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.properties.validate.regexannot;
021
022import org.apache.isis.applib.annotation.RegEx;
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.object.title.TitleFacet;
029import org.apache.isis.core.progmodel.facets.object.regex.RegExFacet;
030import org.apache.isis.core.progmodel.facets.object.regex.TitleFacetFormattedByRegex;
031
032public class RegExFacetAnnotationForPropertyFacetFactory extends FacetFactoryAbstract {
033
034    public RegExFacetAnnotationForPropertyFacetFactory() {
035        super(FeatureType.PROPERTIES_ONLY);
036    }
037
038    @Override
039    public void process(final ProcessMethodContext processMethodContext) {
040        final Class<?> returnType = processMethodContext.getMethod().getReturnType();
041        if (!Annotations.isString(returnType)) {
042            return;
043        }
044        final RegEx annotation = Annotations.getAnnotation(processMethodContext.getMethod(), RegEx.class);
045        addRegexFacetAndCorrespondingTitleFacet(processMethodContext.getFacetHolder(), annotation);
046    }
047
048    private void addRegexFacetAndCorrespondingTitleFacet(final FacetHolder holder, final RegEx annotation) {
049        final RegExFacet regexFacet = createRegexFacet(annotation, holder);
050        if (regexFacet == null) {
051            return;
052        }
053        FacetUtil.addFacet(regexFacet);
054
055        final TitleFacet titleFacet = createTitleFacet(regexFacet);
056        FacetUtil.addFacet(titleFacet);
057    }
058
059    private RegExFacet createRegexFacet(final RegEx annotation, final FacetHolder holder) {
060        if (annotation == null) {
061            return null;
062        }
063
064        final String validationExpression = annotation.validation();
065        final boolean caseSensitive = annotation.caseSensitive();
066        final String formatExpression = annotation.format();
067
068        return new RegExFacetAnnotationForProperty(validationExpression, formatExpression, caseSensitive, holder);
069    }
070
071    private TitleFacet createTitleFacet(final RegExFacet regexFacet) {
072        return new TitleFacetFormattedByRegex(regexFacet);
073    }
074
075}