Add first samples

MongoDB/samples/SQLToMongo/src/main.cpp

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+//
+// main.cpp
+//
+// $Id$
+//
+// This sample shows SQL to mongo Shell to C++ examples.
+//
+// Copyright (c) 2013, 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/MongoDB/MongoDB.h"
+#include "Poco/MongoDB/Connection.h"
+#include "Poco/MongoDB/Database.h"
+#include "Poco/MongoDB/Cursor.h"
+
+// INSERT INTO USERS
+// VALUES( "Braem", 33)
+void sample1(Poco::MongoDB::Connection& connection)
+{
+	std::cout << "*** SAMPLE 1 ***" << std::endl;
+
+	Poco::MongoDB::Database db("mydb");
+
+	Poco::SharedPtr<Poco::MongoDB::InsertRequest> insertUserRequest = db.createInsertRequest("users");
+	Poco::MongoDB::Document::Ptr user = new Poco::MongoDB::Document();
+	user->add("lastname", std::string("Braem"));
+	user->add("age", 33);
+	insertUserRequest->documents().push_back(user);
+	connection.sendRequest(*insertUserRequest);
+	std::string lastError = db.getLastError(connection);
+	if ( !lastError.empty() )
+	{
+		std::cout << "Last Error: " << db.getLastError(connection) << std::endl;
+	}
+}
+
+// SELECT lastname, age FROM users
+void sample2(Poco::MongoDB::Connection& connection)
+{
+	std::cout << "*** SAMPLE 2 ***" << std::endl;
+
+	Poco::MongoDB::Cursor cursor("mydb", "users");
+	// Selecting fields is done by adding them to the returnFieldSelector
+	// Use 1 as value of the element.
+	cursor.query().returnFieldSelector().add("lastname", 1);
+	cursor.query().returnFieldSelector().add("age", 1);
+	Poco::MongoDB::ResponseMessage& response = cursor.next(connection);
+	while(1)
+	{
+		for(Poco::MongoDB::Document::Vector::const_iterator it = response.documents().begin(); it != response.documents().end(); ++it)
+		{
+			std::cout << "LastName: " << (*it)->get<std::string>("lastname") << " Age: " << (*it)->get<int>("age") << std::endl;
+		}
+
+		// When the cursorID is 0, there are no documents left, so break out ...
+		if ( response.cursorID() == 0 )
+		{
+			break;
+		}
+
+		// Get the next bunch of documents
+		response = cursor.next(connection);
+	}
+}
+
+// SELECT * FROM users
+void sample3(Poco::MongoDB::Connection& connection)
+{
+	std::cout << "*** SAMPLE 3 ***" << std::endl;
+
+	Poco::MongoDB::Cursor cursor("mydb", "users");
+	Poco::MongoDB::ResponseMessage& response = cursor.next(connection);
+	while(1)
+	{
+		for(Poco::MongoDB::Document::Vector::const_iterator it = response.documents().begin(); it != response.documents().end(); ++it)
+		{
+			std::cout << "LastName: " << (*it)->get<std::string>("lastname") << " Age: " << (*it)->get<int>("age") << std::endl;
+		}
+
+		// When the cursorID is 0, there are no documents left, so break out ...
+		if ( response.cursorID() == 0 )
+		{
+			break;
+		}
+
+		// Get the next bunch of documents
+		response = cursor.next(connection);
+	};
+}
+
+int main(int argc, char** argv)
+{
+	Poco::MongoDB::Connection connection("localhost", 27017);
+	sample1(connection);
+	sample2(connection);
+	sample3(connection);
+
+	return 0;
+}