shopify hmac optimise

src/main/java/au/com/royalpay/payment/manage/shopify/support/ShopifyHttpUtils.java

@@ -1,5 +1,7 @@
 package au.com.royalpay.payment.manage.shopify.support;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.web.util.ContentCachingRequestWrapper;
 
 import javax.servlet.http.HttpServletRequest;
@@ -8,9 +10,12 @@ import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 
 public class ShopifyHttpUtils {
+    private ShopifyHttpUtils(){}
+    private static final Logger logger = LoggerFactory.getLogger(ShopifyHttpUtils.class);
 
     public static String getRequestBody(HttpServletRequest request) {
         if (request instanceof ContentCachingRequestWrapper) {
+            logger.info("Shopify Request Cached, read directly");
             return new String(((ContentCachingRequestWrapper) request).getContentAsByteArray(), StandardCharsets.UTF_8);
         }
         BufferedReader br = null;