openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/protocol/deserialization/MatchDeserializerInjector.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.openflowplugin.impl.protocol.deserialization;
  10
  11 import com.google.common.annotations.VisibleForTesting;
  12 import java.util.function.Consumer;
  13 import java.util.function.Function;
  14 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerExtensionProvider;
  15 import org.opendaylight.openflowjava.protocol.api.keys.MatchEntryDeserializerKey;
  16 import org.opendaylight.openflowjava.protocol.api.keys.MessageCodeKey;
  17 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  18 import org.opendaylight.openflowplugin.impl.protocol.deserialization.key.MessageCodeMatchKey;
  19 import org.opendaylight.openflowplugin.impl.protocol.deserialization.match.MatchDeserializer;
  20 import org.opendaylight.openflowplugin.api.openflow.protocol.deserialization.MatchEntryDeserializer;
  21 import org.opendaylight.openflowplugin.api.openflow.protocol.deserialization.MatchEntryDeserializerRegistry;
  22 import org.opendaylight.openflowplugin.extension.api.path.MatchPath;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.Match;
  24
  25 /**
  26  * Util class for injecting new match entry deserializers into OpenflowJava
  27  */
  28 public class MatchDeserializerInjector {
  29
  30     /**
  31      * Injects deserializers into provided {@link org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerExtensionProvider}
  32      * @param provider OpenflowJava deserializer extension provider
  33      */
  34     public static void injectDeserializers(final DeserializerExtensionProvider provider) {
  35         for (MatchPath path : MatchPath.values()) {
  36             final MatchDeserializer deserializer = new MatchDeserializer(path);
  37             provider.registerDeserializer(
  38                     new MessageCodeMatchKey(
  39                         EncodeConstants.OF13_VERSION_ID,
  40                         EncodeConstants.EMPTY_LENGTH,
  41                         Match.class,
  42                         path),
  43                     deserializer);
  44
  45             // Inject new match entry serializers here using injector created by createInjector method
  46             final Function<Integer, Function<Long, Function<Integer, Consumer<MatchEntryDeserializer>>>> injector =
  47                 createInjector(deserializer, EncodeConstants.OF13_VERSION_ID);
  48         }
  49     }
  50
  51     /**
  52      * Create injector that will inject new serializers into {@link org.opendaylight.openflowplugin.api.openflow.protocol.deserialization.MatchEntryDeserializerRegistry}
  53      * @param registry Match entry deserializer registry
  54      * @param version Openflow version
  55      * @return injector
  56      */
  57     @VisibleForTesting
  58     static Function<Integer, Function<Long, Function<Integer, Consumer<MatchEntryDeserializer>>>> createInjector(
  59             final MatchEntryDeserializerRegistry registry,
  60             final short version
  61             ) {
  62         return oxmClass -> expId -> oxmField -> deserializer -> {
  63             final MatchEntryDeserializerKey key = new MatchEntryDeserializerKey(version, oxmClass, oxmField);
  64             key.setExperimenterId(expId);
  65             registry.registerEntryDeserializer(key, deserializer);
  66         };
  67     }
  68
  69 }