openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/protocol/serialization/multipart/MultipartRequestTableFeaturesSerializer.java

   1 /*
   2  * Copyright (c) 2017 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.openflowplugin.impl.protocol.serialization.multipart;
  10
  11 import com.google.common.base.Preconditions;
  12 import io.netty.buffer.ByteBuf;
  13 import java.nio.charset.StandardCharsets;
  14 import java.util.Objects;
  15 import java.util.Optional;
  16 import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;
  17 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistry;
  18 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistryInjector;
  19 import org.opendaylight.openflowjava.protocol.api.keys.MessageTypeKey;
  20 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  21 import org.opendaylight.openflowjava.util.ByteBufUtils;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.multipart.request.multipart.request.body.MultipartRequestTableFeatures;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.table.feature.prop.type.TableFeaturePropType;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.table.features.table.features.TableProperties;
  25
  26 public class MultipartRequestTableFeaturesSerializer implements OFSerializer<MultipartRequestTableFeatures>,
  27         SerializerRegistryInjector {
  28
  29     private static final byte PADDING_IN_MULTIPART_REQUEST_TABLE_FEATURES_BODY = 5;
  30     private SerializerRegistry registry;
  31
  32     @Override
  33     public void serialize(final MultipartRequestTableFeatures multipartRequestTableFeatures, final ByteBuf byteBuf) {
  34         Optional
  35             .ofNullable(multipartRequestTableFeatures.nonnullTableFeatures())
  36             .ifPresent(tableFeatures -> tableFeatures.values()
  37                 .stream()
  38                 .filter(Objects::nonNull)
  39                 .forEach(tableFeature -> {
  40                     final int featureIndex = byteBuf.writerIndex();
  41                     byteBuf.writeShort(EncodeConstants.EMPTY_LENGTH);
  42                     byteBuf.writeByte(tableFeature.getTableId().byteValue());
  43                     byteBuf.writeZero(PADDING_IN_MULTIPART_REQUEST_TABLE_FEATURES_BODY);
  44                     byteBuf.writeBytes(tableFeature.getName().getBytes(StandardCharsets.UTF_8));
  45                     byteBuf.writeZero(32 - tableFeature.getName().getBytes(StandardCharsets.UTF_8).length);
  46                     byteBuf.writeLong(tableFeature.getMetadataMatch().longValue());
  47                     byteBuf.writeLong(tableFeature.getMetadataWrite().longValue());
  48                     byteBuf.writeInt(ByteBufUtils.fillBitMask(0, tableFeature.getConfig().isDEPRECATEDMASK()));
  49                     byteBuf.writeInt(tableFeature.getMaxEntries().intValue());
  50                     serializeProperties(tableFeature.getTableProperties(), byteBuf);
  51                     byteBuf.setShort(featureIndex, byteBuf.writerIndex() - featureIndex);
  52                 }));
  53     }
  54
  55     @SuppressWarnings("unchecked")
  56     private void serializeProperties(final TableProperties tableProperties, final ByteBuf byteBuf) {
  57         Optional
  58             .ofNullable(tableProperties)
  59             .flatMap(properties -> Optional.ofNullable(properties.nonnullTableFeatureProperties()))
  60             .ifPresent(properties -> properties.values()
  61                 .stream()
  62                 .filter(Objects::nonNull)
  63                 .forEach(property -> {
  64                     final Class<? extends TableFeaturePropType> clazz = (Class<? extends TableFeaturePropType>) property
  65                         .getTableFeaturePropType()
  66                         .implementedInterface();
  67
  68                     Preconditions.checkNotNull(registry)
  69                         .<TableFeaturePropType, OFSerializer<TableFeaturePropType>>getSerializer(
  70                             new MessageTypeKey<>(EncodeConstants.OF13_VERSION_ID, clazz))
  71                                 .serialize(property.getTableFeaturePropType(), byteBuf);
  72                 }));
  73     }
  74
  75     @Override
  76     public void injectSerializerRegistry(final SerializerRegistry serializerRegistry) {
  77         registry = serializerRegistry;
  78     }
  79 }