/*
* 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.metamodel.facets.object.facets.annotation;
import org.apache.isis.applib.annotation.Facets;
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.Annotations;
import org.apache.isis.core.metamodel.facets.FacetFactoryAbstract;
import org.apache.isis.core.metamodel.facets.object.facets.FacetsFacet;
public class FacetsFacetAnnotationFactory extends FacetFactoryAbstract {
public FacetsFacetAnnotationFactory() {
super(FeatureType.OBJECTS_ONLY);
}
@Override
public void process(final ProcessClassContext processClassContaxt) {
final Facets annotation = Annotations.getAnnotation(processClassContaxt.getCls(), Facets.class);
FacetUtil.addFacet(create(annotation, processClassContaxt.getFacetHolder()));
}
/**
* Returns a {@link FacetsFacet} impl provided that at least one valid
* {@link FacetsFacet#facetFactories() factory} was specified.
*/
private FacetsFacet create(final Facets annotation, final FacetHolder holder) {
if (annotation == null) {
return null;
}
final FacetsFacetAnnotation facetsFacetAnnotation = new FacetsFacetAnnotation(annotation, holder);
return facetsFacetAnnotation.facetFactories().length > 0 ? facetsFacetAnnotation : null;
}
}