/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.isis.core.progmodel.facets.members.describedas.annotation;
import org.apache.isis.applib.annotation.DescribedAs;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facetapi.FacetUtil;
import org.apache.isis.core.metamodel.facetapi.FeatureType;
import org.apache.isis.core.metamodel.facets.AnnotationBasedFacetFactoryAbstract;
import org.apache.isis.core.metamodel.facets.describedas.DescribedAsFacet;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
public class DescribedAsAnnotationOnMemberFacetFactory extends AnnotationBasedFacetFactoryAbstract {
public DescribedAsAnnotationOnMemberFacetFactory() {
super(FeatureType.MEMBERS);
}
@Override
public void process(final ProcessMethodContext processMethodContext) {
// look for annotation on the property
final DescribedAs annotation = getAnnotation(processMethodContext.getMethod(), DescribedAs.class);
DescribedAsFacet facet = create(annotation, processMethodContext.getFacetHolder());
if (facet != null) {
FacetUtil.addFacet(facet);
return;
}
// otherwise, look for annotation on the type
final Class<?> returnType = processMethodContext.getMethod().getReturnType();
final DescribedAsFacet returnTypeDescribedAsFacet = getDescribedAsFacet(returnType);
if (returnTypeDescribedAsFacet != null) {
facet =
new DescribedAsFacetForMemberDerivedFromType(returnTypeDescribedAsFacet,
processMethodContext.getFacetHolder());
FacetUtil.addFacet(facet);
}
}
private DescribedAsFacet create(final DescribedAs annotation, final FacetHolder holder) {
return annotation == null ? null : new DescribedAsFacetAnnotationOnMember(annotation.value(), holder);
}
private DescribedAsFacet getDescribedAsFacet(final Class<?> type) {
final ObjectSpecification paramTypeSpec = getSpecificationLookup().loadSpecification(type);
return paramTypeSpec.getFacet(DescribedAsFacet.class);
}
}