public static Data.Models.Song ToEntity(this Domain.Song domain)
{
return(new Data.Models.Song()
{
Id = domain.Id,
Title = domain.Title,
CategoryId = domain.CategoryId,
OriginalArtist = domain.OriginalArtist
});
}
static void Main(string[] args)
{
var playlist = Init();
#region Exceptions
// try
// {
// Debug.WriteLine("Throwing exception");
// Trace.WriteLine("Tracing...");
// //playlist.Move(2, 99);
// //playlist.Next();
// //throw new Exception();
// }
// catch (IndexOutOfRangeException ex)
// {
// Console.WriteLine(ex.Message);
// Debug.WriteLine(ex.StackTrace);
// Trace.WriteLine("Tracing 2...");
// }
// catch (SomethingWrongException ex)
// {
// Console.WriteLine(ex.Message);
//#if MY_CONDITION
// throw;
//#endif
// }
// catch (Exception ex)
// {
//#if MY_CONDITION
// throw new SomethingWrongException("Woops... Try again later", ex);
//#endif
// }
// finally
// {
// Debug.WriteLine("Finally.");
// Console.WriteLine("Do something regardless of was there exception or not.");
// }
#endregion
#region Modile10
Console.WriteLine("============ Initial playlist");
playlist.AllSongs.ToList().ForEach(Console.WriteLine);
Console.WriteLine("============ Using delegate");
MutatePlaylist(playlist, Shuffle);
playlist.AllSongs.ToList().ForEach(Console.WriteLine);
Console.WriteLine("============ Using anonymous function");
MutatePlaylist(playlist, delegate(Playlist p)
{
int n = p.SongCount;
RNGCryptoServiceProvider provider = new RNGCryptoServiceProvider();
while (n > 1)
{
byte[] box = new byte[1];
do provider.GetBytes(box); while (!(box[0] < n*(Byte.MaxValue/n)));
int k = box[0]%n;
n--;
p.Move(n, k);
}
});
playlist.AllSongs.ToList().ForEach(Console.WriteLine);
Console.WriteLine("============ Using lambda expression");
MutatePlaylist(playlist, p =>
{
int n = p.SongCount;
RNGCryptoServiceProvider provider = new RNGCryptoServiceProvider();
while (n > 1)
{
byte[] box = new byte[1];
do provider.GetBytes(box); while (!(box[0] < n * (Byte.MaxValue / n)));
int k = box[0] % n;
n--;
p.Move(n, k);
}
});
playlist.AllSongs.ToList().ForEach(Console.WriteLine);
Console.WriteLine("============ Using Extension Method");
playlist.Shuffle();
playlist.AllSongs.ToList().ForEach(Console.WriteLine);
var sss = playlist.AllSongs.Select(s => new {s.Album.Artist.Name, s.Title});
var jjj = playlist.AllSongs.Where(s => s.Length > 400);
#endregion
#region LINQ
var songs = Init().AllSongs.ToList();
var where = songs.Where(s => s.Length > 400);
var take = songs.Take(5);
var skip = songs.Skip(songs.Count/3);
var takeWhile = songs.TakeWhile(s => s.Length < 300);
var skipWhile = songs.SkipWhile(s => s.Length < 300);
var distinct = songs.Distinct(new SongEqualityComparer());
var select = songs.Select(s => new {s.Album.Artist.Name, s.Title});
var selectMany = songs.SelectMany(s => s.Album.Genres);
var orderBy = songs.OrderBy(s => s.Length).ThenBy(s => s.Title);
var orderByDesc = songs.OrderByDescending(s => s.Length).ThenByDescending(s => s.Title);
var groupBy = songs.GroupBy(s => s.Album.Artist.Name);
var concat = Enumerable.Concat(takeWhile, skipWhile);
var concat2 = takeWhile.Concat(skipWhile);
//var first = songs.Single(s => s.Length > 300);
var elementAt = songs.ElementAt(5);
var count = songs.Count;
var agv = songs.Average(s => s.Length);
var arr1 = Enumerable.Range(1, 6);
var arr2 = new int[] {4, 5, 6, 7, 8, 9, 10};
var repeat = Enumerable.Repeat(5, 10);
var firstOrDef = arr2.FirstOrDefault(x => x > 100);
var union = arr1.Union(arr2);
var intersect = arr1.Intersect(arr2);
var except = arr1.Except(arr2);
var nightwish = new Artist(name: "Nightwish", activeTo: null, activeFrom: new DateTime(1996, 1, 1), country: "Finland");
var dope = new Artist(name: "Dope", activeTo: new DateTime(2013, 1, 1), activeFrom: new DateTime(1997, 1, 1), country: "US");
var groupTherapyAlbum = new Album("Group Therapy", null, new List<string>() { "Nu metal", "Industrial metal", "Alternative metal" }, null,
"Simon Dope", DateTime.Now, dope, new Label(DateTime.Today, "Sony"));
var onceAlbum = new Album("Once", null, new List<string>() { "Symphonic metal", "Power metal" }, null,
"Tuomas Holopainen", DateTime.Now, nightwish, new Label(DateTime.Today, "Nuclear Blast"));
var song1 = new Song(@"C:\path\to\songs\Nightwish - Nemo", 189, AudioFormat.Flac, "Nemo", onceAlbum);
var song2 = new Song(@"C:\path\to\songs\Dope - Motivation", 300, AudioFormat.Mp3, "Motivation",
groupTherapyAlbum);
var mixed = new List<Object>() {1, 2, 3, nightwish, dope, groupTherapyAlbum, onceAlbum, song1, song2 };
var sgs = mixed.OfType<Song>();
var artists = mixed.OfType<Artist>();
try
{
mixed.Cast<Album>();
}
catch (ArgumentNullException ex)
{
Console.WriteLine("Some of arguments are null");
}
catch (InvalidCastException ex)
{
Console.WriteLine("Can't convert to song");
}
int it = 1;
var dict = songs.ToDictionary(song => it++, song => song.Title);
var lookup = songs.ToLookup(song => song.Album.Name, song => song.Title);
songs.Reverse(0, songs.Count);
//closure
string hello = "Hello";
Action<String> tmp = (username) => Console.WriteLine(hello + ", " + username);
var greet = new Action<string>(tmp);
greet("Alex");
#endregion
var factory = SongFactory.Instance;
var paradiseLost = new List<Song>
{
factory.CreateSong(@"C:\Users\alexandr.racovschi\Downloads\Paradise Lost - Say Just Words.mp3"),
factory.CreateSong(@"C:\Users\alexandr.racovschi\Downloads\Paradise Lost - Unreachable.mp3"),
factory.CreateSong(@"C:\Users\alexandr.racovschi\Downloads\Paradise Lost - The Last Fallen Saviour.mp3")
};
paradiseLost.ForEach(Console.WriteLine);
}
