of-extension/nx-ofjava/src/main/java/org/opendaylight/ovs/nx/ofjava/codec/action/MultipathCodec.java

   1 /*
   2  * Copyright (C) 2014 SDN Hub, LLC.
   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  * Authors : Srini Seetharaman
   9  */
  10
  11 package org.opendaylight.ovs.nx.ofjava.codec.action;
  12
  13 import io.netty.buffer.ByteBuf;
  14
  15 import org.opendaylight.openflowjava.nx.api.NiciraActionDeserializerKey;
  16 import org.opendaylight.openflowjava.nx.api.NiciraActionSerializerKey;
  17 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.ExperimenterIdAction;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev130731.actions.grouping.Action;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev130731.actions.grouping.ActionBuilder;
  21 import org.opendaylight.openflowjava.nx.codec.action.AbstractActionCodec;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.ovs.nx.action.rev140421.NxmNxMultipath;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.ovs.nx.action.rev140421.OfjNxMpAlgorithm;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.ovs.nx.action.rev140421.OfjNxHashFields;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.ovs.nx.action.rev140421.OfjAugNxAction;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.ovs.nx.action.rev140421.OfjAugNxActionBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.ovs.nx.action.rev140421.ofj.nx.action.multipath.grouping.ActionMultipath;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.ovs.nx.action.rev140421.ofj.nx.action.multipath.grouping.ActionMultipathBuilder;
  29
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 /**
  34  * Codec for the NX_MULTIPATH
  35  */
  36 public class MultipathCodec extends AbstractActionCodec {
  37     private static final Logger logger = LoggerFactory.getLogger(MultipathCodec.class);
  38
  39     public static final int LENGTH = 32;
  40     public static final byte NXAST_MULTIPATH_SUBTYPE = 10;
  41     public static final NiciraActionSerializerKey SERIALIZER_KEY =
  42             new NiciraActionSerializerKey(EncodeConstants.OF13_VERSION_ID, NxmNxMultipath.class);
  43     public static final NiciraActionDeserializerKey DESERIALIZER_KEY =
  44             new NiciraActionDeserializerKey(EncodeConstants.OF13_VERSION_ID, NXAST_MULTIPATH_SUBTYPE);
  45
  46     @Override
  47     public void serialize(Action input, ByteBuf outBuffer) {
  48         ActionMultipath action = input.getAugmentation(OfjAugNxAction.class).getActionMultipath();
  49         serializeHeader(LENGTH, NXAST_MULTIPATH_SUBTYPE, outBuffer);
  50
  51         outBuffer.writeShort(action.getFields().getIntValue());
  52         outBuffer.writeShort(action.getBasis().shortValue());
  53         outBuffer.writeZero(2);
  54
  55         outBuffer.writeShort(action.getAlgorithm().getIntValue());
  56         outBuffer.writeShort(action.getMaxLink().shortValue());
  57         outBuffer.writeInt(action.getArg().intValue());
  58         outBuffer.writeZero(2);
  59
  60         outBuffer.writeShort(action.getOfsNbits().shortValue());
  61         outBuffer.writeInt(action.getDst().intValue());
  62     }
  63
  64     @Override
  65     public Action deserialize(ByteBuf message) {
  66         ActionBuilder actionBuilder = deserializeHeader(message);
  67         ActionMultipathBuilder builder = new ActionMultipathBuilder();
  68         builder.setFields(OfjNxHashFields.forValue(message.readUnsignedShort()));
  69         builder.setBasis(message.readUnsignedShort());
  70         message.skipBytes(2); //two bytes
  71
  72         builder.setAlgorithm(OfjNxMpAlgorithm.forValue(message.readUnsignedShort()));
  73         builder.setMaxLink(message.readUnsignedShort());
  74         builder.setArg(message.readUnsignedInt());
  75         message.skipBytes(2); //two bytes
  76
  77         builder.setOfsNbits(message.readUnsignedShort());
  78         builder.setDst(message.readUnsignedInt());
  79
  80         OfjAugNxActionBuilder augNxActionBuilder = new OfjAugNxActionBuilder();
  81         augNxActionBuilder.setActionMultipath(builder.build());
  82         actionBuilder.addAugmentation(ExperimenterIdAction.class,
  83                                       createExperimenterIdAction(NxmNxMultipath.class));
  84         actionBuilder.addAugmentation(OfjAugNxAction.class, augNxActionBuilder.build());
  85         return actionBuilder.build();
  86     }
  87 }