Add conditional skipping logic in afterRead

Author: RanVaknin

services-custom/dynamodb-enhanced/src/main/java/software/amazon/awssdk/enhanced/dynamodb/internal/extensions/ChainExtension.java

@@ -166,17 +166,22 @@ public ReadModification afterRead(DynamoDbExtensionContext.AfterRead context) {
         Iterator<DynamoDbEnhancedClientExtension> iterator = extensionChain.descendingIterator();
 
         while (iterator.hasNext()) {
+            DynamoDbEnhancedClientExtension extension = iterator.next();
+            if (!extension.shouldProcess(context.tableMetadata())) {
+                continue;
+            }
             Map<String, AttributeValue> itemToTransform =
                 transformedItem == null ? context.items() : transformedItem;
 
+
             DynamoDbExtensionContext.AfterRead afterRead =
                 DefaultDynamoDbExtensionContext.builder().items(itemToTransform)
                                                .operationContext(context.operationContext())
                                                .tableMetadata(context.tableMetadata())
                                                .tableSchema(context.tableSchema())
                                                .build();
 
-            ReadModification readModification = iterator.next().afterRead(afterRead);
+            ReadModification readModification = extension.afterRead(afterRead);
 
             if (readModification.transformedItem() != null) {
                 transformedItem = readModification.transformedItem();