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.DeserializerRegistry;
  17 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistryInjector;
  18 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  19 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  20 import org.opendaylight.openflowjava.util.ExperimenterDeserializerKeyFactory;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.RateQueueProperty;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.RateQueuePropertyBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortNumber;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.QueueId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.QueueProperties;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetQueueConfigOutput;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetQueueConfigOutputBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.get.config.reply.Queues;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.get.config.reply.QueuesBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.property.header.QueueProperty;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.property.header.QueuePropertyBuilder;
  32
  33 /**
  34  * Translates QueueGetConfigReply messages
  35  * @author timotej.kubas
  36  * @author michal.polkorab
  37  */
  38 public class QueueGetConfigReplyMessageFactory implements OFDeserializer<GetQueueConfigOutput>,
  39         DeserializerRegistryInjector {
  40
  41     private static final byte PADDING_IN_QUEUE_GET_CONFIG_REPLY_HEADER = 4;
  42     private static final byte PADDING_IN_PACKET_QUEUE_HEADER = 6;
  43     private static final byte PADDING_IN_QUEUE_PROPERTY_HEADER = 4;
  44     private static final int PADDING_IN_RATE_QUEUE_PROPERTY = 6;
  45     private static final byte PACKET_QUEUE_LENGTH = 16;
  46     private DeserializerRegistry registry;
  47
  48     @Override
  49     public GetQueueConfigOutput deserialize(ByteBuf rawMessage) {
  50         GetQueueConfigOutputBuilder builder = new GetQueueConfigOutputBuilder();
  51         builder.setVersion((short) EncodeConstants.OF13_VERSION_ID);
  52         builder.setXid((rawMessage.readUnsignedInt()));
  53         builder.setPort(new PortNumber(rawMessage.readUnsignedInt()));
  54         rawMessage.skipBytes(PADDING_IN_QUEUE_GET_CONFIG_REPLY_HEADER);
  55         builder.setQueues(createQueuesList(rawMessage));
  56         return builder.build();
  57     }
  58
  59     private List<Queues> createQueuesList(ByteBuf input){
  60         List<Queues> queuesList = new ArrayList<>();
  61         while (input.readableBytes() > 0) {
  62             QueuesBuilder queueBuilder = new QueuesBuilder();
  63             queueBuilder.setQueueId(new QueueId(input.readUnsignedInt()));
  64             queueBuilder.setPort(new PortNumber(input.readUnsignedInt()));
  65             int length = input.readUnsignedShort();
  66             input.skipBytes(PADDING_IN_PACKET_QUEUE_HEADER);
  67             queueBuilder.setQueueProperty(createPropertiesList(input, length - PACKET_QUEUE_LENGTH));
  68             queuesList.add(queueBuilder.build());
  69         }
  70         return queuesList;
  71     }
  72
  73     private List<QueueProperty> createPropertiesList(ByteBuf input, int length){
  74         int propertiesLength = length;
  75         List<QueueProperty> propertiesList = new ArrayList<>();
  76         while (propertiesLength > 0) {
  77             int propertyStartIndex = input.readerIndex();
  78             QueuePropertyBuilder propertiesBuilder = new QueuePropertyBuilder();
  79             QueueProperties property = QueueProperties.forValue(input.readUnsignedShort());
  80             propertiesBuilder.setProperty(property);
  81             int currentPropertyLength = input.readUnsignedShort();
  82             propertiesLength -= currentPropertyLength;
  83             input.skipBytes(PADDING_IN_QUEUE_PROPERTY_HEADER);
  84             if (property.equals(QueueProperties.OFPQTMINRATE) || property.equals(QueueProperties.OFPQTMAXRATE)) {
  85                 RateQueuePropertyBuilder rateBuilder = new RateQueuePropertyBuilder();
  86                 rateBuilder.setRate(input.readUnsignedShort());
  87                 propertiesBuilder.addAugmentation(RateQueueProperty.class, rateBuilder.build());
  88                 input.skipBytes(PADDING_IN_RATE_QUEUE_PROPERTY);
  89             } else if (property.equals(QueueProperties.OFPQTEXPERIMENTER)) {
  90                 long expId = input.readUnsignedInt();
  91                 input.readerIndex(propertyStartIndex);
  92                 OFDeserializer<QueueProperty> deserializer = registry.getDeserializer(
  93                         ExperimenterDeserializerKeyFactory.createQueuePropertyDeserializerKey(
  94                                 EncodeConstants.OF13_VERSION_ID, expId));
  95                 propertiesList.add(deserializer.deserialize(input));
  96                 continue;
  97             }
  98             propertiesList.add(propertiesBuilder.build());
  99         }
 100         return propertiesList;
 101     }
 102
 103     @Override
 104     public void injectDeserializerRegistry(DeserializerRegistry deserializerRegistry) {
 105         this.registry = deserializerRegistry;
 106     }
 107 }