/// <summary>
/// Creates a new room, based on provided parameters.
/// Throws exception if values are invalid.
/// </summary>
/// <param name="owner">IUser object - Owner of the newly created room.</param>
/// <param name="roomName">Requested room name.</param>
/// <param name="services">List of streamingplatforms provided initially</param>
/// <returns>Newly created room</returns>
public IRoom CreateRoom(IUser owner, string roomName, List <IStreamingPlatform> services)
{
// Null checks
if (owner == null)
{
throw new ArgumentNullException("owner", "Owner must not be null.");
}
if (services == null)
{
throw new ArgumentNullException("services", "Services must not be null.");
}
// Value checks
if (string.IsNullOrEmpty(roomName) || string.IsNullOrWhiteSpace(roomName))
{
throw new ArgumentException("roomName", "RoomName must contain a value.");
}
if (owner.Id == 0)
{
throw new ArgumentException("Owner does not contain a valid Id.", "owner");
}
if (services.Count < 1)
{
throw new ArgumentException("Services must contain at least 1 streaming platform.", "services");
}
if (roomName.Length < 4)
{
throw new ArgumentException("roomName", "RoomName must be atleast 4 characters long.");
}
// Fields and values
IRoom roomToBeCreated;
string roomKey;
// Create room key.
IKeyGenerator keyGenerator = KeyGeneratorFactory.GetKeyGenerator();
bool keyIsUnique = false;
// Check that key is unique
// Retry if the key is not unique
do
{
// Generate key
roomKey = keyGenerator.GenerateKey();
// Check if the generated key exists.
keyIsUnique = this._roomDAO.ValidateRoomKey(roomKey);
} while (keyIsUnique);
// Create room object.
roomToBeCreated = new Room(roomName, owner, roomKey, services);
// Generate room object on DAO
roomToBeCreated = this._roomDAO.Create(roomToBeCreated);
// Return created room
return(roomToBeCreated);
}
/// <summary>
/// Builds name for key generator.
/// </summary>
/// <param name="key">Key to build key generator name for.</param>
/// <param name="hierarchyDef">Hierarchy definition.</param>
/// <returns>Key generator name</returns>
public string BuildKeyGeneratorName(KeyInfo key, HierarchyDef hierarchyDef)
{
var mappingDatabase = hierarchyDef.Root.MappingDatabase;
var databaseSuffixRequired =
key.GeneratorKind == KeyGeneratorKind.Default &&
KeyGeneratorFactory.IsSequenceBacked(key.SingleColumnType) &&
!string.IsNullOrEmpty(mappingDatabase);
var baseName = key.GeneratorBaseName;
return(databaseSuffixRequired
? FormatKeyGeneratorName(mappingDatabase, baseName)
: baseName);
}
