mdsalutil/mdsalutil-api/src/main/java/org/opendaylight/genius/mdsalutil/ericmatches/EricMatchInfoHelper.java

   1 /*
   2  * Copyright (c) 2019 Alten Calsoft Labs India Pvt Ltd. 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.genius.mdsalutil.ericmatches;
   9
  10 import java.util.ArrayList;
  11 import java.util.List;
  12 import java.util.Map;
  13 import org.opendaylight.genius.mdsalutil.MatchInfo;
  14 import org.opendaylight.genius.utils.SuperTypeUtil;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.eric.match.rev180730.EricAugMatchNodesNodeTableFlow;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.eric.match.rev180730.EricAugMatchNodesNodeTableFlowBuilder;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.ExtensionKey;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.GeneralAugMatchNodesNodeTableFlow;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.GeneralAugMatchNodesNodeTableFlowBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.general.extension.grouping.ExtensionBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.general.extension.list.grouping.ExtensionList;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.general.extension.list.grouping.ExtensionListBuilder;
  24 import org.opendaylight.yangtools.concepts.Builder;
  25 import org.opendaylight.yangtools.yang.binding.DataObject;
  26
  27
  28 public abstract class EricMatchInfoHelper<T extends DataObject, B extends Builder<T>> extends MatchInfo {
  29     private final Class<B> builderClass;
  30     // The key class can't be a type parameter, it varies in some subclasses
  31     private final Class<? extends ExtensionKey> keyClass;
  32
  33     protected EricMatchInfoHelper(Class<? extends ExtensionKey> keyClass) {
  34         this.keyClass = keyClass;
  35         builderClass = SuperTypeUtil.getTypeParameter(getClass(), 1);
  36     }
  37
  38     @Override
  39     public void createInnerMatchBuilder(Map<Class<?>, Object> mapMatchBuilder) {
  40         populateBuilder((B) mapMatchBuilder.computeIfAbsent(builderClass, key -> {
  41             try {
  42                 return builderClass.newInstance();
  43             } catch (InstantiationException | IllegalAccessException e) {
  44                 throw new IllegalStateException("Unable to create an instance of " + builderClass, e);
  45             }
  46         }));
  47     }
  48
  49     @Override
  50     public void setMatch(MatchBuilder matchBuilder, Map<Class<?>, Object> mapMatchBuilder) {
  51         B builder = (B) mapMatchBuilder.remove(builderClass);
  52
  53         if (builder != null) {
  54
  55             EricAugMatchNodesNodeTableFlowBuilder ericAugMatchBuilder = new EricAugMatchNodesNodeTableFlowBuilder();
  56             applyValue(ericAugMatchBuilder, builder.build());
  57             EricAugMatchNodesNodeTableFlow ericAugMatch = ericAugMatchBuilder.build();
  58             GeneralAugMatchNodesNodeTableFlow existingAugmentations = matchBuilder
  59                     .augmentation(GeneralAugMatchNodesNodeTableFlow.class);
  60             GeneralAugMatchNodesNodeTableFlow genAugMatch = generalAugMatchBuilder(existingAugmentations,
  61                     ericAugMatch, keyClass);
  62             matchBuilder.addAugmentation(GeneralAugMatchNodesNodeTableFlow.class, genAugMatch);
  63         }
  64     }
  65
  66     private GeneralAugMatchNodesNodeTableFlow generalAugMatchBuilder(
  67             GeneralAugMatchNodesNodeTableFlow existingAugmentations, EricAugMatchNodesNodeTableFlow ericAugMatch,
  68             Class<? extends ExtensionKey> extentionKey) {
  69         List<ExtensionList> extensions = null;
  70         if (existingAugmentations != null) {
  71             extensions = existingAugmentations.getExtensionList();
  72         }
  73         if (extensions == null) {
  74             extensions = new ArrayList<>();
  75         }
  76         extensions.add(new ExtensionListBuilder().setExtensionKey(extentionKey)
  77                 .setExtension(
  78                         new ExtensionBuilder().addAugmentation(EricAugMatchNodesNodeTableFlow.class, ericAugMatch)
  79                                 .build())
  80                 .build());
  81         return new GeneralAugMatchNodesNodeTableFlowBuilder().setExtensionList(extensions).build();
  82     }
  83
  84     protected abstract void applyValue(EricAugMatchNodesNodeTableFlowBuilder matchBuilder, T value);
  85
  86     protected abstract void populateBuilder(B builder);
  87
  88     @Override
  89     public boolean equals(Object other) {
  90         if (this == other) {
  91             return true;
  92         }
  93         if (other == null || getClass() != other.getClass()) {
  94             return false;
  95         }
  96
  97         EricMatchInfoHelper<?, ?> that = (EricMatchInfoHelper<?, ?>) other;
  98
  99         if (builderClass != null ? !builderClass.equals(that.builderClass) : that.builderClass != null) {
 100             return false;
 101         }
 102         return keyClass != null ? keyClass.equals(that.keyClass) : that.keyClass == null;
 103     }
 104
 105     @Override
 106     public int hashCode() {
 107         int result = builderClass != null ? builderClass.hashCode() : 0;
 108         result = 31 * result + (keyClass != null ? keyClass.hashCode() : 0);
 109         return result;
 110     }
 111 }