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
  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.IetfInetUtil;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.Ipv4Afi;
  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.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv4;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv4Builder;
  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 String representation.
  32  *
  33  * @author Lorand Jakab
  34  *
  35  */
  36 public final class Ipv4Serializer extends LispAddressSerializer {
  37
  38     protected static final Logger LOG = LoggerFactory.getLogger(Ipv4Serializer.class);
  39
  40     private static final Ipv4Serializer INSTANCE = new Ipv4Serializer();
  41
  42     // Private constructor prevents instantiation from other classes
  43     private Ipv4Serializer() {
  44     }
  45
  46     public static Ipv4Serializer getInstance() {
  47         return INSTANCE;
  48     }
  49
  50     @Override
  51     public int getAddressSize(LispAddress lispAddress) {
  52         return Length.IPV4;
  53     }
  54
  55     @Override
  56     public int getAddressSize(SimpleAddress simpleAddress) {
  57         return Length.IPV4;
  58     }
  59
  60     @Override
  61     protected short getAfi() {
  62         return (short) AddressFamily.IpV4.getIntValue();
  63     }
  64
  65     @Override
  66     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  67         Ipv4 address = (Ipv4) lispAddress.getAddress();
  68         try {
  69             buffer.put(Inet4Address.getByName(address.getIpv4().getValue()).getAddress());
  70         } catch (UnknownHostException e) {
  71             LOG.debug("Unknown host {}", address.getIpv4().getValue(), e);
  72         }
  73     }
  74
  75     @Override
  76     protected void serializeData(ByteBuffer buffer, SimpleAddress address) {
  77         try {
  78             buffer.put(Inet4Address.getByName(address.getIpAddress().getIpv4Address().getValue()).getAddress());
  79         } catch (UnknownHostException e) {
  80             LOG.debug("Unknown host {}", address.getIpAddress().getIpv4Address().getValue(), e);
  81         }
  82     }
  83
  84     @Override
  85     protected Eid deserializeEidData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  86         EidBuilder eb = new EidBuilder();
  87         eb.setAddressType(Ipv4Afi.class);
  88         eb.setVirtualNetworkId(getVni(ctx));
  89         eb.setAddress(new Ipv4Builder().setIpv4(deserializeData(buffer)).build());
  90         return eb.build();
  91     }
  92
  93     @Override
  94     protected Rloc deserializeRlocData(ByteBuffer buffer) {
  95         RlocBuilder rb = new RlocBuilder();
  96         rb.setAddressType(Ipv4Afi.class);
  97         rb.setVirtualNetworkId(null);
  98         rb.setAddress(new Ipv4Builder().setIpv4(deserializeData(buffer)).build());
  99         return rb.build();
 100     }
 101
 102     @Override
 103     protected SimpleAddress deserializeSimpleAddressData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
 104         return new SimpleAddress(new IpAddress(deserializeData(buffer)));
 105     }
 106
 107     private static Ipv4Address deserializeData(ByteBuffer buffer) {
 108         byte[] ipBuffer = new byte[4];
 109         buffer.get(ipBuffer);
 110         return new Ipv4Address(IetfInetUtil.INSTANCE.ipv4AddressFor(ipBuffer));
 111     }
 112
 113     protected interface Length {
 114         int IPV4 = 4;
 115     }
 116
 117 }