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 static org.opendaylight.yangtools.yang.common.UintConversions.fromJava;
  11
  12 import java.nio.ByteBuffer;
  13 import org.opendaylight.lispflowmapping.lisp.type.LispCanonicalAddressFormatEnum;
  14 import org.opendaylight.lispflowmapping.lisp.util.ByteUtil;
  15 import org.opendaylight.lispflowmapping.lisp.util.NumberUtil;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana.afn.safi.rev130704.AddressFamily;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.LispAddress;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.ServicePathIdType;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.ServicePathLcaf;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.Address;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.ServicePath;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.service.path.ServicePathBuilder;
  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
  26 /**
  27  * Class to (de)serialize Service Path data type.
  28  *
  29  * @author Lorand Jakab
  30  *
  31  */
  32 public final class ServicePathSerializer extends LcafSerializer {
  33
  34     private static final ServicePathSerializer INSTANCE = new ServicePathSerializer();
  35
  36     // Private constructor prevents instantiation from other classes
  37     private ServicePathSerializer() {
  38     }
  39
  40     public static ServicePathSerializer getInstance() {
  41         return INSTANCE;
  42     }
  43
  44     @Override
  45     protected byte getLcafType() {
  46         return LispCanonicalAddressFormatEnum.SERVICE_PATH.getLispCode();
  47     }
  48
  49     @Override
  50     protected short getLcafLength(LispAddress lispAddress) {
  51         return (short) (Length.SPI + Length.SI);
  52     }
  53
  54     @Override
  55     protected short getAfi() {
  56         return (short) AddressFamily.LispCanonicalAddressFormat.getIntValue();
  57     }
  58
  59     @Override
  60     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  61         ServicePath sp = (ServicePath) lispAddress.getAddress();
  62         buffer.put(ByteUtil.partialIntToByteArray(NumberUtil.asInt(
  63                 sp.getServicePath().getServicePathId().getValue().intValue()), Length.SPI));
  64         buffer.put((byte) NumberUtil.asShort(sp.getServicePath().getServiceIndex().toJava()));
  65     }
  66
  67     @Override
  68     protected Eid deserializeLcafEidData(ByteBuffer buffer, byte res2, short length, LispAddressSerializerContext ctx) {
  69         EidBuilder eb = new EidBuilder();
  70         eb.setAddressType(ServicePathLcaf.class);
  71         eb.setVirtualNetworkId(getVni(ctx));
  72         eb.setAddress(deserializeData(buffer));
  73         return eb.build();
  74     }
  75
  76     private Address deserializeData(ByteBuffer buffer) {
  77         ServicePathBuilder spb = new ServicePathBuilder();
  78         byte[] spi = new byte[3];
  79         buffer.get(spi);
  80         spb.setServicePathId(new ServicePathIdType(fromJava((long) ByteUtil.getPartialInt(spi))));
  81         spb.setServiceIndex(fromJava((short) ByteUtil.getUnsignedByte(buffer)));
  82         return new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105
  83                 .lisp.address.address.ServicePathBuilder().setServicePath(spb.build()).build();
  84     }
  85
  86     private interface Length {
  87         int SPI = 3;
  88         int SI = 1;
  89     }
  90 }