1 from core.models import Slice, SlicePrivilege, SliceRole, Sliver, Site, Node, User
2 from plus import PlusObjectMixin
3 from operator import itemgetter, attrgetter
5 class SlicePlus(Slice, PlusObjectMixin):
9 def __init__(self, *args, **kwargs):
10 super(SlicePlus, self).__init__(*args, **kwargs)
11 self._update_site_allocation = None
12 self._update_users = None
14 def getSliceInfo(self, user=None):
18 for sliver in self.slivers.all():
19 site = sliver.node.site_deployment.site
20 deployment = sliver.node.site_deployment.deployment
21 used_sites[site.name] = used_sites.get(site.name, 0) + 1
22 used_deployments[deployment.name] = used_deployments.get(deployment.name, 0) + 1
23 sliverCount = sliverCount + 1
27 roles = [x.role.role for x in self.sliceprivileges.filter(user=user)]
29 return {"sitesUsed": used_sites,
30 "deploymentsUsed": used_deployments,
31 "sliverCount": sliverCount,
32 "siteCount": len(used_sites.keys()),
36 def site_allocation(self):
37 return self.getSliceInfo()["sitesUsed"]
39 @site_allocation.setter
40 def site_allocation(self, value):
41 self._update_site_allocation = value
42 #print "XXX set sitesUsed to", value
47 for priv in SlicePrivilege.objects.filter(slice=self):
48 if not (priv.user.id in user_ids):
49 user_ids.append(priv.user.id)
53 def users(self, value):
54 self._update_users = value
55 #print "XXX set users to", value
58 def network_ports(self):
59 # XXX this assumes there is only one network that can have ports bound
60 # to it for a given slice. This is intended for the tenant view, which
61 # will obey this field.
63 for networkSlice in self.networkslices.all():
64 network = networkSlice.network
66 networkPorts = network.ports
71 def network_ports(self, value):
72 print "XXX set networkPorts to", value
75 def select_by_user(user):
77 qs = SlicePlus.objects.all()
79 slice_ids = [sp.slice.id for sp in SlicePrivilege.objects.filter(user=user)]
80 qs = SlicePlus.objects.filter(id__in=slice_ids)
83 def get_node_allocation(self, siteList):
84 siteIDList = [site.id for site in siteList]
86 for node in Node.objects.all():
87 if (node.site_deployment.site.id in siteIDList):
89 for sliver in node.slivers.all():
90 if sliver.slice.id == self.id:
91 node.sliverCount = node.sliverCount + 1
95 def save(self, *args, **kwargs):
96 super(SlicePlus, self).save(*args, **kwargs)
98 if self._update_site_allocation:
99 self.save_site_allocation(noAct=True)
101 if self._update_users:
102 self.save_users(noAct=True)
104 if self._update_site_allocation:
105 self.save_site_allocation()
107 if self._update_users:
110 def save_site_allocation(self, noAct = False):
111 new_site_allocation = self._update_site_allocation
113 all_slice_slivers = self.slivers.all()
114 for site_name in new_site_allocation.keys():
115 desired_allocation = new_site_allocation[site_name]
117 # make a list of the slivers for this site
119 for sliver in all_slice_slivers:
120 if sliver.node.site_deployment.site.name == site_name:
121 slivers.append(sliver)
123 # delete extra slivers
124 while (len(slivers) > desired_allocation):
125 sliver = slivers.pop()
126 print "deleting sliver", sliver
131 if (len(slivers) < desired_allocation):
132 site = Site.objects.get(name = site_name)
133 nodes = self.get_node_allocation([site])
136 raise ValueError("no nodes in site %s" % site_name)
138 while (len(slivers) < desired_allocation):
139 # pick the least allocated node
140 nodes = sorted(nodes, key=attrgetter("sliverCount"))
143 sliver = Sliver(name=node.name,
146 image = self.default_image,
147 flavor = self.default_flavor,
148 creator = self.creator,
149 deployment = node.site_deployment.deployment)
150 slivers.append(sliver)
154 print "added sliver", sliver
156 node.sliverCount = node.sliverCount + 1
158 def save_users(self, noAct = False):
159 new_users = self._update_users
161 default_role = SliceRole.objects.get(role="default")
163 slice_privs = self.sliceprivileges.all()
164 slice_user_ids = [priv.user.id for priv in slice_privs]
166 for user_id in new_users:
167 if (user_id not in slice_user_ids):
169 priv = SlicePrivilege(slice=self, user=User.objects.get(id=user_id), role=default_role)
173 print "added user id", user_id
175 for priv in slice_privs:
176 if (priv.role.id != default_role.id):
177 # only mess with 'default' users; don't kill an admin
180 if (priv.user.id not in new_users):
184 print "deleted user id", user_id