def _port_belongs_to_vmware(self, context):
        port = context.current
        try:
            if port['binding:vif_type'] == dvs_const.DVS:
                return func(self, context)
            elif port['binding:vif_type'] == 'unbound':
                try:
                    host = port['binding:host_id']
                except KeyError:
                    raise exceptions.HypervisorNotFound

                agent = db.get_agent_by_host(host)
                if not agent:
                    raise exceptions.HypervisorNotFound
            else:
                return False
        except exceptions.ResourceNotFound:
            return False
        return func(self, context)
    def _port_belongs_to_vmware(self, context):
        port = context.current
        try:
            if port['binding:vif_type'] == dvs_const.DVS:
                return func(self, context)
            elif port['binding:vif_type'] == 'unbound':
                try:
                    host = port['binding:host_id']
                except KeyError:
                    raise exceptions.HypervisorNotFound

                agent = db.get_agent_by_host(host)
                if not agent:
                    raise exceptions.HypervisorNotFound
            else:
                return False
        except exceptions.ResourceNotFound:
            return False
        return func(self, context)