private void registerVariableAccessor()

in core/optaplanner-core-impl/src/main/java/org/optaplanner/core/impl/domain/entity/descriptor/EntityDescriptor.java [264:332]
69 lines of code
16 McCabe index (conditional complexity)

    private void registerVariableAccessor(Class<? extends Annotation> variableAnnotationClass,
            MemberAccessor memberAccessor) {
        String memberName = memberAccessor.getName();
        if (declaredGenuineVariableDescriptorMap.containsKey(memberName)
                || declaredShadowVariableDescriptorMap.containsKey(memberName)) {
            VariableDescriptor<Solution_> duplicate = declaredGenuineVariableDescriptorMap.get(memberName);
            if (duplicate == null) {
                duplicate = declaredShadowVariableDescriptorMap.get(memberName);
            }
            throw new IllegalStateException("The entityClass (" + entityClass
                    + ") has a @" + variableAnnotationClass.getSimpleName()
                    + " annotated member (" + memberAccessor
                    + ") that is duplicated by another member for variableDescriptor (" + duplicate + ").\n"
                    + "Maybe the annotation is defined on both the field and its getter.");
        }
        if (variableAnnotationClass.equals(PlanningVariable.class)) {
            GenuineVariableDescriptor<Solution_> variableDescriptor = new BasicVariableDescriptor<>(
                    this, memberAccessor);
            declaredGenuineVariableDescriptorMap.put(memberName, variableDescriptor);
        } else if (variableAnnotationClass.equals(PlanningListVariable.class)) {
            if (List.class.isAssignableFrom(memberAccessor.getType())) {
                GenuineVariableDescriptor<Solution_> variableDescriptor = new ListVariableDescriptor<>(
                        this, memberAccessor);
                declaredGenuineVariableDescriptorMap.put(memberName, variableDescriptor);
            } else {
                throw new IllegalStateException("The entityClass (" + entityClass
                        + ") has a @" + PlanningListVariable.class.getSimpleName()
                        + " annotated member (" + memberAccessor
                        + ") that has an unsupported type (" + memberAccessor.getType() + ").\n"
                        + "Maybe use " + List.class.getCanonicalName() + ".");
            }
        } else if (variableAnnotationClass.equals(InverseRelationShadowVariable.class)) {
            ShadowVariableDescriptor<Solution_> variableDescriptor = new InverseRelationShadowVariableDescriptor<>(
                    this, memberAccessor);
            declaredShadowVariableDescriptorMap.put(memberName, variableDescriptor);
        } else if (variableAnnotationClass.equals(AnchorShadowVariable.class)) {
            ShadowVariableDescriptor<Solution_> variableDescriptor = new AnchorShadowVariableDescriptor<>(
                    this, memberAccessor);
            declaredShadowVariableDescriptorMap.put(memberName, variableDescriptor);
        } else if (variableAnnotationClass.equals(IndexShadowVariable.class)) {
            ShadowVariableDescriptor<Solution_> variableDescriptor = new IndexShadowVariableDescriptor<>(
                    this, memberAccessor);
            declaredShadowVariableDescriptorMap.put(memberName, variableDescriptor);
        } else if (variableAnnotationClass.equals(PreviousElementShadowVariable.class)) {
            PreviousElementShadowVariableDescriptor<Solution_> variableDescriptor =
                    new PreviousElementShadowVariableDescriptor<>(this, memberAccessor);
            declaredShadowVariableDescriptorMap.put(memberName, variableDescriptor);
        } else if (variableAnnotationClass.equals(NextElementShadowVariable.class)) {
            NextElementShadowVariableDescriptor<Solution_> variableDescriptor =
                    new NextElementShadowVariableDescriptor<>(this, memberAccessor);
            declaredShadowVariableDescriptorMap.put(memberName, variableDescriptor);
        } else if (variableAnnotationClass.equals(ShadowVariable.class)
                || variableAnnotationClass.equals(ShadowVariable.List.class)) {
            ShadowVariableDescriptor<Solution_> variableDescriptor = new CustomShadowVariableDescriptor<>(
                    this, memberAccessor);
            declaredShadowVariableDescriptorMap.put(memberName, variableDescriptor);
        } else if (variableAnnotationClass.equals(PiggybackShadowVariable.class)) {
            ShadowVariableDescriptor<Solution_> variableDescriptor = new PiggybackShadowVariableDescriptor<>(
                    this, memberAccessor);
            declaredShadowVariableDescriptorMap.put(memberName, variableDescriptor);
        } else if (variableAnnotationClass.equals(CustomShadowVariable.class)) {
            ShadowVariableDescriptor<Solution_> variableDescriptor = new LegacyCustomShadowVariableDescriptor<>(
                    this, memberAccessor);
            declaredShadowVariableDescriptorMap.put(memberName, variableDescriptor);
        } else {
            throw new IllegalStateException("The variableAnnotationClass ("
                    + variableAnnotationClass + ") is not implemented.");
        }
    }