Merging the openflow part to the nepi-3-dev branch

[nepi.git] / src / nepi / resources / omf / omf_client.py

diff --git a/src/nepi/resources/omf/omf_client.py b/src/nepi/resources/omf/omf_client.py
index a9a8cd9..05af4f1 100644 (file)
--- a/src/nepi/resources/omf/omf_client.py
+++ b/src/nepi/resources/omf/omf_client.py
@@ -20,13 +20,30 @@
 
 from nepi.util.logger import Logger
 
-import sleekxmpp
-from sleekxmpp.exceptions import IqError, IqTimeout
+try:
+    import sleekxmpp
+    from sleekxmpp.exceptions import IqError, IqTimeout
+    class BaseOMFClient(sleekxmpp.ClientXMPP):
+        pass
+except ImportError:
+    msg = ("SleekXMPP is not installed. Without this library "
+          "you will be not able to use OMF Resources "
+          "if you want to install SleekXmpp: \n"
+          " git clone -b develop git://github.com/fritzy/SleekXMPP.git \n"
+          " cd SleekXMPP \n"
+          " sudo python setup.py install\n")
+
+    logger = Logger("BaseOMFClient")
+    logger.debug(msg)
+
+    class BaseOMFClient(object):
+        pass
+
 import traceback
 import xml.etree.ElementTree as ET
 
 # inherit from BaseXmpp and XMLstream classes
-class OMFClient(sleekxmpp.ClientXMPP, Logger): 
+class OMFClient(BaseOMFClient, Logger): 
     """
     .. class:: Class Args :