Add more logs

Author: sakthivelmanii

google-cloud-spanner/src/main/java/com/google/cloud/spanner/AsyncResultSetImpl.java

@@ -469,13 +469,14 @@ public void run() {
         // Non-streaming result sets do not trigger this callback, and for those result sets, we
         // need to eagerly start the ProduceRowsRunnable.
         synchronized (monitor) {
-          if (state == State.RUNNING || state == State.CONSUMING) {
+          if (state == State.STREAMING_INITIALIZED) {
             return;
           }
-        }
-        System.out.println("Initiate Streaming");
-        if (!initiateStreaming(AsyncResultSetImpl.this)) {
-          initiateProduceRows();
+          state = State.STREAMING_INITIALIZED;
+          System.out.printf("State: %s\n", state);
+          if (!initiateStreaming(AsyncResultSetImpl.this)) {
+            initiateProduceRows();
+          }
         }
       } catch (Throwable exception) {
         executionException = SpannerExceptionFactory.asSpannerException(exception);
@@ -494,7 +495,6 @@ public ApiFuture<Void> setCallback(Executor exec, ReadyCallback cb) {
 
       // Start to fetch data and buffer these.
       this.result = SettableApiFuture.create();
-      this.state = State.STREAMING_INITIALIZED;
       this.service.execute(new InitiateStreamingRunnable());
       this.executor = MoreExecutors.newSequentialExecutor(Preconditions.checkNotNull(exec));
       this.callback = Preconditions.checkNotNull(cb);