pcep/base-parser/src/main/java/org/opendaylight/protocol/pcep/parser/object/end/points/PCEPEndPointsIpv4ObjectParser.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.parser.object.end.points;
   9
  10 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeIpv4Address;
  11
  12 import com.google.common.base.Preconditions;
  13 import io.netty.buffer.ByteBuf;
  14 import io.netty.buffer.Unpooled;
  15 import org.opendaylight.protocol.pcep.spi.CommonObjectParser;
  16 import org.opendaylight.protocol.pcep.spi.ObjectUtil;
  17 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
  18 import org.opendaylight.protocol.pcep.spi.PCEPErrors;
  19 import org.opendaylight.protocol.pcep.spi.UnknownObject;
  20 import org.opendaylight.protocol.util.Ipv4Util;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Object;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.ObjectHeader;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.address.family.Ipv4CaseBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.address.family.ipv4._case.Ipv4;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.address.family.ipv4._case.Ipv4Builder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.object.EndpointsObj;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.object.EndpointsObjBuilder;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 /**
  32  * Parser for IPv4 {@link EndpointsObj}.
  33  */
  34 public class PCEPEndPointsIpv4ObjectParser extends CommonObjectParser {
  35
  36     private static final int CLASS = 4;
  37     private static final int TYPE = 1;
  38     private static final Logger LOG = LoggerFactory.getLogger(PCEPEndPointsIpv4ObjectParser.class);
  39
  40     public PCEPEndPointsIpv4ObjectParser() {
  41         super(CLASS, TYPE);
  42     }
  43
  44     public static void serializeObject(
  45         final Boolean processing,
  46         final Boolean ignore,
  47         final Ipv4 ipv4,
  48         final ByteBuf buffer) {
  49         final ByteBuf body = Unpooled.buffer(Ipv4Util.IP4_LENGTH + Ipv4Util.IP4_LENGTH);
  50         Preconditions.checkArgument(ipv4.getSourceIpv4Address() != null,
  51             "SourceIpv4Address is mandatory.");
  52         writeIpv4Address(ipv4.getSourceIpv4Address(), body);
  53         Preconditions.checkArgument(ipv4.getDestinationIpv4Address() != null,
  54             "DestinationIpv4Address is mandatory.");
  55         writeIpv4Address(ipv4.getDestinationIpv4Address(), body);
  56         ObjectUtil.formatSubobject(TYPE, CLASS, processing, ignore, body, buffer);
  57     }
  58
  59     @Override
  60     public Object parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException {
  61         Preconditions.checkArgument(bytes != null && bytes.isReadable(),
  62             "Array of bytes is mandatory. Can't be null or empty.");
  63         final EndpointsObjBuilder builder = new EndpointsObjBuilder();
  64         if (!header.isProcessingRule()) {
  65             LOG.debug("Processed bit not set on Endpoints OBJECT, ignoring it.");
  66             return new UnknownObject(PCEPErrors.P_FLAG_NOT_SET, builder.build());
  67         }
  68         if (bytes.readableBytes() != Ipv4Util.IP4_LENGTH * 2) {
  69             throw new PCEPDeserializerException("Wrong length of array of bytes.");
  70         }
  71         final Ipv4Builder ipv4bldr = new Ipv4Builder()
  72                 .setSourceIpv4Address(Ipv4Util.noZoneAddressForByteBuf(bytes))
  73                 .setDestinationIpv4Address(Ipv4Util.noZoneAddressForByteBuf(bytes));
  74         builder.setIgnore(header.isIgnore())
  75                 .setProcessingRule(header.isProcessingRule())
  76                 .setAddressFamily(new Ipv4CaseBuilder().setIpv4(ipv4bldr.build()).build());
  77         return builder.build();
  78     }
  79 }