Simple command bus

Send it a command and it will search the root path for a command handler that can execute that command.

Commands are typical ruby symbols Command handlers must be classes name after the command and must end with 'CommandHandler'. They must also be in a file named after the command that must end with 'command_handler'

bus = CommandBus.config do |config|
  config.root = 'lib/command_handlers'
end

bus.execute(:create_new_account)

In this example, command_bus will require 'lib/command_handlers/create_new_account_command_handler' and, instantiate the CreateNewAccountCommandHandler and call execute on it.