binding/mdsal-binding-generator/src/main/java/org/opendaylight/mdsal/binding/generator/impl/reactor/IdentityGenerator.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 static com.google.common.base.Verify.verify;
  11 import static org.opendaylight.mdsal.binding.model.ri.BindingTypes.BASE_IDENTITY;
  12
  13 import java.util.List;
  14 import java.util.stream.Collectors;
  15 import org.opendaylight.mdsal.binding.generator.impl.rt.DefaultIdentityRuntimeType;
  16 import org.opendaylight.mdsal.binding.model.api.GeneratedType;
  17 import org.opendaylight.mdsal.binding.model.api.Type;
  18 import org.opendaylight.mdsal.binding.model.api.type.builder.GeneratedTypeBuilder;
  19 import org.opendaylight.mdsal.binding.model.api.type.builder.GeneratedTypeBuilderBase;
  20 import org.opendaylight.mdsal.binding.runtime.api.IdentityRuntimeType;
  21 import org.opendaylight.yangtools.yang.model.api.stmt.BaseEffectiveStatement;
  22 import org.opendaylight.yangtools.yang.model.api.stmt.IdentityEffectiveStatement;
  23 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
  24
  25 /**
  26  * Generator corresponding to a {@code identity} statement.
  27  */
  28 public final class IdentityGenerator
  29         extends AbstractDependentGenerator<IdentityEffectiveStatement, IdentityRuntimeType> {
  30     private List<IdentityGenerator> baseIdentities = null;
  31
  32     IdentityGenerator(final IdentityEffectiveStatement statement, final AbstractCompositeGenerator<?, ?> parent) {
  33         super(statement, parent);
  34     }
  35
  36     @Override
  37     StatementNamespace namespace() {
  38         return StatementNamespace.IDENTITY;
  39     }
  40
  41     @Override
  42     void pushToInference(final SchemaInferenceStack dataTree) {
  43         throw new UnsupportedOperationException("Cannot push " + statement() + " to data tree");
  44     }
  45
  46     @Override
  47     void linkDependencies(final GeneratorContext context) {
  48         baseIdentities = statement().streamEffectiveSubstatements(BaseEffectiveStatement.class)
  49             .map(BaseEffectiveStatement::argument)
  50             .map(context::resolveIdentity)
  51             .collect(Collectors.toUnmodifiableList());
  52     }
  53
  54     @Override
  55     GeneratedType createTypeImpl(final TypeBuilderFactory builderFactory) {
  56         final GeneratedTypeBuilder builder = builderFactory.newGeneratedTypeBuilder(typeName());
  57         if (!baseIdentities.isEmpty()) {
  58             for (IdentityGenerator baseIdentity : baseIdentities) {
  59                 builder.addImplementsType(baseIdentity.getGeneratedType(builderFactory));
  60             }
  61         } else {
  62             builder.addImplementsType(BASE_IDENTITY);
  63         }
  64
  65         final ModuleGenerator module = currentModule();
  66         module.addQNameConstant(builder, localName());
  67
  68         builderFactory.addCodegenInformation(module, statement(), builder);
  69         builder.setModuleName(module.statement().argument().getLocalName());
  70 //        builder.setSchemaPath(identity.getPath());
  71
  72         return builder.build();
  73     }
  74
  75     @Override
  76     GeneratedType runtimeJavaType() {
  77         return generatedType().orElse(null);
  78     }
  79
  80     @Override
  81     IdentityRuntimeType createExternalRuntimeType(final Type type) {
  82         verify(type instanceof GeneratedType, "Unexpected type %s", type);
  83         return new DefaultIdentityRuntimeType((GeneratedType) type, statement());
  84     }
  85
  86     @Override
  87     IdentityRuntimeType createInternalRuntimeType(final AugmentResolver resolver,
  88             final IdentityEffectiveStatement statement, final Type type) {
  89         // 'identity' statements are not part of schema tree and hence should never an internal reference
  90         throw new UnsupportedOperationException("Should never be called");
  91     }
  92
  93     @Override
  94     void addAsGetterMethod(final GeneratedTypeBuilderBase<?> builder, final TypeBuilderFactory builderFactory) {
  95         // identities are a separate concept
  96     }
  97 }