binding/mdsal-binding-generator/src/main/java/org/opendaylight/mdsal/binding/generator/impl/reactor/LeafListGenerator.java

   1 /*
   2  * Copyright (c) 2021 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.mdsal.binding.generator.impl.reactor;
   9
  10 import org.opendaylight.mdsal.binding.generator.impl.rt.DefaultLeafListRuntimeType;
  11 import org.opendaylight.mdsal.binding.model.api.Type;
  12 import org.opendaylight.mdsal.binding.model.ri.Types;
  13 import org.opendaylight.mdsal.binding.runtime.api.LeafListRuntimeType;
  14 import org.opendaylight.yangtools.yang.common.Ordering;
  15 import org.opendaylight.yangtools.yang.model.api.stmt.LeafListEffectiveStatement;
  16 import org.opendaylight.yangtools.yang.model.api.stmt.OrderedByEffectiveStatement;
  17
  18 /**
  19  * Generator corresponding to a {@code leaf-list} statement.
  20  */
  21 final class LeafListGenerator
  22         extends AbstractTypeAwareGenerator<LeafListEffectiveStatement, LeafListRuntimeType, LeafListGenerator> {
  23     LeafListGenerator(final LeafListEffectiveStatement statement, final AbstractCompositeGenerator<?, ?> parent) {
  24         super(statement, parent);
  25     }
  26
  27     @Override
  28     Type methodReturnType(final TypeBuilderFactory builderFactory) {
  29         // If we are a leafref and the reference cannot be resolved, we need to generate a list wildcard, not
  30         // List<Object>, we will try to narrow the return type in subclasses.
  31         final Type type = super.methodReturnType(builderFactory);
  32         final boolean isObject = Types.objectType().equals(type);
  33         final Ordering ordering = statement().findFirstEffectiveSubstatementArgument(OrderedByEffectiveStatement.class)
  34             .orElse(Ordering.SYSTEM);
  35         switch (ordering) {
  36             case SYSTEM:
  37                 return isObject ? Types.setTypeWildcard() : Types.setTypeFor(type);
  38             case USER:
  39                 return isObject ? Types.listTypeWildcard() : Types.listTypeFor(type);
  40             default:
  41                 throw new IllegalStateException("Unexpected ordering " + ordering);
  42         }
  43     }
  44
  45     @Override
  46     LeafListRuntimeType createRuntimeType(final Type type) {
  47         return new DefaultLeafListRuntimeType(type, statement());
  48     }
  49
  50     @Override
  51     LeafListRuntimeType rebaseRuntimeType(final LeafListRuntimeType type, final LeafListEffectiveStatement statement) {
  52         return new DefaultLeafListRuntimeType(type.javaType(), statement);
  53     }
  54 }