| 1 | // |
| 2 | // XMLConfiguration.cpp |
| 3 | // |
| 4 | // Library: Util |
| 5 | // Package: Configuration |
| 6 | // Module: XMLConfiguration |
| 7 | // |
| 8 | // Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH. |
| 9 | // and Contributors. |
| 10 | // |
| 11 | // SPDX-License-Identifier: BSL-1.0 |
| 12 | // |
| 13 | |
| 14 | |
| 15 | #include "Poco/Util/XMLConfiguration.h" |
| 16 | |
| 17 | |
| 18 | #ifndef POCO_UTIL_NO_XMLCONFIGURATION |
| 19 | |
| 20 | |
| 21 | #include "Poco/SAX/InputSource.h" |
| 22 | #include "Poco/DOM/DOMParser.h" |
| 23 | #include "Poco/DOM/Element.h" |
| 24 | #include "Poco/DOM/Attr.h" |
| 25 | #include "Poco/DOM/Text.h" |
| 26 | #include "Poco/XML/XMLWriter.h" |
| 27 | #include "Poco/Exception.h" |
| 28 | #include "Poco/NumberParser.h" |
| 29 | #include "Poco/NumberFormatter.h" |
| 30 | #include <set> |
| 31 | |
| 32 | |
| 33 | namespace Poco { |
| 34 | namespace Util { |
| 35 | |
| 36 | |
| 37 | XMLConfiguration::XMLConfiguration(): |
| 38 | _delim('.') |
| 39 | { |
| 40 | loadEmpty("config" ); |
| 41 | } |
| 42 | |
| 43 | |
| 44 | XMLConfiguration::XMLConfiguration(char delim): |
| 45 | _delim(delim) |
| 46 | { |
| 47 | loadEmpty("config" ); |
| 48 | } |
| 49 | |
| 50 | |
| 51 | XMLConfiguration::XMLConfiguration(Poco::XML::InputSource* pInputSource): |
| 52 | _delim('.') |
| 53 | { |
| 54 | load(pInputSource); |
| 55 | } |
| 56 | |
| 57 | |
| 58 | XMLConfiguration::XMLConfiguration(Poco::XML::InputSource* pInputSource, char delim): |
| 59 | _delim(delim) |
| 60 | { |
| 61 | load(pInputSource); |
| 62 | } |
| 63 | |
| 64 | |
| 65 | XMLConfiguration::XMLConfiguration(std::istream& istr): |
| 66 | _delim('.') |
| 67 | { |
| 68 | load(istr); |
| 69 | } |
| 70 | |
| 71 | |
| 72 | XMLConfiguration::XMLConfiguration(std::istream& istr, char delim): |
| 73 | _delim(delim) |
| 74 | { |
| 75 | load(istr); |
| 76 | } |
| 77 | |
| 78 | |
| 79 | XMLConfiguration::XMLConfiguration(const std::string& path): |
| 80 | _delim('.') |
| 81 | { |
| 82 | load(path); |
| 83 | } |
| 84 | |
| 85 | |
| 86 | XMLConfiguration::XMLConfiguration(const std::string& path, char delim): |
| 87 | _delim(delim) |
| 88 | { |
| 89 | load(path); |
| 90 | } |
| 91 | |
| 92 | |
| 93 | XMLConfiguration::XMLConfiguration(const Poco::XML::Document* pDocument): |
| 94 | _delim('.') |
| 95 | { |
| 96 | load(pDocument); |
| 97 | } |
| 98 | |
| 99 | |
| 100 | XMLConfiguration::XMLConfiguration(const Poco::XML::Document* pDocument, char delim): |
| 101 | _delim(delim) |
| 102 | { |
| 103 | load(pDocument); |
| 104 | } |
| 105 | |
| 106 | |
| 107 | XMLConfiguration::XMLConfiguration(const Poco::XML::Node* pNode): |
| 108 | _delim('.') |
| 109 | { |
| 110 | load(pNode); |
| 111 | } |
| 112 | |
| 113 | |
| 114 | XMLConfiguration::XMLConfiguration(const Poco::XML::Node* pNode, char delim): |
| 115 | _delim(delim) |
| 116 | { |
| 117 | load(pNode); |
| 118 | } |
| 119 | |
| 120 | |
| 121 | XMLConfiguration::~XMLConfiguration() |
| 122 | { |
| 123 | } |
| 124 | |
| 125 | |
| 126 | void XMLConfiguration::load(Poco::XML::InputSource* pInputSource, unsigned long namePoolSize) |
| 127 | { |
| 128 | poco_check_ptr (pInputSource); |
| 129 | |
| 130 | Poco::XML::DOMParser parser(namePoolSize); |
| 131 | parser.setFeature(Poco::XML::XMLReader::FEATURE_NAMESPACES, false); |
| 132 | parser.setFeature(Poco::XML::DOMParser::FEATURE_FILTER_WHITESPACE, true); |
| 133 | Poco::XML::AutoPtr<Poco::XML::Document> pDoc = parser.parse(pInputSource); |
| 134 | load(pDoc); |
| 135 | } |
| 136 | |
| 137 | |
| 138 | void XMLConfiguration::load(Poco::XML::InputSource* pInputSource) |
| 139 | { |
| 140 | load(pInputSource, POCO_XML_NAMEPOOL_DEFAULT_SIZE); |
| 141 | } |
| 142 | |
| 143 | |
| 144 | void XMLConfiguration::load(std::istream& istr) |
| 145 | { |
| 146 | Poco::XML::InputSource src(istr); |
| 147 | load(&src); |
| 148 | } |
| 149 | |
| 150 | |
| 151 | void XMLConfiguration::load(const std::string& path) |
| 152 | { |
| 153 | Poco::XML::InputSource src(path); |
| 154 | load(&src); |
| 155 | } |
| 156 | |
| 157 | |
| 158 | void XMLConfiguration::load(const Poco::XML::Document* pDocument) |
| 159 | { |
| 160 | poco_check_ptr (pDocument); |
| 161 | |
| 162 | _pDocument = Poco::XML::AutoPtr<Poco::XML::Document>(const_cast<Poco::XML::Document*>(pDocument), true); |
| 163 | _pRoot = Poco::XML::AutoPtr<Poco::XML::Node>(pDocument->documentElement(), true); |
| 164 | } |
| 165 | |
| 166 | |
| 167 | void XMLConfiguration::load(const Poco::XML::Node* pNode) |
| 168 | { |
| 169 | poco_check_ptr (pNode); |
| 170 | |
| 171 | if (pNode->nodeType() == Poco::XML::Node::DOCUMENT_NODE) |
| 172 | { |
| 173 | load(static_cast<const Poco::XML::Document*>(pNode)); |
| 174 | } |
| 175 | else |
| 176 | { |
| 177 | _pDocument = Poco::XML::AutoPtr<Poco::XML::Document>(pNode->ownerDocument(), true); |
| 178 | _pRoot = Poco::XML::AutoPtr<Poco::XML::Node>(const_cast<Poco::XML::Node*>(pNode), true); |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | |
| 183 | void XMLConfiguration::loadEmpty(const std::string& rootElementName) |
| 184 | { |
| 185 | _pDocument = new Poco::XML::Document; |
| 186 | _pRoot = _pDocument->createElement(rootElementName); |
| 187 | _pDocument->appendChild(_pRoot); |
| 188 | } |
| 189 | |
| 190 | |
| 191 | void XMLConfiguration::save(const std::string& path) const |
| 192 | { |
| 193 | Poco::XML::DOMWriter writer; |
| 194 | writer.setNewLine("\n" ); |
| 195 | writer.setOptions(Poco::XML::XMLWriter::PRETTY_PRINT); |
| 196 | writer.writeNode(path, _pDocument); |
| 197 | } |
| 198 | |
| 199 | |
| 200 | void XMLConfiguration::save(std::ostream& ostr) const |
| 201 | { |
| 202 | Poco::XML::DOMWriter writer; |
| 203 | writer.setNewLine("\n" ); |
| 204 | writer.setOptions(Poco::XML::XMLWriter::PRETTY_PRINT); |
| 205 | writer.writeNode(ostr, _pDocument); |
| 206 | } |
| 207 | |
| 208 | |
| 209 | void XMLConfiguration::save(Poco::XML::DOMWriter& writer, const std::string& path) const |
| 210 | { |
| 211 | writer.writeNode(path, _pDocument); |
| 212 | } |
| 213 | |
| 214 | |
| 215 | void XMLConfiguration::save(Poco::XML::DOMWriter& writer, std::ostream& ostr) const |
| 216 | { |
| 217 | writer.writeNode(ostr, _pDocument); |
| 218 | } |
| 219 | |
| 220 | |
| 221 | bool XMLConfiguration::(const std::string& key, std::string& value) const |
| 222 | { |
| 223 | const Poco::XML::Node* pNode = findNode(key); |
| 224 | if (pNode) |
| 225 | { |
| 226 | value = pNode->innerText(); |
| 227 | return true; |
| 228 | } |
| 229 | else return false; |
| 230 | } |
| 231 | |
| 232 | |
| 233 | void XMLConfiguration::setRaw(const std::string& key, const std::string& value) |
| 234 | { |
| 235 | std::string::const_iterator it = key.begin(); |
| 236 | Poco::XML::Node* pNode = findNode(it, key.end(), _pRoot, true); |
| 237 | if (pNode) |
| 238 | { |
| 239 | unsigned short nodeType = pNode->nodeType(); |
| 240 | if (Poco::XML::Node::ATTRIBUTE_NODE == nodeType) |
| 241 | { |
| 242 | pNode->setNodeValue(value); |
| 243 | } |
| 244 | else if (Poco::XML::Node::ELEMENT_NODE == nodeType) |
| 245 | { |
| 246 | Poco::XML::Node* pChildNode = pNode->firstChild(); |
| 247 | if (pChildNode) |
| 248 | { |
| 249 | if (Poco::XML::Node::TEXT_NODE == pChildNode->nodeType()) |
| 250 | { |
| 251 | pChildNode->setNodeValue(value); |
| 252 | } |
| 253 | } |
| 254 | else |
| 255 | { |
| 256 | Poco::AutoPtr<Poco::XML::Node> pText = _pDocument->createTextNode(value); |
| 257 | pNode->appendChild(pText); |
| 258 | } |
| 259 | } |
| 260 | } |
| 261 | else throw NotFoundException("Node not found in XMLConfiguration" , key); |
| 262 | } |
| 263 | |
| 264 | |
| 265 | void XMLConfiguration::enumerate(const std::string& key, Keys& range) const |
| 266 | { |
| 267 | using Poco::NumberFormatter; |
| 268 | |
| 269 | std::multiset<std::string> keySet; |
| 270 | const Poco::XML::Node* pNode = findNode(key); |
| 271 | if (pNode) |
| 272 | { |
| 273 | const Poco::XML::Node* pChild = pNode->firstChild(); |
| 274 | while (pChild) |
| 275 | { |
| 276 | if (pChild->nodeType() == Poco::XML::Node::ELEMENT_NODE) |
| 277 | { |
| 278 | const std::string& nodeName = pChild->nodeName(); |
| 279 | int n = (int) keySet.count(nodeName); |
| 280 | if (n) |
| 281 | range.push_back(nodeName + "[" + NumberFormatter::format(n) + "]" ); |
| 282 | else |
| 283 | range.push_back(nodeName); |
| 284 | keySet.insert(nodeName); |
| 285 | } |
| 286 | pChild = pChild->nextSibling(); |
| 287 | } |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | |
| 292 | void XMLConfiguration::removeRaw(const std::string& key) |
| 293 | { |
| 294 | Poco::XML::Node* pNode = findNode(key); |
| 295 | |
| 296 | if (pNode) |
| 297 | { |
| 298 | if (pNode->nodeType() == Poco::XML::Node::ELEMENT_NODE) |
| 299 | { |
| 300 | Poco::XML::Node* pParent = pNode->parentNode(); |
| 301 | if (pParent) |
| 302 | { |
| 303 | pParent->removeChild(pNode); |
| 304 | } |
| 305 | } |
| 306 | else if (pNode->nodeType() == Poco::XML::Node::ATTRIBUTE_NODE) |
| 307 | { |
| 308 | Poco::XML::Attr* pAttr = dynamic_cast<Poco::XML::Attr*>(pNode); |
| 309 | Poco::XML::Element* pOwner = pAttr->ownerElement(); |
| 310 | if (pOwner) |
| 311 | { |
| 312 | pOwner->removeAttributeNode(pAttr); |
| 313 | } |
| 314 | } |
| 315 | } |
| 316 | } |
| 317 | |
| 318 | |
| 319 | const Poco::XML::Node* XMLConfiguration::findNode(const std::string& key) const |
| 320 | { |
| 321 | std::string::const_iterator it = key.begin(); |
| 322 | Poco::XML::Node* pRoot = const_cast<Poco::XML::Node*>(_pRoot.get()); |
| 323 | return findNode(it, key.end(), pRoot); |
| 324 | } |
| 325 | |
| 326 | |
| 327 | Poco::XML::Node* XMLConfiguration::findNode(const std::string& key) |
| 328 | { |
| 329 | std::string::const_iterator it = key.begin(); |
| 330 | Poco::XML::Node* pRoot = const_cast<Poco::XML::Node*>(_pRoot.get()); |
| 331 | return findNode(it, key.end(), pRoot); |
| 332 | } |
| 333 | |
| 334 | |
| 335 | Poco::XML::Node* XMLConfiguration::findNode(std::string::const_iterator& it, const std::string::const_iterator& end, Poco::XML::Node* pNode, bool create) const |
| 336 | { |
| 337 | if (pNode && it != end) |
| 338 | { |
| 339 | if (*it == '[') |
| 340 | { |
| 341 | ++it; |
| 342 | if (it != end && *it == '@') |
| 343 | { |
| 344 | ++it; |
| 345 | std::string attr; |
| 346 | while (it != end && *it != ']' && *it != '=') attr += *it++; |
| 347 | if (it != end && *it == '=') |
| 348 | { |
| 349 | ++it; |
| 350 | std::string value; |
| 351 | if (it != end && *it == '\'') |
| 352 | { |
| 353 | ++it; |
| 354 | while (it != end && *it != '\'') value += *it++; |
| 355 | if (it != end) ++it; |
| 356 | } |
| 357 | else |
| 358 | { |
| 359 | while (it != end && *it != ']') value += *it++; |
| 360 | } |
| 361 | if (it != end) ++it; |
| 362 | return findNode(it, end, findElement(attr, value, pNode), create); |
| 363 | } |
| 364 | else |
| 365 | { |
| 366 | if (it != end) ++it; |
| 367 | return findAttribute(attr, pNode, create); |
| 368 | } |
| 369 | } |
| 370 | else |
| 371 | { |
| 372 | std::string index; |
| 373 | while (it != end && *it != ']') index += *it++; |
| 374 | if (it != end) ++it; |
| 375 | return findNode(it, end, findElement(Poco::NumberParser::parse(index), pNode, create), create); |
| 376 | } |
| 377 | } |
| 378 | else |
| 379 | { |
| 380 | while (it != end && *it == _delim) ++it; |
| 381 | std::string key; |
| 382 | while (it != end && *it != _delim && *it != '[') key += *it++; |
| 383 | return findNode(it, end, findElement(key, pNode, create), create); |
| 384 | } |
| 385 | } |
| 386 | else return pNode; |
| 387 | } |
| 388 | |
| 389 | |
| 390 | Poco::XML::Node* XMLConfiguration::findElement(const std::string& name, Poco::XML::Node* pNode, bool create) |
| 391 | { |
| 392 | Poco::XML::Node* pChild = pNode->firstChild(); |
| 393 | while (pChild) |
| 394 | { |
| 395 | if (pChild->nodeType() == Poco::XML::Node::ELEMENT_NODE && pChild->nodeName() == name) |
| 396 | return pChild; |
| 397 | pChild = pChild->nextSibling(); |
| 398 | } |
| 399 | if (create) |
| 400 | { |
| 401 | Poco::AutoPtr<Poco::XML::Element> pElem = pNode->ownerDocument()->createElement(name); |
| 402 | pNode->appendChild(pElem); |
| 403 | return pElem; |
| 404 | } |
| 405 | else return 0; |
| 406 | } |
| 407 | |
| 408 | |
| 409 | Poco::XML::Node* XMLConfiguration::findElement(int index, Poco::XML::Node* pNode, bool create) |
| 410 | { |
| 411 | Poco::XML::Node* pRefNode = pNode; |
| 412 | if (index > 0) |
| 413 | { |
| 414 | pNode = pNode->nextSibling(); |
| 415 | while (pNode) |
| 416 | { |
| 417 | if (pNode->nodeName() == pRefNode->nodeName()) |
| 418 | { |
| 419 | if (--index == 0) break; |
| 420 | } |
| 421 | pNode = pNode->nextSibling(); |
| 422 | } |
| 423 | } |
| 424 | if (!pNode && create) |
| 425 | { |
| 426 | if (index == 1) |
| 427 | { |
| 428 | Poco::AutoPtr<Poco::XML::Element> pElem = pRefNode->ownerDocument()->createElement(pRefNode->nodeName()); |
| 429 | pRefNode->parentNode()->appendChild(pElem); |
| 430 | return pElem; |
| 431 | } |
| 432 | else throw Poco::InvalidArgumentException("Element index out of range." ); |
| 433 | } |
| 434 | return pNode; |
| 435 | } |
| 436 | |
| 437 | |
| 438 | Poco::XML::Node* XMLConfiguration::findElement(const std::string& attr, const std::string& value, Poco::XML::Node* pNode) |
| 439 | { |
| 440 | Poco::XML::Node* pRefNode = pNode; |
| 441 | Poco::XML::Element* pElem = dynamic_cast<Poco::XML::Element*>(pNode); |
| 442 | if (!(pElem && pElem->getAttribute(attr) == value)) |
| 443 | { |
| 444 | pNode = pNode->nextSibling(); |
| 445 | while (pNode) |
| 446 | { |
| 447 | if (pNode->nodeName() == pRefNode->nodeName()) |
| 448 | { |
| 449 | pElem = dynamic_cast<Poco::XML::Element*>(pNode); |
| 450 | if (pElem && pElem->getAttribute(attr) == value) break; |
| 451 | } |
| 452 | pNode = pNode->nextSibling(); |
| 453 | } |
| 454 | } |
| 455 | return pNode; |
| 456 | } |
| 457 | |
| 458 | |
| 459 | Poco::XML::Node* XMLConfiguration::findAttribute(const std::string& name, Poco::XML::Node* pNode, bool create) |
| 460 | { |
| 461 | Poco::XML::Node* pResult(0); |
| 462 | Poco::XML::Element* pElem = dynamic_cast<Poco::XML::Element*>(pNode); |
| 463 | if (pElem) |
| 464 | { |
| 465 | pResult = pElem->getAttributeNode(name); |
| 466 | if (!pResult && create) |
| 467 | { |
| 468 | Poco::AutoPtr<Poco::XML::Attr> pAttr = pNode->ownerDocument()->createAttribute(name); |
| 469 | pElem->setAttributeNode(pAttr); |
| 470 | return pAttr; |
| 471 | } |
| 472 | } |
| 473 | return pResult; |
| 474 | } |
| 475 | |
| 476 | |
| 477 | } } // namespace Poco::Util |
| 478 | |
| 479 | #endif // POCO_UTIL_NO_XMLCONFIGURATION |
| 480 | |