Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 1 | /** |
| 2 | * Copyright © 2020 IBM Corporation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | #pragma once |
| 17 | |
| 18 | #include "action.hpp" |
Bob King | 3a78754 | 2020-04-14 13:45:01 +0800 | [diff] [blame] | 19 | #include "and_action.hpp" |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 20 | #include "chassis.hpp" |
Bob King | b267b7e | 2020-04-22 14:42:39 +0800 | [diff] [blame] | 21 | #include "compare_presence_action.hpp" |
Bob King | 9c36c5f | 2020-04-06 11:34:09 +0800 | [diff] [blame] | 22 | #include "configuration.hpp" |
Bob King | 0e70113 | 2020-04-03 21:50:31 +0800 | [diff] [blame] | 23 | #include "device.hpp" |
Bob King | f09bfe0 | 2020-04-13 17:21:15 +0800 | [diff] [blame] | 24 | #include "i2c_compare_bit_action.hpp" |
| 25 | #include "i2c_compare_byte_action.hpp" |
| 26 | #include "i2c_compare_bytes_action.hpp" |
Bob King | 9c36c5f | 2020-04-06 11:34:09 +0800 | [diff] [blame] | 27 | #include "i2c_interface.hpp" |
Bob King | f617f89 | 2020-03-30 19:03:35 +0800 | [diff] [blame] | 28 | #include "i2c_write_bit_action.hpp" |
Bob King | 87ff9d7 | 2020-03-31 14:02:55 +0800 | [diff] [blame] | 29 | #include "i2c_write_byte_action.hpp" |
Bob King | bafcb86 | 2020-03-31 16:39:00 +0800 | [diff] [blame] | 30 | #include "i2c_write_bytes_action.hpp" |
Bob King | 93a89d7 | 2020-04-15 15:11:11 +0800 | [diff] [blame] | 31 | #include "if_action.hpp" |
Bob King | f1b58dc | 2020-04-14 14:53:10 +0800 | [diff] [blame] | 32 | #include "not_action.hpp" |
Bob King | 0b51a9b | 2020-04-15 13:24:18 +0800 | [diff] [blame] | 33 | #include "or_action.hpp" |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 34 | #include "pmbus_write_vout_command_action.hpp" |
Bob King | 9c36c5f | 2020-04-06 11:34:09 +0800 | [diff] [blame] | 35 | #include "presence_detection.hpp" |
| 36 | #include "rail.hpp" |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 37 | #include "rule.hpp" |
Bob King | 315b0b6 | 2020-04-03 21:47:58 +0800 | [diff] [blame] | 38 | #include "run_rule_action.hpp" |
Bob King | a2f2a0d | 2020-04-09 13:32:14 +0800 | [diff] [blame] | 39 | #include "sensor_monitoring.hpp" |
Bob King | 18a6850 | 2020-04-17 14:19:56 +0800 | [diff] [blame] | 40 | #include "set_device_action.hpp" |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 41 | |
| 42 | #include <nlohmann/json.hpp> |
| 43 | |
| 44 | #include <cstdint> |
| 45 | #include <filesystem> |
| 46 | #include <memory> |
| 47 | #include <stdexcept> |
| 48 | #include <string> |
| 49 | #include <tuple> |
| 50 | #include <vector> |
| 51 | |
| 52 | namespace phosphor::power::regulators::config_file_parser |
| 53 | { |
| 54 | |
| 55 | /** |
| 56 | * Parses the specified JSON configuration file. |
| 57 | * |
| 58 | * Returns the corresponding C++ Rule and Chassis objects. |
| 59 | * |
| 60 | * Throws a ConfigFileParserError if an error occurs. |
| 61 | * |
| 62 | * @param pathName configuration file path name |
| 63 | * @return tuple containing vectors of Rule and Chassis objects |
| 64 | */ |
| 65 | std::tuple<std::vector<std::unique_ptr<Rule>>, |
| 66 | std::vector<std::unique_ptr<Chassis>>> |
| 67 | parse(const std::filesystem::path& pathName); |
| 68 | |
| 69 | /* |
| 70 | * Internal implementation details for parse() |
| 71 | */ |
| 72 | namespace internal |
| 73 | { |
| 74 | |
| 75 | /** |
| 76 | * Returns the specified property of the specified JSON element. |
| 77 | * |
| 78 | * Throws an invalid_argument exception if the property does not exist. |
| 79 | * |
| 80 | * @param element JSON element |
| 81 | * @param property property name |
| 82 | */ |
| 83 | inline const nlohmann::json& getRequiredProperty(const nlohmann::json& element, |
| 84 | const std::string& property) |
| 85 | { |
| 86 | auto it = element.find(property); |
| 87 | if (it == element.end()) |
| 88 | { |
| 89 | throw std::invalid_argument{"Required property missing: " + property}; |
| 90 | } |
| 91 | return *it; |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * Parses a JSON element containing an action. |
| 96 | * |
| 97 | * Returns the corresponding C++ Action object. |
| 98 | * |
| 99 | * Throws an exception if parsing fails. |
| 100 | * |
| 101 | * @param element JSON element |
| 102 | * @return Action object |
| 103 | */ |
| 104 | std::unique_ptr<Action> parseAction(const nlohmann::json& element); |
| 105 | |
| 106 | /** |
| 107 | * Parses a JSON element containing an array of actions. |
| 108 | * |
| 109 | * Returns the corresponding C++ Action objects. |
| 110 | * |
| 111 | * Throws an exception if parsing fails. |
| 112 | * |
| 113 | * @param element JSON element |
| 114 | * @return vector of Action objects |
| 115 | */ |
| 116 | std::vector<std::unique_ptr<Action>> |
| 117 | parseActionArray(const nlohmann::json& element); |
| 118 | |
| 119 | /** |
Bob King | 3a78754 | 2020-04-14 13:45:01 +0800 | [diff] [blame] | 120 | * Parses a JSON element containing an and action. |
| 121 | * |
| 122 | * Returns the corresponding C++ AndAction object. |
| 123 | * |
| 124 | * Throws an exception if parsing fails. |
| 125 | * |
| 126 | * @param element JSON element |
| 127 | * @return AndAction object |
| 128 | */ |
| 129 | std::unique_ptr<AndAction> parseAnd(const nlohmann::json& element); |
| 130 | |
| 131 | /** |
Bob King | f617f89 | 2020-03-30 19:03:35 +0800 | [diff] [blame] | 132 | * Parses a JSON element containing a bit position (from 0-7). |
| 133 | * |
| 134 | * Returns the corresponding C++ uint8_t value. |
| 135 | * |
| 136 | * Throws an exception if parsing fails. |
| 137 | * |
| 138 | * @param element JSON element |
| 139 | * @return uint8_t value |
| 140 | */ |
| 141 | inline uint8_t parseBitPosition(const nlohmann::json& element) |
| 142 | { |
| 143 | // Verify element contains an integer |
| 144 | if (!element.is_number_integer()) |
| 145 | { |
| 146 | throw std::invalid_argument{"Element is not an integer"}; |
| 147 | } |
Bob King | 6afbf1a | 2020-04-06 17:19:01 +0800 | [diff] [blame] | 148 | int value = element.get<int>(); |
Bob King | f617f89 | 2020-03-30 19:03:35 +0800 | [diff] [blame] | 149 | if ((value < 0) || (value > 7)) |
| 150 | { |
| 151 | throw std::invalid_argument{"Element is not a bit position"}; |
| 152 | } |
| 153 | return static_cast<uint8_t>(value); |
| 154 | } |
| 155 | |
| 156 | /** |
| 157 | * Parses a JSON element containing a bit value (0 or 1). |
| 158 | * |
| 159 | * Returns the corresponding C++ uint8_t value. |
| 160 | * |
| 161 | * Throws an exception if parsing fails. |
| 162 | * |
| 163 | * @param element JSON element |
| 164 | * @return uint8_t value |
| 165 | */ |
| 166 | inline uint8_t parseBitValue(const nlohmann::json& element) |
| 167 | { |
| 168 | // Verify element contains an integer |
| 169 | if (!element.is_number_integer()) |
| 170 | { |
| 171 | throw std::invalid_argument{"Element is not an integer"}; |
| 172 | } |
Bob King | 6afbf1a | 2020-04-06 17:19:01 +0800 | [diff] [blame] | 173 | int value = element.get<int>(); |
Bob King | f617f89 | 2020-03-30 19:03:35 +0800 | [diff] [blame] | 174 | if ((value < 0) || (value > 1)) |
| 175 | { |
| 176 | throw std::invalid_argument{"Element is not a bit value"}; |
| 177 | } |
| 178 | return static_cast<uint8_t>(value); |
| 179 | } |
| 180 | |
| 181 | /** |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 182 | * Parses a JSON element containing a boolean. |
| 183 | * |
| 184 | * Returns the corresponding C++ boolean value. |
| 185 | * |
| 186 | * Throws an exception if parsing fails. |
| 187 | * |
| 188 | * @param element JSON element |
| 189 | * @return boolean value |
| 190 | */ |
| 191 | inline bool parseBoolean(const nlohmann::json& element) |
| 192 | { |
| 193 | // Verify element contains a boolean |
| 194 | if (!element.is_boolean()) |
| 195 | { |
| 196 | throw std::invalid_argument{"Element is not a boolean"}; |
| 197 | } |
| 198 | return element.get<bool>(); |
| 199 | } |
| 200 | |
| 201 | /** |
Bob King | 0e70113 | 2020-04-03 21:50:31 +0800 | [diff] [blame] | 202 | * Parses a JSON element containing a chassis. |
| 203 | * |
| 204 | * Returns the corresponding C++ Chassis object. |
| 205 | * |
| 206 | * Throws an exception if parsing fails. |
| 207 | * |
| 208 | * @param element JSON element |
| 209 | * @return Chassis object |
| 210 | */ |
| 211 | std::unique_ptr<Chassis> parseChassis(const nlohmann::json& element); |
| 212 | |
| 213 | /** |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 214 | * Parses a JSON element containing an array of chassis. |
| 215 | * |
| 216 | * Returns the corresponding C++ Chassis objects. |
| 217 | * |
| 218 | * Throws an exception if parsing fails. |
| 219 | * |
| 220 | * @param element JSON element |
| 221 | * @return vector of Chassis objects |
| 222 | */ |
| 223 | std::vector<std::unique_ptr<Chassis>> |
| 224 | parseChassisArray(const nlohmann::json& element); |
| 225 | |
| 226 | /** |
Bob King | b267b7e | 2020-04-22 14:42:39 +0800 | [diff] [blame] | 227 | * Parses a JSON element containing a compare_presence action. |
| 228 | * |
| 229 | * Returns the corresponding C++ ComparePresenceAction object. |
| 230 | * |
| 231 | * Throws an exception if parsing fails. |
| 232 | * |
| 233 | * @param element JSON element |
| 234 | * @return ComparePresenceAction object |
| 235 | */ |
| 236 | std::unique_ptr<ComparePresenceAction> |
| 237 | parseComparePresence(const nlohmann::json& element); |
| 238 | |
| 239 | /** |
Bob King | 33e7eaa | 2020-04-01 18:09:34 +0800 | [diff] [blame] | 240 | * Parses a JSON element containing a configuration. |
| 241 | * |
| 242 | * Returns the corresponding C++ Configuration object. |
| 243 | * |
| 244 | * Throws an exception if parsing fails. |
| 245 | * |
| 246 | * @param element JSON element |
| 247 | * @return Configuration object |
| 248 | */ |
| 249 | std::unique_ptr<Configuration> |
| 250 | parseConfiguration(const nlohmann::json& element); |
| 251 | |
| 252 | /** |
Bob King | 9c36c5f | 2020-04-06 11:34:09 +0800 | [diff] [blame] | 253 | * Parses a JSON element containing a device. |
| 254 | * |
| 255 | * Returns the corresponding C++ Device object. |
| 256 | * |
| 257 | * Throws an exception if parsing fails. |
| 258 | * |
| 259 | * @param element JSON element |
| 260 | * @return Device object |
| 261 | */ |
| 262 | std::unique_ptr<Device> parseDevice(const nlohmann::json& element); |
| 263 | |
| 264 | /** |
Bob King | 0e70113 | 2020-04-03 21:50:31 +0800 | [diff] [blame] | 265 | * Parses a JSON element containing an array of devices. |
| 266 | * |
| 267 | * Returns the corresponding C++ Device objects. |
| 268 | * |
| 269 | * Throws an exception if parsing fails. |
| 270 | * |
| 271 | * @param element JSON element |
| 272 | * @return vector of Device objects |
| 273 | */ |
| 274 | std::vector<std::unique_ptr<Device>> |
| 275 | parseDeviceArray(const nlohmann::json& element); |
| 276 | |
| 277 | /** |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 278 | * Parses a JSON element containing a double (floating point number). |
| 279 | * |
| 280 | * Returns the corresponding C++ double value. |
| 281 | * |
| 282 | * Throws an exception if parsing fails. |
| 283 | * |
| 284 | * @param element JSON element |
| 285 | * @return double value |
| 286 | */ |
| 287 | inline double parseDouble(const nlohmann::json& element) |
| 288 | { |
| 289 | // Verify element contains a number (integer or floating point) |
| 290 | if (!element.is_number()) |
| 291 | { |
| 292 | throw std::invalid_argument{"Element is not a number"}; |
| 293 | } |
| 294 | return element.get<double>(); |
| 295 | } |
| 296 | |
| 297 | /** |
Bob King | bafcb86 | 2020-03-31 16:39:00 +0800 | [diff] [blame] | 298 | * Parses a JSON element containing a byte value expressed as a hexadecimal |
| 299 | * string. |
| 300 | * |
| 301 | * The JSON number data type does not support the hexadecimal format. For this |
| 302 | * reason, hexadecimal byte values are stored as strings in the configuration |
| 303 | * file. |
| 304 | * |
| 305 | * Returns the corresponding C++ uint8_t value. |
| 306 | * |
| 307 | * Throws an exception if parsing fails. |
| 308 | * |
| 309 | * @param element JSON element |
| 310 | * @return uint8_t value |
| 311 | */ |
| 312 | inline uint8_t parseHexByte(const nlohmann::json& element) |
| 313 | { |
| 314 | if (!element.is_string()) |
| 315 | { |
| 316 | throw std::invalid_argument{"Element is not a string"}; |
| 317 | } |
Bob King | 6afbf1a | 2020-04-06 17:19:01 +0800 | [diff] [blame] | 318 | std::string value = element.get<std::string>(); |
Bob King | bafcb86 | 2020-03-31 16:39:00 +0800 | [diff] [blame] | 319 | |
| 320 | bool isHex = (value.compare(0, 2, "0x") == 0) && (value.size() > 2) && |
| 321 | (value.size() < 5) && |
| 322 | (value.find_first_not_of("0123456789abcdefABCDEF", 2) == |
| 323 | std::string::npos); |
| 324 | if (!isHex) |
| 325 | { |
| 326 | throw std::invalid_argument{"Element is not hexadecimal string"}; |
| 327 | } |
| 328 | return static_cast<uint8_t>(std::stoul(value, 0, 0)); |
| 329 | } |
| 330 | |
| 331 | /** |
| 332 | * Parses a JSON element containing an array of byte values expressed as a |
| 333 | * hexadecimal strings. |
| 334 | * |
| 335 | * Returns the corresponding C++ uint8_t values. |
| 336 | * |
| 337 | * Throws an exception if parsing fails. |
| 338 | * |
| 339 | * @param element JSON element |
| 340 | * @return vector of uint8_t |
| 341 | */ |
| 342 | std::vector<uint8_t> parseHexByteArray(const nlohmann::json& element); |
| 343 | |
| 344 | /** |
Bob King | f09bfe0 | 2020-04-13 17:21:15 +0800 | [diff] [blame] | 345 | * Parses a JSON element containing an i2c_compare_bit action. |
| 346 | * |
| 347 | * Returns the corresponding C++ I2CCompareBitAction object. |
| 348 | * |
| 349 | * Throws an exception if parsing fails. |
| 350 | * |
| 351 | * @param element JSON element |
| 352 | * @return I2CCompareBitAction object |
| 353 | */ |
| 354 | std::unique_ptr<I2CCompareBitAction> |
| 355 | parseI2CCompareBit(const nlohmann::json& element); |
| 356 | |
| 357 | /** |
| 358 | * Parses a JSON element containing an i2c_compare_byte action. |
| 359 | * |
| 360 | * Returns the corresponding C++ I2CCompareByteAction object. |
| 361 | * |
| 362 | * Throws an exception if parsing fails. |
| 363 | * |
| 364 | * @param element JSON element |
| 365 | * @return I2CCompareByteAction object |
| 366 | */ |
| 367 | std::unique_ptr<I2CCompareByteAction> |
| 368 | parseI2CCompareByte(const nlohmann::json& element); |
| 369 | |
| 370 | /** |
| 371 | * Parses a JSON element containing an i2c_compare_bytes action. |
| 372 | * |
| 373 | * Returns the corresponding C++ I2CCompareBytesAction object. |
| 374 | * |
| 375 | * Throws an exception if parsing fails. |
| 376 | * |
| 377 | * @param element JSON element |
| 378 | * @return I2CCompareBytesAction object |
| 379 | */ |
| 380 | std::unique_ptr<I2CCompareBytesAction> |
| 381 | parseI2CCompareBytes(const nlohmann::json& element); |
| 382 | |
| 383 | /** |
Bob King | 9c36c5f | 2020-04-06 11:34:09 +0800 | [diff] [blame] | 384 | * Parses a JSON element containing an i2c_interface. |
| 385 | * |
| 386 | * Returns the corresponding C++ i2c::I2CInterface object. |
| 387 | * |
| 388 | * Throws an exception if parsing fails. |
| 389 | * |
| 390 | * @param element JSON element |
| 391 | * @return i2c::I2CInterface object |
| 392 | */ |
| 393 | std::unique_ptr<i2c::I2CInterface> |
| 394 | parseI2CInterface(const nlohmann::json& element); |
| 395 | |
| 396 | /** |
Bob King | f617f89 | 2020-03-30 19:03:35 +0800 | [diff] [blame] | 397 | * Parses a JSON element containing an i2c_write_bit action. |
| 398 | * |
| 399 | * Returns the corresponding C++ I2CWriteBitAction object. |
| 400 | * |
| 401 | * Throws an exception if parsing fails. |
| 402 | * |
| 403 | * @param element JSON element |
| 404 | * @return I2CWriteBitAction object |
| 405 | */ |
| 406 | std::unique_ptr<I2CWriteBitAction> |
| 407 | parseI2CWriteBit(const nlohmann::json& element); |
| 408 | |
| 409 | /** |
Bob King | 87ff9d7 | 2020-03-31 14:02:55 +0800 | [diff] [blame] | 410 | * Parses a JSON element containing an i2c_write_byte action. |
| 411 | * |
| 412 | * Returns the corresponding C++ I2CWriteByteAction object. |
| 413 | * |
| 414 | * Throws an exception if parsing fails. |
| 415 | * |
| 416 | * @param element JSON element |
| 417 | * @return I2CWriteByteAction object |
| 418 | */ |
| 419 | std::unique_ptr<I2CWriteByteAction> |
| 420 | parseI2CWriteByte(const nlohmann::json& element); |
| 421 | |
| 422 | /** |
Bob King | bafcb86 | 2020-03-31 16:39:00 +0800 | [diff] [blame] | 423 | * Parses a JSON element containing an i2c_write_bytes action. |
| 424 | * |
| 425 | * Returns the corresponding C++ I2CWriteBytesAction object. |
| 426 | * |
| 427 | * Throws an exception if parsing fails. |
| 428 | * |
| 429 | * @param element JSON element |
| 430 | * @return I2CWriteBytesAction object |
| 431 | */ |
| 432 | std::unique_ptr<I2CWriteBytesAction> |
| 433 | parseI2CWriteBytes(const nlohmann::json& element); |
| 434 | |
| 435 | /** |
Bob King | 93a89d7 | 2020-04-15 15:11:11 +0800 | [diff] [blame] | 436 | * Parses a JSON element containing an if action. |
| 437 | * |
| 438 | * Returns the corresponding C++ IfAction object. |
| 439 | * |
| 440 | * Throws an exception if parsing fails. |
| 441 | * |
| 442 | * @param element JSON element |
| 443 | * @return IfAction object |
| 444 | */ |
| 445 | std::unique_ptr<IfAction> parseIf(const nlohmann::json& element); |
| 446 | |
| 447 | /** |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 448 | * Parses a JSON element containing an 8-bit signed integer. |
| 449 | * |
| 450 | * Returns the corresponding C++ int8_t value. |
| 451 | * |
| 452 | * Throws an exception if parsing fails. |
| 453 | * |
| 454 | * @param element JSON element |
| 455 | * @return int8_t value |
| 456 | */ |
| 457 | inline int8_t parseInt8(const nlohmann::json& element) |
| 458 | { |
| 459 | // Verify element contains an integer |
| 460 | if (!element.is_number_integer()) |
| 461 | { |
| 462 | throw std::invalid_argument{"Element is not an integer"}; |
| 463 | } |
Bob King | 6afbf1a | 2020-04-06 17:19:01 +0800 | [diff] [blame] | 464 | int value = element.get<int>(); |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 465 | if ((value < INT8_MIN) || (value > INT8_MAX)) |
| 466 | { |
| 467 | throw std::invalid_argument{"Element is not an 8-bit signed integer"}; |
| 468 | } |
| 469 | return static_cast<int8_t>(value); |
| 470 | } |
| 471 | |
| 472 | /** |
Bob King | f1b58dc | 2020-04-14 14:53:10 +0800 | [diff] [blame] | 473 | * Parses a JSON element containing a not action. |
| 474 | * |
| 475 | * Returns the corresponding C++ NotAction object. |
| 476 | * |
| 477 | * Throws an exception if parsing fails. |
| 478 | * |
| 479 | * @param element JSON element |
| 480 | * @return NotAction object |
| 481 | */ |
| 482 | std::unique_ptr<NotAction> parseNot(const nlohmann::json& element); |
| 483 | |
| 484 | /** |
Bob King | 0b51a9b | 2020-04-15 13:24:18 +0800 | [diff] [blame] | 485 | * Parses a JSON element containing an or action. |
| 486 | * |
| 487 | * Returns the corresponding C++ OrAction object. |
| 488 | * |
| 489 | * Throws an exception if parsing fails. |
| 490 | * |
| 491 | * @param element JSON element |
| 492 | * @return OrAction object |
| 493 | */ |
| 494 | std::unique_ptr<OrAction> parseOr(const nlohmann::json& element); |
| 495 | |
| 496 | /** |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 497 | * Parses a JSON element containing a pmbus_write_vout_command action. |
| 498 | * |
| 499 | * Returns the corresponding C++ PMBusWriteVoutCommandAction object. |
| 500 | * |
| 501 | * Throws an exception if parsing fails. |
| 502 | * |
| 503 | * @param element JSON element |
| 504 | * @return PMBusWriteVoutCommandAction object |
| 505 | */ |
| 506 | std::unique_ptr<PMBusWriteVoutCommandAction> |
| 507 | parsePMBusWriteVoutCommand(const nlohmann::json& element); |
| 508 | |
| 509 | /** |
Bob King | 2aafb1c | 2020-04-16 15:24:32 +0800 | [diff] [blame] | 510 | * Parses a JSON element containing a presence detection operation. |
| 511 | * |
| 512 | * Returns the corresponding C++ PresenceDetection object. |
| 513 | * |
| 514 | * Throws an exception if parsing fails. |
| 515 | * |
| 516 | * @param element JSON element |
| 517 | * @return PresenceDetection object |
| 518 | */ |
| 519 | std::unique_ptr<PresenceDetection> |
| 520 | parsePresenceDetection(const nlohmann::json& element); |
| 521 | |
| 522 | /** |
Bob King | a2f2a0d | 2020-04-09 13:32:14 +0800 | [diff] [blame] | 523 | * Parses a JSON element containing a rail. |
| 524 | * |
| 525 | * Returns the corresponding C++ Rail object. |
| 526 | * |
| 527 | * Throws an exception if parsing fails. |
| 528 | * |
| 529 | * @param element JSON element |
| 530 | * @return Rail object |
| 531 | */ |
| 532 | std::unique_ptr<Rail> parseRail(const nlohmann::json& element); |
| 533 | |
| 534 | /** |
Bob King | 9c36c5f | 2020-04-06 11:34:09 +0800 | [diff] [blame] | 535 | * Parses a JSON element containing an array of rails. |
| 536 | * |
| 537 | * Returns the corresponding C++ Rail objects. |
| 538 | * |
| 539 | * Throws an exception if parsing fails. |
| 540 | * |
| 541 | * @param element JSON element |
| 542 | * @return vector of Rail objects |
| 543 | */ |
| 544 | std::vector<std::unique_ptr<Rail>> |
| 545 | parseRailArray(const nlohmann::json& element); |
| 546 | |
| 547 | /** |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 548 | * Parses the JSON root element of the entire configuration file. |
| 549 | * |
| 550 | * Returns the corresponding C++ Rule and Chassis objects. |
| 551 | * |
| 552 | * Throws an exception if parsing fails. |
| 553 | * |
| 554 | * @param element JSON element |
| 555 | * @return tuple containing vectors of Rule and Chassis objects |
| 556 | */ |
| 557 | std::tuple<std::vector<std::unique_ptr<Rule>>, |
| 558 | std::vector<std::unique_ptr<Chassis>>> |
| 559 | parseRoot(const nlohmann::json& element); |
| 560 | |
| 561 | /** |
| 562 | * Parses a JSON element containing a rule. |
| 563 | * |
| 564 | * Returns the corresponding C++ Rule object. |
| 565 | * |
| 566 | * Throws an exception if parsing fails. |
| 567 | * |
| 568 | * @param element JSON element |
| 569 | * @return Rule object |
| 570 | */ |
| 571 | std::unique_ptr<Rule> parseRule(const nlohmann::json& element); |
| 572 | |
| 573 | /** |
| 574 | * Parses a JSON element containing an array of rules. |
| 575 | * |
| 576 | * Returns the corresponding C++ Rule objects. |
| 577 | * |
| 578 | * Throws an exception if parsing fails. |
| 579 | * |
| 580 | * @param element JSON element |
| 581 | * @return vector of Rule objects |
| 582 | */ |
| 583 | std::vector<std::unique_ptr<Rule>> |
| 584 | parseRuleArray(const nlohmann::json& element); |
| 585 | |
| 586 | /** |
Bob King | 33e7eaa | 2020-04-01 18:09:34 +0800 | [diff] [blame] | 587 | * Parses the "rule_id" or "actions" property in a JSON element. |
| 588 | * |
| 589 | * The element must contain one property or the other but not both. |
| 590 | * |
| 591 | * If the element contains a "rule_id" property, the corresponding C++ |
| 592 | * RunRuleAction object is returned. |
| 593 | * |
| 594 | * If the element contains an "actions" property, the corresponding C++ Action |
| 595 | * objects are returned. |
| 596 | * |
| 597 | * Throws an exception if parsing fails. |
| 598 | * |
| 599 | * @param element JSON element |
| 600 | * @return vector of Action objects |
| 601 | */ |
| 602 | std::vector<std::unique_ptr<Action>> |
| 603 | parseRuleIDOrActionsProperty(const nlohmann::json& element); |
| 604 | |
| 605 | /** |
Bob King | 315b0b6 | 2020-04-03 21:47:58 +0800 | [diff] [blame] | 606 | * Parses a JSON element containing a run_rule action. |
| 607 | * |
| 608 | * Returns the corresponding C++ RunRuleAction object. |
| 609 | * |
| 610 | * Throws an exception if parsing fails. |
| 611 | * |
| 612 | * @param element JSON element |
| 613 | * @return RunRuleAction object |
| 614 | */ |
| 615 | std::unique_ptr<RunRuleAction> parseRunRule(const nlohmann::json& element); |
| 616 | |
| 617 | /** |
Bob King | a2f2a0d | 2020-04-09 13:32:14 +0800 | [diff] [blame] | 618 | * Parses a JSON element containing a sensor monitoring operation. |
| 619 | * |
| 620 | * Returns the corresponding C++ SensorMonitoring object. |
| 621 | * |
| 622 | * Throws an exception if parsing fails. |
| 623 | * |
| 624 | * @param element JSON element |
| 625 | * @return SensorMonitoring object |
| 626 | */ |
| 627 | std::unique_ptr<SensorMonitoring> |
| 628 | parseSensorMonitoring(const nlohmann::json& element); |
| 629 | |
| 630 | /** |
Bob King | 18a6850 | 2020-04-17 14:19:56 +0800 | [diff] [blame] | 631 | * Parses a JSON element containing a set_device action. |
| 632 | * |
| 633 | * Returns the corresponding C++ SetDeviceAction object. |
| 634 | * |
| 635 | * Throws an exception if parsing fails. |
| 636 | * |
| 637 | * @param element JSON element |
| 638 | * @return SetDeviceAction object |
| 639 | */ |
| 640 | std::unique_ptr<SetDeviceAction> parseSetDevice(const nlohmann::json& element); |
| 641 | |
| 642 | /** |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 643 | * Parses a JSON element containing a string. |
| 644 | * |
| 645 | * Returns the corresponding C++ string. |
| 646 | * |
| 647 | * Throws an exception if parsing fails. |
| 648 | * |
| 649 | * @param element JSON element |
| 650 | * @param isEmptyValid indicates whether an empty string value is valid |
| 651 | * @return string value |
| 652 | */ |
| 653 | inline std::string parseString(const nlohmann::json& element, |
| 654 | bool isEmptyValid = false) |
| 655 | { |
| 656 | if (!element.is_string()) |
| 657 | { |
| 658 | throw std::invalid_argument{"Element is not a string"}; |
| 659 | } |
Bob King | 6afbf1a | 2020-04-06 17:19:01 +0800 | [diff] [blame] | 660 | std::string value = element.get<std::string>(); |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 661 | if (value.empty() && !isEmptyValid) |
| 662 | { |
| 663 | throw std::invalid_argument{"Element contains an empty string"}; |
| 664 | } |
| 665 | return value; |
| 666 | } |
| 667 | |
| 668 | /** |
Bob King | f617f89 | 2020-03-30 19:03:35 +0800 | [diff] [blame] | 669 | * Parses a JSON element containing an 8-bit unsigned integer. |
| 670 | * |
| 671 | * Returns the corresponding C++ uint8_t value. |
| 672 | * |
| 673 | * Throws an exception if parsing fails. |
| 674 | * |
| 675 | * @param element JSON element |
| 676 | * @return uint8_t value |
| 677 | */ |
| 678 | inline uint8_t parseUint8(const nlohmann::json& element) |
| 679 | { |
| 680 | // Verify element contains an integer |
| 681 | if (!element.is_number_integer()) |
| 682 | { |
| 683 | throw std::invalid_argument{"Element is not an integer"}; |
| 684 | } |
Bob King | 6afbf1a | 2020-04-06 17:19:01 +0800 | [diff] [blame] | 685 | int value = element.get<int>(); |
Bob King | f617f89 | 2020-03-30 19:03:35 +0800 | [diff] [blame] | 686 | if ((value < 0) || (value > UINT8_MAX)) |
| 687 | { |
| 688 | throw std::invalid_argument{"Element is not an 8-bit unsigned integer"}; |
| 689 | } |
| 690 | return static_cast<uint8_t>(value); |
| 691 | } |
| 692 | |
| 693 | /** |
Bob King | 0e70113 | 2020-04-03 21:50:31 +0800 | [diff] [blame] | 694 | * Parses a JSON element containing an unsigned integer. |
| 695 | * |
| 696 | * Returns the corresponding C++ unsigned int value. |
| 697 | * |
| 698 | * Throws an exception if parsing fails. |
| 699 | * |
| 700 | * @param element JSON element |
| 701 | * @return unsigned int value |
| 702 | */ |
| 703 | inline unsigned int parseUnsignedInteger(const nlohmann::json& element) |
| 704 | { |
| 705 | // Verify element contains an unsigned integer |
| 706 | if (!element.is_number_unsigned()) |
| 707 | { |
| 708 | throw std::invalid_argument{"Element is not an unsigned integer"}; |
| 709 | } |
| 710 | return element.get<unsigned int>(); |
| 711 | } |
| 712 | |
| 713 | /** |
Shawn McCarney | 0e8c68a | 2020-03-27 01:44:48 -0500 | [diff] [blame] | 714 | * Verifies that the specified JSON element is a JSON array. |
| 715 | * |
| 716 | * Throws an invalid_argument exception if the element is not an array. |
| 717 | * |
| 718 | * @param element JSON element |
| 719 | */ |
| 720 | inline void verifyIsArray(const nlohmann::json& element) |
| 721 | { |
| 722 | if (!element.is_array()) |
| 723 | { |
| 724 | throw std::invalid_argument{"Element is not an array"}; |
| 725 | } |
| 726 | } |
| 727 | |
| 728 | /** |
| 729 | * Verifies that the specified JSON element is a JSON object. |
| 730 | * |
| 731 | * Throws an invalid_argument exception if the element is not an object. |
| 732 | * |
| 733 | * @param element JSON element |
| 734 | */ |
| 735 | inline void verifyIsObject(const nlohmann::json& element) |
| 736 | { |
| 737 | if (!element.is_object()) |
| 738 | { |
| 739 | throw std::invalid_argument{"Element is not an object"}; |
| 740 | } |
| 741 | } |
| 742 | |
| 743 | /** |
| 744 | * Verifies that the specified JSON element contains the expected number of |
| 745 | * properties. |
| 746 | * |
| 747 | * Throws an invalid_argument exception if the element contains a different |
| 748 | * number of properties. This indicates the element contains an invalid |
| 749 | * property. |
| 750 | * |
| 751 | * @param element JSON element |
| 752 | * @param expectedCount expected number of properties in element |
| 753 | */ |
| 754 | inline void verifyPropertyCount(const nlohmann::json& element, |
| 755 | unsigned int expectedCount) |
| 756 | { |
| 757 | if (element.size() != expectedCount) |
| 758 | { |
| 759 | throw std::invalid_argument{"Element contains an invalid property"}; |
| 760 | } |
| 761 | } |
| 762 | |
| 763 | } // namespace internal |
| 764 | |
| 765 | } // namespace phosphor::power::regulators::config_file_parser |