| // Copyright 2007, 2008 The Apache Software Foundation |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package org.apache.tapestry.validator; |
| |
| import org.apache.tapestry.Field; |
| import org.apache.tapestry.MarkupWriter; |
| import org.apache.tapestry.ValidationException; |
| import org.apache.tapestry.ioc.MessageFormatter; |
| import org.apache.tapestry.services.FormSupport; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| public class Regexp extends AbstractValidator<Pattern, String> |
| { |
| public Regexp() |
| { |
| super(Pattern.class, String.class, "regexp"); |
| } |
| |
| private String buildMessage(MessageFormatter formatter, Field field, Pattern constraintValue) |
| { |
| return formatter.format(constraintValue.toString(), field.getLabel()); |
| } |
| |
| public void render(Field field, Pattern constraintValue, MessageFormatter formatter, MarkupWriter writer, |
| FormSupport formSupport) |
| { |
| formSupport.addValidation(field, "regexp", buildMessage(formatter, field, constraintValue), |
| constraintValue.pattern()); |
| } |
| |
| public void validate(Field field, Pattern constraintValue, MessageFormatter formatter, String value) |
| throws ValidationException |
| { |
| Matcher matcher = constraintValue.matcher(value); |
| |
| if (!matcher.matches()) throw new ValidationException(buildMessage(formatter, field, constraintValue)); |
| } |
| |
| } |