openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/factories/QueueGetConfigReplyMessageFactory.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.ExperimenterQueuePropertyBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.RateQueueProperty;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.RateQueuePropertyBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortNumber;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.QueueId;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.QueueProperties;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetQueueConfigOutput;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetQueueConfigOutputBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.get.config.reply.Queues;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.get.config.reply.QueuesBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.property.header.QueueProperty;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.property.header.QueuePropertyBuilder;
  30
  31 /**
  32  * Translates QueueGetConfigReply messages
  33  * @author timotej.kubas
  34  * @author michal.polkorab
  35  */
  36 public class QueueGetConfigReplyMessageFactory implements OFDeserializer<GetQueueConfigOutput> {
  37
  38     private static final byte PADDING_IN_QUEUE_GET_CONFIG_REPLY_HEADER = 4;
  39     private static final byte PADDING_IN_PACKET_QUEUE_HEADER = 6;
  40     private static final byte PADDING_IN_QUEUE_PROPERTY_HEADER = 4;
  41     private static final int PADDING_IN_RATE_QUEUE_PROPERTY = 6;
  42     private static final int PADDING_IN_EXPERIMENTER_QUEUE_PROPERTY = 4;
  43     private static final byte PACKET_QUEUE_LENGTH = 16;
  44
  45     @Override
  46     public GetQueueConfigOutput deserialize(ByteBuf rawMessage) {
  47         GetQueueConfigOutputBuilder builder = new GetQueueConfigOutputBuilder();
  48         builder.setVersion((short) EncodeConstants.OF13_VERSION_ID);
  49         builder.setXid((rawMessage.readUnsignedInt()));
  50         builder.setPort(new PortNumber(rawMessage.readUnsignedInt()));
  51         rawMessage.skipBytes(PADDING_IN_QUEUE_GET_CONFIG_REPLY_HEADER);
  52         builder.setQueues(createQueuesList(rawMessage));
  53         return builder.build();
  54     }
  55
  56     private static List<Queues> createQueuesList(ByteBuf input){
  57         List<Queues> queuesList = new ArrayList<>();
  58         while (input.readableBytes() > 0) {
  59             QueuesBuilder queueBuilder = new QueuesBuilder();
  60             queueBuilder.setQueueId(new QueueId(input.readUnsignedInt()));
  61             queueBuilder.setPort(new PortNumber(input.readUnsignedInt()));
  62             int length = input.readUnsignedShort();
  63             input.skipBytes(PADDING_IN_PACKET_QUEUE_HEADER);
  64             queueBuilder.setQueueProperty(createPropertiesList(input, length - PACKET_QUEUE_LENGTH));
  65             queuesList.add(queueBuilder.build());
  66         }
  67         return queuesList;
  68     }
  69
  70     private static List<QueueProperty> createPropertiesList(ByteBuf input, int length){
  71         int propertiesLength = length;
  72         List<QueueProperty> propertiesList = new ArrayList<>();
  73         while (propertiesLength > 0) {
  74             QueuePropertyBuilder propertiesBuilder = new QueuePropertyBuilder();
  75             QueueProperties property = QueueProperties.forValue(input.readUnsignedShort());
  76             propertiesBuilder.setProperty(property);
  77             int currentPropertyLength = input.readUnsignedShort();
  78             propertiesLength -= currentPropertyLength;
  79             input.skipBytes(PADDING_IN_QUEUE_PROPERTY_HEADER);
  80             if (property.equals(QueueProperties.OFPQTMINRATE) || property.equals(QueueProperties.OFPQTMAXRATE)) {
  81                 RateQueuePropertyBuilder rateBuilder = new RateQueuePropertyBuilder();
  82                 rateBuilder.setRate(input.readUnsignedShort());
  83                 propertiesBuilder.addAugmentation(RateQueueProperty.class, rateBuilder.build());
  84                 input.skipBytes(PADDING_IN_RATE_QUEUE_PROPERTY);
  85             } else if (property.equals(QueueProperties.OFPQTEXPERIMENTER)) {
  86                 ExperimenterQueuePropertyBuilder expBuilder = new ExperimenterQueuePropertyBuilder();
  87                 expBuilder.setExperimenter(input.readUnsignedInt());
  88                 input.skipBytes(PADDING_IN_EXPERIMENTER_QUEUE_PROPERTY);
  89                 expBuilder.setData(input.readBytes(currentPropertyLength
  90                         - EncodeConstants.SIZE_OF_INT_IN_BYTES - PADDING_IN_EXPERIMENTER_QUEUE_PROPERTY).array());
  91                 propertiesBuilder.addAugmentation(RateQueueProperty.class, expBuilder.build());
  92             }
  93             propertiesList.add(propertiesBuilder.build());
  94         }
  95         return propertiesList;
  96     }
  97
  98 }