openflowjava/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/factories/FeaturesReplyMessageFactory.java

   1 /*
   2  * Copyright (c) 2013 Pantheon Technologies s.r.o. 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.openflowjava.protocol.impl.deserialization.factories;
   9
  10 import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint32;
  11 import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint64;
  12 import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint8;
  13
  14 import io.netty.buffer.ByteBuf;
  15 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  16 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.Capabilities;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutput;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutputBuilder;
  20
  21 /**
  22  * Translates FeaturesReply messages.
  23  *
  24  * @author michal.polkorab
  25  * @author timotej.kubas
  26  */
  27 public class FeaturesReplyMessageFactory implements OFDeserializer<GetFeaturesOutput> {
  28
  29     private static final byte PADDING_IN_FEATURES_REPLY_HEADER = 2;
  30
  31     @Override
  32     public GetFeaturesOutput deserialize(ByteBuf rawMessage) {
  33         GetFeaturesOutputBuilder builder = new GetFeaturesOutputBuilder()
  34                 .setVersion(EncodeConstants.OF_VERSION_1_3)
  35                 .setXid(readUint32(rawMessage))
  36                 .setDatapathId(readUint64(rawMessage))
  37                 .setBuffers(readUint32(rawMessage))
  38                 .setTables(readUint8(rawMessage))
  39                 .setAuxiliaryId(readUint8(rawMessage));
  40         rawMessage.skipBytes(PADDING_IN_FEATURES_REPLY_HEADER);
  41         builder.setCapabilities(createCapabilities(rawMessage.readUnsignedInt()));
  42         builder.setReserved(readUint32(rawMessage));
  43         return builder.build();
  44     }
  45
  46     private static Capabilities createCapabilities(long input) {
  47         final Boolean flowStats = (input & 1 << 0) != 0;
  48         final Boolean tableStats = (input & 1 << 1) != 0;
  49         final Boolean portStats = (input & 1 << 2) != 0;
  50         final Boolean groupStats = (input & 1 << 3) != 0;
  51         final Boolean ipReasm = (input & 1 << 5) != 0;
  52         final Boolean queueStats = (input & 1 << 6) != 0;
  53         final Boolean portBlocked = (input & 1 << 8) != 0;
  54         return new Capabilities(flowStats, groupStats, ipReasm,
  55                 portBlocked, portStats, queueStats, tableStats);
  56     }
  57
  58 }