DateFormatValidator.java

/**
 * 
 */
package org.javabuilders.handler.validation.validator;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import org.javabuilders.BuildResult;
import org.javabuilders.NamedObjectProperty;
import org.javabuilders.handler.validation.ValidationMessage;
import org.javabuilders.handler.validation.ValidationMessageList;

/**
 * Date format validator
 * 
 * @author Jacek Furmankiewicz
 */
public class DateFormatValidator extends AbstractValidator {

	private String dateFormat;
	private Locale locale;

	/**
	 * @param property
	 * @param label
	 * @param messageFormat
	 * @param result
	 */
	public DateFormatValidator(NamedObjectProperty property, String label, String messageFormat, BuildResult result,
			String dateFormat, Locale locale) {
		super(property, label, messageFormat, result);
		this.dateFormat = dateFormat;
		this.locale = locale;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.javabuilders.handler.validation.ICustomValidator#validate(java.lang
	 * .Object, org.javabuilders.handler.validation.ValidationMessageList)
	 */
	public void validate(Object value, ValidationMessageList list) {
		String sValue = getStringValue(value);

		SimpleDateFormat sdf = new SimpleDateFormat(dateFormat, locale);
		try {
			Date date = sdf.parse(sValue);

			if (!sdf.format(date).equals(sValue)) {
				// invalid date
				list.add(new ValidationMessage(getProperty(), getMessage(getLabel(), dateFormat)));
			}

		} catch (ParseException ex) {
			list.add(new ValidationMessage(getProperty(), getMessage(getLabel(), dateFormat)));
		}
	}

	/**
	 * @return the dateFormat
	 */
	public String getDateFormat() {
		return dateFormat;
	}

	/**
	 * @param dateFormat
	 *            the dateFormat to set
	 */
	public void setDateFormat(String dateFormat) {
		this.dateFormat = dateFormat;
	}

	/**
	 * @return the locale
	 */
	public Locale getLocale() {
		return locale;
	}

	/**
	 * @param locale
	 *            the locale to set
	 */
	public void setLocale(Locale locale) {
		this.locale = locale;
	}

}