from sfa.util.method import Method
from sfa.util.sfalogging import logger

from sfa.storage.parameter import Parameter


class get_key_from_incoming_ip(Method):
    """
    Generate a new keypair and gid for requesting caller (component/node).     
    This is a myplc-specific API call used by component manager
    @return 1 If successful  
    """

    interfaces = ['registry']

    accepts = []

    returns = Parameter(int, "1 if successful, faults otherwise")

    def call(self):
        if hasattr(self.api.manager, 'get_key_from_incoming_ip'):
            return self.api.manager.get_key_from_incoming_ip(api)
        else:
            logger.warning(
                "get_key_from_incoming_ip not supported by registry manager")
            return 0