1 /*
2 * Copyright (C) 2024 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 #include "ptp_album_handles.h"
17
18 #include "datashare_predicates.h"
19 #include "datashare_abs_result_set.h"
20 #include "media_column.h"
21 #include "media_log.h"
22 #include "medialibrary_errno.h"
23 #include "result_set_utils.h"
24
25 namespace OHOS {
26 namespace Media {
27 using namespace std;
28 std::shared_ptr<PtpAlbumHandles> PtpAlbumHandles::instance_ = nullptr;
29 std::mutex PtpAlbumHandles::mutex_;
30
GetInstance()31 std::shared_ptr<PtpAlbumHandles> PtpAlbumHandles::GetInstance()
32 {
33 if (instance_ == nullptr) {
34 std::lock_guard<std::mutex> lock(mutex_);
35 if (instance_ == nullptr) {
36 instance_ = std::make_shared<PtpAlbumHandles>();
37 }
38 }
39 return instance_;
40 }
41
~PtpAlbumHandles()42 PtpAlbumHandles::~PtpAlbumHandles()
43 {
44 std::lock_guard<std::mutex> lock(mutex_);
45 dataHandles_.clear();
46 }
47
AddHandle(int32_t value)48 void PtpAlbumHandles::AddHandle(int32_t value)
49 {
50 std::lock_guard<std::mutex> lock(mutex_);
51 auto iter = std::find(dataHandles_.begin(), dataHandles_.end(), value);
52 if (iter == dataHandles_.end()) {
53 dataHandles_.push_back(value);
54 }
55 }
56
RemoveHandle(int32_t value)57 void PtpAlbumHandles::RemoveHandle(int32_t value)
58 {
59 std::lock_guard<std::mutex> lock(mutex_);
60 auto iter = std::find(dataHandles_.begin(), dataHandles_.end(), value);
61 if (iter != dataHandles_.end()) {
62 dataHandles_.erase(iter);
63 }
64 }
65
AddAlbumHandles(const std::shared_ptr<DataShare::DataShareResultSet> & resultSet)66 void PtpAlbumHandles::AddAlbumHandles(const std::shared_ptr<DataShare::DataShareResultSet> &resultSet)
67 {
68 CHECK_AND_RETURN_LOG(resultSet != nullptr, "resultSet is nullptr");
69 std::lock_guard<std::mutex> lock(mutex_);
70 dataHandles_.clear();
71 while (resultSet->GoToNextRow() == NativeRdb::E_OK) {
72 int32_t id = GetInt32Val(MediaColumn::MEDIA_ID, resultSet);
73 dataHandles_.push_back(id);
74 }
75 resultSet->GoToFirstRow();
76 }
77
FindHandle(int32_t value)78 bool PtpAlbumHandles::FindHandle(int32_t value)
79 {
80 std::lock_guard<std::mutex> lock(mutex_);
81 auto iter = std::find(dataHandles_.begin(), dataHandles_.end(), value);
82 return iter != dataHandles_.end();
83 }
84
ChangeHandle(const std::shared_ptr<DataShare::DataShareResultSet> & resultSet)85 int32_t PtpAlbumHandles::ChangeHandle(const std::shared_ptr<DataShare::DataShareResultSet> &resultSet)
86 {
87 CHECK_AND_RETURN_RET_LOG(resultSet != nullptr, E_ERR, "resultSet is nullptr");
88 std::vector<int32_t> data;
89 do {
90 int32_t id = GetInt32Val(MediaColumn::MEDIA_ID, resultSet);
91 data.push_back(id);
92 } while (!resultSet->GoToNextRow());
93
94 std::lock_guard<std::mutex> lock(mutex_);
95 for (auto value : dataHandles_) {
96 auto iter = std::find(data.begin(), data.end(), value);
97 CHECK_AND_RETURN_RET(iter != data.end(), value);
98 }
99 MEDIA_ERR_LOG("no data handle to remove");
100 return E_ERR;
101 }
102 } // namespace Media
103 } // namespace OHOS
104