pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/subobject/EROUnnumberedInterfaceSubobjectParser.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.EROUnnumberedInterfaceSubobject;
  12 import org.opendaylight.protocol.pcep.subobject.ExplicitRouteSubobject;
  13 import org.opendaylight.protocol.util.ByteArray;
  14
  15 /**
  16  * Parser for {@link org.opendaylight.protocol.pcep.subobject.EROUnnumberedInterfaceSubobject
  17  * EROUnnumberedInterfaceSubobject}
  18  */
  19 public class EROUnnumberedInterfaceSubobjectParser {
  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 EROUnnumberedInterfaceSubobject parse(final byte[] soContentsBytes, final boolean loose) 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 EROUnnumberedInterfaceSubobject(new IPv4Address(ByteArray.subByte(soContentsBytes,
  36                 // ROUTER_ID_NUMBER_OFFSET, ROUTER_ID_NUMBER_LENGTH)), new UnnumberedInterfaceIdentifier(
  37                 // UnsignedInts.toLong(ByteArray.bytesToInt(ByteArray.subByte(soContentsBytes, INTERFACE_ID_NUMBER_OFFSET,
  38                 // INTERFACE_ID_NUMBER_LENGTH)))), loose);
  39                 return null;
  40         }
  41
  42         public static byte[] put(final ExplicitRouteSubobject objToSerialize) {
  43                 if (!(objToSerialize instanceof EROUnnumberedInterfaceSubobject))
  44                         throw new IllegalArgumentException("Unknown ExplicitRouteSubobject instance. Passed " + objToSerialize.getClass()
  45                                         + ". Needed EROUnnumberedInterfaceSubobject.");
  46
  47                 byte[] retBytes;
  48                 retBytes = new byte[CONTENT_LENGTH];
  49                 final EROUnnumberedInterfaceSubobject specObj = (EROUnnumberedInterfaceSubobject) objToSerialize;
  50
  51                 ByteArray.copyWhole(specObj.getRouterID().getAddress(), retBytes, ROUTER_ID_NUMBER_OFFSET);
  52                 System.arraycopy(ByteArray.longToBytes(specObj.getInterfaceID().getInterfaceId()), Long.SIZE / Byte.SIZE
  53                                 - INTERFACE_ID_NUMBER_LENGTH, retBytes, INTERFACE_ID_NUMBER_OFFSET, INTERFACE_ID_NUMBER_LENGTH);
  54
  55                 return retBytes;
  56         }
  57 }