public static void Initialize()
{
//instantiate repository
SqlServerFacade facade = new SqlServerFacade();
//Check if repository is available
if (!facade.CheckIfDatabaseExists())
{
facade.CreateDatabaseObjects();
}
}
public static void Run()
{
#region Adapter
Console.WriteLine("-----------Adapter pattern-------------");
var simpleLogEntry = new SimpleLogEntry
{
Message = "simpleLogEntry",
Severity = 2,
Date = DateTime.Now
};
var exceptionalLogEntry = new ExceptionLogEntry()
{
Message = "exceptional log entry",
Severity = 5,
Date = DateTime.Now,
Exception = new Exception("Some exception message")
};
ILogSaver sqlLogSaver = new SqlServerLogSaverAdapter();
sqlLogSaver.Save(simpleLogEntry);
sqlLogSaver.Save(exceptionalLogEntry);
ILogSaver elasticLogSaver = new ElasticSearchLogSaverAdapter();
elasticLogSaver.Save(simpleLogEntry);
elasticLogSaver.Save(exceptionalLogEntry);
Console.WriteLine(Environment.NewLine);
Console.WriteLine(Environment.NewLine);
#endregion
#region Facade
Console.WriteLine("-----------Facade pattern-------------");
var facade = new SqlServerFacade();
facade.ExecuteNonQuery("select * from all");
Console.WriteLine(Environment.NewLine);
Console.WriteLine(Environment.NewLine);
#endregion
#region Decorator
Console.WriteLine("-----------Decorator pattern -------------");
Console.WriteLine("-----------Throttling -------------");
var logSaver = new ThrottlingLogSaverDecorator(new ElasticLogSaver());
logSaver.SaveLogEntry("1242", simpleLogEntry);
Console.WriteLine(Environment.NewLine);
Console.WriteLine("-----------Trace -------------");
var traceLogSaver = new TraceServerDecorator(new ElasticLogSaver());
traceLogSaver.SaveLogEntry("12432", simpleLogEntry);
Console.WriteLine(Environment.NewLine);
Console.WriteLine("-----------Factory -------------");
var factLogSaver = LogSaverFactory.CrateLogSaver();
factLogSaver.SaveLogEntry("12432", simpleLogEntry);
Console.WriteLine(Environment.NewLine);
Console.WriteLine(Environment.NewLine);
Console.WriteLine("-----------Composite Pattern -------------");
// Таким образом, клиентский код может поддерживать простые
// компоненты-листья...
var client = new Client();
Leaf leaf = new Leaf();
Console.WriteLine("Client: I get a simple component:");
client.ClientCode(leaf);
// ...а также сложные контейнеры.
Composite tree = new Composite();
Composite branch1 = new Composite();
branch1.Add(new Leaf());
branch1.Add(new Leaf());
Composite branch2 = new Composite();
branch2.Add(new Leaf());
tree.Add(branch1);
tree.Add(branch2);
Console.WriteLine("Client: Now I've got a composite tree:");
client.ClientCode(tree);
Console.Write("Client: I don't need to check the components classes even when managing the tree:\n");
client.ClientCode2(tree, leaf);
Console.WriteLine(Environment.NewLine);
Console.WriteLine(Environment.NewLine);
#endregion
}