Array::Array(const Poco::DynamicAny& any) { if ( any.type() == typeid(Array) ) { *this = any.extract<Array>(); } }
int main(int argc, char** argv) { Poco::JSON::Object::Ptr obj; std::string dir = Poco::Environment::get("POCO_BASE") + "/JSON/samples/Benchmark/"; Poco::Path filePath(dir, "input"); std::ostringstream ostr; if ( filePath.isFile() ) { Poco::File inputFile(filePath); if ( inputFile.exists() ) { Poco::FileInputStream fis(filePath.toString()); Poco::StreamCopier::copyStream(fis, ostr); } else { std::cout << filePath.toString() << " doesn't exist!" << std::endl; return 1; } } std::cout << std::setw(25) << "POCO JSON"; std::string jsonStr = ostr.str(); try { Poco::JSON::DefaultHandler handler; Poco::JSON::Parser parser; parser.setHandler(&handler); Poco::Timestamp time1; parser.parse(jsonStr); Poco::DynamicAny result = handler.result(); Poco::Timestamp time2; printTimeDiff(time1, time2); if ( result.type() == typeid(Poco::JSON::Object::Ptr) ) { obj = result.extract<Poco::JSON::Object::Ptr>(); } //Serialize to string std::ostringstream out; Poco::Timestamp time3; obj->stringify(out); Poco::Timestamp time4; printTimeDiff(time3, time4); std::cout << std::endl; } catch(Poco::JSON::JSONException jsone) { std::cout << jsone.message() << std::endl; } return 0; }
int main(int argc, char **argv) { Poco::Stopwatch sw; std::string dir = Poco::Environment::get("POCO_BASE") + "/JSON/samples/Benchmark/"; Poco::Path filePath(dir, "input.big.json"); std::ostringstream ostr; if (filePath.isFile()) { Poco::File inputFile(filePath); if (inputFile.exists()) { sw.start(); Poco::FileInputStream fis(filePath.toString()); Poco::StreamCopier::copyStream(fis, ostr); sw.stop(); } else { std::cout << filePath.toString() << " doesn't exist!" << std::endl; return 1; } } std::cout << "JSON Benchmark" << std::endl; std::cout << "==============" << std::endl; std::string jsonStr = ostr.str(); std::cout << "Total of " << jsonStr.size() << " bytes," << std::endl << "loaded in " << sw.elapsed() << " [us]," << std::endl; std::cout << std::endl << "POCO JSON barebone parse" << std::endl; Poco::JSON::Parser sparser(0); sw.restart(); sparser.parse(jsonStr); sw.stop(); std::cout << "---------------------------------" << std::endl; std::cout << "[std::string] parsed in " << sw.elapsed() << " [us]" << std::endl; std::cout << "---------------------------------" << std::endl; Poco::JSON::Parser iparser(0); std::istringstream istr(jsonStr); sw.restart(); iparser.parse(istr); sw.stop(); std::cout << "----------------------------------------" << std::endl; std::cout << "[std::istringstream] parsed in " << sw.elapsed() << " [us]" << std::endl; std::cout << "----------------------------------------" << std::endl; std::cout << std::endl << "POCO JSON Handle/Stringify" << std::endl; try { Poco::JSON::Parser sparser; sw.restart(); sparser.parse(jsonStr); Poco::DynamicAny result = sparser.result(); sw.stop(); std::cout << "-----------------------------------------" << std::endl; std::cout << "[std::string] parsed/handled in " << sw.elapsed() << " [us]" << std::endl; std::cout << "-----------------------------------------" << std::endl; Poco::JSON::Parser isparser; std::istringstream istr(jsonStr); sw.restart(); isparser.parse(istr); result = isparser.result(); sw.stop(); std::cout << "------------------------------------------------" << std::endl; std::cout << "[std::istringstream] parsed/handled in " << sw.elapsed() << " [us]" << std::endl; std::cout << "------------------------------------------------" << std::endl; // Serialize to string Poco::JSON::Object::Ptr obj; if (result.type() == typeid(Poco::JSON::Object::Ptr)) { obj = result.extract <Poco::JSON::Object::Ptr> (); } std::ostringstream out; sw.restart(); obj->stringify(out); sw.stop(); std::cout << "-----------------------------------" << std::endl; std::cout << "stringified in " << sw.elapsed() << " [us]" << std::endl; std::cout << "-----------------------------------" << std::endl; std::cout << std::endl; } catch(Poco::JSON::JSONException jsone) { std::cout << jsone.message() << std::endl; } return 0; }