Bug 2756 - Match model update

[openflowjava.git] / openflow-protocol-impl / src / main / java / org / opendaylight / openflowjava / protocol / impl / deserialization / match / OxmDeserializerHelper.java

diff --git a/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/match/OxmDeserializerHelper.java b/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/match/OxmDeserializerHelper.java
new file mode 100644 (file)
index 0000000..1127fae
--- /dev/null
+++ b/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/match/OxmDeserializerHelper.java
@@ -0,0 +1,48 @@
+/*
+ * 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.deserialization.match;
+
+import io.netty.buffer.ByteBuf;
+
+import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
+import org.opendaylight.openflowjava.util.ByteBufUtils;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev100924.MacAddress;
+
+/**
+ * @author michal.polkorab
+ *
+ */
+public final class OxmDeserializerHelper {
+
+    private OxmDeserializerHelper() {
+        throw new UnsupportedOperationException("Utility class shouldn't be instantiated");
+    }
+
+    /**
+     * Converts binary data into binary mask (for match entries)
+     * @param input input ByteBuf
+     * @param matchEntryLength mask length
+     * @return binary mask
+     */
+    public static byte[] convertMask(ByteBuf input, int matchEntryLength) {
+        byte[] mask = new byte[matchEntryLength];
+        input.readBytes(mask);
+        return mask;
+    }
+
+    /**
+     * Converts binary data into mac address
+     * @param input input ByteBuf
+     * @return mac address
+     */
+    public static MacAddress convertMacAddress(ByteBuf input) {
+        byte[] address = new byte[EncodeConstants.MAC_ADDRESS_LENGTH];
+        input.readBytes(address);
+        return new MacAddress(ByteBufUtils.macAddressToString(address));
+    }
+}