openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/serialization/factories/FlowModInputMessageFactory.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.serialization.factories;
  10
  11 import io.netty.buffer.ByteBuf;
  12 import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;
  13 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistry;
  14 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistryInjector;
  15 import org.opendaylight.openflowjava.protocol.api.keys.MessageTypeKey;
  16 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  17 import org.opendaylight.openflowjava.protocol.impl.util.ListSerializer;
  18 import org.opendaylight.openflowjava.protocol.impl.util.TypeKeyMaker;
  19 import org.opendaylight.openflowjava.protocol.impl.util.TypeKeyMakerFactory;
  20 import org.opendaylight.openflowjava.util.ByteBufUtils;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.instructions.grouping.Instruction;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowModFlags;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.grouping.Match;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowMod;
  25
  26 /**
  27  * Translates FlowMod messages.
  28  * OF protocol versions: 1.3.
  29  * @author timotej.kubas
  30  * @author michal.polkorab
  31  */
  32 public class FlowModInputMessageFactory implements OFSerializer<FlowMod>, SerializerRegistryInjector {
  33     private static final byte MESSAGE_TYPE = 14;
  34     private static final byte PADDING_IN_FLOW_MOD_MESSAGE = 2;
  35     private static final TypeKeyMaker<Instruction> INSTRUCTION_KEY_MAKER =
  36             TypeKeyMakerFactory.createInstructionKeyMaker(EncodeConstants.OF13_VERSION_ID);
  37     private SerializerRegistry registry;
  38
  39     @Override
  40     public void serialize(final FlowMod message, final ByteBuf outBuffer) {
  41         int index = outBuffer.writerIndex();
  42         ByteBufUtils.writeOFHeader(MESSAGE_TYPE, message, outBuffer, EncodeConstants.EMPTY_LENGTH);
  43         outBuffer.writeLong(message.getCookie().longValue());
  44         outBuffer.writeLong(message.getCookieMask().longValue());
  45         outBuffer.writeByte(message.getTableId().getValue().byteValue());
  46         outBuffer.writeByte(message.getCommand().getIntValue());
  47         outBuffer.writeShort(message.getIdleTimeout());
  48         outBuffer.writeShort(message.getHardTimeout());
  49         outBuffer.writeShort(message.getPriority());
  50         outBuffer.writeInt(message.getBufferId().intValue());
  51         outBuffer.writeInt(message.getOutPort().getValue().intValue());
  52         outBuffer.writeInt(message.getOutGroup().intValue());
  53         outBuffer.writeShort(createFlowModFlagsBitmask(message.getFlags()));
  54         outBuffer.writeZero(PADDING_IN_FLOW_MOD_MESSAGE);
  55         registry.<Match, OFSerializer<Match>>getSerializer(new MessageTypeKey<>(message.getVersion(), Match.class))
  56             .serialize(message.getMatch(), outBuffer);
  57         ListSerializer.serializeList(message.getInstruction(), INSTRUCTION_KEY_MAKER, registry, outBuffer);
  58         ByteBufUtils.updateOFHeaderLength(outBuffer, index);
  59     }
  60
  61     @Override
  62     public void injectSerializerRegistry(final SerializerRegistry serializerRegistry) {
  63         this.registry = serializerRegistry;
  64     }
  65
  66     private static int createFlowModFlagsBitmask(final FlowModFlags flags) {
  67         return ByteBufUtils.fillBitMask(0,
  68                 flags.isOFPFFSENDFLOWREM(),
  69                 flags.isOFPFFCHECKOVERLAP(),
  70                 flags.isOFPFFRESETCOUNTS(),
  71                 flags.isOFPFFNOPKTCOUNTS(),
  72                 flags.isOFPFFNOBYTCOUNTS());
  73     }
  74
  75 }