1 /*
2 * Copyright (C) 2022 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 #include "payload_data/get_device_prop_desc_data.h"
16 #include "media_log.h"
17 #include "media_mtp_utils.h"
18 #include "mtp_operation_utils.h"
19 #include "mtp_packet_tools.h"
20 using namespace std;
21 namespace OHOS {
22 namespace Media {
GetDevicePropDescData(std::shared_ptr<MtpOperationContext> & context)23 GetDevicePropDescData::GetDevicePropDescData(std::shared_ptr<MtpOperationContext> &context)
24     :PayloadData(context)
25 {
26 }
27 
GetDevicePropDescData()28 GetDevicePropDescData::GetDevicePropDescData()
29 {
30 }
31 
~GetDevicePropDescData()32 GetDevicePropDescData::~GetDevicePropDescData()
33 {
34 }
35 
Parser(const std::vector<uint8_t> & buffer,int32_t readSize)36 int GetDevicePropDescData::Parser(const std::vector<uint8_t> &buffer, int32_t readSize)
37 {
38     if (context_ == nullptr) {
39         return MTP_ERROR_CONTEXT_IS_NULL;
40     }
41 
42     size_t offset = MTP_CONTAINER_HEADER_SIZE;
43     context_->property = MtpPacketTool::GetUInt32(buffer, offset);
44     return MTP_SUCCESS;
45 }
46 
Maker(std::vector<uint8_t> & outBuffer)47 int GetDevicePropDescData::Maker(std::vector<uint8_t> &outBuffer)
48 {
49     if (result_ == nullptr) {
50         MEDIA_ERR_LOG("property id NULL");
51         return MTP_ERROR_DEVICEPROP_NOT_SUPPORTED;
52     }
53     result_->Write(outBuffer);
54 
55     return MTP_SUCCESS;
56 }
57 
CalculateSize()58 uint32_t GetDevicePropDescData::CalculateSize()
59 {
60     std::vector<uint8_t> tmpVar;
61 
62     int res = Maker(tmpVar);
63     if (res != MTP_SUCCESS) {
64         return res;
65     }
66 
67     uint32_t size = tmpVar.size();
68     return size;
69 }
70 
SetProperty(std::shared_ptr<Property> & property)71 void GetDevicePropDescData::SetProperty(std::shared_ptr<Property> &property)
72 {
73     result_ = property;
74 }
75 } // namespace Media
76 } // namespace OHOS