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
16 #include "battery_config.h"
17 #include "string_ex.h"
18 #include "battery_log.h"
19
20 namespace OHOS {
21 namespace HDI {
22 namespace Battery {
23 namespace V1_1 {
24 namespace {
25 constexpr const char* VENDOR_BATTERY_CONFIG_PATH = "/vendor/etc/battery/battery_config.json";
26 constexpr int32_t MAP_KEY_INDEX = 0;
27 constexpr int32_t BEGIN_SOC_INDEX = 0;
28 constexpr int32_t END_SOC_INDEX = 1;
29 constexpr int32_t RED_INDEX = 0;
30 constexpr int32_t GREEN_INDEX = 1;
31 constexpr int32_t BLUE_INDEX = 2;
32 constexpr int32_t MAX_DEPTH = 5;
33 constexpr int32_t MIN_DEPTH = 1;
34 constexpr uint32_t MOVE_LEFT_16 = 16;
35 constexpr uint32_t MOVE_LEFT_8 = 8;
36 }
37 std::shared_ptr<BatteryConfig> BatteryConfig::instance_ = nullptr;
38 std::mutex BatteryConfig::mutex_;
39
GetInstance()40 BatteryConfig& BatteryConfig::GetInstance()
41 {
42 std::lock_guard<std::mutex> lock(mutex_);
43 if (instance_ == nullptr) {
44 instance_ = std::make_shared<BatteryConfig>();
45 }
46 return *(instance_.get());
47 }
48
ParseConfig(std::string configPath)49 bool BatteryConfig::ParseConfig(std::string configPath)
50 {
51 Json::CharReaderBuilder readerBuilder;
52 std::ifstream ifsConf;
53
54 if (!OpenFile(ifsConf, configPath)) {
55 return false;
56 }
57
58 config_.clear();
59 readerBuilder["collectComments"] = false;
60 JSONCPP_STRING errs;
61
62 if (parseFromStream(readerBuilder, ifsConf, &config_, &errs) && !config_.empty()) {
63 ParseConfInner();
64 }
65 ifsConf.close();
66 return true;
67 }
68
IsExist(std::string key) const69 bool BatteryConfig::IsExist(std::string key) const
70 {
71 return !GetValue(key).isNull();
72 }
73
GetInt(std::string key,int32_t defVal) const74 int32_t BatteryConfig::GetInt(std::string key, int32_t defVal) const
75 {
76 Json::Value value = GetValue(key);
77 return (value.isNull() || !value.isInt()) ? defVal : value.asInt();
78 }
79
GetString(std::string key,std::string defVal) const80 std::string BatteryConfig::GetString(std::string key, std::string defVal) const
81 {
82 Json::Value value = GetValue(key);
83 return (value.isNull() || !value.isString()) ? defVal : value.asString();
84 }
85
GetLightConf() const86 const std::vector<BatteryConfig::LightConf>& BatteryConfig::GetLightConf() const
87 {
88 return lightConf_;
89 }
90
DestroyInstance()91 void BatteryConfig::DestroyInstance()
92 {
93 std::lock_guard<std::mutex> lock(mutex_);
94 instance_ = nullptr;
95 }
96
OpenFile(std::ifstream & ifsConf,const std::string & configPath)97 bool BatteryConfig::OpenFile(std::ifstream& ifsConf, const std::string& configPath)
98 {
99 bool isOpen = false;
100 if (!configPath.empty()) {
101 ifsConf.open(configPath);
102 isOpen = ifsConf.is_open();
103 BATTERY_HILOGD(COMP_HDI, "open file is %{public}d", isOpen);
104 }
105 if (isOpen) {
106 return true;
107 }
108
109 ifsConf.open(VENDOR_BATTERY_CONFIG_PATH);
110 isOpen = ifsConf.is_open();
111 BATTERY_HILOGI(COMP_HDI, "open then vendor battery_config.json is %{public}d", isOpen);
112 return isOpen;
113 }
114
ParseConfInner()115 void BatteryConfig::ParseConfInner()
116 {
117 lightConf_.clear();
118 ParseLightConf("low");
119 ParseLightConf("normal");
120 ParseLightConf("high");
121 BATTERY_HILOGD(COMP_HDI, "The battery light configuration size %{public}d",
122 static_cast<int32_t>(lightConf_.size()));
123 }
124
ParseLightConf(std::string level)125 void BatteryConfig::ParseLightConf(std::string level)
126 {
127 Json::Value soc = GetValue("light." + level + ".soc");
128 Json::Value rgb = GetValue("light." + level + ".rgb");
129 if (!soc.isArray() || !rgb.isArray()) {
130 BATTERY_HILOGW(COMP_HDI, "The battery light %{public}s configuration is invalid.", level.c_str());
131 return;
132 }
133
134 BatteryConfig::LightConf lightConf = {
135 .beginSoc = soc[BEGIN_SOC_INDEX].asInt(),
136 .endSoc = soc[END_SOC_INDEX].asInt(),
137 .rgb = (rgb[RED_INDEX].asUInt() << MOVE_LEFT_16) |
138 (rgb[GREEN_INDEX].asUInt() << MOVE_LEFT_8) |
139 rgb[BLUE_INDEX].asUInt()
140 };
141 lightConf_.push_back(lightConf);
142 }
143
FindConf(const std::string & key) const144 Json::Value BatteryConfig::FindConf(const std::string& key) const
145 {
146 return (config_.isObject() && config_.isMember(key)) ? config_[key] : Json::Value();
147 }
148
SplitKey(const std::string & key,std::vector<std::string> & keys) const149 bool BatteryConfig::SplitKey(const std::string& key, std::vector<std::string>& keys) const
150 {
151 SplitStr(TrimStr(key), ".", keys);
152 return (keys.size() < MIN_DEPTH || keys.size() > MAX_DEPTH) ? false : true;
153 }
154
GetValue(std::string key) const155 Json::Value BatteryConfig::GetValue(std::string key) const
156 {
157 std::vector<std::string> keys;
158 if (!SplitKey(key, keys)) {
159 BATTERY_HILOGW(COMP_HDI, "The key does not meet the. key=%{public}s", key.c_str());
160 return Json::Value();
161 }
162
163 Json::Value value = FindConf(keys[MAP_KEY_INDEX]);
164 if (value.isNull()) {
165 BATTERY_HILOGW(COMP_HDI, "Value is empty. key=%{public}s", keys[MAP_KEY_INDEX].c_str());
166 return value;
167 }
168
169 for (size_t i = 1; i < keys.size(); ++i) {
170 if (!value.isObject() || !value.isMember(keys[i])) {
171 BATTERY_HILOGW(COMP_HDI, "The key is not configured. key=%{public}s", keys[i].c_str());
172 break;
173 }
174 value = value[keys[i]];
175 }
176 return value;
177 }
178 } // namespace V1_1
179 } // namespace Battery
180 } // namespace HDI
181 } // namespace OHOS
182