openflowjava/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 import java.util.ArrayList;
  13 import java.util.List;
  14 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  15 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev150225.RateQueueProperty;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev150225.RateQueuePropertyBuilder;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortNumber;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.QueueId;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.QueueProperties;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetQueueConfigOutput;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetQueueConfigOutputBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.get.config.reply.Queues;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.get.config.reply.QueuesBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.property.header.QueueProperty;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.property.header.QueuePropertyBuilder;
  27
  28 /**
  29  * Translates QueueGetConfigReply messages (OpenFlow v1.0).
  30  *
  31  * @author michal.polkorab
  32  */
  33 public class OF10QueueGetConfigReplyMessageFactory implements OFDeserializer<GetQueueConfigOutput> {
  34
  35     private static final byte PADDING_IN_QUEUE_GET_CONFIG_REPLY_HEADER = 6;
  36     private static final byte PADDING_IN_PACKET_QUEUE_HEADER = 2;
  37     private static final byte PADDING_IN_QUEUE_PROPERTY_HEADER = 4;
  38     private static final byte PADDING_IN_RATE_QUEUE_PROPERTY = 6;
  39     private static final byte PACKET_QUEUE_HEADER_LENGTH = 8;
  40
  41     @Override
  42     public GetQueueConfigOutput deserialize(ByteBuf rawMessage) {
  43         GetQueueConfigOutputBuilder builder = new GetQueueConfigOutputBuilder();
  44         builder.setVersion((short) EncodeConstants.OF10_VERSION_ID);
  45         builder.setXid(rawMessage.readUnsignedInt());
  46         builder.setPort(new PortNumber((long) rawMessage.readUnsignedShort()));
  47         rawMessage.skipBytes(PADDING_IN_QUEUE_GET_CONFIG_REPLY_HEADER);
  48         builder.setQueues(createQueuesList(rawMessage));
  49         return builder.build();
  50     }
  51
  52     private static List<Queues> createQueuesList(ByteBuf input) {
  53         List<Queues> queuesList = new ArrayList<>();
  54         while (input.readableBytes() > 0) {
  55             QueuesBuilder queueBuilder = new QueuesBuilder();
  56             queueBuilder.setQueueId(new QueueId(input.readUnsignedInt()));
  57             int length = input.readUnsignedShort();
  58             input.skipBytes(PADDING_IN_PACKET_QUEUE_HEADER);
  59             queueBuilder.setQueueProperty(createPropertiesList(input, length - PACKET_QUEUE_HEADER_LENGTH));
  60             queuesList.add(queueBuilder.build());
  61         }
  62         return queuesList;
  63     }
  64
  65     private static List<QueueProperty> createPropertiesList(ByteBuf input, int length) {
  66         int propertiesLength = length;
  67         List<QueueProperty> propertiesList = new ArrayList<>();
  68         while (propertiesLength > 0) {
  69             QueuePropertyBuilder propertiesBuilder = new QueuePropertyBuilder();
  70             QueueProperties property = QueueProperties.forValue(input.readUnsignedShort());
  71             propertiesBuilder.setProperty(property);
  72             propertiesLength -= input.readUnsignedShort();
  73             input.skipBytes(PADDING_IN_QUEUE_PROPERTY_HEADER);
  74             if (property.equals(QueueProperties.OFPQTMINRATE)) {
  75                 RateQueuePropertyBuilder rateBuilder = new RateQueuePropertyBuilder();
  76                 rateBuilder.setRate(input.readUnsignedShort());
  77                 propertiesBuilder.addAugmentation(RateQueueProperty.class, rateBuilder.build());
  78                 input.skipBytes(PADDING_IN_RATE_QUEUE_PROPERTY);
  79             }
  80             propertiesList.add(propertiesBuilder.build());
  81         }
  82         return propertiesList;
  83     }
  84 }