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    
015    package org.apache.tapestry.form.validator;
016    
017    import java.util.Date;
018    
019    import org.apache.tapestry.form.IFormComponent;
020    import org.apache.tapestry.form.ValidationMessages;
021    import org.apache.tapestry.valid.ValidationConstraint;
022    import org.apache.tapestry.valid.ValidationStrings;
023    import 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     */
031    public 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    }