static void Advanced_3_MixedPolymorphism()
{
ConsoleTitle("SECTION: Mixed Polymorphism");
Console.WriteLine("\n Preparing all the base data:");
// create sample object
PlayerAdvanced player1 = new PlayerAdvanced("Binky", 20, new Weapon("sword", 5), new Armor("robe", 1));
// create sample object -- simple parent generic assigned with derived object
Player player2 = new PlayerAdvanced("Frosty", 20, new Weapon("bow", 3), new Armor("leather", 3));
player1.SetTarget(player2);
Player player3 = new Player("Jacques", 20);
PlayerAdvanced player4 = new PlayerAdvanced("Cherry", 20);
player4.SetTarget(player3);
((PlayerAdvanced)player2).SetTarget(player1);
List <Player> players = new List <Player> {
player1, player2, player3, player4
};
JsonSerializerSettings settings1 = new JsonSerializerSettings
{
ContractResolver = new PrivateSetResolver(),
PreserveReferencesHandling = PreserveReferencesHandling.Objects,
TypeNameHandling = TypeNameHandling.Auto,
ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor
};
Console.WriteLine("\n Serializing with 'TypeNameHandling = TypeNameHandling.Auto':");
string json1 = JsonConvert.SerializeObject(players, Formatting.Indented, settings1);
List <object> PlayerList1 = (List <object>)JsonConvert.DeserializeObject <List <object> >(json1, settings1);
JsonSerializerSettings settings2 = new JsonSerializerSettings
{
ContractResolver = new PrivateSetResolver(),
PreserveReferencesHandling = PreserveReferencesHandling.Objects,
TypeNameHandling = TypeNameHandling.Objects,
ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor
};
Console.WriteLine("\n Serializing with 'TypeNameHandling = TypeNameHandling.Objects', desrializing to generic objects:");
string json2 = JsonConvert.SerializeObject(players, Formatting.Indented, settings2);
List <object> PlayerList2 = (List <object>)JsonConvert.DeserializeObject <List <object> >(json2, settings2);
Console.WriteLine("\n Serializing with 'TypeNameHandling = TypeNameHandling.Objects', deserializing to parent object types:");
List <Player> PlayerList3 = (List <Player>)JsonConvert.DeserializeObject <List <Player> >(json2, settings2);
Console.WriteLine("\n JSON Datasets:");
DrawJson(json1);
DrawJson(json2);
Player player5 = (PlayerAdvanced)PlayerList1[0];
Player player6 = (PlayerAdvanced)PlayerList1[1];
Player player7 = null;
try {
player7 = (Player)PlayerList1[2];
} catch (InvalidCastException) {
Console.WriteLine("Cannot cast from Json.Linq.JObject to whatevs because it didn't put a $type in its JSON for this item!");
}
Player player8 = (PlayerAdvanced)PlayerList1[3];
Player player9 = (PlayerAdvanced)PlayerList2[0];
Player player10 = (PlayerAdvanced)PlayerList2[1];
Player player11 = (Player)PlayerList2[2];
Player player12 = (PlayerAdvanced)PlayerList2[3];
Player player13 = PlayerList3[0];
Player player14 = PlayerList3[1];
Player player15 = PlayerList3[2];
Player player16 = PlayerList3[3];
Console.WriteLine("\n Source Data:");
players.ForEach(p => Console.WriteLine($" {p.ToString()}"));
Console.WriteLine("\n Expected Results:");
AreTheseEqual(player1, ((PlayerAdvanced)player2).Target);
AreTheseEqual(player2, player1.Target);
AreTheseEqual(player3, player4.Target);
Console.WriteLine(" Data Set 1 (TypeNameHandling = TypeNameHandling.Auto doesn't catch all the things):");
AreTheseEqual(player5, ((PlayerAdvanced)player6).Target);
AreTheseEqual(player6, ((PlayerAdvanced)player5).Target);
AreTheseEqual(player7, ((PlayerAdvanced)player8).Target);
Console.WriteLine(" Data Set 2 (TypeNameHandling = TypeNameHandling.Objects works):");
AreTheseEqual(player9, ((PlayerAdvanced)player10).Target);
AreTheseEqual(player10, ((PlayerAdvanced)player9).Target);
AreTheseEqual(player11, ((PlayerAdvanced)player12).Target);
Console.WriteLine(" Data Set 3 (Deserializing to a class type looks cleanest in code):");
AreTheseEqual(player13, ((PlayerAdvanced)player14).Target);
AreTheseEqual(player14, ((PlayerAdvanced)player13).Target);
AreTheseEqual(player15, ((PlayerAdvanced)player16).Target);
}
static void Advanced_4_MixedDataset()
{
ConsoleTitle("SECTION: Mixed Dataset (Database)");
Console.WriteLine("\n Preparing all the base data...");
// create sample object
PlayerAdvanced player1 = new PlayerAdvanced("Binky", 20, new Weapon("sword", 5), new Armor("robe", 1));
// create sample object -- simple parent generic assigned with derived object
Player player2 = new PlayerAdvanced("Frosty", 20, new Weapon("bow", 3), new Armor("leather", 3));
player1.SetTarget(player2);
((PlayerAdvanced)player2).SetTarget(player1);
Player player3 = new Player("Jacques", 20);
PlayerAdvanced player4 = new PlayerAdvanced("Cherry", 20);
player4.SetTarget(player3);
Location locale1 = new Location("The River", "A wide, wet river.");
locale1.AddPlayer(player1);
locale1.AddPlayer(player3);
Location locale2 = new Location("The Woods", "A woody place.");
locale2.AddPlayer(player2);
locale2.AddPlayer(player4);
locale1.AddConnection(locale2);
locale2.AddConnection(locale1);
DataSet myData1 = new DataSet();
myData1.Locations.Add(locale1);
myData1.Locations.Add(locale2);
myData1.Players.Add(player1);
myData1.Players.Add(player2);
myData1.Players.Add(player3);
myData1.Players.Add(player4);
JsonSerializerSettings settings = new JsonSerializerSettings
{
ContractResolver = new PrivateSetResolver(),
PreserveReferencesHandling = PreserveReferencesHandling.Objects,
TypeNameHandling = TypeNameHandling.Objects,
ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor
};
string json = JsonConvert.SerializeObject(myData1, Formatting.Indented, settings);
DataSet myData2 = JsonConvert.DeserializeObject <DataSet>(json, settings);
DrawJson(json);
Console.WriteLine("\n DataSet Contents:");
Console.Write(myData1.DumpInfo());
//Console.Write(myData2.DumpInfo());
Console.WriteLine("\n Expected Results:");
AreTheseEqual(myData1.Players[0], ((PlayerAdvanced)myData1.Players[1]).Target);
AreTheseEqual(myData1.Players[1], ((PlayerAdvanced)myData1.Players[0]).Target);
AreTheseEqual(myData1.Players[2], ((PlayerAdvanced)myData1.Players[3]).Target);
AreTheseEqual(myData1.Locations[0], myData1.Locations[1].Connections[0]);
AreTheseEqual(myData1.Locations[1], myData1.Locations[0].Connections[0]);
AreTheseEqual(myData1.Players[0], myData1.Locations[0].Players[0]);
AreTheseEqual(myData1.Locations[0].Players[1], ((PlayerAdvanced)myData1.Locations[1].Players[1]).Target);
Console.WriteLine(" Deserialization Results:");
AreTheseEqual(myData2.Players[0], ((PlayerAdvanced)myData2.Players[1]).Target);
AreTheseEqual(myData2.Players[1], ((PlayerAdvanced)myData2.Players[0]).Target);
AreTheseEqual(myData2.Players[2], ((PlayerAdvanced)myData2.Players[3]).Target);
AreTheseEqual(myData2.Locations[0], myData2.Locations[1].Connections[0]);
AreTheseEqual(myData2.Locations[1], myData2.Locations[0].Connections[0]);
AreTheseEqual(myData2.Players[0], myData2.Locations[0].Players[0]);
AreTheseEqual(myData2.Locations[0].Players[1], ((PlayerAdvanced)myData2.Locations[1].Players[1]).Target);
}
static void Advanced_2_SimplePolymorphism()
{
ConsoleTitle("SECTION: Simple Polymorphism");
Console.Write("Preparing all the base data...");
// create sample object
PlayerAdvanced player1 = new PlayerAdvanced("Binky", 20, new Weapon("sword", 5), new Armor("robe", 1));
// create sample object
PlayerAdvanced player2 = new PlayerAdvanced("Frosty", 20, new Weapon("bow", 3), new Armor("leather", 3));
player1.SetTarget(player2);
player2.SetTarget(player1);
List <Player> players = new List <Player> {
player1, player2
};
JsonSerializerSettings settings1 = new JsonSerializerSettings
{
ContractResolver = new PrivateSetResolver(),
PreserveReferencesHandling = PreserveReferencesHandling.Objects
};
string json1 = JsonConvert.SerializeObject(players, Formatting.Indented, settings1);
List <Player> PlayerList2 = (List <Player>)JsonConvert.DeserializeObject <List <Player> >(json1, settings1);
JsonSerializerSettings settings2 = new JsonSerializerSettings
{
ContractResolver = new PrivateSetResolver(),
PreserveReferencesHandling = PreserveReferencesHandling.Objects,
TypeNameHandling = TypeNameHandling.Auto
};
Console.WriteLine("\n Serializing with 'TypeNameHandling = TypeNameHandling.Auto':");
string json2 = JsonConvert.SerializeObject(players, Formatting.Indented, settings2);
List <object> PlayerList3 = (List <object>)JsonConvert.DeserializeObject <List <object> >(json2, settings2);
JsonSerializerSettings settings3 = new JsonSerializerSettings
{
ContractResolver = new PrivateSetResolver(),
PreserveReferencesHandling = PreserveReferencesHandling.Objects,
TypeNameHandling = TypeNameHandling.Auto,
ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor
};
Console.WriteLine("\n Serializing with 'TypeNameHandling = TypeNameHandling.Auto':");
string json3 = JsonConvert.SerializeObject(players, Formatting.Indented, settings3);
List <object> PlayerList4 = (List <object>)JsonConvert.DeserializeObject <List <object> >(json2, settings3);
Console.WriteLine("\n JSON Datasets:");
DrawJson(json1);
DrawJson(json2);
DrawJson(json3);
// set 1
Console.WriteLine("\n Trying to turn original serialized objects into derived classes from base clase list type:");
try {
PlayerAdvanced player3 = (PlayerAdvanced)PlayerList2[0]; // error here
PlayerAdvanced player4 = (PlayerAdvanced)PlayerList2[1];
} catch (InvalidCastException) {
Console.WriteLine(" Failed to cast from PlayerAdvanced:Player serial data into Player list.");
}
// set 2
PlayerAdvanced player5 = (PlayerAdvanced)PlayerList3[0];
PlayerAdvanced player6 = (PlayerAdvanced)PlayerList3[1];
// set 3
PlayerAdvanced player7 = (PlayerAdvanced)PlayerList4[0];
PlayerAdvanced player8 = (PlayerAdvanced)PlayerList4[1];
Console.WriteLine("\n Source Data:");
players.ForEach(p => Console.WriteLine($" {p.ToString()}"));
Console.WriteLine("\n Expected Results:");
AreTheseEqual(player1, player2.Target);
AreTheseEqual(player2, player1.Target);
Console.WriteLine(" Data Set 2:");
Console.WriteLine(" (failed to deserialize)");
Console.WriteLine(" Data Set 3 (as with earlier examples, this requires default constructor, circular references fail without attribute):");
AreTheseEqual(player5, player6.Target);
AreTheseEqual(player6, player5.Target);
Console.WriteLine(" Data Set 4 (same thing, doesn't require attribute on default constructor):");
AreTheseEqual(player7, player8.Target);
AreTheseEqual(player8, player7.Target);
}