mappingservice/lisp-proto/src/main/java/org/opendaylight/lispflowmapping/lisp/serializer/address/Ipv6Serializer.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 com.google.common.net.InetAddresses;
  11 import java.net.InetAddress;
  12 import java.net.UnknownHostException;
  13 import java.nio.ByteBuffer;
  14 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana.afn.safi.rev130704.AddressFamily;
  15 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.Ipv6Afi;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.LispAddress;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv6;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv6Builder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.EidBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.Rloc;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.RlocBuilder;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 /**
  30  * Class to (de)serialize IPv6 addresses from/to String representation.
  31  *
  32  * @author Lorand Jakab
  33  */
  34 public final class Ipv6Serializer extends LispAddressSerializer {
  35
  36     protected static final Logger LOG = LoggerFactory.getLogger(Ipv6Serializer.class);
  37
  38     private static final Ipv6Serializer INSTANCE = new Ipv6Serializer();
  39
  40     // Private constructor prevents instantiation from other classes
  41     private Ipv6Serializer() {
  42     }
  43
  44     public static Ipv6Serializer getInstance() {
  45         return INSTANCE;
  46     }
  47
  48     @Override
  49     public int getAddressSize(LispAddress lispAddress) {
  50         return Length.IPV6;
  51     }
  52
  53     @Override
  54     public int getAddressSize(SimpleAddress simpleAddress) {
  55         return Length.IPV6;
  56     }
  57
  58     @Override
  59     protected short getAfi() {
  60         return (short) AddressFamily.IpV6.getIntValue();
  61     }
  62
  63     @Override
  64     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  65         Ipv6 address = (Ipv6) lispAddress.getAddress();
  66         buffer.put(InetAddresses.forString(address.getIpv6().getValue()).getAddress());
  67     }
  68
  69     @Override
  70     protected void serializeData(ByteBuffer buffer, SimpleAddress address) {
  71         buffer.put(InetAddresses.forString(address.getIpAddress().getIpv6Address().getValue()).getAddress());
  72     }
  73
  74     @Override
  75     protected Eid deserializeEidData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  76         EidBuilder eb = new EidBuilder();
  77         eb.setAddressType(Ipv6Afi.VALUE);
  78         eb.setVirtualNetworkId(getVni(ctx));
  79         eb.setAddress(new Ipv6Builder().setIpv6(deserializeData(buffer)).build());
  80         return eb.build();
  81     }
  82
  83     @Override
  84     protected Rloc deserializeRlocData(ByteBuffer buffer) {
  85         RlocBuilder rb = new RlocBuilder();
  86         rb.setAddressType(Ipv6Afi.VALUE);
  87         rb.setVirtualNetworkId(null);
  88         rb.setAddress(new Ipv6Builder().setIpv6(deserializeData(buffer)).build());
  89         return rb.build();
  90     }
  91
  92     @Override
  93     protected SimpleAddress deserializeSimpleAddressData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  94         return new SimpleAddress(new IpAddress(deserializeData(buffer)));
  95     }
  96
  97     private static Ipv6Address deserializeData(ByteBuffer buffer) {
  98         byte[] ipBuffer = new byte[16];
  99         InetAddress address = null;
 100         buffer.get(ipBuffer);
 101         try {
 102             address = InetAddress.getByAddress(ipBuffer);
 103         } catch (UnknownHostException e) {
 104             LOG.debug("Unknown host {}", ipBuffer, e);
 105         }
 106         return new Ipv6Address(address.getHostAddress());
 107     }
 108
 109     protected interface Length {
 110         int IPV6 = 16;
 111     }
 112
 113 }