X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=openflow-protocol-impl%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fopenflowjava%2Fprotocol%2Fimpl%2Fcore%2FVersionMessageWrapper.java;h=cdbe419c92866c5d658e5757686ece3ea238b3c6;hb=HEAD;hp=fc41b8e7148df403e8f7ecfbb6b4f9ff5df587e7;hpb=7d9b6038060779d819e17d5add8556dcc097fcea;p=openflowjava.git

diff --git a/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/core/VersionMessageWrapper.java b/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/core/VersionMessageWrapper.java
index fc41b8e7..cdbe419c 100644
--- a/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/core/VersionMessageWrapper.java
+++ b/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/core/VersionMessageWrapper.java
@@ -1,40 +1,45 @@
-/* Copyright (C)2013 Pantheon Technologies, s.r.o. All rights reserved. */
-package org.opendaylight.openflowjava.protocol.impl.core;
-
-import io.netty.buffer.ByteBuf;
-
-/**
- * Wraps received messages (includes version)
- * @author michal.polkorab
- */
-public class VersionMessageWrapper {
-
-    private short version;
-    private ByteBuf messageBuffer;
-    
-    /**
-     * Constructor
-     * @param version version decoded in {@link OFVersionDetector}
-     * @param messageBuffer message received from {@link OFFrameDecoder}
-     */
-    public VersionMessageWrapper(short version, ByteBuf messageBuffer) {
-        this.version = version;
-        this.messageBuffer = messageBuffer;
-    }
-
-    /**
-     * @return the version version decoded in {@link OFVersionDetector}
-     */
-    public short getVersion() {
-        return version;
-    }
-
-    /**
-     * @return the messageBuffer message received from {@link OFFrameDecoder}
-     */
-    public ByteBuf getMessageBuffer() {
-        return messageBuffer;
-    }
-    
-    
-}
+/*
+ * Copyright (c) 2013 Pantheon Technologies s.r.o. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.openflowjava.protocol.impl.core;
+
+import com.google.common.base.Preconditions;
+import io.netty.buffer.ByteBuf;
+
+/**
+ * Wraps received messages (includes version)
+ * @author michal.polkorab
+ */
+public class VersionMessageWrapper {
+    private final short version;
+    private final ByteBuf messageBuffer;
+
+    /**
+     * Constructor
+     * @param version version decoded in {@link OFVersionDetector}
+     * @param messageBuffer message received from {@link OFFrameDecoder}
+     */
+    public VersionMessageWrapper(final short version, final ByteBuf messageBuffer) {
+        this.version = version;
+        this.messageBuffer = Preconditions.checkNotNull(messageBuffer);
+    }
+
+    /**
+     * @return the version version decoded in {@link OFVersionDetector}
+     */
+    public short getVersion() {
+        return version;
+    }
+
+    /**
+     * @return the messageBuffer message received from {@link OFFrameDecoder}
+     */
+    public ByteBuf getMessageBuffer() {
+        return messageBuffer;
+    }
+}