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
  14 import org.opendaylight.genius.mdsalutil.MatchInfo;
  15 import org.opendaylight.genius.utils.SuperTypeUtil;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.eric.match.rev180730.EricAugMatchNodesNodeTableFlow;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.eric.match.rev180730.EricAugMatchNodesNodeTableFlowBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.ExtensionKey;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.GeneralAugMatchNodesNodeTableFlow;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.GeneralAugMatchNodesNodeTableFlowBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.general.extension.grouping.ExtensionBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.general.extension.list.grouping.ExtensionList;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowplugin.extension.general.rev140714.general.extension.list.grouping.ExtensionListBuilder;
  25 import org.opendaylight.yangtools.concepts.Builder;
  26 import org.opendaylight.yangtools.yang.binding.DataObject;
  27
  28
  29 public abstract class EricMatchInfoHelper<T extends DataObject, B extends Builder<T>> extends MatchInfo {
  30     private final Class<B> builderClass;
  31     // The key class can't be a type parameter, it varies in some subclasses
  32     private final Class<? extends ExtensionKey> keyClass;
  33
  34     protected EricMatchInfoHelper(Class<? extends ExtensionKey> keyClass) {
  35         this.keyClass = keyClass;
  36         builderClass = SuperTypeUtil.getTypeParameter(getClass(), 1);
  37     }
  38
  39     @Override
  40     public void createInnerMatchBuilder(Map<Class<?>, Object> mapMatchBuilder) {
  41         populateBuilder((B) mapMatchBuilder.computeIfAbsent(builderClass, key -> {
  42             try {
  43                 return builderClass.newInstance();
  44             } catch (InstantiationException | IllegalAccessException e) {
  45                 throw new IllegalStateException("Unable to create an instance of " + builderClass, e);
  46             }
  47         }));
  48     }
  49
  50     @Override
  51     public void setMatch(MatchBuilder matchBuilder, Map<Class<?>, Object> mapMatchBuilder) {
  52         B builder = (B) mapMatchBuilder.remove(builderClass);
  53
  54         if (builder != null) {
  55
  56             EricAugMatchNodesNodeTableFlowBuilder ericAugMatchBuilder = new EricAugMatchNodesNodeTableFlowBuilder();
  57             applyValue(ericAugMatchBuilder, builder.build());
  58             EricAugMatchNodesNodeTableFlow ericAugMatch = ericAugMatchBuilder.build();
  59             GeneralAugMatchNodesNodeTableFlow existingAugmentations = matchBuilder
  60                     .augmentation(GeneralAugMatchNodesNodeTableFlow.class);
  61             GeneralAugMatchNodesNodeTableFlow genAugMatch = generalAugMatchBuilder(existingAugmentations,
  62                     ericAugMatch, keyClass);
  63             matchBuilder.addAugmentation(GeneralAugMatchNodesNodeTableFlow.class, genAugMatch);
  64         }
  65     }
  66
  67     private GeneralAugMatchNodesNodeTableFlow generalAugMatchBuilder(
  68             GeneralAugMatchNodesNodeTableFlow existingAugmentations, EricAugMatchNodesNodeTableFlow ericAugMatch,
  69             Class<? extends ExtensionKey> extentionKey) {
  70         List<ExtensionList> extensions = null;
  71         if (existingAugmentations != null) {
  72             extensions = existingAugmentations.getExtensionList();
  73         }
  74         if (extensions == null) {
  75             extensions = new ArrayList<>();
  76         }
  77         extensions.add(new ExtensionListBuilder().setExtensionKey(extentionKey)
  78                 .setExtension(
  79                         new ExtensionBuilder().addAugmentation(EricAugMatchNodesNodeTableFlow.class, ericAugMatch)
  80                                 .build())
  81                 .build());
  82         return new GeneralAugMatchNodesNodeTableFlowBuilder().setExtensionList(extensions).build();
  83     }
  84
  85     protected abstract void applyValue(EricAugMatchNodesNodeTableFlowBuilder matchBuilder, T value);
  86
  87     protected abstract void populateBuilder(B builder);
  88
  89     @Override
  90     public boolean equals(Object other) {
  91         if (this == other) {
  92             return true;
  93         }
  94         if (other == null || getClass() != other.getClass()) {
  95             return false;
  96         }
  97
  98         EricMatchInfoHelper<?, ?> that = (EricMatchInfoHelper<?, ?>) other;
  99
 100         if (builderClass != null ? !builderClass.equals(that.builderClass) : that.builderClass != null) {
 101             return false;
 102         }
 103         return keyClass != null ? keyClass.equals(that.keyClass) : that.keyClass == null;
 104     }
 105
 106     @Override
 107     public int hashCode() {
 108         int result = builderClass != null ? builderClass.hashCode() : 0;
 109         result = 31 * result + (keyClass != null ? keyClass.hashCode() : 0);
 110         return result;
 111     }
 112 }