package com.bush.util;

import java.util.Date;
import java.text.*;

/**
 * Useful Date utility methods not found in java.lang.Boolean
 *
 * @author Daniel Bush
 */
public class DateUtil {

  private DateUtil() {}

  /**
   * Convert the specified {@link java.util.Date} into a {@link java.sql.Date}.
   *
   * @param date a Date value
   * @return a java.sql.Date value
   */
  public static java.sql.Date convert(Date date) {
    return date != null ? new java.sql.Date(date.getTime()) : null;
  }

  /**
   * Convert the specified {@link java.sql.Date} into a {@link java.util.Date}.
   *
   * @param timestamp a java.sql.Date value
   * @return a Date value
   */
  public static Date convert(java.sql.Date timestamp) {
    return timestamp != null ? new Date(timestamp.getTime()) : null;
  }

  /**
   * Convert the specified {@link java.util.Date} into a {@link java.sql.Timestamp}.
   *
   * @param date a Date value
   * @return a java.sql.Timestamp value
   */
  public static java.sql.Timestamp convertToTimestamp(Date date) {
    return date != null ? new java.sql.Timestamp(date.getTime()) : null;
  }

  /**
   * Convert the specified timestamp into a date.
   *
   * @param timestamp a java.sql.Timestamp value
   * @return a Date value
   */
  public static Date convertToDate(java.sql.Timestamp timestamp) {
    return timestamp != null ? new Date(timestamp.getTime()) : null;
  }

  /**
   * Give me a String and a pattern and I will try to give you the Date representation.
   *
   * @param date a String value
   * @param pattern a String value
   * @return a Date value
   * @exception ParseException if an error occurs
   */
  public static Date parse(String date, String pattern) throws ParseException {
    SimpleDateFormat sdf = new SimpleDateFormat(pattern);
    return sdf.parse(date);
  }

  /**
   * Give me a Date and a pattern and I will try to give you the String representation.
   *
   * @param date a Date value
   * @param pattern a String value
   * @return a String value
   * @exception ParseException if an error occurs
   */
  public static String format(Date date, String pattern) throws ParseException {
    SimpleDateFormat sdf = new SimpleDateFormat(pattern);
    return sdf.format(date);
  } 

}

this