class CommandHandler(object):
"""Dispatch the commandline instructions to the right component."""
def __init__(self, options):
self.options = options
self.config = Configurator(options)
def run(self):
"""Execute the specified command parameterized by CLI options"""
getattr(self, 'run_' + self.options.command)()
def interrupt(self):
"""Perform clean up operations on user interuptions (if any)"""
handler = getattr(self, 'interrupt_' + self.options.command, None)
if handler is not None:
return handler()
def run_init(self):
self.config.init_cluster(self.options.name)
def run_select(self):
self.config.set_default_cluster(self.options.name)
def run_start(self):
provisioner = Provisioner(self.config)
provisioner.start(self.options.profile,
n_nodes=self.options.n_nodes,
name_prefix=self.options.name_prefix)
def __init__(self, options):
self.options = options
self.config = Configurator(options)
