2 from django.db import models
3 from core.models import PlCoreBase
4 from core.models import Site
5 from core.models.site import SitePrivilege
6 from core.models import User
7 from core.models import Role
8 from core.models import Controller,ControllerLinkManager,ControllerLinkDeletionManager
9 from core.models import ServiceClass
10 from core.models.serviceclass import get_default_serviceclass
11 from core.models import Tag
12 from django.contrib.contenttypes import generic
13 from core.models import Service
14 from core.models import Controller
15 from django.core.exceptions import ValidationError
17 # Create your models here.
19 class Slice(PlCoreBase):
20 name = models.CharField(unique=True, help_text="The Name of the Slice", max_length=80)
21 enabled = models.BooleanField(default=True, help_text="Status for this Slice")
22 omf_friendly = models.BooleanField(default=False)
23 description=models.TextField(blank=True,help_text="High level description of the slice and expected activities", max_length=1024)
24 slice_url = models.URLField(blank=True, max_length=512)
25 site = models.ForeignKey(Site, related_name='slices', help_text="The Site this Slice belongs to")
26 max_slivers = models.IntegerField(default=10)
27 service = models.ForeignKey(Service, related_name='service', null=True, blank=True)
28 network = models.CharField(default="Private Only",null=True, blank=True, max_length=256)
29 tags = generic.GenericRelation(Tag)
30 serviceClass = models.ForeignKey(ServiceClass, related_name = "slices", null=True, default=get_default_serviceclass)
31 creator = models.ForeignKey(User, related_name='slices', blank=True, null=True)
34 image_preference = models.CharField(default="Ubuntu 12.04 LTS", null=True, blank=True, max_length=256)
35 mount_data_sets = models.CharField(default="GenBank",null=True, blank=True, max_length=256)
37 def __unicode__(self): return u'%s' % (self.name)
41 return "%s_%s" % (self.site.login_base, self.name)
43 def save(self, *args, **kwds):
45 site = Site.objects.get(id=self.site.id)
46 # allow preexisting slices to keep their original name for now
47 if not self.id and not self.name.startswith(site.login_base):
48 raise ValidationError('slice name must begin with %s' % site.login_base)
50 if self.serviceClass is None:
51 # We allowed None=True for serviceClass because Django evolution
52 # will fail unless it is allowed. But, we we really don't want it to
53 # ever save None, so fix it up here.
54 self.serviceClass = ServiceClass.get_default()
55 if not self.creator and hasattr(self, 'caller'):
56 self.creator = self.caller
57 super(Slice, self).save(*args, **kwds)
59 def can_update(self, user):
64 # slice admins can update
65 slice_privs = SlicePrivilege.objects.filter(user=user, slice=self)
66 for slice_priv in slice_privs:
67 if slice_priv.role.role == 'admin':
70 site_privs = SitePrivilege.objects.filter(user=user, site=self.site)
71 for site_priv in site_privs:
72 if site_priv.role.role == 'pi':
78 def select_by_user(user):
80 qs = Slice.objects.all()
82 # users can see slices they belong to
83 slice_ids = [sp.slice.id for sp in SlicePrivilege.objects.filter(user=user)]
84 # pis can see slices at their sites
85 sites = [sp.site for sp in SitePrivilege.objects.filter(user=user)\
86 if sp.role.role == 'pi']
87 slice_ids.extend([s.id for s in Slice.objects.filter(site__in=sites)])
88 qs = Slice.objects.filter(id__in=slice_ids)
91 def delete(self, *args, **kwds):
92 # delete networks associated with this slice
93 from core.models.network import Network
94 nets = Network.objects.filter(slices=self)
96 # delete slice controllers
97 slice_controllers = ControllerSlice.objects.filter(slice=self)
98 slice_controllers.delete()
99 # delete slice privilege
100 slice_privileges = SlicePrivilege.objects.filter(slice=self)
101 slice_privileges.delete()
102 # continue with normal delete
103 super(Slice, self).delete(*args, **kwds)
106 class SliceRole(PlCoreBase):
107 ROLE_CHOICES = (('admin','Admin'),('default','Default'))
109 role = models.CharField(choices=ROLE_CHOICES, unique=True, max_length=30)
111 def __unicode__(self): return u'%s' % (self.role)
113 class SlicePrivilege(PlCoreBase):
114 user = models.ForeignKey('User', related_name='sliceprivileges')
115 slice = models.ForeignKey('Slice', related_name='sliceprivileges')
116 role = models.ForeignKey('SliceRole',related_name='sliceprivileges')
118 def __unicode__(self): return u'%s %s %s' % (self.slice, self.user, self.role)
120 def can_update(self, user):
121 return self.slice.can_update(user)
124 def select_by_user(user):
126 qs = SlicePrivilege.objects.all()
128 sp_ids = [sp.id for sp in SlicePrivilege.objects.filter(user=user)]
129 qs = SlicePrivilege.objects.filter(id__in=sp_ids)
132 class ControllerSlice(PlCoreBase):
133 objects = ControllerLinkManager()
134 deleted_objects = ControllerLinkDeletionManager()
136 controller = models.ForeignKey(Controller, related_name='controllerslices')
137 slice = models.ForeignKey(Slice, related_name='controllerslices')
138 tenant_id = models.CharField(null=True, blank=True, max_length=200, help_text="Keystone tenant id")
140 def __unicode__(self): return u'%s %s' % (self.slice, self.controller)
143 def select_by_user(user):
145 qs = ControllerSlice.objects.all()
147 slices = Slice.select_by_user(user)
148 qs = ControllerSlice.objects.filter(slice__in=slices)
151 def get_cpu_stats(self):
152 filter = 'project_id=%s'%self.tenant_id
153 return monitor.get_meter('cpu',filter,None)
155 def get_bw_stats(self):
156 filter = 'project_id=%s'%self.tenant_id
157 return monitor.get_meter('network.outgoing.bytes',filter,None)
159 def get_node_stats(self):
160 return len(self.slice.slivers)