public static void showEnumerableDB(this DBFactory <string, DBElement <string, List <string> > > db)
{
db.show <string, DBElement <string, List <string> >, List <string>, string>();
}
static void Main(string[] args)
{
"Testing QueryProcessing Package".title('=');
WriteLine();
DBEngine <int, DBElement <int, ListOfStrings> > db1 = new DBEngine <int, DBElement <int, ListOfStrings> >();
DBElement <int, ListOfStrings> elem1 = new DBElement <int, ListOfStrings>();
elem1.name = "1st Key/Value = Int/ListOfStrings";
elem1.descr = "This is first element of Int/ListOfStrings key value pair.";
elem1.timeStamp = DateTime.Now;
elem1.children.AddRange(new List <int> {
100, 101, 102, 103, 104, 105
});
elem1.payload = new ListOfStrings();
elem1.payload.theWrappedData = new List <string> {
"CSE681", "SMA", "C#.net", "AI"
};
db1.insert(1, elem1);
DBElement <int, ListOfStrings> elem2 = new DBElement <int, ListOfStrings>();
elem2.name = "element int-ListOfString 2";
elem2.descr = "test element int-ListOfString 2";
elem2.timeStamp = DateTime.Now;
elem2.children.AddRange(new List <int> {
10, 22, 23, 24, 25, 26
});
elem2.payload = new ListOfStrings();
elem2.payload.theWrappedData = new List <string> {
"CSE6812", "SMA2", "C#.net2", "AI2"
};
db1.insert(2, elem2);
WriteLine(" Query : value of key = 2");
QueryProcessEngine <int, ListOfStrings> queryEngine = new QueryProcessEngine <int, ListOfStrings>(db1);
DBElement <int, ListOfStrings> result;
queryEngine.processValueQuery(14, out result);
result.showElement();
WriteLine(" Query : Children of key = 1");
List <int> childrens;
queryEngine.processChildrenQuery(1, out childrens);
foreach (var item in childrens)
{
WriteLine(item);
}
WriteLine();
"The set of all keys matching a specified pattern which defaults to all keys.".title('-');
Dictionary <int, DBElement <int, ListOfStrings> > results;
queryEngine.processPatternMatchInKeysQuery(queryEngine.defineQueryKeyPatternSearch("1"), out results);
DBFactory <int, DBElement <int, ListOfStrings> > dbFactory = new DBFactory <int, DBElement <int, ListOfStrings> >(results);
dbFactory.showDBFactory();
WriteLine();
"All keys that contain a specified string in their metadata section.".title('-');
results.Clear();
queryEngine.processPatternMatchInMetaDataQuery(queryEngine.defineQueryValuePatternSearch("Scheduler"), out results);
dbFactory = new DBFactory <int, DBElement <int, ListOfStrings> >(results);
dbFactory.showDBFactory();
WriteLine();
"All keys that contain values written within a specified time-date interval".title('-');
DateTime dt1 = new DateTime(1990, 6, 14, 0, 0, 0);
DateTime dt2 = new DateTime(1990, 6, 17, 0, 0, 0);
results.Clear();
queryEngine.processTimeIntervalQuery(queryEngine.defineTimeStampQuery(dt1, dt2), out results);
dbFactory.showDBFactory();
}
public static void showDB(this DBFactory <int, DBElement <int, string> > db)
{
db.show <int, DBElement <int, string>, string>();
}
static void Main(string[] args)
{
"Testing DBFactory Package".title('=');
WriteLine();
"\nCreation of immutable database".title();
WriteLine();
"\nOriginal database".title();
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
DBElement <int, string> elem1 = new DBElement <int, string>();
elem1.name = "India";
elem1.descr = "Country";
elem1.timeStamp = DateTime.Now;
elem1.children.AddRange(new List <int> {
2, 3
});
elem1.payload = "Famous cricket player";
db.insert(1, elem1);
DBElement <int, string> elem2 = new DBElement <int, string>();
elem2.name = "Roger federer";
elem2.descr = "Tennis player";
elem2.timeStamp = DateTime.Now.AddDays(-15);
elem2.children.AddRange(new List <int> {
3
});
elem2.payload = "Famous tennis player";
db.insert(2, elem2);
DBElement <int, string> elem3 = new DBElement <int, string>();
elem3.name = "Usain Bolt";
elem3.descr = "Athelte";
elem3.timeStamp = DateTime.Now;
elem3.children.AddRange(new List <int> {
1
});
elem3.payload = "Fastest in the world";
db.insert(3, elem3);
DBElement <int, string> elem4 = new DBElement <int, string>();
elem4.name = "Saina Nehwal";
elem4.descr = "Badminton Player";
elem4.timeStamp = DateTime.Now;
elem4.children.AddRange(new List <int> {
2
});
elem4.payload = "Famous badminton player";
db.insert(4, elem4);
db.showDB();
WriteLine();
"\n Fetch all the keys which are even from the above database".title();
try
{
QueryEngine <int, DBElement <int, string> > qEngine = new QueryEngine <int, DBElement <int, string> >(db);
Dictionary <int, DBElement <int, string> > dictFactory = new Dictionary <int, DBElement <int, string> >();
DBFactory <int, DBElement <int, string> > dbFactory;
var keys = qEngine.getListKeyPattern();
if (keys != null)
{
foreach (var key in keys)
{
var val = db.getValueOfKey(key);
dictFactory.Add(key, val); //add keys and values to the dictionary
}
dbFactory = new DBFactory <int, DBElement <int, string> >(dictFactory); //store the dictionary in the
WriteLine("\nThe below key/value pairs with even keys pattern are saved as an immutable database\n");
dbFactory.showDB(); //display the immutable database
WriteLine();
WriteLine();
}
else
{
WriteLine("\nNo keys are obtained from a query for creation of immutable database\n");
}
WriteLine();
WriteLine();
}
catch (Exception e)
{
Console.WriteLine("\n" + e.Message + "\n");
}
}