--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/zmqclient.py	Tue Apr 10 17:09:04 2012 +0200
@@ -0,0 +1,61 @@
+# copyright 2003-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+#
+# This file is part of CubicWeb.
+#
+# CubicWeb is free software: you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation, either version 2.1 of the License, or (at your option)
+# any later version.
+#
+# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
+"""Source to query another RQL repository using pyro"""
+
+__docformat__ = "restructuredtext en"
+_ = unicode
+
+from functools import partial
+import zmq
+
+
+# XXX hack to overpass old zmq limitation that force to have
+# only one context per python process
+try:
+    from cubicweb.server.cwzmq import ctx
+except ImportError:
+    ctx = zmq.Context()
+
+class ZMQRepositoryClient(object):
+    """
+    This class delegate the overall repository stuff to a remote source.
+
+    So calling a method of this repository will results on calling the
+    corresponding method of the remote source repository.
+
+    Any raised exception on the remote source is propagated locally.
+
+    ZMQ is used as the transport layer and cPickle is used to serialize data.
+    """
+
+    def __init__(self, config, vreg=None):
+        self.config = config
+        self.vreg = vreg
+        self.socket = ctx.socket(zmq.REQ)
+        self.host = config.get('base-url')
+        self.socket.connect(self.host)
+
+    def __zmqcall__(self, name, *args, **kwargs):
+         self.socket.send_pyobj([name, args, kwargs])
+         result = self.socket.recv_pyobj()
+         if isinstance(result, BaseException):
+             raise result
+         return result
+
+    def __getattr__(self, name):
+        return partial(self.__zmqcall__, name)