openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/serialization/experimenter/BundleAddMessageFactory.java

   1 /*
   2  * Copyright (c) 2016 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.experimenter;
  10
  11 import io.netty.buffer.ByteBuf;
  12 import java.util.List;
  13 import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;
  14 import org.opendaylight.openflowjava.protocol.api.keys.MessageTypeKey;
  15 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.bundle.properties.BundleProperty;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.experimenter.input.experimenter.data.of.choice.BundleAddMessage;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.approved.extensions.rev160802.experimenter.input.experimenter.data.of.choice.bundle.add.message.Message;
  19 import org.opendaylight.yangtools.yang.binding.DataContainer;
  20
  21 /**
  22  * Translates BundleAddMessage messages (OpenFlow v1.3 extension #230).
  23  */
  24 public class BundleAddMessageFactory extends AbstractBundleMessageFactory<BundleAddMessage> {
  25
  26     @Override
  27     public void serialize(BundleAddMessage input, ByteBuf outBuffer) {
  28         outBuffer.writeInt(input.getBundleId().getValue().intValue());
  29         outBuffer.writeZero(2);
  30         writeBundleFlags(input.getFlags(), outBuffer);
  31
  32         int msgStart = outBuffer.writerIndex();
  33         serializeInnerMessage(input.getMessage(), outBuffer, input.getMessage().getImplementedInterface());
  34         int msgLength = outBuffer.writerIndex() - msgStart;
  35
  36         List<BundleProperty> bundleProperties = input.getBundleProperty();
  37         if (bundleProperties != null && !bundleProperties.isEmpty()) {
  38             outBuffer.writeZero(paddingNeeded(msgLength));
  39             writeBundleProperties(input.getBundleProperty(), outBuffer);
  40         }
  41     }
  42
  43     private <T extends DataContainer> void serializeInnerMessage(final Message innerMessage, final ByteBuf outBuffer,
  44                                                                  final Class<T> clazz) {
  45         OFSerializer<T> serializer = serializerRegistry.getSerializer(
  46                 new MessageTypeKey<>(EncodeConstants.OF13_VERSION_ID, clazz));
  47         serializer.serialize((T)innerMessage, outBuffer);
  48     }
  49
  50     private static int paddingNeeded(final int length) {
  51         int paddingRemainder = length % EncodeConstants.PADDING;
  52         return (paddingRemainder != 0) ? (EncodeConstants.PADDING - paddingRemainder) : 0;
  53     }
  54
  55 }