Added support to log retries in storage (Azure#18763)

Author: gapra-msft

sdk/storage/azure-storage-common/CHANGELOG.md

@@ -1,6 +1,7 @@
 # Release History
 
 ## 12.11.0-beta.1 (Unreleased)
+- Added support to log retries 
 - Removed a deep copy in PayloadSizeGate
 - Fixed a bug that would throw if uploading using a stream that returned a number > 0 from available() after the stream had ended
 

sdk/storage/azure-storage-common/src/main/java/com/azure/storage/common/policy/RequestRetryPolicy.java

@@ -9,6 +9,7 @@
 import com.azure.core.http.HttpPipelineNextPolicy;
 import com.azure.core.http.HttpRequest;
 import com.azure.core.http.HttpResponse;
+import com.azure.core.http.policy.HttpLoggingPolicy;
 import com.azure.core.http.policy.HttpPipelinePolicy;
 import com.azure.core.util.UrlBuilder;
 import reactor.core.publisher.Flux;
@@ -105,6 +106,10 @@ stream, the buffers that were emitted will have already been consumed (their pos
                 return Mono.error(e);
             }
         }
+        /*
+        Update the RETRY_COUNT_CONTEXT to log retries.
+         */
+        context.setData(HttpLoggingPolicy.RETRY_COUNT_CONTEXT, attempt + 1);
 
         /*
          We want to send the request with a given timeout, but we don't want to kickoff that timeout-bound operation