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#from charmhelpers.core.hookenv import log, WARNING
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#def port_config_changed(port, hookenv):
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# '''Cheks if value of port changed close old port and open a new one'''
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# if port in local_state:
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# if local_state[port] != config_data[port]:
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# log('Stored value for {} isn\'t equal'
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# 'to config data'.format(port),
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# log('Closing port {}'.format(str(local_state[port])), WARNING)
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# hookenv.close_port(local_state[port])
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# log('{} port is not closed.'.format(str(local_state[port])),
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# hookenv.open_port(config_data[port])
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# local_state[port] = config_data[port]