Fix Logger use

[openflowjava.git] / simple-client / src / main / java / org / opendaylight / openflowjava / protocol / impl / clients / WaitForMessageEvent.java

diff --git a/simple-client/src/main/java/org/opendaylight/openflowjava/protocol/impl/clients/WaitForMessageEvent.java b/simple-client/src/main/java/org/opendaylight/openflowjava/protocol/impl/clients/WaitForMessageEvent.java
index c4c786c64ebf4f8ab997ecf0fe25895bd49d02aa..b448111a85e7a74af188462091945cfdea36ac1a 100644 (file)
--- a/simple-client/src/main/java/org/opendaylight/openflowjava/protocol/impl/clients/WaitForMessageEvent.java
+++ b/simple-client/src/main/java/org/opendaylight/openflowjava/protocol/impl/clients/WaitForMessageEvent.java
@@ -19,7 +19,7 @@ import org.slf4j.LoggerFactory;
  * @author michal.polkorab
  */
 public class WaitForMessageEvent implements ClientEvent {
-    
+
     private static final Logger LOGGER = LoggerFactory.getLogger(WaitForMessageEvent.class);
     private byte[] headerExpected;
     private byte[] headerReceived;
@@ -40,8 +40,10 @@ public class WaitForMessageEvent implements ClientEvent {
             return false;
         }
         if (!Arrays.equals(headerExpected, headerReceived)) {
-            LOGGER.debug("expected msg: " + ByteBufUtils.bytesToHexString(headerExpected));
-            LOGGER.debug("received msg: " + ByteBufUtils.bytesToHexString(headerReceived));
+            if (LOGGER.isDebugEnabled()) {
+                LOGGER.debug("expected msg: {}", ByteBufUtils.bytesToHexString(headerExpected));
+                LOGGER.debug("received msg: {}", ByteBufUtils.bytesToHexString(headerReceived));
+            }
             return false;
         }
         LOGGER.debug("Headers OK");