N) (mtree.MPath, []*mtree.TreeNode, error) {
mpath, nodes, err := dao.DAO.Path(strpath, create, reqNode...)
if create {
go dao.invalidateMPathHierarchy(mpath, -1)
}
return mpath, nodes, err
}
// AddNode adds a node in the tree.
func (dao *FolderSizeCacheSQL) AddNode(node *mtree.TreeNode) error {
dao.invalidateMPathHierarchy(node.MPath, -1)
return dao.DAO.AddNode(node)
}
// SetNode updates a node, including its tree position
func (dao *FolderSizeCacheSQL) SetNode(node *mtree.TreeNode) error {
dao.invalidateMPathHierarchy(node.MPath, -1)
return dao.DAO.SetNode(node)
}
// DelNode removes a node from the tree
func (dao *FolderSizeCacheSQL) DelNode(node *mtree.TreeNode) error {
dao.invalidateMPathHierarchy(node.MPath, -1)
return dao.DAO.DelNode(node)
}
// MoveNodeTree move all the nodes belonging to a tree by calculating the new mpathes
func (dao *FolderSizeCacheSQL) MoveNodeTree(nodeFrom *mtree.TreeNode, nodeTo *mtree.TreeNode) error {
root := nodeTo.MPath.CommonRoot(nodeFrom.MPath)
dao.invalidateMPathHierarchy(nodeTo.MPath, len(root))
dao.invalidateMPathHierarchy(nodeFrom.MPath, len(root))
return dao.DAO.MoveNodeTree(nodeFrom, nodeTo)
}
func (dao *FolderSizeCacheSQL) GetSQLDAO() sql.DAO {
return dao.DAO.GetSQLDAO()
}
func (dao *FolderSizeCacheSQL) invalidateMPathHierarchy(mpath mtree.MPath, level int) {
parents := mpath.Parents()
if level > -1 {
parents = mpath.Parents()[level:]
}
folderSizeLock.Lock()
delete(folderSizeCache, mpath.String())
folderSizeLock.Unlock()
for _, p := range parents {
folderSizeLock.Lock()
delete(folderSizeCache, p.String())
folderSizeLock.Unlock()
}
}
// Compute sizes from children files - Does not handle lock, should be
// used by other functions handling lock
func (dao *FolderSizeCacheSQL) folderSize(node *mtree.TreeNode) {
mpath := node.MPath.String()
folderSizeLock.RLock()
size, ok := folderSizeCache[mpath]
folderSizeLock.RUnlock()
if ok {
node.UpdateSize(size)
return
}
if stmt, args, e := dao.GetSQLDAO().GetStmtWithArgs("childrenSize", mpath); e == nil {
row := stmt.QueryRow(append(args, len(node.MPath)+1)...)
if row != nil {
var size int64
if er := row.Scan(&size); er == nil {
node.UpdateSize(size)
folderSizeLock.Lock()
folderSizeCache[mpath] = size
folderSizeLock.Unlock()
}
}
}
}