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-rw-r--r--nova/wsgi.py22
1 files changed, 13 insertions, 9 deletions
diff --git a/nova/wsgi.py b/nova/wsgi.py
index b91d91121..eb305a3d3 100644
--- a/nova/wsgi.py
+++ b/nova/wsgi.py
@@ -94,11 +94,11 @@ class Middleware(Application):
behavior.
"""
- def __init__(self, application): # pylint: disable-msg=W0231
+ def __init__(self, application): # pylint: disable-msg=W0231
self.application = application
@webob.dec.wsgify
- def __call__(self, req): # pylint: disable-msg=W0221
+ def __call__(self, req): # pylint: disable-msg=W0221
"""Override to implement middleware behavior."""
return self.application
@@ -216,7 +216,7 @@ class Controller(object):
arg_dict['req'] = req
result = method(**arg_dict)
if type(result) is dict:
- return self._serialize(result, req)
+ return self._serialize(result, req)
else:
return result
@@ -240,6 +240,7 @@ class Controller(object):
serializer = Serializer(request.environ, _metadata)
return serializer.deserialize(data)
+
class Serializer(object):
"""
Serializes and deserializes dictionaries to certain MIME types.
@@ -263,12 +264,13 @@ class Serializer(object):
elif 'application/xml' in req.accept:
self.handler = self._to_xml
else:
- self.handler = self._to_json # default
+ # This is the default
+ self.handler = self._to_json
def to_content_type(self, data):
"""
Serialize a dictionary into a string.
-
+
The format of the string will be decided based on the Content Type
requested in self.environ: by Accept: header, or by URL suffix.
"""
@@ -277,7 +279,7 @@ class Serializer(object):
def deserialize(self, datastring):
"""
Deserialize a string to a dictionary.
-
+
The string must be in the format of a supported MIME type.
"""
datastring = datastring.strip()
@@ -298,7 +300,7 @@ class Serializer(object):
def _from_xml_node(self, node, listnames):
"""
Convert a minidom node to a simple Python type.
-
+
listnames is a collection of names of XML nodes whose subnodes should
be considered list items.
"""
@@ -312,7 +314,8 @@ class Serializer(object):
result[attr] = node.attributes[attr].nodeValue
for child in node.childNodes:
if child.nodeType != node.TEXT_NODE:
- result[child.nodeName] = self._from_xml_node(child, listnames)
+ result[child.nodeName] = self._from_xml_node(child,
+ listnames)
return result
def _to_json(self, data):
@@ -347,7 +350,8 @@ class Serializer(object):
else:
node = self._to_xml_node(doc, metadata, k, v)
result.appendChild(node)
- else: # atom
+ else:
+ # Type is atom
node = doc.createTextNode(str(data))
result.appendChild(node)
return result