mappingservice/lisp-proto/src/main/java/org/opendaylight/lispflowmapping/lisp/serializer/address/ServicePathSerializer.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.nio.ByteBuffer;
  11 import org.opendaylight.lispflowmapping.lisp.type.LispCanonicalAddressFormatEnum;
  12 import org.opendaylight.lispflowmapping.lisp.util.ByteUtil;
  13 import org.opendaylight.lispflowmapping.lisp.util.NumberUtil;
  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.lisp.address.types.rev151105.LispAddress;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.ServicePathIdType;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.ServicePathLcaf;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.Address;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.ServicePath;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.service.path.ServicePathBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.EidBuilder;
  23
  24 /**
  25  * Class to (de)serialize Service Path data type.
  26  *
  27  * @author Lorand Jakab
  28  *
  29  */
  30 public final class ServicePathSerializer extends LcafSerializer {
  31
  32     private static final ServicePathSerializer INSTANCE = new ServicePathSerializer();
  33
  34     // Private constructor prevents instantiation from other classes
  35     private ServicePathSerializer() {
  36     }
  37
  38     public static ServicePathSerializer getInstance() {
  39         return INSTANCE;
  40     }
  41
  42     @Override
  43     protected byte getLcafType() {
  44         return LispCanonicalAddressFormatEnum.SERVICE_PATH.getLispCode();
  45     }
  46
  47     @Override
  48     protected short getLcafLength(LispAddress lispAddress) {
  49         return (short) (Length.SPI + Length.SI);
  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         ServicePath sp = (ServicePath) lispAddress.getAddress();
  60         buffer.put(ByteUtil.partialIntToByteArray(NumberUtil.asInt(
  61                 sp.getServicePath().getServicePathId().getValue().intValue()), Length.SPI));
  62         buffer.put((byte) NumberUtil.asShort(sp.getServicePath().getServiceIndex()));
  63     }
  64
  65     @Override
  66     protected Eid deserializeLcafEidData(ByteBuffer buffer, byte res2, short length, LispAddressSerializerContext ctx) {
  67         EidBuilder eb = new EidBuilder();
  68         eb.setAddressType(ServicePathLcaf.class);
  69         eb.setVirtualNetworkId(getVni(ctx));
  70         eb.setAddress(deserializeData(buffer));
  71         return eb.build();
  72     }
  73
  74     private Address deserializeData(ByteBuffer buffer) {
  75         ServicePathBuilder spb = new ServicePathBuilder();
  76         byte[] spi = new byte[3];
  77         buffer.get(spi);
  78         spb.setServicePathId(new ServicePathIdType((long) ByteUtil.getPartialInt(spi)));
  79         spb.setServiceIndex((short) ByteUtil.getUnsignedByte(buffer));
  80         return new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105
  81                 .lisp.address.address.ServicePathBuilder().setServicePath(spb.build()).build();
  82     }
  83
  84     private interface Length {
  85         int SPI = 3;
  86         int SI = 1;
  87     }
  88 }