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
  12 import org.opendaylight.lispflowmapping.lisp.type.LispCanonicalAddressFormatEnum;
  13 import org.opendaylight.lispflowmapping.lisp.util.ByteUtil;
  14 import org.opendaylight.lispflowmapping.lisp.util.NumberUtil;
  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.ServicePathIdType;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.ServicePathLcaf;
  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.ServicePath;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.service.path.ServicePathBuilder;
  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
  25 /**
  26  * Class to (de)serialize Service Path data type.
  27  *
  28  * @author Lorand Jakab
  29  *
  30  */
  31 public class ServicePathSerializer extends LcafSerializer {
  32
  33     private static final ServicePathSerializer INSTANCE = new ServicePathSerializer();
  34
  35     // Private constructor prevents instantiation from other classes
  36     private ServicePathSerializer() {
  37     }
  38
  39     public static ServicePathSerializer getInstance() {
  40         return INSTANCE;
  41     }
  42
  43     @Override
  44     protected byte getLcafType() {
  45         return LispCanonicalAddressFormatEnum.SERVICE_PATH.getLispCode();
  46     }
  47
  48     @Override
  49     protected short getLcafLength(LispAddress lispAddress) {
  50         return (short) (Length.SPI + Length.SI);
  51     }
  52
  53     @Override
  54     protected short getAfi() {
  55         return (short) AddressFamily.LispCanonicalAddressFormat.getIntValue();
  56     }
  57
  58     @Override
  59     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  60         ServicePath sp = (ServicePath) lispAddress.getAddress();
  61         buffer.put(ByteUtil.partialIntToByteArray(NumberUtil.asInt(
  62                 sp.getServicePath().getServicePathId().getValue().intValue()), Length.SPI));
  63         buffer.put((byte) NumberUtil.asShort(sp.getServicePath().getServiceIndex()));
  64     }
  65
  66     @Override
  67     protected Eid deserializeLcafEidData(ByteBuffer buffer, byte res2, short length, LispAddressSerializerContext ctx) {
  68         EidBuilder eb = new EidBuilder();
  69         eb.setAddressType(ServicePathLcaf.class);
  70         eb.setVirtualNetworkId(getVni(ctx));
  71         eb.setAddress(deserializeData(buffer));
  72         return eb.build();
  73     }
  74
  75     private Address deserializeData(ByteBuffer buffer) {
  76         ServicePathBuilder spb = new ServicePathBuilder();
  77         byte[] spi = new byte[3];
  78         buffer.get(spi);
  79         spb.setServicePathId(new ServicePathIdType((long) ByteUtil.getPartialInt(spi)));
  80         spb.setServiceIndex((short) ByteUtil.getUnsignedByte(buffer));
  81         return new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105
  82                 .lisp.address.address.ServicePathBuilder().setServicePath(spb.build()).build();
  83     }
  84
  85     private interface Length {
  86         int SPI = 3;
  87         int SI = 1;
  88     }
  89 }