openflowjava/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/instruction/WriteMetadataInstructionDeserializer.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 package org.opendaylight.openflowjava.protocol.impl.deserialization.instruction;
   9
  10 import io.netty.buffer.ByteBuf;
  11 import org.opendaylight.openflowjava.protocol.api.extensibility.HeaderDeserializer;
  12 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  13 import org.opendaylight.openflowjava.protocol.impl.util.InstructionConstants;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.instruction.grouping.instruction.choice.WriteMetadataCaseBuilder;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.instruction.grouping.instruction.choice.write.metadata._case.WriteMetadataBuilder;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.instructions.grouping.Instruction;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.instruction.rev130731.instructions.grouping.InstructionBuilder;
  18
  19 /**
  20  * Deserializer for write metadata instructions.
  21  *
  22  * @author michal.polkorab
  23  */
  24 public class WriteMetadataInstructionDeserializer implements OFDeserializer<Instruction>,
  25         HeaderDeserializer<Instruction> {
  26     @Override
  27     public Instruction deserialize(ByteBuf input) {
  28         final InstructionBuilder builder = new InstructionBuilder();
  29         input.skipBytes(2 * Short.BYTES);
  30         input.skipBytes(InstructionConstants.PADDING_IN_WRITE_METADATA);
  31         final WriteMetadataCaseBuilder caseBuilder = new WriteMetadataCaseBuilder();
  32         WriteMetadataBuilder metadataBuilder = new WriteMetadataBuilder();
  33         byte[] metadata = new byte[Long.BYTES];
  34         input.readBytes(metadata);
  35         metadataBuilder.setMetadata(metadata);
  36         byte[] metadataMask = new byte[Long.BYTES];
  37         input.readBytes(metadataMask);
  38         metadataBuilder.setMetadataMask(metadataMask);
  39         caseBuilder.setWriteMetadata(metadataBuilder.build());
  40         builder.setInstructionChoice(caseBuilder.build());
  41         return builder.build();
  42     }
  43
  44     @Override
  45     public Instruction deserializeHeader(ByteBuf input) {
  46         InstructionBuilder builder = new InstructionBuilder();
  47         input.skipBytes(2 * Short.BYTES);
  48         builder.setInstructionChoice(new WriteMetadataCaseBuilder().build());
  49         return builder.build();
  50     }
  51 }