yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/leaf_list/AbstractLeafListEffectiveStatement.java

   1 /*
   2  * Copyright (c) 2020 PANTHEON.tech, 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.yangtools.yang.parser.rfc7950.stmt.leaf_list;
   9
  10 import static com.google.common.base.Verify.verify;
  11 import static java.util.Objects.requireNonNull;
  12
  13 import com.google.common.collect.ImmutableList;
  14 import java.util.Objects;
  15 import org.eclipse.jdt.annotation.NonNull;
  16 import org.opendaylight.yangtools.yang.common.QName;
  17 import org.opendaylight.yangtools.yang.model.api.DerivableSchemaNode;
  18 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
  19 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  20 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
  21 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  22 import org.opendaylight.yangtools.yang.model.api.stmt.DescriptionEffectiveStatement;
  23 import org.opendaylight.yangtools.yang.model.api.stmt.LeafListEffectiveStatement;
  24 import org.opendaylight.yangtools.yang.model.api.stmt.LeafListStatement;
  25 import org.opendaylight.yangtools.yang.model.api.stmt.ReferenceEffectiveStatement;
  26 import org.opendaylight.yangtools.yang.model.api.stmt.StatusEffectiveStatement;
  27 import org.opendaylight.yangtools.yang.model.api.stmt.TypeEffectiveStatement;
  28 import org.opendaylight.yangtools.yang.model.api.stmt.UnitsEffectiveStatement;
  29 import org.opendaylight.yangtools.yang.model.util.type.ConcreteTypeBuilder;
  30 import org.opendaylight.yangtools.yang.model.util.type.ConcreteTypes;
  31 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.AbstractDeclaredEffectiveStatement;
  32 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.EffectiveStatementMixins.DataSchemaNodeMixin;
  33 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.EffectiveStatementMixins.MustConstraintMixin;
  34 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.EffectiveStatementMixins.UserOrderedMixin;
  35
  36 abstract class AbstractLeafListEffectiveStatement
  37         extends AbstractDeclaredEffectiveStatement.Default<QName, LeafListStatement>
  38         implements LeafListEffectiveStatement, LeafListSchemaNode, DerivableSchemaNode,
  39             UserOrderedMixin<QName, LeafListStatement>, DataSchemaNodeMixin<QName, LeafListStatement>,
  40             MustConstraintMixin<QName, LeafListStatement> {
  41     // Variable: either a single substatement or an ImmutableList
  42     private final @NonNull Object substatements;
  43     private final @NonNull SchemaPath path;
  44     private final @NonNull TypeDefinition<?> type;
  45     private final int flags;
  46
  47     AbstractLeafListEffectiveStatement(final LeafListStatement declared, final SchemaPath path, final int flags,
  48             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
  49         super(declared);
  50         this.substatements = substatements.size() == 1 ? substatements.get(0) : substatements;
  51         this.path = requireNonNull(path);
  52         this.flags = flags;
  53         // TODO: lazy instantiation?
  54         this.type = buildType();
  55     }
  56
  57     @Override
  58     @SuppressWarnings("unchecked")
  59     public final ImmutableList<? extends EffectiveStatement<?, ?>> effectiveSubstatements() {
  60         if (substatements instanceof ImmutableList) {
  61             return (ImmutableList<? extends EffectiveStatement<?, ?>>) substatements;
  62         }
  63         verify(substatements instanceof EffectiveStatement, "Unexpected substatement %s", substatements);
  64         return ImmutableList.of((EffectiveStatement<?, ?>) substatements);
  65     }
  66
  67     @Override
  68     public final int flags() {
  69         return flags;
  70     }
  71
  72     @Override
  73     public final @NonNull QName argument() {
  74         return getQName();
  75     }
  76
  77     @Override
  78     public final @NonNull SchemaPath getPath() {
  79         return path;
  80     }
  81
  82     @Override
  83     public final TypeDefinition<?> getType() {
  84         return type;
  85     }
  86
  87     @Override
  88     public final boolean isUserOrdered() {
  89         return userOrdered();
  90     }
  91
  92     @Override
  93     public final int hashCode() {
  94         final int prime = 31;
  95         int result = 1;
  96         result = prime * result + Objects.hashCode(getQName());
  97         result = prime * result + Objects.hashCode(getPath());
  98         return result;
  99     }
 100
 101     @Override
 102     public final boolean equals(final Object obj) {
 103         if (this == obj) {
 104             return true;
 105         }
 106         if (!(obj instanceof AbstractLeafListEffectiveStatement)) {
 107             return false;
 108         }
 109         final AbstractLeafListEffectiveStatement other = (AbstractLeafListEffectiveStatement) obj;
 110         return Objects.equals(getQName(), other.getQName()) && Objects.equals(getPath(), other.getPath());
 111     }
 112
 113     @Override
 114     public final String toString() {
 115         return getClass().getSimpleName() + "[" + getQName() + "]";
 116     }
 117
 118     private TypeDefinition<?> buildType() {
 119         final TypeEffectiveStatement<?> typeStmt = findFirstEffectiveSubstatement(TypeEffectiveStatement.class).get();
 120         final ConcreteTypeBuilder<?> builder = ConcreteTypes.concreteTypeBuilder(typeStmt.getTypeDefinition(),
 121             getPath());
 122         for (final EffectiveStatement<?, ?> stmt : effectiveSubstatements()) {
 123             // NOTE: 'default' is ommitted here on purpose
 124             if (stmt instanceof DescriptionEffectiveStatement) {
 125                 builder.setDescription(((DescriptionEffectiveStatement)stmt).argument());
 126             } else if (stmt instanceof ReferenceEffectiveStatement) {
 127                 builder.setReference(((ReferenceEffectiveStatement)stmt).argument());
 128             } else if (stmt instanceof StatusEffectiveStatement) {
 129                 builder.setStatus(((StatusEffectiveStatement)stmt).argument());
 130             } else if (stmt instanceof UnitsEffectiveStatement) {
 131                 builder.setUnits(((UnitsEffectiveStatement)stmt).argument());
 132             }
 133         }
 134         return builder.build();
 135     }
 136 }