mappingservice/lisp-proto/src/main/java/org/opendaylight/lispflowmapping/lisp/serializer/address/Ipv4BinarySerializer.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 java.net.Inet4Address;
  11 import java.net.UnknownHostException;
  12 import java.nio.ByteBuffer;
  13 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana.afn.safi.rev130704.AddressFamily;
  14 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IetfInetUtil;
  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.Ipv4Address;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.LispAddress;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.inet.binary.types.rev160303.Ipv4AddressBinary;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.Ipv4BinaryAfi;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv4Binary;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv4BinaryBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.EidBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.Rloc;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.RlocBuilder;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 /**
  31  * Class to (de)serialize IPv4 addresses from/to byte[] representation.
  32  *
  33  * @author Lorand Jakab
  34  */
  35 public final class Ipv4BinarySerializer extends LispAddressSerializer {
  36
  37     protected static final Logger LOG = LoggerFactory.getLogger(Ipv4Serializer.class);
  38
  39     private static final Ipv4BinarySerializer INSTANCE = new Ipv4BinarySerializer();
  40
  41     // Private constructor prevents instantiation from other classes
  42     private Ipv4BinarySerializer() {
  43     }
  44
  45     public static Ipv4BinarySerializer getInstance() {
  46         return INSTANCE;
  47     }
  48
  49     @Override
  50     public int getAddressSize(LispAddress lispAddress) {
  51         return Length.IPV4;
  52     }
  53
  54     @Override
  55     public int getAddressSize(SimpleAddress simpleAddress) {
  56         return Length.IPV4;
  57     }
  58
  59     @Override
  60     protected short getAfi() {
  61         return (short) AddressFamily.IpV4.getIntValue();
  62     }
  63
  64     @Override
  65     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  66         Ipv4Binary address = (Ipv4Binary) lispAddress.getAddress();
  67         buffer.put(address.getIpv4Binary().getValue());
  68     }
  69
  70     @Override
  71     protected void serializeData(ByteBuffer buffer, SimpleAddress address) {
  72         try {
  73             buffer.put(Inet4Address.getByName(address.getIpAddress().getIpv4Address().getValue()).getAddress());
  74         } catch (UnknownHostException e) {
  75             LOG.debug("Unknown host {}", address.getIpAddress().getIpv4Address().getValue(), e);
  76         }
  77     }
  78
  79     @Override
  80     protected Eid deserializeEidData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  81         EidBuilder eb = new EidBuilder();
  82         eb.setAddressType(Ipv4BinaryAfi.VALUE);
  83         eb.setVirtualNetworkId(getVni(ctx));
  84         eb.setAddress(new Ipv4BinaryBuilder().setIpv4Binary(deserializeData(buffer)).build());
  85         return eb.build();
  86     }
  87
  88     @Override
  89     protected Rloc deserializeRlocData(ByteBuffer buffer) {
  90         RlocBuilder rb = new RlocBuilder();
  91         rb.setAddressType(Ipv4BinaryAfi.VALUE);
  92         rb.setVirtualNetworkId(null);
  93         rb.setAddress(new Ipv4BinaryBuilder().setIpv4Binary(deserializeData(buffer)).build());
  94         return rb.build();
  95     }
  96
  97     @Override
  98     protected SimpleAddress deserializeSimpleAddressData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  99         return new SimpleAddress(new IpAddress(deserializeDataNonBinary(buffer)));
 100     }
 101
 102     private static Ipv4AddressBinary deserializeData(ByteBuffer buffer) {
 103         byte[] ipBuffer = new byte[4];
 104         buffer.get(ipBuffer);
 105         return new Ipv4AddressBinary(ipBuffer);
 106     }
 107
 108     private static Ipv4Address deserializeDataNonBinary(ByteBuffer buffer) {
 109         byte[] ipBuffer = new byte[4];
 110         buffer.get(ipBuffer);
 111         return IetfInetUtil.INSTANCE.ipv4AddressFor(ipBuffer);
 112     }
 113
 114     protected interface Length {
 115         int IPV4 = 4;
 116     }
 117
 118 }