mappingservice/lisp-proto/src/main/java/org/opendaylight/lispflowmapping/lisp/serializer/address/Ipv4PrefixSerializer.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.lispflowmapping.lisp.serializer.address;
   9
  10 import java.net.Inet4Address;
  11 import java.net.InetAddress;
  12 import java.net.UnknownHostException;
  13 import java.nio.ByteBuffer;
  14
  15 import org.opendaylight.lispflowmapping.lisp.serializer.address.Ipv4Serializer.Length;
  16 import org.opendaylight.lispflowmapping.lisp.serializer.exception.LispSerializationException;
  17 import org.opendaylight.lispflowmapping.lisp.util.MaskUtil;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana.afn.safi.rev130704.AddressFamily;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpPrefix;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.Ipv4PrefixAfi;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.LispAddress;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv4Prefix;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv4PrefixBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.EidBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.Rloc;
  28
  29 /**
  30  * @author Lorand Jakab
  31  *
  32  */
  33 public class Ipv4PrefixSerializer extends LispAddressSerializer {
  34
  35     private static final Ipv4PrefixSerializer INSTANCE = new Ipv4PrefixSerializer();
  36
  37     // Private constructor prevents instantiation from other classes
  38     private Ipv4PrefixSerializer() {
  39     }
  40
  41     public static Ipv4PrefixSerializer getInstance() {
  42         return INSTANCE;
  43     }
  44
  45     @Override
  46     public int getAddressSize(LispAddress lispAddress) {
  47         return Length.IPV4; // XXX does this need to worry about the mask too?
  48     }
  49
  50     @Override
  51     public int getAddressSize(SimpleAddress simpleAddress) {
  52         return Length.IPV4; // XXX does this need to worry about the mask too?
  53     }
  54
  55     @Override
  56     protected short getAfi() {
  57         return (short) AddressFamily.IpV4.getIntValue();
  58     }
  59
  60     @Override
  61     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  62         Ipv4Prefix address = (Ipv4Prefix) lispAddress.getAddress();
  63         try {
  64             buffer.put(Inet4Address.getByName(MaskUtil.getAddressStringForIpv4Prefix(address)).getAddress());
  65         } catch (UnknownHostException e) {
  66         }
  67     }
  68
  69     @Override
  70     protected void serializeData(ByteBuffer buffer, SimpleAddress address) {
  71         try {
  72             buffer.put(Inet4Address.getByName(MaskUtil.getAddressStringForIpPrefix(address.getIpPrefix())).getAddress());
  73         } catch (UnknownHostException e) {
  74         }
  75     }
  76
  77     @Override
  78     protected Eid deserializeEidData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  79         EidBuilder eb = new EidBuilder();
  80         eb.setAddressType(Ipv4PrefixAfi.class);
  81         eb.setVirtualNetworkId(getVni(ctx));
  82         eb.setAddress(new Ipv4PrefixBuilder().setIpv4Prefix(deserializeData(buffer, ctx)).build());
  83         return eb.build();
  84     }
  85
  86     @Override
  87     protected Rloc deserializeRlocData(ByteBuffer buffer) {
  88         throw new LispSerializationException("RLOCs should not be deserialized into prefixes!");
  89     }
  90
  91     @Override
  92     protected SimpleAddress deserializeSimpleAddressData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  93         return new SimpleAddress(new IpPrefix(deserializeData(buffer, ctx)));
  94     }
  95
  96     private org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix
  97     deserializeData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  98         byte[] ipBuffer = new byte[4];
  99         InetAddress address = null;
 100         buffer.get(ipBuffer);
 101         try {
 102             address = InetAddress.getByAddress(ipBuffer);
 103         } catch (UnknownHostException e) {
 104         }
 105         return new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix(
 106                 address.getHostAddress() + "/" + ctx.getMaskLen());
 107     }
 108 }