1 /*
2 * Copyright (c) 2021-2023 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 #include "dcamera_event_cmd.h"
17 #include "cJSON.h"
18 #include "distributed_camera_constants.h"
19 #include "distributed_camera_errno.h"
20 #include "distributed_hardware_log.h"
21
22 namespace OHOS {
23 namespace DistributedHardware {
Marshal(std::string& jsonStr)24 int32_t DCameraEventCmd::Marshal(std::string& jsonStr)
25 {
26 if (value_ == nullptr) {
27 return DCAMERA_BAD_VALUE;
28 }
29 cJSON *rootValue = cJSON_CreateObject();
30 if (rootValue == nullptr) {
31 return DCAMERA_BAD_VALUE;
32 }
33 cJSON_AddStringToObject(rootValue, "Type", type_.c_str());
34 cJSON_AddStringToObject(rootValue, "dhId", dhId_.c_str());
35 cJSON_AddStringToObject(rootValue, "Command", command_.c_str());
36
37 cJSON *event = cJSON_CreateObject();
38 if (event == nullptr) {
39 cJSON_Delete(rootValue);
40 return DCAMERA_BAD_VALUE;
41 }
42 cJSON_AddNumberToObject(event, "EventType", value_->eventType_);
43 cJSON_AddNumberToObject(event, "EventResult", value_->eventResult_);
44 cJSON_AddStringToObject(event, "EventContent", value_->eventContent_.c_str());
45 cJSON_AddItemToObject(rootValue, "Value", event);
46
47 char *data = cJSON_Print(rootValue);
48 if (data == nullptr) {
49 cJSON_Delete(rootValue);
50 return DCAMERA_BAD_VALUE;
51 }
52 jsonStr = std::string(data);
53 cJSON_Delete(rootValue);
54 cJSON_free(data);
55 return DCAMERA_OK;
56 }
57
Unmarshal(const std::string& jsonStr)58 int32_t DCameraEventCmd::Unmarshal(const std::string& jsonStr)
59 {
60 cJSON *rootValue = cJSON_Parse(jsonStr.c_str());
61 if (rootValue == nullptr) {
62 return DCAMERA_BAD_VALUE;
63 }
64 cJSON *type = cJSON_GetObjectItemCaseSensitive(rootValue, "Type");
65 cJSON *dhId = cJSON_GetObjectItemCaseSensitive(rootValue, "dhId");
66 if (type == nullptr || !cJSON_IsString(type) || (type->valuestring == nullptr) ||
67 dhId == nullptr || !cJSON_IsString(dhId) || (dhId->valuestring == nullptr)) {
68 cJSON_Delete(rootValue);
69 return DCAMERA_BAD_VALUE;
70 }
71 type_ = type->valuestring;
72 dhId_ = dhId->valuestring;
73 cJSON *command = cJSON_GetObjectItemCaseSensitive(rootValue, "Command");
74 if (command == nullptr || !cJSON_IsString(command) || (command->valuestring == nullptr)) {
75 cJSON_Delete(rootValue);
76 return DCAMERA_BAD_VALUE;
77 }
78 command_ = command->valuestring;
79 cJSON *valueJson = cJSON_GetObjectItemCaseSensitive(rootValue, "Value");
80 if (valueJson == nullptr || !cJSON_IsObject(valueJson)) {
81 cJSON_Delete(rootValue);
82 return DCAMERA_BAD_VALUE;
83 }
84 cJSON *eventType = cJSON_GetObjectItemCaseSensitive(valueJson, "EventType");
85 if (eventType == nullptr || !cJSON_IsNumber(eventType)) {
86 cJSON_Delete(rootValue);
87 return DCAMERA_BAD_VALUE;
88 }
89 std::shared_ptr<DCameraEvent> event = std::make_shared<DCameraEvent>();
90 event->eventType_ = eventType->valueint;
91 cJSON *eventResult = cJSON_GetObjectItemCaseSensitive(valueJson, "EventResult");
92 if (eventResult == nullptr || !cJSON_IsNumber(eventResult)) {
93 cJSON_Delete(rootValue);
94 return DCAMERA_BAD_VALUE;
95 }
96 event->eventResult_ = eventResult->valueint;
97 cJSON *eventContent = cJSON_GetObjectItemCaseSensitive(valueJson, "EventContent");
98 if (eventContent == nullptr || !cJSON_IsString(eventContent) || (eventContent->valuestring == nullptr)) {
99 cJSON_Delete(rootValue);
100 return DCAMERA_BAD_VALUE;
101 }
102 event->eventContent_ = eventContent->valuestring;
103 value_ = event;
104 cJSON_Delete(rootValue);
105 return DCAMERA_OK;
106 }
107 } // namespace DistributedHardware
108 } // namespace OHOS
109