svn commit: r1090850 - /incubator/libcloud/trunk/libcloud/common/base.py

[to...@apache.org]

Author: tomaz
Date: Sun Apr 10 17:43:49 2011
New Revision: 1090850

URL: http://svn.apache.org/viewvc?rev=1090850&view=rev
Log:
Add a pre connect hook which gets called before sending a request to the remote
server and can perform final manipulation with the requests parameters and
headers.

Modified:
    incubator/libcloud/trunk/libcloud/common/base.py

Modified: incubator/libcloud/trunk/libcloud/common/base.py
URL: http://svn.apache.org/viewvc/incubator/libcloud/trunk/libcloud/common/base.py?rev=1090850&r1=1090849&r2=1090850&view=diff
==============================================================================
--- incubator/libcloud/trunk/libcloud/common/base.py (original)
+++ incubator/libcloud/trunk/libcloud/common/base.py Sun Apr 10 17:43:49 2011
@@ -345,6 +345,8 @@ class ConnectionKey(object):
         if data is not None:
             headers.update({'Content-Length': str(len(data))})
 
+        params, headers = self.pre_connect_hook(params, headers)
+
         if params:
             url = '?'.join((action, urllib.urlencode(params)))
         else:
@@ -395,6 +397,20 @@ class ConnectionKey(object):
         """
         return headers
 
+    def pre_connect_hook(self, params, headers):
+        """
+        A hook which is called before connecting to the remote server.
+        This hook can perform a final manipulation on the params, headers and
+        url parameters.
+
+        @type params: C{dict}
+        @param params: Request parameters.
+
+        @type headers: C{dict}
+        @param headers: Request headers.
+        """
+        return params, headers
+
     def encode_data(self, data):
         """
         Encode body data.