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.command.annotation;
021
022import org.apache.isis.applib.annotation.Command;
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.command.CommandFacet;
029import org.apache.isis.core.progmodel.facets.actions.command.CommandFacetAbstract.Enablement;
030import org.apache.isis.core.progmodel.facets.actions.invoke.ActionInvocationFacetFactory;
031
032/**
033 * {@link CommandFacet} can also be installed via a naming convention, see
034 * {@link ActionInvocationFacetFactory}.
035 */
036public class CommandAnnotationFacetFactory extends FacetFactoryAbstract {
037
038    public CommandAnnotationFacetFactory() {
039        super(FeatureType.ACTIONS_ONLY);
040    }
041
042    @Override
043    public void process(final ProcessMethodContext processMethodContext) {
044        final Command annotation = Annotations.getAnnotation(processMethodContext.getMethod(), Command.class);
045        FacetUtil.addFacet(create(annotation, processMethodContext.getFacetHolder()));
046    }
047
048    private CommandFacet create(final Command annotation, final FacetHolder holder) {
049        return annotation == null 
050                ? null 
051                : new CommandFacetAnnotation(annotation.persistence(), annotation.executeIn(), Enablement.isDisabled(annotation.disabled()), holder);
052    }
053
054}