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

from sfa.storage.parameter import Parameter, Mixed


class Status(Method):
    """
    Get the status of a sliver

    @param slice_urn (string) URN of slice to allocate to

    """
    interfaces = ['aggregate']
    accepts = [
        Parameter(type([str]), "Slice or sliver URNs"),
        Parameter(type([dict]), "credentials"),
        Parameter(dict, "Options")
    ]
    returns = Parameter(dict, "Status details")

    def call(self, xrns, creds, options):
        valid_creds = self.api.auth.checkCredentialsSpeaksFor(
            creds, 'sliverstatus', xrns,
            check_sliver_callback=self.api.driver.check_sliver_credentials,
            options=options)

        logger.info("interface: %s\ttarget-hrn: %s\tmethod-name: %s" %
                    (self.api.interface, xrns, self.name))
        return self.api.manager.Status(self.api, xrns, creds, options)