Added a vm_define method on hypervisor instance.

ccnode/hypervisor/__init__.py

@@ -100,10 +100,7 @@ class Handler(HostHandler):
         if format != 'xml':
             raise NotImplementedError('Format not supported')
 
-        try:
-            return _libvirt.connection.defineXML(data).name()
-        except libvirt.libvirtError:
-            logger.exception('Error while creating domain')
+        return self.hypervisor.vm_define(data)
 
     def vm_undefine(self, name):
         logger.debug('VM undefin')
@@ -260,6 +257,16 @@ class Hypervisor(object):
         logger.info('Delete domain: %s (%s)', vm.name, vm.uuid)
         self.main.remove_sub_object(vm)
 
+    def vm_define(self, xml_desc):
+        """Create a VM on the Hypervisor
+        :param str xml_desc: XML description in libvirt format
+        :return: VM name created
+        """
+        try:
+            return self.vir_con.defineXML(xml_desc).name()
+        except libvirt.libvirtError:
+            logger.exception('Error while creating domain')
+
     def _count_domain(self, filter=lambda d: True):
         count = 0