1 from core.models import Slice, SlicePrivilege, Sliver, Site, Node
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_site_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()
101 def save_site_allocation(self, noAct = False):
102 new_site_allocation = self._update_site_allocation
104 all_slice_slivers = self.slivers.all() # Sliver.objects.filter(slice=self)
105 for site_name in new_site_allocation.keys():
106 desired_allocation = new_site_allocation[site_name]
108 # make a list of the slivers for this site
110 for sliver in all_slice_slivers:
111 if sliver.node.site_deployment.site.name == site_name:
112 slivers.append(sliver)
114 # delete extra slivers
115 while (len(slivers) > desired_allocation):
116 sliver = slivers.pop()
117 print "deleting sliver", sliver
122 if (len(slivers) < desired_allocation):
123 site = Site.objects.get(name = site_name)
124 nodes = self.get_site_node_allocation([site])
127 print "XXX no nodes in site", site_name
130 while (len(slivers) < desired_allocation):
131 # pick the least allocated node
132 nodes = sorted(nodes, key=attrgetter("sliverCount"))
135 sliver = Sliver(name=node.name,
138 image = self.default_image,
139 flavor = self.default_flavor,
140 creator = self.creator,
141 deployment = node.site_deployment.deployment)
142 slivers.append(sliver)
146 print "added sliver", sliver
148 node.sliverCount = node.sliverCount + 1