1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #define LOG_TAG "RdbWatcher"
17
18 #include "rdb_watcher.h"
19
20 #include "error/general_error.h"
21 #include "log_print.h"
22 #include "utils/anonymous.h"
23
24 namespace OHOS::DistributedRdb {
25 using namespace DistributedData;
26 using Error = DistributedData::GeneralError;
RdbWatcher()27 RdbWatcher::RdbWatcher() {}
28
OnChange(const Origin &origin, const PRIFields &primaryFields, ChangeInfo &&values)29 int32_t RdbWatcher::OnChange(const Origin &origin, const PRIFields &primaryFields, ChangeInfo &&values)
30 {
31 auto notifier = GetNotifier();
32 if (notifier == nullptr) {
33 return E_NOT_INIT;
34 }
35 DistributedRdb::Origin rdbOrigin;
36 rdbOrigin.origin = origin.origin;
37 rdbOrigin.dataType = origin.dataType;
38 rdbOrigin.id = origin.id;
39 rdbOrigin.store = origin.store;
40 ZLOGD("store:%{public}s data change from :%{public}s, dataType:%{public}d, origin:%{public}d.",
41 Anonymous::Change(rdbOrigin.store).c_str(),
42 rdbOrigin.id.empty() ? "empty" : Anonymous::Change(*rdbOrigin.id.begin()).c_str(),
43 rdbOrigin.dataType, rdbOrigin.origin);
44 notifier->OnChange(rdbOrigin, primaryFields, std::move(values));
45 return E_OK;
46 }
47
OnChange(const Origin &origin, const Fields &fields, ChangeData &&datas)48 int32_t RdbWatcher::OnChange(const Origin &origin, const Fields &fields, ChangeData &&datas)
49 {
50 return E_OK;
51 }
52
GetNotifier() const53 sptr<RdbNotifierProxy> RdbWatcher::GetNotifier() const
54 {
55 std::shared_lock<decltype(mutex_)> lock(mutex_);
56 return notifier_;
57 }
58
SetNotifier(sptr<RdbNotifierProxy> notifier)59 void RdbWatcher::SetNotifier(sptr<RdbNotifierProxy> notifier)
60 {
61 std::unique_lock<decltype(mutex_)> lock(mutex_);
62 if (notifier_ == notifier) {
63 return;
64 }
65 notifier_ = notifier;
66 }
67 } // namespace OHOS::DistributedRdb
68