public void Unregister(Command command)
{
if (command == null)
throw new ArgumentNullException("command");
Unregister(command.GetType());
}
public void Register(Command command)
{
if (Application.IsRunning)
throw new InvalidOperationException("The application is running.");
if (command == null)
throw new ArgumentNullException("command");
try {
command.Init();
} catch(Exception e) {
throw new ArgumentException("An error occurred while initializing the command: " + e.Message);
}
if (command is IInterruptable)
Application.Interruption.Push(command as IInterruptable);
if (command.Application != null &&
command.Application != application)
throw new ArgumentException("The command instance is already registered by another application.");
command.SetApplicationContext(application);
CommandInfo commandInfo = new CommandInfo(command.GetType(), command);
commands.Add(commandInfo);
string name = commandInfo.Command.Name;
commandMap.Add(name, commandInfo.Command);
if (commandInfo.Command.HasAliases) {
string[] cmdAliases = commandInfo.Command.Aliases;
for (int i = 0; i < cmdAliases.Length; ++i) {
if (commandMap.ContainsKey(cmdAliases[i]))
throw new ArgumentException("attempt to register command '" + cmdAliases[i] + "', that is already used");
commandMap.Add(cmdAliases[i], commandInfo.Command);
}
}
}