/*
* Copyright (c) 2013 Pantheon Technologies s.r.o. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.openflowjava.protocol.impl.deserialization.factories;
import io.netty.buffer.ByteBuf;
import java.util.ArrayList;
import java.util.List;
import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev150225.RateQueueProperty;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev150225.RateQueuePropertyBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortNumber;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.QueueId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.QueueProperties;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetQueueConfigOutput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetQueueConfigOutputBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.get.config.reply.Queues;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.get.config.reply.QueuesBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.property.header.QueueProperty;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.queue.property.header.QueuePropertyBuilder;
/**
* Translates QueueGetConfigReply messages (OpenFlow v1.0)
* @author michal.polkorab
*/
public class OF10QueueGetConfigReplyMessageFactory implements OFDeserializer<GetQueueConfigOutput> {
private static final byte PADDING_IN_QUEUE_GET_CONFIG_REPLY_HEADER = 6;
private static final byte PADDING_IN_PACKET_QUEUE_HEADER = 2;
private static final byte PADDING_IN_QUEUE_PROPERTY_HEADER = 4;
private static final byte PADDING_IN_RATE_QUEUE_PROPERTY = 6;
private static final byte PACKET_QUEUE_HEADER_LENGTH = 8;
@Override
public GetQueueConfigOutput deserialize(ByteBuf rawMessage) {
GetQueueConfigOutputBuilder builder = new GetQueueConfigOutputBuilder();
builder.setVersion((short) EncodeConstants.OF10_VERSION_ID);
builder.setXid((rawMessage.readUnsignedInt()));
builder.setPort(new PortNumber((long) rawMessage.readUnsignedShort()));
rawMessage.skipBytes(PADDING_IN_QUEUE_GET_CONFIG_REPLY_HEADER);
builder.setQueues(createQueuesList(rawMessage));
return builder.build();
}
private static List<Queues> createQueuesList(ByteBuf input){
List<Queues> queuesList = new ArrayList<>();
while (input.readableBytes() > 0) {
QueuesBuilder queueBuilder = new QueuesBuilder();
queueBuilder.setQueueId(new QueueId(input.readUnsignedInt()));
int length = input.readUnsignedShort();
input.skipBytes(PADDING_IN_PACKET_QUEUE_HEADER);
queueBuilder.setQueueProperty(createPropertiesList(input, length - PACKET_QUEUE_HEADER_LENGTH));
queuesList.add(queueBuilder.build());
}
return queuesList;
}
private static List<QueueProperty> createPropertiesList(ByteBuf input, int length){
int propertiesLength = length;
List<QueueProperty> propertiesList = new ArrayList<>();
while (propertiesLength > 0) {
QueuePropertyBuilder propertiesBuilder = new QueuePropertyBuilder();
QueueProperties property = QueueProperties.forValue(input.readUnsignedShort());
propertiesBuilder.setProperty(property);
propertiesLength -= input.readUnsignedShort();
input.skipBytes(PADDING_IN_QUEUE_PROPERTY_HEADER);
if (property.equals(QueueProperties.OFPQTMINRATE)) {
RateQueuePropertyBuilder rateBuilder = new RateQueuePropertyBuilder();
rateBuilder.setRate(input.readUnsignedShort());
propertiesBuilder.addAugmentation(RateQueueProperty.class, rateBuilder.build());
input.skipBytes(PADDING_IN_RATE_QUEUE_PROPERTY);
}
propertiesList.add(propertiesBuilder.build());
}
return propertiesList;
}
}