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 io.netty.buffer.ByteBuf;
  11 import java.math.BigInteger;
  12 import java.util.List;
  13 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry;
  14 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistryInjector;
  15 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  16 import org.opendaylight.openflowjava.protocol.api.keys.MessageCodeKey;
  17 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  18 import org.opendaylight.openflowjava.protocol.impl.util.CodeKeyMaker;
  19 import org.opendaylight.openflowjava.protocol.impl.util.CodeKeyMakerFactory;
  20 import org.opendaylight.openflowjava.protocol.impl.util.ListDeserializer;
  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.FlowModCommand;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.FlowModFlags;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.PortNumber;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.TableId;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.grouping.Match;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowModInput;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowModInputBuilder;
  29
  30 /**
  31  * Translates FlowModInput messages
  32  */
  33 public class FlowModInputMessageFactory implements OFDeserializer<FlowModInput>, DeserializerRegistryInjector {
  34
  35     private static final byte PADDING = 2;
  36     private DeserializerRegistry registry;
  37
  38     @Override
  39     public FlowModInput deserialize(ByteBuf rawMessage) {
  40         FlowModInputBuilder builder = new FlowModInputBuilder();
  41         builder.setVersion((short) EncodeConstants.OF13_VERSION_ID);
  42         builder.setXid(rawMessage.readUnsignedInt());
  43         byte[] cookie = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  44         rawMessage.readBytes(cookie);
  45         builder.setCookie(new BigInteger(1, cookie));
  46         byte[] cookie_mask = new byte[EncodeConstants.SIZE_OF_LONG_IN_BYTES];
  47         rawMessage.readBytes(cookie_mask);
  48         builder.setCookieMask(new BigInteger(1, cookie_mask));
  49         builder.setTableId(new TableId((long) rawMessage.readUnsignedByte()));
  50         builder.setCommand(FlowModCommand.forValue(rawMessage.readUnsignedByte()));
  51         builder.setIdleTimeout(rawMessage.readUnsignedShort());
  52         builder.setHardTimeout(rawMessage.readUnsignedShort());
  53         builder.setPriority(rawMessage.readUnsignedShort());
  54         builder.setBufferId(rawMessage.readUnsignedInt());
  55         builder.setOutPort(new PortNumber(rawMessage.readUnsignedInt()));
  56         builder.setOutGroup(rawMessage.readUnsignedInt());
  57         builder.setFlags(createFlowModFlagsFromBitmap(rawMessage.readUnsignedShort()));
  58         rawMessage.skipBytes(PADDING);
  59         OFDeserializer<Match> matchDeserializer = registry.getDeserializer(
  60                 new MessageCodeKey(EncodeConstants.OF13_VERSION_ID, EncodeConstants.EMPTY_VALUE, Match.class));
  61         builder.setMatch(matchDeserializer.deserialize(rawMessage));
  62         CodeKeyMaker keyMaker = CodeKeyMakerFactory.createInstructionsKeyMaker(EncodeConstants.OF13_VERSION_ID);
  63         List<Instruction> instructions = ListDeserializer.deserializeList(EncodeConstants.OF13_VERSION_ID,
  64                 rawMessage.readableBytes(), rawMessage, keyMaker, registry);
  65         builder.setInstruction(instructions);
  66         return builder.build();
  67     }
  68
  69     private static FlowModFlags createFlowModFlagsFromBitmap(int input) {
  70         final Boolean _oFPFFSENDFLOWREM = (input & (1 << 0)) > 0;
  71         final Boolean _oFPFFCHECKOVERLAP = (input & (1 << 1)) > 0;
  72         final Boolean _oFPFFRESETCOUNTS = (input & (1 << 2)) > 0;
  73         final Boolean _oFPFFNOPKTCOUNTS = (input & (1 << 3)) > 0;
  74         final Boolean _oFPFFNOBYTCOUNTS = (input & (1 << 4)) > 0;
  75         return new FlowModFlags(_oFPFFCHECKOVERLAP, _oFPFFNOBYTCOUNTS, _oFPFFNOPKTCOUNTS, _oFPFFRESETCOUNTS,
  76                 _oFPFFSENDFLOWREM);
  77     }
  78
  79     @Override
  80     public void injectDeserializerRegistry(DeserializerRegistry deserializerRegistry) {
  81         registry = deserializerRegistry;
  82     }
  83 }