pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/object/PCEPObjectiveFunctionObjectParser.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.pcep.PCEPDeserializerException;
  11 import org.opendaylight.protocol.pcep.PCEPDocumentedException;
  12 import org.opendaylight.protocol.pcep.impl.message.AbstractObjectWithTlvsParser;
  13 import org.opendaylight.protocol.pcep.spi.TlvHandlerRegistry;
  14 import org.opendaylight.protocol.util.ByteArray;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.OfId;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.OfObject;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.OfBuilder;
  21
  22 /**
  23  * Parser for {@link OfObject}
  24  */
  25 public class PCEPObjectiveFunctionObjectParser extends AbstractObjectWithTlvsParser<OfBuilder> {
  26
  27         public static final int CLASS = 21;
  28
  29         public static final int TYPE = 1;
  30         /*
  31          * lengths of fields
  32          */
  33         public static final int OF_CODE_F_LENGTH = 2;
  34
  35         /*
  36          * offsets of fields
  37          */
  38         public static final int OF_CODE_F_OFFSET = 0;
  39         public static final int TLVS_OFFSET = OF_CODE_F_OFFSET + OF_CODE_F_LENGTH + 2; // added reserved field of size 2
  40
  41         public PCEPObjectiveFunctionObjectParser(final TlvHandlerRegistry tlvReg) {
  42                 super(tlvReg);
  43         }
  44
  45         @Override
  46         public OfObject parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException, PCEPDocumentedException {
  47                 if (bytes == null || bytes.length == 0) {
  48                         throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
  49                 }
  50
  51                 final OfBuilder builder = new OfBuilder();
  52
  53                 parseTlvs(builder, ByteArray.cutBytes(bytes, TLVS_OFFSET));
  54
  55                 builder.setIgnore(header.isIgnore());
  56                 builder.setProcessingRule(header.isProcessingRule());
  57                 builder.setCode(new OfId(ByteArray.bytesToInt(ByteArray.subByte(bytes, OF_CODE_F_OFFSET, OF_CODE_F_LENGTH)) & 0xFFFF));
  58
  59                 return builder.build();
  60         }
  61
  62         @Override
  63         public void addTlv(final OfBuilder builder, final Tlv tlv) {
  64                 // No tlvs defined
  65         }
  66
  67         @Override
  68         public byte[] serializeObject(final Object object) {
  69                 if (!(object instanceof OfObject)) {
  70                         throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass()
  71                                         + ". Needed PCEPObjectiveFunction.");
  72                 }
  73
  74                 final OfObject specObj = (OfObject) object;
  75                 // FIXME
  76                 // final byte[] tlvs = PCEPTlvParser.put(specObj.getTlvs());
  77                 final byte[] retBytes = new byte[TLVS_OFFSET + 0];
  78
  79                 // ByteArray.copyWhole(tlvs, retBytes, TLVS_OFFSET);
  80
  81                 ByteArray.copyWhole(ByteArray.shortToBytes(specObj.getCode().getValue().shortValue()), retBytes, OF_CODE_F_OFFSET);
  82
  83                 return retBytes;
  84         }
  85
  86         @Override
  87         public int getObjectType() {
  88                 return TYPE;
  89         }
  90
  91         @Override
  92         public int getObjectClass() {
  93                 return CLASS;
  94         }
  95 }