pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/object/PCEPEndPointsIPv6ObjectParser.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.IPv6Address;
  11 import org.opendaylight.protocol.pcep.PCEPDeserializerException;
  12 import org.opendaylight.protocol.pcep.PCEPDocumentedException;
  13 import org.opendaylight.protocol.pcep.PCEPErrors;
  14 import org.opendaylight.protocol.pcep.PCEPObject;
  15 import org.opendaylight.protocol.pcep.impl.PCEPObjectParser;
  16 import org.opendaylight.protocol.pcep.object.PCEPEndPointsObject;
  17 import org.opendaylight.protocol.util.ByteArray;
  18
  19 /**
  20  * Parser for IPv6 {@link org.opendaylight.protocol.pcep.object.PCEPEndPointsObject
  21  * PCEPEndPointsObject}
  22  */
  23 public class PCEPEndPointsIPv6ObjectParser implements PCEPObjectParser {
  24
  25         public static final int SRC6_F_LENGTH = 16;
  26         public static final int DEST6_F_LENGT = 16;
  27
  28         public static final int SRC6_F_OFFSET = 0;
  29         public static final int DEST6_F_OFFSET = SRC6_F_OFFSET + SRC6_F_LENGTH;
  30
  31         @Override
  32         public PCEPObject parse(byte[] bytes, boolean processed, boolean ignored) throws PCEPDeserializerException, PCEPDocumentedException {
  33                 if (bytes == null)
  34                         throw new IllegalArgumentException("Array of bytes is mandatory");
  35                 if (bytes.length != SRC6_F_LENGTH + DEST6_F_LENGT)
  36                         throw new PCEPDeserializerException("Wrong length of array of bytes.");
  37
  38                 if (!processed)
  39                         throw new PCEPDocumentedException("Processed flag not set", PCEPErrors.P_FLAG_NOT_SET);
  40
  41                 return new PCEPEndPointsObject<IPv6Address>(
  42                                 new IPv6Address(ByteArray.subByte(bytes, SRC6_F_OFFSET, SRC6_F_LENGTH)),
  43                                 new IPv6Address(ByteArray.subByte(bytes, DEST6_F_OFFSET, DEST6_F_LENGT)));
  44         }
  45
  46         @Override
  47         public byte[] put(PCEPObject obj) {
  48                 if (!(obj instanceof PCEPEndPointsObject))
  49                         throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + obj.getClass() + ". Needed PCEPEndPointsObject.");
  50
  51                 final PCEPEndPointsObject<?> ePObj = (PCEPEndPointsObject<?>) obj;
  52
  53                 if (!(ePObj.getSourceAddress() instanceof IPv6Address))
  54                         throw new IllegalArgumentException("Wrong instance of NetworkAddress. Passed " + ePObj.getSourceAddress().getClass() + ". Needed IPv6Address");
  55
  56                 final byte[] retBytes = new byte[SRC6_F_LENGTH + DEST6_F_LENGT];
  57                 ByteArray.copyWhole(((IPv6Address) ePObj.getSourceAddress()).getAddress(), retBytes, SRC6_F_OFFSET);
  58                 ByteArray.copyWhole(((IPv6Address) ePObj.getDestinationAddress()).getAddress(), retBytes, DEST6_F_OFFSET);
  59
  60                 return retBytes;
  61         }
  62
  63 }