fix serialization of parameter of type map

Author: chilang

boto/sns/connection.py

@@ -71,6 +71,32 @@ def __init__(self, aws_access_key_id=None, aws_secret_access_key=None,
                                     security_token=security_token,
                                     validate_certs=validate_certs)
 
+    def _build_dict_as_list_params(self, params, dictionary, name):
+      """
+            Serialize a parameter 'name' which value is a 'dictionary' into a list of parameters.
+
+            See: http://docs.aws.amazon.com/sns/latest/api/API_SetPlatformApplicationAttributes.html
+            For example::
+
+                dictionary = {'PlatformPrincipal': 'foo', 'PlatformCredential': 'bar'}
+                name = 'Attributes'
+
+            would result in params dict being populated with:
+                Attributes.entry.1.key    = PlatformPrincipal
+                Attributes.entry.1.value  = foo
+                Attributes.entry.2.key    = PlatformCredential
+                Attributes.entry.2.value  = bar
+
+      :param params: the resulting parameters will be added to this dict
+      :param dictionary: dict - value of the serialized parameter
+      :param name: name of the serialized parameter
+      """
+      for kv, index in zip(dictionary.items(), range(1, len(dictionary.items())+1)):
+        key, value = kv
+        prefix = '%s.entry.%s' % (name, index)
+        params['%s.key' % prefix] = key
+        params['%s.value' % prefix] = value
+
     def _required_auth_capability(self):
         return ['hmac-v4']
 
@@ -406,7 +432,7 @@ def create_platform_application(self, name=None, platform=None,
         if platform is not None:
             params['Platform'] = platform
         if attributes is not None:
-            params['Attributes'] = attributes
+            self._build_dict_as_list_params(params, attributes, 'Attributes')
         return self._make_request(action='CreatePlatformApplication',
                                   params=params)
 
@@ -453,7 +479,7 @@ def set_platform_application_attributes(self,
         if platform_application_arn is not None:
             params['PlatformApplicationArn'] = platform_application_arn
         if attributes is not None:
-            params['Attributes'] = attributes
+            self._build_dict_as_list_params(params, attributes, 'Attributes')
         return self._make_request(action='SetPlatformApplicationAttributes',
                                   params=params)
 
@@ -601,7 +627,7 @@ def create_platform_endpoint(self, platform_application_arn=None,
         if custom_user_data is not None:
             params['CustomUserData'] = custom_user_data
         if attributes is not None:
-            params['Attributes'] = attributes
+            self._build_dict_as_list_params(params, attributes, 'Attributes')
         return self._make_request(action='CreatePlatformEndpoint',
                                   params=params)
 
@@ -654,7 +680,7 @@ def set_endpoint_attributes(self, endpoint_arn=None, attributes=None):
         if endpoint_arn is not None:
             params['EndpointArn'] = endpoint_arn
         if attributes is not None:
-            params['Attributes'] = attributes
+            self._build_dict_as_list_params(params, attributes, 'Attributes')
         return self._make_request(action='SetEndpointAttributes',
                                   params=params)