openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/match/AbstractOxmIpv4AddressDeserializer.java

   1 /*\r
   2  * Copyright (c) 2013 Pantheon Technologies s.r.o. and others.  All rights reserved.\r
   3  *\r
   4  * This program and the accompanying materials are made available under the\r
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,\r
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html\r
   7  */\r
   8 package org.opendaylight.openflowjava.protocol.impl.deserialization.match;\r
   9 \r
  10 import io.netty.buffer.ByteBuf;\r
  11 \r
  12 import java.util.ArrayList;\r
  13 import java.util.List;\r
  14 \r
  15 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;\r
  16 import org.opendaylight.openflowjava.protocol.impl.util.EncodeConstants;\r
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Address;\r
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.Ipv4AddressMatchEntry;\r
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.Ipv4AddressMatchEntryBuilder;\r
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.oxm.fields.grouping.MatchEntries;\r
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.oxm.fields.grouping.MatchEntriesBuilder;\r
  22 \r
  23 import com.google.common.base.Joiner;\r
  24 \r
  25 /**\r
  26  * @author michal.polkorab\r
  27  *\r
  28  */\r
  29 public abstract class AbstractOxmIpv4AddressDeserializer extends AbstractOxmMatchEntryDeserializer \r
  30         implements OFDeserializer<MatchEntries> {\r
  31 \r
  32     @Override\r
  33     public MatchEntries deserialize(ByteBuf input) {\r
  34         MatchEntriesBuilder builder = processHeader(getOxmClass(), getOxmField(), input);\r
  35         addIpv4AddressAugmentation(builder, input);\r
  36         if (builder.isHasMask()) {\r
  37             OxmMaskDeserializer.addMaskAugmentation(builder, input, EncodeConstants.SIZE_OF_INT_IN_BYTES);\r
  38         }\r
  39         return builder.build();\r
  40     }\r
  41 \r
  42     private static void addIpv4AddressAugmentation(MatchEntriesBuilder builder, ByteBuf input) {\r
  43         Ipv4AddressMatchEntryBuilder ipv4AddressBuilder = new Ipv4AddressMatchEntryBuilder();\r
  44         List<String> groups = new ArrayList<>();\r
  45         for (int i = 0; i < EncodeConstants.GROUPS_IN_IPV4_ADDRESS; i++) {\r
  46             groups.add(Short.toString(input.readUnsignedByte()));\r
  47         }\r
  48         Joiner joiner = Joiner.on(".");\r
  49         ipv4AddressBuilder.setIpv4Address(new Ipv4Address(joiner.join(groups)));\r
  50         builder.addAugmentation(Ipv4AddressMatchEntry.class, ipv4AddressBuilder.build());\r
  51     }\r
  52 }\r