From dfb4e68e005e68a2e272f92c62fc8455712f293a Mon Sep 17 00:00:00 2001
From: Aditi Raveesh <aditirav@thoughtworks.com>
Date: Tue, 14 May 2013 15:33:14 +0530
Subject: Add Middleware for correlation_id

The middleware generates the 'correlation_id' if it is not already present
in the request header. This 'correlation_id' can be used to enable more
effective debugging of requests that span multiple services.

Implements: blueprint create-a-unified-correlation-id

Change-Id: Ibc06a5b05b628e0b640e9299c79127ecbf9c684e
---
 openstack/common/wsgi.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'openstack/common/wsgi.py')

diff --git a/openstack/common/wsgi.py b/openstack/common/wsgi.py
index d184963..80d4b9b 100644
--- a/openstack/common/wsgi.py
+++ b/openstack/common/wsgi.py
@@ -172,6 +172,17 @@ class Middleware(object):
     behavior.
     """
 
+    @classmethod
+    def factory(cls, global_conf, **local_conf):
+        """
+        Factory method for paste.deploy
+        """
+
+        def filter(app):
+            return cls(app)
+
+        return filter
+
     def __init__(self, application):
         self.application = application
 
-- 
cgit