pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/object/PCEPExcludeRouteObjectParser.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.spi.XROSubobjectHandlerRegistry;
  13 import org.opendaylight.protocol.util.ByteArray;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ExcludeRouteObject;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ExcludeRouteObject.Flags;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.ObjectHeader;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.svec.XroBuilder;
  19
  20 import com.google.common.primitives.UnsignedBytes;
  21
  22 /**
  23  * Parser for {@link ExcludeRouteObject}
  24  */
  25 public final class PCEPExcludeRouteObjectParser extends AbstractXROWithSubobjectsParser {
  26
  27         public static final int CLASS = 7;
  28
  29         public static final int TYPE = 1;
  30
  31         private static final int FLAGS_OFFSET = 3;
  32
  33         public PCEPExcludeRouteObjectParser(final XROSubobjectHandlerRegistry registry) {
  34                 super(registry);
  35         }
  36
  37         @Override
  38         public ExcludeRouteObject parseObject(final ObjectHeader header, final byte[] bytes) throws PCEPDeserializerException,
  39                         PCEPDocumentedException {
  40                 if (bytes == null || bytes.length == 0) {
  41                         throw new IllegalArgumentException("Byte array is mandatory. Can't be null or empty.");
  42                 }
  43                 final XroBuilder builder = new XroBuilder();
  44                 builder.setIgnore(header.isIgnore());
  45                 builder.setProcessingRule(header.isProcessingRule());
  46                 builder.setFlags(new Flags(UnsignedBytes.toInt(bytes[FLAGS_OFFSET]) != 0));
  47                 builder.setSubobjects(parseSubobjects(ByteArray.cutBytes(bytes, FLAGS_OFFSET + 1)));
  48                 return builder.build();
  49         }
  50
  51         @Override
  52         public byte[] serializeObject(final Object object) {
  53                 if (!(object instanceof ExcludeRouteObject)) {
  54                         throw new IllegalArgumentException("Wrong instance of PCEPObject. Passed " + object.getClass() + ". Needed ExcludeRouteObject.");
  55                 }
  56                 final ExcludeRouteObject obj = (ExcludeRouteObject) object;
  57                 assert !(obj.getSubobjects().isEmpty()) : "Empty Excluded Route Object.";
  58                 final byte[] bytes = serializeSubobject(obj.getSubobjects());
  59                 final byte[] result = new byte[FLAGS_OFFSET + 1 + bytes.length];
  60                 if (obj.getFlags().isFail()) {
  61                         result[FLAGS_OFFSET] = 1;
  62                 }
  63                 ByteArray.copyWhole(bytes, result, FLAGS_OFFSET + 1);
  64                 return result;
  65         }
  66
  67         @Override
  68         public int getObjectType() {
  69                 return TYPE;
  70         }
  71
  72         @Override
  73         public int getObjectClass() {
  74                 return CLASS;
  75         }
  76 }