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.actions.debug.annotation;
021
022import org.apache.isis.applib.annotation.Debug;
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.actions.debug.DebugFacet;
029import org.apache.isis.core.progmodel.facets.actions.invoke.ActionInvocationFacetFactory;
030
031/**
032 * {@link DebugFacet} can also be installed via a naming convention, see
033 * {@link ActionInvocationFacetFactory}.
034 */
035public class DebugAnnotationFacetFactory extends FacetFactoryAbstract {
036
037    public DebugAnnotationFacetFactory() {
038        super(FeatureType.ACTIONS_ONLY);
039    }
040
041    @Override
042    public void process(final ProcessMethodContext processMethodContext) {
043        final Debug annotation = Annotations.getAnnotation(processMethodContext.getMethod(), Debug.class);
044        FacetUtil.addFacet(create(annotation, processMethodContext.getFacetHolder()));
045    }
046
047    private DebugFacet create(final Debug annotation, final FacetHolder holder) {
048        return annotation == null ? null : new DebugFacetAnnotation(holder);
049    }
050
051}