/// <summary>
/// A method used to search through the database in order to find
/// an air conditioner by manufacturer and model
/// </summary>
/// <param name="manufacturer">The manufacturer you would be searching for</param>
/// <param name="model"> The model that you would be searching for</param>
/// <returns>returns a string with the specifications of the found device</returns>
public string FindAirConditioner(string manufacturer, string model)
{
IAirConditioner airConditioner = database.GetAirConditioner(manufacturer, model);
if (airConditioner == null)
{
throw new NonExistantEntryException();
}
return(airConditioner.ToString());
}
public void FindAirConditioner(string manufacturer, string model)
{
try
{
IAirConditioner airConditioner = data.GetAirConditioner(manufacturer, model);
writer.WriteLine(airConditioner.ToString());
}
catch (NullReferenceException)
{
writer.WriteLine("The specified entry does not exist.");
}
}
/// <summary>
/// A method that finds an Air Conditioner in the database from a given manufacturer and model.
/// </summary>
/// <param name="manufacturer">The Manufacturer of the searched air conditioner.</param>
/// <param name="model">The model of the searched air conditioner.</param>
/// <returns>If the air conditioner exists in the database returns it's string represention, othrerwise it throws an appropriate exception.</returns>
public string FindAirConditioner(string manufacturer, string model)
{
IAirConditioner airConditioner = this.Database.AirConditioners.GetItem(manufacturer, model);
return(airConditioner.ToString());
}