Refactor: remove an extra inner class, IntentBatchProcess

IntentBatchProcess wraps a collection of IntentData to just behave
as Runnable. It can be removed by lambda expression

Change-Id: Ic6e1ae840311faff6314a8ce9db9a5277d8595cd

@@ -301,16 +301,14 @@ public class IntentManager
         });
     }
 
-    private class IntentBatchProcess implements Runnable {
-
-        protected final Collection<IntentData> data;
-
-        IntentBatchProcess(Collection<IntentData> data) {
-            this.data = checkNotNull(data);
-        }
-
+    private class InternalBatchDelegate implements IntentBatchDelegate {
         @Override
-        public void run() {
+        public void execute(Collection<IntentData> operations) {
+            log.debug("Execute {} operation(s).", operations.size());
+            log.trace("Execute operations: {}", operations);
+
+            // batchExecutor is single-threaded, so only one batch is in flight at a time
+            batchExecutor.execute(() -> {
                 try {
                 /*
                  1. wrap each intentdata in a runnable and submit
@@ -318,7 +316,7 @@ public class IntentManager
                  3. accumulate results and submit batch write of IntentData to store
                     (we can also try to update these individually)
                  */
-                submitUpdates(waitForFutures(createIntentUpdates()));
+                    submitUpdates(waitForFutures(createIntentUpdates(operations)));
                 } catch (Exception e) {
                     log.error("Error submitting batches:", e);
                     // FIXME incomplete Intents should be cleaned up
@@ -331,9 +329,11 @@ public class IntentManager
 //            batchService.removeIntentOperations(data);
                 }
                 accumulator.ready();
+            });
+        }
     }
 
-        private List<Future<FinalIntentProcessPhase>> createIntentUpdates() {
+    private List<Future<FinalIntentProcessPhase>> createIntentUpdates(Collection<IntentData> data) {
         return data.stream()
                 .map(IntentManager.this::submitIntentData)
                 .collect(Collectors.toList());
@@ -357,18 +357,6 @@ public class IntentManager
                 .map(FinalIntentProcessPhase::data)
                 .collect(Collectors.toList()));
     }
-    }
-
-    private class InternalBatchDelegate implements IntentBatchDelegate {
-        @Override
-        public void execute(Collection<IntentData> operations) {
-            log.debug("Execute {} operation(s).", operations.size());
-            log.trace("Execute operations: {}", operations);
-
-            // batchExecutor is single-threaded, so only one batch is in flight at a time
-            batchExecutor.execute(new IntentBatchProcess(operations));
-        }
-    }
 
     private class InternalIntentProcessor implements IntentProcessor {
         @Override