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

   1 /*
   2  * Copyright (c) 2014 Contextream, Inc. and others.  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.nio.ByteBuffer;
  11
  12 import org.opendaylight.lispflowmapping.lisp.type.LispCanonicalAddressFormatEnum;
  13 import org.opendaylight.lispflowmapping.lisp.util.ByteUtil;
  14 import org.opendaylight.lispflowmapping.lisp.util.MaskUtil;
  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.lisp.address.types.rev151105.LispAddress;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SourceDestKeyLcaf;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.Address;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.SourceDestKey;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.source.dest.key.SourceDestKeyBuilder;
  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
  27 public class SourceDestKeySerializer extends LcafSerializer {
  28
  29     private static final SourceDestKeySerializer INSTANCE = new SourceDestKeySerializer();
  30
  31     // Private constructor prevents instantiation from other classes
  32     private SourceDestKeySerializer() {
  33     }
  34
  35     public static SourceDestKeySerializer getInstance() {
  36         return INSTANCE;
  37     }
  38
  39     @Override
  40     protected byte getLcafType() {
  41         return LispCanonicalAddressFormatEnum.SOURCE_DEST.getLispCode();
  42     }
  43
  44     @Override
  45     protected short getLcafLength(LispAddress lispAddress) {
  46         SourceDestKey sdk = (SourceDestKey) lispAddress.getAddress();
  47         return (short) (Length.ALL_FIELDS
  48                 + SimpleAddressSerializer.getInstance().getAddressSize(new SimpleAddress(sdk.getSourceDestKey().getSource()))
  49                 + SimpleAddressSerializer.getInstance().getAddressSize(new SimpleAddress(sdk.getSourceDestKey().getDest())));
  50     }
  51
  52     @Override
  53     protected short getAfi() {
  54         return (short) AddressFamily.LispCanonicalAddressFormat.getIntValue();
  55     }
  56
  57     @Override
  58     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  59         SourceDestKey sdk = (SourceDestKey) lispAddress.getAddress();
  60         buffer.putShort((short) 0);
  61         buffer.put((byte) MaskUtil.getMaskForIpPrefix(sdk.getSourceDestKey().getSource()));
  62         buffer.put((byte) MaskUtil.getMaskForIpPrefix(sdk.getSourceDestKey().getDest()));
  63         SimpleAddressSerializer.getInstance().serialize(buffer, new SimpleAddress(sdk.getSourceDestKey().getSource()));
  64         SimpleAddressSerializer.getInstance().serialize(buffer, new SimpleAddress(sdk.getSourceDestKey().getDest()));
  65     }
  66
  67     @Override
  68     protected Eid deserializeLcafEidData(ByteBuffer buffer, byte res2, short length, LispAddressSerializerContext ctx) {
  69         EidBuilder eb = new EidBuilder();
  70         eb.setAddressType(SourceDestKeyLcaf.class);
  71         eb.setVirtualNetworkId(getVni(ctx));
  72         eb.setAddress(deserializeData(buffer, ctx));
  73         return eb.build();
  74     }
  75
  76     @Override
  77     protected Rloc deserializeLcafRlocData(ByteBuffer buffer, byte res2, short length, LispAddressSerializerContext ctx) {
  78         RlocBuilder rb = new RlocBuilder();
  79         rb.setAddressType(SourceDestKeyLcaf.class);
  80         rb.setVirtualNetworkId(null);
  81         rb.setAddress(deserializeData(buffer, ctx));
  82         return rb.build();
  83     }
  84
  85     private Address deserializeData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  86         buffer.getShort();  // reserved bytes
  87         short srcMaskLength = (short) ByteUtil.getUnsignedByte(buffer);
  88         short dstMaskLength = (short) ByteUtil.getUnsignedByte(buffer);
  89         ctx.setMaskLen(srcMaskLength);
  90         SimpleAddress srcAddress = SimpleAddressSerializer.getInstance().deserialize(buffer, ctx);
  91         ctx.setMaskLen(dstMaskLength);
  92         SimpleAddress dstAddress = SimpleAddressSerializer.getInstance().deserialize(buffer, ctx);
  93         SourceDestKeyBuilder sdb = new SourceDestKeyBuilder();
  94         sdb.setSource(srcAddress.getIpPrefix());
  95         sdb.setDest(dstAddress.getIpPrefix());
  96         return new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.SourceDestKeyBuilder()
  97                 .setSourceDestKey(sdb.build()).build();
  98     }
  99
 100     private interface Length {
 101         int SOURCE_MASK_LENGTH = 1;
 102         int DEST_MASK_LENGTH = 1;
 103         int RESERVED = 2;
 104         int ALL_FIELDS = SOURCE_MASK_LENGTH + DEST_MASK_LENGTH + RESERVED;
 105     }
 106 }