openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/protocol/deserialization/InstructionDeserializerInjector.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 package org.opendaylight.openflowplugin.impl.protocol.deserialization;
   9
  10 import java.util.function.Consumer;
  11 import java.util.function.Function;
  12 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerExtensionProvider;
  13 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  14 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  15 import org.opendaylight.openflowjava.protocol.impl.util.InstructionConstants;
  16 import org.opendaylight.openflowplugin.api.openflow.protocol.deserialization.MessageCodeExperimenterKey;
  17 import org.opendaylight.openflowplugin.extension.api.path.ActionPath;
  18 import org.opendaylight.openflowplugin.impl.protocol.deserialization.instruction.ApplyActionsInstructionDeserializer;
  19 import org.opendaylight.openflowplugin.impl.protocol.deserialization.instruction.ClearActionsInstructionDeserializer;
  20 import org.opendaylight.openflowplugin.impl.protocol.deserialization.instruction.GoToTableInstructionDeserializer;
  21 import org.opendaylight.openflowplugin.impl.protocol.deserialization.instruction.MeterInstructionDeserializer;
  22 import org.opendaylight.openflowplugin.impl.protocol.deserialization.instruction.WriteActionsInstructionDeserializer;
  23 import org.opendaylight.openflowplugin.impl.protocol.deserialization.instruction.WriteMetadataInstructionDeserializer;
  24 import org.opendaylight.openflowplugin.impl.protocol.deserialization.key.MessageCodeActionExperimenterKey;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.Instruction;
  26 import org.opendaylight.yangtools.yang.common.Uint8;
  27
  28 public final class InstructionDeserializerInjector {
  29
  30     private InstructionDeserializerInjector() {
  31     }
  32
  33     /**
  34      * Injects instruction deserializers into provided
  35      * {@link org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerExtensionProvider}.
  36      *
  37      * @param provider OpenflowJava deserializer extension provider
  38      */
  39     static void injectDeserializers(final DeserializerExtensionProvider provider) {
  40         // Inject new instruction deserializers here using injector created by createInjector method
  41         final Function<Byte, Function<ActionPath, Consumer<OFDeserializer<Instruction>>>> injector =
  42                 createInjector(provider, EncodeConstants.OF_VERSION_1_3);
  43
  44         injector.apply(InstructionConstants.GOTO_TABLE_TYPE).apply(null).accept(new GoToTableInstructionDeserializer());
  45         injector.apply(InstructionConstants.WRITE_METADATA_TYPE)
  46                 .apply(null).accept(new WriteMetadataInstructionDeserializer());
  47         injector.apply(InstructionConstants.CLEAR_ACTIONS_TYPE)
  48                 .apply(null).accept(new ClearActionsInstructionDeserializer());
  49         injector.apply(InstructionConstants.METER_TYPE).apply(null).accept(new MeterInstructionDeserializer());
  50
  51         for (ActionPath path : ActionPath.values()) {
  52             injector.apply(InstructionConstants.WRITE_ACTIONS_TYPE).apply(path).accept(new
  53                     WriteActionsInstructionDeserializer(path));
  54             injector.apply(InstructionConstants.APPLY_ACTIONS_TYPE).apply(path).accept(new
  55                     ApplyActionsInstructionDeserializer(path));
  56         }
  57     }
  58
  59     /**
  60      * Create injector that will inject new deserializers into
  61      * #{@link org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerExtensionProvider}.
  62      *
  63      * @param provider OpenflowJava deserializer extension provider
  64      * @param version  Openflow version
  65      * @return injector
  66      */
  67     private static Function<Byte, Function<ActionPath, Consumer<OFDeserializer<Instruction>>>> createInjector(
  68             final DeserializerExtensionProvider provider, final Uint8 version) {
  69         return code -> actionPath -> deserializer -> provider.registerDeserializer(actionPath != null
  70                         ? new MessageCodeActionExperimenterKey(version,
  71                                                                code,
  72                                                                Instruction.class,
  73                                                                actionPath,
  74                                                                null)
  75                         : new MessageCodeExperimenterKey(version, code, Instruction.class, null),
  76                 deserializer);
  77     }
  78 }