001// Copyright 2005 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry.form.validator;
016
017import java.util.Date;
018
019import org.apache.tapestry.form.IFormComponent;
020import org.apache.tapestry.form.ValidationMessages;
021import org.apache.tapestry.valid.ValidationConstraint;
022import org.apache.tapestry.valid.ValidationStrings;
023import org.apache.tapestry.valid.ValidatorException;
024
025/**
026 * Validates that the object, a Date, is not after a set maximum.
027 * 
028 * @author Howard Lewis Ship
029 * @since 4.0
030 */
031public class MaxDate extends BaseValidator
032{
033    private Date _maxDate;
034
035    public MaxDate()
036    {
037    }
038
039    public MaxDate(String initializer)
040    {
041        super(initializer);
042    }
043
044    public void validate(IFormComponent field, ValidationMessages messages, Object object)
045            throws ValidatorException
046    {
047        Date date = (Date) object;
048
049        if (date.after(_maxDate))
050            throw new ValidatorException(buildMessage(messages, field),
051                    ValidationConstraint.TOO_LARGE);
052
053    }
054
055    private String buildMessage(ValidationMessages messages, IFormComponent field)
056    {
057        return messages.formatValidationMessage(
058                getMessage(),
059                ValidationStrings.DATE_TOO_LATE,
060                new Object[]
061                { field.getDisplayName(), _maxDate });
062    }
063
064    public void setMaxDate(Date minDate)
065    {
066        _maxDate = minDate;
067    }
068
069}