X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fprotocol_plugins%2Fopenflow%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fprotocol_plugin%2Fopenflow%2Finternal%2FDescStatisticsConverter.java;h=e2945628868d0b4e1b6477e2f4285353f0d3f941;hb=refs%2Fchanges%2F49%2F449%2F1;hp=7a09a480dc37e32335bb038efe641cdde496f3f5;hpb=0462ef3bfb5ee79460e73e103e347ad8ec4a2e34;p=controller.git

diff --git a/opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/DescStatisticsConverter.java b/opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/DescStatisticsConverter.java
index 7a09a480dc..e294562886 100644
--- a/opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/DescStatisticsConverter.java
+++ b/opendaylight/protocol_plugins/openflow/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/internal/DescStatisticsConverter.java
@@ -1,4 +1,3 @@
-
 /*
  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
  *
@@ -11,25 +10,26 @@ package org.opendaylight.controller.protocol_plugin.openflow.internal;
 
 import java.util.List;
 
+import org.opendaylight.controller.sal.reader.NodeDescription;
 import org.openflow.protocol.statistics.OFDescriptionStatistics;
 import org.openflow.protocol.statistics.OFStatistics;
-
-import org.opendaylight.controller.sal.reader.NodeDescription;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
- * Utility class for converting openflow description statistics
- * into SAL NodeDescription object
- *
- *
- *
+ * Utility class for converting openflow description statistics into SAL
+ * NodeDescription object
  */
 public class DescStatisticsConverter {
+    private static final Logger log = LoggerFactory
+            .getLogger(DescStatisticsConverter.class);
     NodeDescription hwDesc;
     OFDescriptionStatistics ofDesc;
 
     public DescStatisticsConverter(List<OFStatistics> statsList) {
         this.hwDesc = null;
-        this.ofDesc = (OFDescriptionStatistics) statsList.get(0);
+        this.ofDesc = (statsList == null || statsList.isEmpty())? 
+                null : (OFDescriptionStatistics) statsList.get(0);
     }
 
     public NodeDescription getHwDescription() {
@@ -41,6 +41,8 @@ public class DescStatisticsConverter {
             hwDesc.setDescription(ofDesc.getDatapathDescription());
             hwDesc.setSerialNumber(ofDesc.getSerialNumber());
         }
+        log.trace("OFDescriptionStatistics: {}", ofDesc);
+        log.trace("NodeDescription: {}", hwDesc);
         return hwDesc;
     }