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_users = None
12 self._sliceInfo = None
14 self._site_allocation = self._sliceInfo["sitesUsed"]
15 self._initial_site_allocation = self._site_allocation
17 def getSliceInfo(self, user=None):
18 if not self._sliceInfo:
22 for sliver in self.slivers.all():
23 site = sliver.node.site_deployment.site
24 deployment = sliver.node.site_deployment.deployment
25 used_sites[site.name] = used_sites.get(site.name, 0) + 1
26 used_deployments[deployment.name] = used_deployments.get(deployment.name, 0) + 1
27 sliverCount = sliverCount + 1
30 for priv in SlicePrivilege.objects.filter(slice=self):
31 if not (priv.user.id in users.keys()):
32 users[priv.user.id] = {"name": priv.user.email, "id": priv.user.id, "roles": []}
33 users[priv.user.id]["roles"].append(priv.role.role)
35 self._sliceInfo= {"sitesUsed": used_sites,
36 "deploymentsUsed": used_deployments,
37 "sliverCount": sliverCount,
38 "siteCount": len(used_sites.keys()),
43 auser = self._sliceInfo["users"].get(user.id, None)
45 self._sliceInfo["roles"] = auser["roles"]
47 return self._sliceInfo
50 def site_allocation(self):
51 return self._site_allocation
53 @site_allocation.setter
54 def site_allocation(self, value):
55 self._site_allocation = value
59 return [user["name"] for user in self.getSliceInfo()["users"].values()]
62 def user_names(self, value):
67 return [user["id"] for user in self.getSliceInfo()["users"].values()]
70 def users(self, value):
71 self._update_users = value
72 #print "XXX set users to", value
75 def network_ports(self):
76 # XXX this assumes there is only one network that can have ports bound
77 # to it for a given slice. This is intended for the tenant view, which
78 # will obey this field.
80 for networkSlice in self.networkslices.all():
81 network = networkSlice.network
83 networkPorts = network.ports
88 def network_ports(self, value):
89 print "XXX set networkPorts to", value
92 def select_by_user(user):
94 qs = SlicePlus.objects.all()
96 slice_ids = [sp.slice.id for sp in SlicePrivilege.objects.filter(user=user)]
97 qs = SlicePlus.objects.filter(id__in=slice_ids)
100 def get_node_allocation(self, siteList):
101 siteIDList = [site.id for site in siteList]
103 for node in Node.objects.all():
104 if (node.site_deployment.site.id in siteIDList):
106 for sliver in node.slivers.all():
107 if sliver.slice.id == self.id:
108 node.sliverCount = node.sliverCount + 1
109 nodeList.append(node)
112 def save(self, *args, **kwargs):
113 updated_image = self.has_field_changed("default_image")
114 updated_flavor = self.has_field_changed("default_flavor")
116 super(SlicePlus, self).save(*args, **kwargs)
118 updated_sites = (self._site_allocation != self._initial_site_allocation) or updated_image or updated_flavor
120 self.save_site_allocation(noAct=True, reset=(updated_image or updated_flavor))
122 if self._update_users:
123 self.save_users(noAct=True)
126 self.save_site_allocation(reset=(updated_image or updated_flavor))
128 if self._update_users:
131 def save_site_allocation(self, noAct = False, reset=False):
132 print "save_site_allocation, reset=",reset
134 all_slice_slivers = self.slivers.all()
135 for site_name in self._site_allocation.keys():
136 desired_allocation = self._site_allocation[site_name]
138 # make a list of the slivers for this site
140 for sliver in all_slice_slivers:
141 if sliver.node.site_deployment.site.name == site_name:
142 slivers.append(sliver)
144 # delete extra slivers
145 while (reset and len(slivers)>0) or (len(slivers) > desired_allocation):
146 sliver = slivers.pop()
148 print "deleting sliver", sliver
151 print "would delete sliver", sliver
154 if (len(slivers) < desired_allocation):
155 site = Site.objects.get(name = site_name)
156 nodes = self.get_node_allocation([site])
159 raise ValueError("no nodes in site %s" % site_name)
161 while (len(slivers) < desired_allocation):
162 # pick the least allocated node
163 nodes = sorted(nodes, key=attrgetter("sliverCount"))
166 sliver = Sliver(name=node.name,
169 image = self.default_image,
170 flavor = self.default_flavor,
171 creator = self.creator,
172 deployment = node.site_deployment.deployment)
173 slivers.append(sliver)
175 print "added sliver", sliver
178 print "would add sliver", sliver
180 node.sliverCount = node.sliverCount + 1
182 def save_users(self, noAct = False):
183 new_users = self._update_users
185 default_role = SliceRole.objects.get(role="default")
187 slice_privs = self.sliceprivileges.all()
188 slice_user_ids = [priv.user.id for priv in slice_privs]
190 for user_id in new_users:
191 if (user_id not in slice_user_ids):
192 priv = SlicePrivilege(slice=self, user=User.objects.get(id=user_id), role=default_role)
196 print "added user id", user_id
198 for priv in slice_privs:
199 if (priv.role.id != default_role.id):
200 # only mess with 'default' users; don't kill an admin
203 if (priv.user.id not in new_users):
207 print "deleted user id", user_id