/*
* 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.math.BigInteger;
import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry;
import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistryInjector;
import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
import org.opendaylight.openflowjava.protocol.api.keys.MessageCodeKey;
import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PacketInReason;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.TableId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.grouping.Match;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.PacketInMessage;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.PacketInMessageBuilder;
/**
* Translates PacketIn messages
* @author michal.polkorab
* @author timotej.kubas
*/
public class PacketInMessageFactory implements OFDeserializer<PacketInMessage>,
DeserializerRegistryInjector {
private static final byte PADDING_IN_PACKET_IN_HEADER = 2;
private static final MessageCodeKey MATCH_KEY = new MessageCodeKey(
EncodeConstants.OF13_VERSION_ID, EncodeConstants.EMPTY_VALUE, Match.class);
private DeserializerRegistry registry;
@Override
public PacketInMessage deserialize(final ByteBuf rawMessage) {
PacketInMessageBuilder builder = new PacketInMessageBuilder();
builder.setVersion((short) EncodeConstants.OF13_VERSION_ID);
builder.setXid(rawMessage.readUnsignedInt());
builder.setBufferId(rawMessage.readUnsignedInt());
builder.setTotalLen(rawMessage.readUnsignedShort());
builder.setReason(PacketInReason.forValue(rawMessage.readUnsignedByte()));
builder.setTableId(new TableId((long)rawMessage.readUnsignedByte()));
byte[] cookie = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
rawMessage.readBytes(cookie);
builder.setCookie(new BigInteger(1, cookie));
OFDeserializer<Match> matchDeserializer = registry.getDeserializer(MATCH_KEY);
builder.setMatch(matchDeserializer.deserialize(rawMessage));
rawMessage.skipBytes(PADDING_IN_PACKET_IN_HEADER);
byte[] data = new byte[rawMessage.readableBytes()];
rawMessage.readBytes(data);
builder.setData(data);
return builder.build();
}
@Override
public void injectDeserializerRegistry(final DeserializerRegistry deserializerRegistry) {
registry = deserializerRegistry;
}
}