[XEND] Add missing ConsoleController.py

Signed-off-by: Alastair Tse <atse@xensource.com>

tools/python/xen/xend/server/ConsoleController.py

@@ -0,0 +1,29 @@
+from xen.xend.server.DevController import DevController
+from xen.xend.XendLogging import log
+
+from xen.xend.XendError import VmError
+
+class ConsoleController(DevController):
+    """A dummy controller for us to represent serial and vnc
+    console devices with persistent UUIDs.
+    """
+
+    valid_cfg = ['uri', 'uuid', 'protocol']
+
+    def __init__(self, vm):
+        DevController.__init__(self, vm)
+        self.hotplug = False
+
+    def getDeviceDetails(self, config):
+        back = dict([(k, config[k]) for k in self.valid_cfg if k in config])
+        return (self.allocateDeviceID(), back, {})
+
+
+    def getDeviceConfiguration(self, devid):
+        result = DevController.getDeviceConfiguration(self, devid)
+        devinfo = self.readBackend(devid, *self.valid_cfg)
+        config = dict(zip(self.valid_cfg, devinfo))
+        config = dict([(key, val) for key, val in config.items()
+                       if val != None])
+        return config
+