mappingservice/lisp-proto/src/main/java/org/opendaylight/lispflowmapping/lisp/serializer/address/Ipv4Serializer.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.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana.afn.safi.rev130704.AddressFamily;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IetfInetUtil;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Address;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.Ipv4Afi;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.LispAddress;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv4;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv4Builder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.EidBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.Rloc;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.RlocBuilder;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 /**
  32  * @author Lorand Jakab
  33  *
  34  */
  35 public final class Ipv4Serializer extends LispAddressSerializer {
  36
  37     protected static final Logger LOG = LoggerFactory.getLogger(Ipv4Serializer.class);
  38
  39     private static final Ipv4Serializer INSTANCE = new Ipv4Serializer();
  40
  41     // Private constructor prevents instantiation from other classes
  42     private Ipv4Serializer() {
  43     }
  44
  45     public static Ipv4Serializer 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         Ipv4 address = (Ipv4) lispAddress.getAddress();
  67         try {
  68             buffer.put(Inet4Address.getByName(address.getIpv4().getValue()).getAddress());
  69         } catch (UnknownHostException e) {
  70             LOG.debug("Unknown host {}", address.getIpv4().getValue(), e);
  71         }
  72     }
  73
  74     @Override
  75     protected void serializeData(ByteBuffer buffer, SimpleAddress address) {
  76         try {
  77             buffer.put(Inet4Address.getByName(address.getIpAddress().getIpv4Address().getValue()).getAddress());
  78         } catch (UnknownHostException e) {
  79             LOG.debug("Unknown host {}", address.getIpAddress().getIpv4Address().getValue(), e);
  80         }
  81     }
  82
  83     @Override
  84     protected Eid deserializeEidData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  85         EidBuilder eb = new EidBuilder();
  86         eb.setAddressType(Ipv4Afi.class);
  87         eb.setVirtualNetworkId(getVni(ctx));
  88         eb.setAddress(new Ipv4Builder().setIpv4(deserializeData(buffer)).build());
  89         return eb.build();
  90     }
  91
  92     @Override
  93     protected Rloc deserializeRlocData(ByteBuffer buffer) {
  94         RlocBuilder rb = new RlocBuilder();
  95         rb.setAddressType(Ipv4Afi.class);
  96         rb.setVirtualNetworkId(null);
  97         rb.setAddress(new Ipv4Builder().setIpv4(deserializeData(buffer)).build());
  98         return rb.build();
  99     }
 100
 101     @Override
 102     protected SimpleAddress deserializeSimpleAddressData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
 103         return new SimpleAddress(new IpAddress(deserializeData(buffer)));
 104     }
 105
 106     private static Ipv4Address deserializeData(ByteBuffer buffer) {
 107         byte[] ipBuffer = new byte[4];
 108         InetAddress address = null;
 109         buffer.get(ipBuffer);
 110         return IetfInetUtil.INSTANCE.ipv4AddressFor(ipBuffer);
 111     }
 112
 113     protected interface Length {
 114         int IPV4 = 4;
 115     }
 116
 117 }