pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/object/PCEPUnreachedIPv6DestinationObjectParser.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.object;
   9
  10 import org.opendaylight.protocol.concepts.IPv6;
  11 import org.opendaylight.protocol.concepts.IPv6Address;
  12 import org.opendaylight.protocol.pcep.PCEPDeserializerException;
  13 import org.opendaylight.protocol.pcep.PCEPDocumentedException;
  14 import org.opendaylight.protocol.pcep.PCEPObject;
  15 import org.opendaylight.protocol.pcep.impl.PCEPObjectParser;
  16 import org.opendaylight.protocol.pcep.impl.Util;
  17 import org.opendaylight.protocol.pcep.object.PCEPUnreachedDestinationObject;
  18
  19 public class PCEPUnreachedIPv6DestinationObjectParser implements PCEPObjectParser {
  20
  21     /*
  22      * fields lengths and offsets for IPv6 in bytes
  23      */
  24     public static final int DEST6_F_LENGTH = 16;
  25
  26     public static final int DEST6_F_OFFSET = 0;
  27
  28     @Override
  29     public PCEPObject parse(byte[] bytes, boolean processed, boolean ignored) throws PCEPDeserializerException, PCEPDocumentedException {
  30         if (bytes == null)
  31             throw new IllegalArgumentException("Array of bytes is mandatory");
  32
  33         return new PCEPUnreachedDestinationObject<IPv6Address>(Util.parseAddresses(bytes, DEST6_F_OFFSET, IPv6.FAMILY, DEST6_F_LENGTH), processed, ignored);
  34     }
  35
  36     @Override
  37     public byte[] put(PCEPObject obj) {
  38         if (!(obj instanceof PCEPUnreachedDestinationObject))
  39             throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + obj.getClass() + ". Needed PCEPUnreachedDestinationObject.");
  40
  41         final PCEPUnreachedDestinationObject<?> uDObj = (PCEPUnreachedDestinationObject<?>) obj;
  42
  43         if (uDObj.getUnreachedDestinations().isEmpty())
  44             return new byte[0];
  45
  46         if (!(uDObj.getUnreachedDestinations().get(0) instanceof IPv6Address))
  47             throw new IllegalArgumentException("Wrong instance of NetworkAddress. Passed " + uDObj.getUnreachedDestinations().get(0).getClass()
  48                     + ". Needed IPv6Address");
  49
  50         final byte[] retBytes = new byte[DEST6_F_LENGTH * uDObj.getUnreachedDestinations().size()];
  51         Util.putAddresses(retBytes, DEST6_F_OFFSET, uDObj.getUnreachedDestinations(), DEST6_F_LENGTH);
  52         return retBytes;
  53     }
  54 }