/**
* Returns the help text for a particular command. For this command to work properly, the command
* should be supported by one of the command handlers enabled in the client and the command
* handler who supports this command should also include a help text for that command.
*
* @see #addCommandHandler(CommandHandler), {@link CommandHandler}
* @param cmd The command for which help needed.
* @return The help text for the specified command, null if the command is not found in any of the
* command handlers.
*/
public String getCommandHelp(String cmd) {
for (CommandHandler handler : cmdHandlers) {
if (handler.supportCommand(cmd)) return handler.getHelp(cmd);
}
return null;
}
