Fix SimpleDB serialization with latest aws-sdk-core (#3056)

Author: mullermp

build_tools/customizations.rb

@@ -199,11 +199,11 @@ def dynamodb_example_deep_transform(subsegment, keys)
     api('S3Control') do |api|
       # handled by endpoints 2.0
       api['operations'].each do |_key, operation|
-        # removes accountId host prefix trait and requiredness
-        # defensive - checks host prefix labels and removes only those from API
+        # Removes the accountId host prefix trait and requiredness.
+        # Checks the hostPrefix labels and removes only those from the API.
         next unless operation['endpoint'] &&
-                    (host_prefix = operation['endpoint']['hostPrefix'])
-                    host_prefix != '{AccountId}.'
+                    (host_prefix = operation['endpoint']['hostPrefix']) &&
+                    host_prefix == '{AccountId}.'
 
         operation['endpoint'].delete('hostPrefix')
 
@@ -216,6 +216,22 @@ def dynamodb_example_deep_transform(subsegment, keys)
       end
     end
 
+    # SimpleDB does not adhere to the query protocol guidelines because it
+    # uses both flattened and locationName. Query protocol is supposed to
+    # ignore location name (xmlName) when flattened (xmlFlattened) is used.
+    api('SimpleDB') do |api|
+      api['shapes'].each do |_, shape|
+        next unless shape['type'] == 'structure'
+
+        shape['members'].each do |_, member|
+          member_ref = api['shapes'][member['shape']]
+          next unless member_ref['flattened']
+
+          member['locationName'] = member_ref['member']['locationName']
+        end
+      end
+    end
+
     smoke('SMS') do |smoke|
       smoke['testCases'] = []
     end

gems/aws-sdk-simpledb/CHANGELOG.md

@@ -1,6 +1,8 @@
 Unreleased Changes
 ------------------
 
+* Issue - Fix query serialization with `aws-sdk-core` >= 3.192.
+
 1.49.0 (2024-06-25)
 ------------------