Source code for geni.rspec.pgad

# Copyright (c) 2013-2017  Barnstormer Softworks, Ltd.

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

from __future__ import absolute_import

from lxml import etree as ET

from .. import namespaces as GNS
from .pg import Namespaces as PGNS
from . import pg
from . import stitching
from ..model.util import XPathXRange

_XPNS = {'g' : GNS.REQUEST.name, 's' : GNS.SVLAN.name,
         'e' : PGNS.EMULAB.name, 't' : stitching.STITCHNS.name}

[docs]class Image(object): def __init__ (self): self.name = None self.os = None self.version = None self.description = None self.url = None def __repr__ (self): return "<Image: %s, os: '%s', version: '%s', description: '%s', url: '%s'>" % (self.name, self.os, self.version, self.description, self.url) def __hash__ (self): return hash("%s-%s" % (self.name, self.url)) def __eq__ (self, other): return hash(self) == hash(other) def __ne__ (self, other): return not self == other @classmethod def _fromdom (cls, elem): i = Image() i.name = elem.get("name") if i.name is None: i.name = elem.get("url") i.os = elem.get("os") i.version = elem.get("version") i.description = elem.get("description") i.url = elem.get("url") return i
[docs]class Location(object): def __init__ (self): self.latitude = None self.longitude = None def __repr__ (self): return "<Location: %f, %f>" % (self.latitude, self.longitude) @classmethod def _fromdom (cls, elem): l = Location() l.latitude = float(elem.get("latitude")) l.longitude = float(elem.get("longitude")) return l
[docs]class AdInterface(pg.Interface): """Wrapper object for a Node Interface in a GENIv3 Advertisement. Attributes: component_id (str): Component ID URN role (str): The resource role of this interface (typically "control" or "experimental"). `None` if unset. name (str): Friendly name for this interface, `None` if unset. """ def __init__ (self, name): super(AdInterface, self).__init__(name, None) self.component_id = None self.role = None @classmethod def _fromdom (cls, elem): eie = elem.xpath('e:interface', namespaces = _XPNS) name = elem.get("component_id") if len(eie) > 0: name = eie[0].get("name") intf = AdInterface(name) intf.component_id = elem.get("component_id") intf.role = elem.get("role") return intf
[docs]class AdNode(object): """Wrapper object for a Node in a GENIv3 advertisement. .. note:: In general this object is created on-demand through `Advertisement` objects, but you can load this object from a Node XML element by using the `_fromdom` classmethod. Attributes: component_id (str): Component ID URN component_manager_id (str): Component Manager ID URN name (str): Friendly name provided by aggregate for this resource. exclusive (bool): True if a node can be reserved as a raw PC available (bool): Whether this node is currently available for reservations hardware_types (dict): Mapping of `{ type_name : type_slots, ... }` sliver_types (set): Supported sliver type images (dict): Mapping of `{ sliver_type : [supported_image_name, ...], ... }` shared (bool): `True` if currently being used as a shared resource interfaces (list): List of :py:class:`AdInterface` objects for this Node location (:py:class:`AdLocation`): `None` if not available ram (int): Currently available system RAM in megabytes. `None` if not available. cpu (int): Maximum Per-core CPU speed in Mhz. `None` if not available. """ def __init__ (self): self.component_id = None self.component_manager_id = None self.name = None self.exclusive = True self.available = False self.hardware_types = {} self.sliver_types = set() self.images = {} self.shared = False self.interfaces = [] self.location = None self.ram = None self.cpu = None self._elem = None @classmethod def _fromdom (cls, elem): node = AdNode() node._elem = elem node.component_id = elem.get("component_id") node.name = elem.get("component_name") node.component_manager_id = elem.get("component_manager_id") if elem.get("exclusive") == "false": node.exclusive = False avelem = elem.xpath('g:available', namespaces = _XPNS) if avelem and avelem[0].get("now") == "true": node.available = True stypes = elem.xpath('g:sliver_type', namespaces = _XPNS) for stype in stypes: sliver_name = stype.get("name") node.sliver_types.add(sliver_name) node.images[sliver_name] = [] ims = stype.xpath('g:disk_image', namespaces = _XPNS) for im in ims: node.images[sliver_name].append(Image._fromdom(im)) htypes = elem.xpath('g:hardware_type', namespaces = _XPNS) for htype in htypes: nts = htype.xpath('e:node_type', namespaces = _XPNS) if nts: node.hardware_types[htype.get("name")] = nts[0].get("type_slots") fds = elem.xpath('e:fd', namespaces = _XPNS) for fd in fds: name = fd.get("name") if name == 'pcshared': node.shared = True elif name == 'cpu': node.cpu = int(fd.get("weight")) elif name == 'ram': node.ram = int(fd.get("weight")) for intf in elem.xpath('g:interface', namespaces = _XPNS): node.interfaces.append(AdInterface._fromdom(intf)) locelem = elem.xpath('g:location', namespaces = _XPNS) if locelem: node.location = Location._fromdom(locelem[0]) return node @property def text (self): return ET.tostring(self._elem, pretty_print=True)
[docs]class AdSharedVLAN(object): def __init__ (self): self.name = None def __str__ (self): return self.name @classmethod def _fromdom (cls, elem): svlan = AdSharedVLAN() svlan.name = elem.get("name") return svlan
[docs]class RoutableAddresses(object): def __init__ (self): self.available = 0 self.configured = 0 @property def capacity (self): return self.configured