openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/factories/OF10QueueGetConfigReplyMessageFactory.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
   9 package org.opendaylight.openflowjava.protocol.impl.deserialization.factories;
  10
  11 import io.netty.buffer.ByteBuf;
  12
  13 import java.util.ArrayList;
  14 import java.util.List;
  15
  16 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  17 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.RateQueueProperty;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.RateQueuePropertyBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortNumber;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.QueueId;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.QueueProperties;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetQueueConfigOutput;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetQueueConfigOutputBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.get.config.reply.Queues;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.get.config.reply.QueuesBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.property.header.QueueProperty;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.property.header.QueuePropertyBuilder;
  29
  30 /**
  31  * Translates QueueGetConfigReply messages (OpenFlow v1.0)
  32  * @author michal.polkorab
  33  */
  34 public class OF10QueueGetConfigReplyMessageFactory implements OFDeserializer<GetQueueConfigOutput> {
  35
  36     private static final byte PADDING_IN_QUEUE_GET_CONFIG_REPLY_HEADER = 6;
  37     private static final byte PADDING_IN_PACKET_QUEUE_HEADER = 2;
  38     private static final byte PADDING_IN_QUEUE_PROPERTY_HEADER = 4;
  39     private static final byte PADDING_IN_RATE_QUEUE_PROPERTY = 6;
  40     private static final byte PACKET_QUEUE_HEADER_LENGTH = 8;
  41
  42     @Override
  43     public GetQueueConfigOutput deserialize(ByteBuf rawMessage) {
  44         GetQueueConfigOutputBuilder builder = new GetQueueConfigOutputBuilder();
  45         builder.setVersion((short) EncodeConstants.OF10_VERSION_ID);
  46         builder.setXid((rawMessage.readUnsignedInt()));
  47         builder.setPort(new PortNumber((long) rawMessage.readUnsignedShort()));
  48         rawMessage.skipBytes(PADDING_IN_QUEUE_GET_CONFIG_REPLY_HEADER);
  49         builder.setQueues(createQueuesList(rawMessage));
  50         return builder.build();
  51     }
  52
  53     private static List<Queues> createQueuesList(ByteBuf input){
  54         List<Queues> queuesList = new ArrayList<>();
  55         while (input.readableBytes() > 0) {
  56             QueuesBuilder queueBuilder = new QueuesBuilder();
  57             queueBuilder.setQueueId(new QueueId(input.readUnsignedInt()));
  58             int length = input.readUnsignedShort();
  59             input.skipBytes(PADDING_IN_PACKET_QUEUE_HEADER);
  60             queueBuilder.setQueueProperty(createPropertiesList(input, length - PACKET_QUEUE_HEADER_LENGTH));
  61             queuesList.add(queueBuilder.build());
  62         }
  63         return queuesList;
  64     }
  65
  66     private static List<QueueProperty> createPropertiesList(ByteBuf input, int length){
  67         int propertiesLength = length;
  68         List<QueueProperty> propertiesList = new ArrayList<>();
  69         while (propertiesLength > 0) {
  70             QueuePropertyBuilder propertiesBuilder = new QueuePropertyBuilder();
  71             QueueProperties property = QueueProperties.forValue(input.readUnsignedShort());
  72             propertiesBuilder.setProperty(property);
  73             propertiesLength -= input.readUnsignedShort();
  74             input.skipBytes(PADDING_IN_QUEUE_PROPERTY_HEADER);
  75             if (property.equals(QueueProperties.OFPQTMINRATE)) {
  76                 RateQueuePropertyBuilder rateBuilder = new RateQueuePropertyBuilder();
  77                 rateBuilder.setRate(input.readUnsignedShort());
  78                 propertiesBuilder.addAugmentation(RateQueueProperty.class, rateBuilder.build());
  79                 input.skipBytes(PADDING_IN_RATE_QUEUE_PROPERTY);
  80             }
  81             propertiesList.add(propertiesBuilder.build());
  82         }
  83         return propertiesList;
  84     }
  85 }