mappingservice/lisp-proto/src/main/java/org/opendaylight/lispflowmapping/lisp/serializer/address/Ipv6BinarySerializer.java

   1 /*
   2  * Copyright (c) 2016 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
  12 import java.net.InetAddress;
  13 import java.net.UnknownHostException;
  14 import java.nio.ByteBuffer;
  15
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana.afn.safi.rev130704.AddressFamily;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.LispAddress;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.inet.binary.types.rev160303.Ipv6AddressBinary;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.Ipv6BinaryAfi;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv6Binary;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv6BinaryBuilder;
  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 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.RlocBuilder;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 /**
  33  * Class to (de)serialize IPv6 addresses from/to byte[] representation.
  34  *
  35  * @author Lorand Jakab
  36  *
  37  */
  38 public final class Ipv6BinarySerializer extends LispAddressSerializer {
  39
  40     protected static final Logger LOG = LoggerFactory.getLogger(Ipv6BinarySerializer.class);
  41
  42     private static final Ipv6BinarySerializer INSTANCE = new Ipv6BinarySerializer();
  43
  44     // Private constructor prevents instantiation from other classes
  45     private Ipv6BinarySerializer() {
  46     }
  47
  48     public static Ipv6BinarySerializer getInstance() {
  49         return INSTANCE;
  50     }
  51
  52     @Override
  53     public int getAddressSize(LispAddress lispAddress) {
  54         return Length.IPV6;
  55     }
  56
  57     @Override
  58     public int getAddressSize(SimpleAddress simpleAddress) {
  59         return Length.IPV6;
  60     }
  61
  62     @Override
  63     protected short getAfi() {
  64         return (short) AddressFamily.IpV6.getIntValue();
  65     }
  66
  67     @Override
  68     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  69         Ipv6Binary address = (Ipv6Binary) lispAddress.getAddress();
  70         buffer.put(address.getIpv6Binary().getValue());
  71     }
  72
  73     @Override
  74     protected void serializeData(ByteBuffer buffer, SimpleAddress address) {
  75         buffer.put(InetAddresses.forString(address.getIpAddress().getIpv6Address().getValue()).getAddress());
  76     }
  77
  78     @Override
  79     protected Eid deserializeEidData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  80         EidBuilder eb = new EidBuilder();
  81         eb.setAddressType(Ipv6BinaryAfi.class);
  82         eb.setVirtualNetworkId(getVni(ctx));
  83         eb.setAddress(new Ipv6BinaryBuilder().setIpv6Binary(deserializeData(buffer)).build());
  84         return eb.build();
  85     }
  86
  87     @Override
  88     protected Rloc deserializeRlocData(ByteBuffer buffer) {
  89         RlocBuilder rb = new RlocBuilder();
  90         rb.setAddressType(Ipv6BinaryAfi.class);
  91         rb.setVirtualNetworkId(null);
  92         rb.setAddress(new Ipv6BinaryBuilder().setIpv6Binary(deserializeData(buffer)).build());
  93         return rb.build();
  94     }
  95
  96     @Override
  97     protected SimpleAddress deserializeSimpleAddressData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  98         return new SimpleAddress(new IpAddress(deserializeDataNonBinary(buffer)));
  99     }
 100
 101     private static Ipv6AddressBinary deserializeData(ByteBuffer buffer) {
 102         byte[] ipBuffer = new byte[16];
 103         buffer.get(ipBuffer);
 104         return new Ipv6AddressBinary(ipBuffer);
 105     }
 106
 107     private static Ipv6Address deserializeDataNonBinary(ByteBuffer buffer) {
 108         byte[] ipBuffer = new byte[16];
 109         InetAddress address = null;
 110         buffer.get(ipBuffer);
 111         try {
 112             address = InetAddress.getByAddress(ipBuffer);
 113         } catch (UnknownHostException e) {
 114             LOG.debug("Unknown host {}", ipBuffer, e);
 115         }
 116         return new Ipv6Address(address.getHostAddress());
 117     }
 118
 119     protected interface Length {
 120         int IPV6 = 16;
 121     }
 122
 123 }