openflowjava/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/factories/FlowModInputMessageFactory.java

   1 /*
   2  * Copyright (c) 2015 NetIDE Consortium 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 package org.opendaylight.openflowjava.protocol.impl.deserialization.factories;
   9
  10 import static java.util.Objects.requireNonNull;
  11 import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint16;
  12 import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint32;
  13 import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint64;
  14 import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint8;
  15
  16 import io.netty.buffer.ByteBuf;
  17 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry;
  18 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistryInjector;
  19 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  20 import org.opendaylight.openflowjava.protocol.api.keys.MessageCodeKey;
  21 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  22 import org.opendaylight.openflowjava.protocol.impl.util.CodeKeyMakerFactory;
  23 import org.opendaylight.openflowjava.protocol.impl.util.ListDeserializer;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowModCommand;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowModFlags;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortNumber;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.TableId;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.grouping.Match;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowModInput;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowModInputBuilder;
  31
  32 /**
  33  * Translates FlowModInput messages.
  34  */
  35 public class FlowModInputMessageFactory implements OFDeserializer<FlowModInput>, DeserializerRegistryInjector {
  36     private static final byte PADDING = 2;
  37
  38     private DeserializerRegistry registry = null;
  39
  40     @Override
  41     public FlowModInput deserialize(final ByteBuf rawMessage) {
  42         FlowModInputBuilder builder = new FlowModInputBuilder()
  43                 .setVersion(EncodeConstants.OF_VERSION_1_3)
  44                 .setXid(readUint32(rawMessage))
  45                 .setCookie(readUint64(rawMessage))
  46                 .setCookieMask(readUint64(rawMessage))
  47                 .setTableId(new TableId(readUint8(rawMessage).toUint32()))
  48                 .setCommand(FlowModCommand.forValue(rawMessage.readUnsignedByte()))
  49                 .setIdleTimeout(readUint16(rawMessage))
  50                 .setHardTimeout(readUint16(rawMessage))
  51                 .setPriority(readUint16(rawMessage))
  52                 .setBufferId(readUint32(rawMessage))
  53                 .setOutPort(new PortNumber(readUint32(rawMessage)))
  54                 .setOutGroup(readUint32(rawMessage))
  55                 .setFlags(createFlowModFlagsFromBitmap(rawMessage.readUnsignedShort()));
  56         rawMessage.skipBytes(PADDING);
  57         OFDeserializer<Match> matchDeserializer = registry.getDeserializer(
  58                 new MessageCodeKey(EncodeConstants.OF_VERSION_1_3, EncodeConstants.EMPTY_VALUE, Match.class));
  59         return builder
  60             .setMatch(matchDeserializer.deserialize(rawMessage))
  61             .setInstruction(ListDeserializer.deserializeList(EncodeConstants.OF13_VERSION_ID,
  62                 rawMessage.readableBytes(), rawMessage,
  63                 CodeKeyMakerFactory.createInstructionsKeyMaker(EncodeConstants.OF_VERSION_1_3), registry))
  64             .build();
  65     }
  66
  67     @SuppressWarnings("checkstyle:AbbreviationAsWordInName")
  68     private static FlowModFlags createFlowModFlagsFromBitmap(final int input) {
  69         final Boolean _oFPFFSENDFLOWREM = (input & 1 << 0) != 0;
  70         final Boolean _oFPFFCHECKOVERLAP = (input & 1 << 1) != 0;
  71         final Boolean _oFPFFRESETCOUNTS = (input & 1 << 2) != 0;
  72         final Boolean _oFPFFNOPKTCOUNTS = (input & 1 << 3) != 0;
  73         final Boolean _oFPFFNOBYTCOUNTS = (input & 1 << 4) != 0;
  74         return new FlowModFlags(_oFPFFCHECKOVERLAP, _oFPFFNOBYTCOUNTS, _oFPFFNOPKTCOUNTS, _oFPFFRESETCOUNTS,
  75                 _oFPFFSENDFLOWREM);
  76     }
  77
  78     @Override
  79     public void injectDeserializerRegistry(final DeserializerRegistry deserializerRegistry) {
  80         registry = requireNonNull(deserializerRegistry);
  81     }
  82 }