001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019
020package org.apache.isis.core.progmodel.facets.object.immutable.annotation;
021
022import org.apache.isis.applib.annotation.Immutable;
023import org.apache.isis.core.metamodel.facetapi.FacetHolder;
024import org.apache.isis.core.metamodel.facetapi.FacetUtil;
025import org.apache.isis.core.metamodel.facetapi.FeatureType;
026import org.apache.isis.core.metamodel.facets.Annotations;
027import org.apache.isis.core.metamodel.facets.FacetFactoryAbstract;
028import org.apache.isis.core.metamodel.facets.FacetedMethod;
029import org.apache.isis.core.metamodel.facets.object.immutable.ImmutableFacet;
030import org.apache.isis.core.metamodel.spec.ObjectSpecification;
031
032public class ImmutableAnnotationFacetFactory extends FacetFactoryAbstract {
033
034    public ImmutableAnnotationFacetFactory() {
035        super(FeatureType.EVERYTHING_BUT_PARAMETERS);
036    }
037
038    @Override
039    public void process(final ProcessClassContext processClassContaxt) {
040        final Immutable annotation = Annotations.getAnnotation(processClassContaxt.getCls(), Immutable.class);
041        FacetUtil.addFacet(create(annotation, processClassContaxt.getFacetHolder()));
042    }
043
044    @Override
045    public void process(final ProcessMethodContext processMethodContext) {
046        final FacetedMethod member = processMethodContext.getFacetHolder();
047        final Class<?> owningClass = processMethodContext.getCls();
048        final ObjectSpecification owningSpec = getSpecificationLoader().loadSpecification(owningClass);
049        final ImmutableFacet facet = owningSpec.getFacet(ImmutableFacet.class);
050        if (facet != null) {
051            facet.copyOnto(member);
052        }
053    }
054
055    private ImmutableFacet create(final Immutable annotation, final FacetHolder holder) {
056        return annotation == null ? null : new ImmutableFacetAnnotation(annotation.value(), holder);
057    }
058
059}