pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/subobject/XROUnnumberedInterfaceSubobjectParser.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.ExcludeRouteSubobject;
  12 import org.opendaylight.protocol.pcep.subobject.XROUnnumberedInterfaceSubobject;
  13 import org.opendaylight.protocol.util.ByteArray;
  14
  15 /**
  16  * Parser for {@link org.opendaylight.protocol.pcep.subobject.XROUnnumberedInterfaceSubobject
  17  * XROUnnumberedInterfaceSubobject}
  18  */
  19 public class XROUnnumberedInterfaceSubobjectParser {
  20         public static final int ATTRIBUTE_LENGTH = 1;
  21         public static final int ROUTER_ID_NUMBER_LENGTH = 4;
  22         public static final int INTERFACE_ID_NUMBER_LENGTH = 4;
  23
  24         public static final int ATTRIBUTE_OFFSET = 1;// added reserved field of size 1
  25         public static final int ROUTER_ID_NUMBER_OFFSET = ATTRIBUTE_OFFSET + ATTRIBUTE_LENGTH;
  26         public static final int INTERFACE_ID_NUMBER_OFFSET = ROUTER_ID_NUMBER_OFFSET + ROUTER_ID_NUMBER_LENGTH;
  27
  28         public static final int CONTENT_LENGTH = INTERFACE_ID_NUMBER_OFFSET + INTERFACE_ID_NUMBER_LENGTH;
  29
  30         public static XROUnnumberedInterfaceSubobject parse(final byte[] soContentsBytes, final boolean mandatory)
  31                         throws PCEPDeserializerException {
  32                 if (soContentsBytes == null || soContentsBytes.length == 0)
  33                         throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
  34                 if (soContentsBytes.length != CONTENT_LENGTH)
  35                         throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + soContentsBytes.length + "; Expected: "
  36                                         + CONTENT_LENGTH + ".");
  37
  38                 // return new XROUnnumberedInterfaceSubobject(new IPv4Address(
  39                 // ByteArray.subByte(soContentsBytes, ROUTER_ID_NUMBER_OFFSET, ROUTER_ID_NUMBER_LENGTH)), new
  40                 // UnnumberedInterfaceIdentifier(
  41                 // UnsignedInts.toLong(ByteArray.bytesToInt(ByteArray.subByte(soContentsBytes, INTERFACE_ID_NUMBER_OFFSET,
  42                 // INTERFACE_ID_NUMBER_LENGTH)))),
  43                 // mandatory, XROSubobjectAttributeMapping.getInstance().getFromAttributeIdentifier((short)
  44                 // (soContentsBytes[ATTRIBUTE_OFFSET] & 0xFF)));
  45                 return null;
  46         }
  47
  48         public static byte[] put(final ExcludeRouteSubobject objToSerialize) {
  49                 if (!(objToSerialize instanceof XROUnnumberedInterfaceSubobject))
  50                         throw new IllegalArgumentException("Unknown PCEPXROSubobject instance. Passed " + objToSerialize.getClass()
  51                                         + ". Needed XROUnnumberedInterfaceSubobject.");
  52
  53                 byte[] retBytes;
  54                 retBytes = new byte[CONTENT_LENGTH];
  55                 final XROUnnumberedInterfaceSubobject specObj = (XROUnnumberedInterfaceSubobject) objToSerialize;
  56
  57                 retBytes[ATTRIBUTE_OFFSET] = (byte) XROSubobjectAttributeMapping.getInstance().getFromAttributeEnum(specObj.getAttribute());
  58                 ByteArray.copyWhole(specObj.getRouterID().getAddress(), retBytes, ROUTER_ID_NUMBER_OFFSET);
  59                 System.arraycopy(ByteArray.longToBytes(specObj.getInterfaceID().getInterfaceId()), Long.SIZE / Byte.SIZE
  60                                 - INTERFACE_ID_NUMBER_LENGTH, retBytes, INTERFACE_ID_NUMBER_OFFSET, INTERFACE_ID_NUMBER_LENGTH);
  61
  62                 return retBytes;
  63         }
  64 }