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
|
// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/tab/tab_state_storage_database.h"
#include "base/check.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "sql/database.h"
#include "sql/meta_table.h"
#include "sql/statement.h"
#include "sql/transaction.h"
namespace tabs {
namespace {
const int kCurrentVersionNumber = 1;
const int kCompatibleVersionNumber = 1;
constexpr char kTabsTableName[] = "nodes";
bool CreateTable(sql::Database* db, base::cstring_view table_creation_script) {
DCHECK(db->IsSQLValid(table_creation_script));
return db->Execute(table_creation_script);
}
bool CreateSchema(sql::Database* db, sql::MetaTable* meta_table) {
DCHECK(db->HasActiveTransactions());
static constexpr char kCreateTabSchemaSql[] =
"CREATE TABLE IF NOT EXISTS nodes("
"id INTEGER PRIMARY KEY NOT NULL,"
"type INTEGER NOT NULL,"
"children BLOB,"
"payload BLOB)";
return CreateTable(db, kCreateTabSchemaSql);
}
bool InitSchema(sql::Database* db, sql::MetaTable* meta_table) {
bool has_metatable = meta_table->DoesTableExist(db);
bool has_schema = db->DoesTableExist(kTabsTableName);
if (!has_metatable && has_schema) {
db->Raze();
}
sql::Transaction transaction(db);
if (!transaction.Begin()) {
DLOG(ERROR) << "Transaction could not be started.";
return false;
}
if (!meta_table->Init(db, kCurrentVersionNumber, kCompatibleVersionNumber)) {
return false;
}
if (meta_table->GetCompatibleVersionNumber() > kCurrentVersionNumber) {
return false;
}
if (!has_schema && !CreateSchema(db, meta_table)) {
return false;
}
return meta_table->SetVersionNumber(kCurrentVersionNumber) &&
meta_table->SetCompatibleVersionNumber(kCompatibleVersionNumber) &&
transaction.Commit();
}
} // namespace
TabStateStorageDatabase::TabStateStorageDatabase(
const base::FilePath& profile_path)
: profile_path_(profile_path),
db_(std::make_unique<sql::Database>(
sql::Database::Tag("TabStateStorage"))),
meta_table_(std::make_unique<sql::MetaTable>()) {}
TabStateStorageDatabase::~TabStateStorageDatabase() = default;
bool TabStateStorageDatabase::Initialize() {
CHECK(db_);
CHECK(meta_table_);
base::FilePath db_dir = profile_path_.Append(FILE_PATH_LITERAL("Tabs"));
if (!base::CreateDirectory(db_dir)) {
LOG(ERROR) << "Failed to create directory for tab state storage database: "
<< db_dir;
return false;
}
const base::FilePath db_path = db_dir.Append(FILE_PATH_LITERAL("TabDB"));
if (!db_->Open(db_path)) {
LOG(ERROR) << "Failed to open tab state storage database: "
<< db_->GetErrorMessage();
return false;
}
if (!InitSchema(db_.get(), meta_table_.get())) {
DLOG(ERROR) << "Failed to create schema for tab state storage database: "
<< db_->GetErrorMessage();
db_->Close();
return false;
}
return true;
}
bool TabStateStorageDatabase::SaveNode(int id,
int type,
std::string payload,
std::string children) {
CHECK(db_);
sql::Transaction transaction(db_.get());
if (!transaction.Begin()) {
return false;
}
static constexpr char kInsertTabSql[] =
"INSERT OR REPLACE INTO nodes"
"(id, type, payload, children)"
"VALUES (?,?,?,?)";
DCHECK(db_->IsSQLValid(kInsertTabSql));
sql::Statement write_statement(
db_->GetCachedStatement(SQL_FROM_HERE, kInsertTabSql));
write_statement.BindInt(0, id);
write_statement.BindInt(1, type);
write_statement.BindBlob(2, std::move(payload));
write_statement.BindBlob(3, std::move(children));
if (!write_statement.Run()) {
DLOG(ERROR) << "Could not write to tabs table.";
return false;
}
return transaction.Commit();
}
std::vector<NodeState> TabStateStorageDatabase::LoadAllNodes() {
std::vector<NodeState> entries;
static constexpr char kSelectAllTabsSql[] =
"SELECT id, type, payload, children FROM nodes";
sql::Statement select_statement(
db_->GetCachedStatement(SQL_FROM_HERE, kSelectAllTabsSql));
while (select_statement.Step()) {
NodeState entry;
entry.id = select_statement.ColumnInt(0);
entry.type = select_statement.ColumnInt(1);
select_statement.ColumnBlobAsString(2, &entry.payload);
select_statement.ColumnBlobAsString(3, &entry.children);
entries.emplace_back(std::move(entry));
}
return entries;
}
} // namespace tabs
|
