pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/subobject/RROUnnumberedInterfaceSubobjectParser.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, 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.protocol.pcep.impl.subobject;
   9
  10 import org.opendaylight.protocol.pcep.PCEPDeserializerException;
  11 import org.opendaylight.protocol.pcep.subobject.RROUnnumberedInterfaceSubobject;
  12 import org.opendaylight.protocol.pcep.subobject.ReportedRouteSubobject;
  13 import org.opendaylight.protocol.util.ByteArray;
  14
  15 /**
  16  * Parser for {@link org.opendaylight.protocol.pcep.subobject.RROUnnumberedInterfaceSubobject
  17  * RROUnnumberedInterfaceSubobject}
  18  */
  19 public class RROUnnumberedInterfaceSubobjectParser {
  20         public static final int ROUTER_ID_NUMBER_LENGTH = 4;
  21         public static final int INTERFACE_ID_NUMBER_LENGTH = 4;
  22
  23         public static final int ROUTER_ID_NUMBER_OFFSET = 2; // added reserved field of size 2
  24         public static final int INTERFACE_ID_NUMBER_OFFSET = ROUTER_ID_NUMBER_OFFSET + ROUTER_ID_NUMBER_LENGTH;
  25
  26         public static final int CONTENT_LENGTH = INTERFACE_ID_NUMBER_OFFSET + INTERFACE_ID_NUMBER_LENGTH;
  27
  28         public static RROUnnumberedInterfaceSubobject parse(final byte[] soContentsBytes) throws PCEPDeserializerException {
  29                 if (soContentsBytes == null || soContentsBytes.length == 0)
  30                         throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
  31                 if (soContentsBytes.length != CONTENT_LENGTH)
  32                         throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + soContentsBytes.length + "; Expected: "
  33                                         + CONTENT_LENGTH + ".");
  34
  35                 // return new RROUnnumberedInterfaceSubobject(new IPv4Address(
  36                 // ByteArray.subByte(soContentsBytes, ROUTER_ID_NUMBER_OFFSET, ROUTER_ID_NUMBER_LENGTH)), new
  37                 // UnnumberedInterfaceIdentifier(
  38                 // UnsignedInts.toLong(ByteArray.bytesToInt(ByteArray.subByte(soContentsBytes, INTERFACE_ID_NUMBER_OFFSET,
  39                 // INTERFACE_ID_NUMBER_LENGTH)))));
  40                 return null;
  41         }
  42
  43         public static byte[] put(final ReportedRouteSubobject objToSerialize) {
  44                 if (!(objToSerialize instanceof RROUnnumberedInterfaceSubobject))
  45                         throw new IllegalArgumentException("Unknown ReportedRouteSubobject instance. Passed " + objToSerialize.getClass()
  46                                         + ". Needed RROUnnumberedInterfaceSubobject.");
  47
  48                 byte[] retBytes;
  49                 retBytes = new byte[CONTENT_LENGTH];
  50                 final RROUnnumberedInterfaceSubobject specObj = (RROUnnumberedInterfaceSubobject) objToSerialize;
  51
  52                 ByteArray.copyWhole(specObj.getRouterID().getAddress(), retBytes, ROUTER_ID_NUMBER_OFFSET);
  53                 System.arraycopy(ByteArray.longToBytes(specObj.getInterfaceID().getInterfaceId()), Long.SIZE / Byte.SIZE
  54                                 - INTERFACE_ID_NUMBER_LENGTH, retBytes, INTERFACE_ID_NUMBER_OFFSET, INTERFACE_ID_NUMBER_LENGTH);
  55
  56                 return retBytes;
  57         }
  58 }