clean PGW code from BBU admin.py and models.py

Change-Id: I79b38fe6e2b7e2b6d4d3c2b7c28c900d5a714639
diff --git a/xos/admin.py b/xos/admin.py
index 564a156..b66a3d5 100644
--- a/xos/admin.py
+++ b/xos/admin.py
@@ -115,54 +115,6 @@
         model = VBBUComponent
         fields = '__all__'
 
-# Class to represent the form to add and edit tenants.
-# We need to define this instead of just using an admin like we did for the
-# service because tenants vary more than services and there isn't a common form.
-# This allows us to change the python behavior for the admin form to save extra
-# fields and control defaults.
-class VPGWCComponentForm(forms.ModelForm):
-    # Defines a field for the creator of this service. It is a dropdown which
-    # is populated with all of the users.
-    creator = forms.ModelChoiceField(queryset=User.objects.all())
-    # Defines a text field for the display message, it is not required.
-    display_message = forms.CharField(required=False)
-
-    def __init__(self, *args, **kwargs):
-        super(VPGWCComponentForm, self).__init__(*args, **kwargs)
-        # Set the kind field to readonly
-        self.fields['kind'].widget.attrs['readonly'] = True
-        # Define the logic for obtaining the objects for the provider_service
-        # dropdown of the tenant form.
-        self.fields[
-            'provider_service'].queryset = MCORDService.get_service_objects().all()
-        # Set the initial kind to HELLO_WORLD_KIND for this tenant.
-        self.fields['kind'].initial = MCORD_KIND
-        # If there is an instance of this model then we can set the initial
-        # form values to the existing values.
-        if self.instance:
-            self.fields['creator'].initial = self.instance.creator
-            self.fields[
-                'display_message'].initial = self.instance.display_message
-
-        # If there is not an instance then we need to set initial values.
-        if (not self.instance) or (not self.instance.pk):
-            self.fields['creator'].initial = get_request().user
-            if MCORDService.get_service_objects().exists():
-                self.fields["provider_service"].initial = MCORDService.get_service_objects().all()[0]
-
-    # This function describes what happens when the save button is pressed on
-    # the tenant form. In this case we set the values for the instance that were
-    # entered.
-    def save(self, commit=True):
-        self.instance.creator = self.cleaned_data.get("creator")
-        self.instance.display_message = self.cleaned_data.get(
-            "display_message")
-        return super(VPGWCComponentForm, self).save(commit=commit)
-
-    class Meta:
-        model = VPGWCComponent
-        fields = '__all__'
-
 
 # Define the admin form for the tenant. This uses a similar structure as the
 # service but uses HelloWorldTenantCompleteForm to change the python behavior.
@@ -186,27 +138,6 @@
         return VBBUComponent.get_tenant_objects_by_user(request.user)
 
 
-# Define the admin form for the tenant. This uses a similar structure as the
-# service but uses HelloWorldTenantCompleteForm to change the python behavior.
-class VPGWCComponentAdmin(ReadOnlyAwareAdmin):
-    verbose_name = "vPGWC Component"
-    verbose_name_plural = "vPGWC Components"
-    list_display = ('id', 'backend_status_icon', 'instance', 'display_message')
-    list_display_links = ('backend_status_icon', 'instance', 'display_message',
-                          'id')
-    fieldsets = [(None, {'fields': ['backend_status_text', 'kind',
-                                    'provider_service', 'instance', 'creator',
-                                    'display_message'],
-                         'classes': ['suit-tab suit-tab-general']})]
-    readonly_fields = ('backend_status_text', 'instance',)
-    form = VPGWCComponentForm
-
-    suit_form_tabs = (('general', 'Details'),)
-
-    def queryset(self, request):
-        return VPGWCComponent.get_tenant_objects_by_user(request.user)
-
 # Associate the admin forms with the models.
 admin.site.register(MCORDService, MCORDServiceAdmin)
 admin.site.register(VBBUComponent, VBBUComponentAdmin)
-admin.site.register(VPGWCComponent, VPGWCComponentAdmin)
diff --git a/xos/models.py b/xos/models.py
index 81a519d..a3f6a7f 100644
--- a/xos/models.py
+++ b/xos/models.py
@@ -273,192 +273,6 @@
         return self.addresses.get("rru", (None, None))[1]
 
 
-# This is the class to represent the tenant. Most of the logic is given to use
-# in TenantWithContainer, however there is some configuration and logic that
-# we need to define for this example.
-class VPGWCComponent(TenantWithContainer):
-
-    class Meta:
-        # Same as a above, HelloWorldTenantComplete is represented as a
-        # TenantWithContainer, but we change the python behavior.
-        proxy = True
-        verbose_name = "VPGWC MCORD Service Component"
-
-    # The kind of the service is used on forms to differentiate this service
-    # from the other services.
-    KIND = VPGWC_KIND
-
-    # Ansible requires that the sync_attributes field contain nat_ip and nat_mac
-    # these will be used to determine where to SSH to for ansible.
-    # Getters must be defined for every attribute specified here.
-    sync_attributes = ("s5s8_pgw_ip", "s5s8_pgw_mac")
-
-    # default_attributes is used cleanly indicate what the default values for
-    # the fields are.
-    default_attributes = {"display_message": "New vPGWC Component", "s5s8_pgw_tag": "300"}
-    def __init__(self, *args, **kwargs):
-        mcord_services = MCORDService.get_service_objects().all()
-        # When the tenant is created the default service in the form is set
-        # to be the first created HelloWorldServiceComplete
-        if mcord_services:
-            self._meta.get_field(
-                "provider_service").default = mcord_services[0].id
-        super(VPGWCComponent, self).__init__(*args, **kwargs)
-
-    def can_update(self, user):
-        #Allow creation of this model instances for non-admin users also
-        return True
-
-    def save(self, *args, **kwargs):
-        if not self.creator:
-            if not getattr(self, "caller", None):
-                # caller must be set when creating a monitoring channel since it creates a slice
-                raise XOSProgrammingError("ServiceComponents's self.caller was not set")
-            self.creator = self.caller
-            if not self.creator:
-                raise XOSProgrammingError("ServiceComponents's self.creator was not set")
-
-        super(VPGWCComponent, self).save(*args, **kwargs)
-        # This call needs to happen so that an instance is created for this
-        # tenant is created in the slice. One instance is created per tenant.
-        model_policy_mcord_servicecomponent(self.pk)
-
-    def save_instance(self, instance):
-        with transaction.atomic():
-            super(VPGWCComponent, self).save_instance(instance)
-            if instance.isolation in ["vm"]:
-                for ntype in vpgwc_net_types:
-                    lan_network = self.get_lan_network(instance, ntype)
-                    port = self.find_or_make_port(instance,lan_network)
-                    if (ntype == "s5s8"):
-                        port.set_parameter("s_tag", self.s5s8_pgw_tag)
-                        port.set_parameter("neutron_port_name", "stag-%s" % self.s5s8_pgw_tag)
-                        port.save()
-                    else:
-			return True
-
-    def delete(self, *args, **kwargs):
-        # Delete the instance that was created for this tenant
-        self.cleanup_container()
-        super(VPGWCComponent, self).delete(*args, **kwargs)
-
-    def find_or_make_port(self, instance, network, **kwargs):
-        port = Port.objects.filter(instance=instance, network=network)
-        if port:
-            port = port[0]
-            print "port already exist", port[0]
-        else:
-            port = Port(instance=instance, network=network, **kwargs)
-            print "NETWORK", network, "MAKE_PORT", port 
-            port.save()
-        return port
-
-    def get_lan_network(self, instance, ntype):
-        slice = self.provider_service.slices.all()[0]
-        lan_networks = [x for x in slice.networks.all() if ntype in x.name]
-        if not lan_networks:
-            raise XOSProgrammingError("No lan_network")
-        return lan_networks[0]
-
-    def manage_container(self):
-        from core.models import Instance, Flavor
-
-        if self.deleted:
-            return
-
-        # For container or container_vm isolation, use what TenantWithCotnainer
-        # provides us
-        slice = self.get_slice()
-        if slice.default_isolation in ["container_vm", "container"]:
-            super(VPGWCComponent,self).manage_container()
-            return
-
-        if not self.s5s8_pgw_tag:
-            raise XOSConfigurationError("S5S8_PGW_TAG is missed")
-
-        if self.instance:
-            # We're good.
-            return
-
-        instance = self.make_instance()
-        self.instance = instance
-        super(TenantWithContainer, self).save()
-
-    def get_slice(self):
-        if not self.provider_service.slices.count():
-            raise XOSConfigurationError("The service has no slices")
-        slice = self.provider_service.slices.all()[0]
-        return slice
-
-    def make_instance(self):
-        slice = self.provider_service.slices.all()[0]            
-        flavors = Flavor.objects.filter(name=slice.default_flavor)
-#        flavors = Flavor.objects.filter(name="m1.xlarge")
-        if not flavors:
-            raise XOSConfigurationError("No default flavor")
-        default_flavor = slice.default_flavor
-        slice = self.provider_service.slices.all()[0]
-        if slice.default_isolation == "container_vm":
-            (node, parent) = ContainerVmScheduler(slice).pick()
-        else:
-            (node, parent) = LeastLoadedNodeScheduler(slice).pick()
-        instance = Instance(slice = slice,
-                        node = node,
-                        image = self.image,
-                        creator = self.creator,
-                        deployment = node.site_deployment.deployment,
-                        flavor = flavors[0],
-                        isolation = slice.default_isolation,
-                        parent = parent)
-        self.save_instance(instance)
-        return instance
-
-    def ip_to_mac(self, ip):
-        (a, b, c, d) = ip.split('.')
-        return "02:42:%02x:%02x:%02x:%02x" % (int(a), int(b), int(c), int(d))
-
-    # Getter for the message that will appear on the webpage
-    # By default it is "Hello World!"
-    @property
-    def display_message(self):
-        return self.get_attribute(
-            "display_message",
-            self.default_attributes['display_message'])
-
-    @display_message.setter
-    def display_message(self, value):
-        self.set_attribute("display_message", value)
-
-    @property
-    def s5s8_pgw_tag(self):
-        return self.get_attribute(
-            "s5s8_pgw_tag",
-            self.default_attributes['s5s8_pgw_tag'])
-
-    @s5s8_pgw_tag.setter
-    def s5s8_pgw_tag(self, value):
-        self.set_attribute("s5s8_pgw_tag", value)
-
-
-    @property
-    def addresses(self):
-        if (not self.id) or (not self.instance):
-            return {}
-
-        addresses = {}
-        for ns in self.instance.ports.all():
-            if "s5s8_pgw" in ns.network.name.lower():
-                addresses["s5s8_pgw"] = (ns.ip, ns.mac)
-        return addresses
-
-
-    @property
-    def s5s8_pgw_ip(self):
-        return self.addresses.get("s5s8_pgw", (None, None))[0]
-    @property
-    def s5s8_pgw_mac(self):
-        return self.addresses.get("s5s8_pgw", (None, None))[1]
-
 def model_policy_mcord_servicecomponent(pk):
     # This section of code is atomic to prevent race conditions
     with transaction.atomic():
@@ -469,15 +283,3 @@
         # Since this code is atomic it is safe to always use the first tenant
         component = component[0]
         component.manage_container()
-
-
-def model_policy_mcord_servicecomponent(pk):
-    # This section of code is atomic to prevent race conditions
-    with transaction.atomic():
-        # We find all of the tenants that are waiting to update
-        component = VPGWCComponent.objects.select_for_update().filter(pk=pk)
-        if not component:
-            return
-        # Since this code is atomic it is safe to always use the first tenant
-        component = component[0]
-        component.manage_container()