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.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.Ipv4Afi;
  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.Ipv4;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv4Builder;
  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 IPv4 addresses from/to String representation.
  31  *
  32  * @author Lorand Jakab
  33  */
  34 public final class Ipv4Serializer extends LispAddressSerializer {
  35
  36     protected static final Logger LOG = LoggerFactory.getLogger(Ipv4Serializer.class);
  37
  38     private static final Ipv4Serializer INSTANCE = new Ipv4Serializer();
  39
  40     // Private constructor prevents instantiation from other classes
  41     private Ipv4Serializer() {
  42     }
  43
  44     public static Ipv4Serializer getInstance() {
  45         return INSTANCE;
  46     }
  47
  48     @Override
  49     public int getAddressSize(LispAddress lispAddress) {
  50         return Length.IPV4;
  51     }
  52
  53     @Override
  54     public int getAddressSize(SimpleAddress simpleAddress) {
  55         return Length.IPV4;
  56     }
  57
  58     @Override
  59     protected short getAfi() {
  60         return (short) AddressFamily.IpV4.getIntValue();
  61     }
  62
  63     @Override
  64     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  65         Ipv4 address = (Ipv4) lispAddress.getAddress();
  66         try {
  67             buffer.put(Inet4Address.getByName(address.getIpv4().getValue()).getAddress());
  68         } catch (UnknownHostException e) {
  69             LOG.debug("Unknown host {}", address.getIpv4().getValue(), e);
  70         }
  71     }
  72
  73     @Override
  74     protected void serializeData(ByteBuffer buffer, SimpleAddress address) {
  75         try {
  76             buffer.put(Inet4Address.getByName(address.getIpAddress().getIpv4Address().getValue()).getAddress());
  77         } catch (UnknownHostException e) {
  78             LOG.debug("Unknown host {}", address.getIpAddress().getIpv4Address().getValue(), e);
  79         }
  80     }
  81
  82     @Override
  83     protected Eid deserializeEidData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  84         EidBuilder eb = new EidBuilder();
  85         eb.setAddressType(Ipv4Afi.VALUE);
  86         eb.setVirtualNetworkId(getVni(ctx));
  87         eb.setAddress(new Ipv4Builder().setIpv4(deserializeData(buffer)).build());
  88         return eb.build();
  89     }
  90
  91     @Override
  92     protected Rloc deserializeRlocData(ByteBuffer buffer) {
  93         RlocBuilder rb = new RlocBuilder();
  94         rb.setAddressType(Ipv4Afi.VALUE);
  95         rb.setVirtualNetworkId(null);
  96         rb.setAddress(new Ipv4Builder().setIpv4(deserializeData(buffer)).build());
  97         return rb.build();
  98     }
  99
 100     @Override
 101     protected SimpleAddress deserializeSimpleAddressData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
 102         return new SimpleAddress(new IpAddress(deserializeData(buffer)));
 103     }
 104
 105     private static Ipv4Address deserializeData(ByteBuffer buffer) {
 106         byte[] ipBuffer = new byte[4];
 107         buffer.get(ipBuffer);
 108         return IetfInetUtil.INSTANCE.ipv4AddressFor(ipBuffer);
 109     }
 110
 111     protected interface Length {
 112         int IPV4 = 4;
 113     }
 114 }