77 lines
2.8 KiB
Python
77 lines
2.8 KiB
Python
from rest_framework import generics
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from rest_framework import permissions
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from .serializers import VirtualMachineSerializer
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from .models import OpenNebulaManager
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from rest_framework.exceptions import APIException
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class ServiceUnavailable(APIException):
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status_code = 503
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default_detail = 'Service temporarily unavailable, try again later.'
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default_code = 'service_unavailable'
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class VmCreateView(generics.ListCreateAPIView):
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"""This class handles the GET and POST requests."""
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serializer_class = VirtualMachineSerializer
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permission_classes = (permissions.IsAuthenticated, )
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def get_queryset(self):
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owner = self.request.user
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manager = OpenNebulaManager(email=owner.email,
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password=owner.password)
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# We may have ConnectionRefusedError if we don't have a
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# connection to OpenNebula. For now, we raise ServiceUnavailable
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try:
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vms = manager.get_vms()
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except ConnectionRefusedError:
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raise ServiceUnavailable
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return vms
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def perform_create(self, serializer):
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"""Save the post data when creating a new template."""
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serializer.save(owner=self.request.user)
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class VmDetailsView(generics.RetrieveUpdateDestroyAPIView):
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"""This class handles the http GET, PUT and DELETE requests."""
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permission_classes = (permissions.IsAuthenticated, )
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serializer_class = VirtualMachineSerializer
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def get_queryset(self):
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owner = self.request.user
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manager = OpenNebulaManager(email=owner.email,
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password=owner.password)
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# We may have ConnectionRefusedError if we don't have a
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# connection to OpenNebula. For now, we raise ServiceUnavailable
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try:
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vms = manager.get_vms()
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except ConnectionRefusedError:
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raise ServiceUnavailable
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return vms
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def get_object(self):
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owner = self.request.user
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manager = OpenNebulaManager(email=owner.email,
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password=owner.password)
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# We may have ConnectionRefusedError if we don't have a
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# connection to OpenNebula. For now, we raise ServiceUnavailable
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try:
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vm = manager.get_vm(self.kwargs.get('pk'))
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except ConnectionRefusedError:
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raise ServiceUnavailable
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return vm
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def perform_destroy(self, instance):
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owner = self.request.user
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manager = OpenNebulaManager(email=owner.email,
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password=owner.password)
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# We may have ConnectionRefusedError if we don't have a
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# connection to OpenNebula. For now, we raise ServiceUnavailable
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try:
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manager.delete_vm(instance.id)
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except ConnectionRefusedError:
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raise ServiceUnavailable
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