Add benchmark application as sampleBenchmark is the same as describe here: http://lijoblogs.blogspot.be/2011/11/comparison-and-benchmark-of-c-json.html

JSON/samples/BenchmarkApp/src/BenchmarkApp.cpp

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+//
+// BenchmarkApp.cpp
+//
+// $Id$
+//
+// This sample shows a benchmark of the JSON parser.
+//
+// Copyright (c) 2004-2012, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+//
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+#include "Poco/Timestamp.h"
+#include "Poco/JSON/Parser.h"
+#include "Poco/JSON/DefaultHandler.h"
+#include "Poco/JSON/JSONException.h"
+#include "Poco/Environment.h"
+#include "Poco/Path.h"
+#include "Poco/File.h"
+#include "Poco/FileStream.h"
+#include "Poco/StreamCopier.h"
+
+#include <iostream>
+#include <iomanip>
+
+void printTimeDiff(const Poco::Timestamp& start, const Poco::Timestamp& end)
+{
+	Poco::Timestamp::TimeDiff diff = end - start;
+	std::cout << std::setw(25) << std::left << diff;
+}
+
+int main(int argc, char** argv)
+{
+	Poco::JSON::Object::Ptr obj;
+
+	std::string dir = Poco::Environment::get("POCO_BASE") + "/JSON/samples/BenchmarkApp/";
+	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;
+}