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.param.validate.regexannot;
021
022import java.util.regex.Pattern;
023
024import org.apache.isis.core.metamodel.facetapi.FacetHolder;
025import org.apache.isis.core.progmodel.facets.object.regex.RegExFacetAbstract;
026
027public class RegExFacetAnnotationForParameter extends RegExFacetAbstract {
028
029    private final Pattern pattern;
030
031    public RegExFacetAnnotationForParameter(final String validation, final String format, final boolean caseSensitive, final FacetHolder holder) {
032        super(validation, format, caseSensitive, holder);
033        pattern = Pattern.compile(validation(), patternFlags());
034    }
035
036    @Override
037    public String format(final String text) {
038        if (text == null) {
039            return "<not a string>";
040        }
041        if (format() == null || format().length() == 0) {
042            return text;
043        }
044        return pattern.matcher(text).replaceAll(format());
045    }
046
047    @Override
048    public boolean doesNotMatch(final String text) {
049        if (text == null) {
050            return true;
051        }
052        return !pattern.matcher(text).matches();
053    }
054
055    private int patternFlags() {
056        return !caseSensitive() ? Pattern.CASE_INSENSITIVE : 0;
057    }
058
059}