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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation. Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package java.sql;

import java.time.Instant;
import java.time.LocalDate;

/**
 * <P>A thin wrapper around a millisecond value that allows
 * JDBC to identify this as an SQL <code>DATE</code> value. A
 * milliseconds value represents the number of milliseconds that
 * have passed since January 1, 1970 00:00:00.000 GMT.
 * <p>
 * To conform with the definition of SQL <code>DATE</code>, the
 * millisecond values wrapped by a <code>java.sql.Date</code> instance
 * must be 'normalized' by setting the
 * hours, minutes, seconds, and milliseconds to zero in the particular
 * time zone with which the instance is associated.
 *
 * @since 1.1
 */
public class Date extends java.util.Date {

 /**
 * Constructs a <code>Date</code> object initialized with the given
 * year, month, and day.
 * <P>
 * The result is undefined if a given argument is out of bounds.
 *
 * @param year the year minus 1900; must be 0 to 8099. (Note that
 * 8099 is 9999 minus 1900.)
 * @param month 0 to 11
 * @param day 1 to 31
 * @deprecated instead use the constructor <code>Date(long date)</code>
 */
 @Deprecated(since="1.2")
 public Date(int year, int month, int day) {
 super(year, month, day);
 }

 /**
 * Constructs a <code>Date</code> object using the given milliseconds
 * time value. If the given milliseconds value contains time
 * information, the driver will set the time components to the
 * time in the default time zone (the time zone of the Java virtual
 * machine running the application) that corresponds to zero GMT.
 *
 * @param date milliseconds since January 1, 1970, 00:00:00 GMT not
 * to exceed the milliseconds representation for the year 8099.
 * A negative number indicates the number of milliseconds
 * before January 1, 1970, 00:00:00 GMT.
 */
 public Date(long date) {
 // If the millisecond date value contains time info, mask it out.
 super(date);

 }

 /**
 * Sets an existing <code>Date</code> object
 * using the given milliseconds time value.
 * If the given milliseconds value contains time information,
 * the driver will set the time components to the
 * time in the default time zone (the time zone of the Java virtual
 * machine running the application) that corresponds to zero GMT.
 *
 * @param date milliseconds since January 1, 1970, 00:00:00 GMT not
 * to exceed the milliseconds representation for the year 8099.
 * A negative number indicates the number of milliseconds
 * before January 1, 1970, 00:00:00 GMT.
 */
 public void setTime(long date) {
 // If the millisecond date value contains time info, mask it out.
 super.setTime(date);
 }

 /**
 * Converts a string in JDBC date escape format to
 * a <code>Date</code> value.
 *
 * @param s a <code>String</code> object representing a date in
 * in the format "yyyy-[m]m-[d]d". The leading zero for <code>mm</code>
 * and <code>dd</code> may also be omitted.
 * @return a <code>java.sql.Date</code> object representing the
 * given date
 * @throws IllegalArgumentException if the date given is not in the
 * JDBC date escape format (yyyy-[m]m-[d]d)
 */
 public static Date valueOf(String s) {
 if (s == null) {
 throw new java.lang.IllegalArgumentException();
 }
 final int YEAR_LENGTH = 4;
 final int MONTH_LENGTH = 2;
 final int DAY_LENGTH = 2;
 final int MAX_MONTH = 12;
 final int MAX_DAY = 31;
 Date d = null;

 int firstDash = s.indexOf('-');
 int secondDash = s.indexOf('-', firstDash + 1);
 int len = s.length();

 if ((firstDash > 0) && (secondDash > 0) && (secondDash < len - 1)) {
 if (firstDash == YEAR_LENGTH &&
 (secondDash - firstDash > 1 && secondDash - firstDash <= MONTH_LENGTH + 1) &&
 (len - secondDash > 1 && len - secondDash <= DAY_LENGTH + 1)) {
 int year = Integer.parseInt(s, 0, firstDash, 10);
 int month = Integer.parseInt(s, firstDash + 1, secondDash, 10);
 int day = Integer.parseInt(s, secondDash + 1, len, 10);

 if ((month >= 1 && month <= MAX_MONTH) && (day >= 1 && day <= MAX_DAY)) {
 d = new Date(year - 1900, month - 1, day);
 }
 }
 }
 if (d == null) {
 throw new java.lang.IllegalArgumentException();
 }

 return d;

 }


 /**
 * Formats a date in the date escape format yyyy-mm-dd.
 *
 * @return a String in yyyy-mm-dd format
 */
 @SuppressWarnings("deprecation")
 public String toString () {
 int year = super.getYear() + 1900;
 int month = super.getMonth() + 1;
 int day = super.getDate();

 char buf[] = new char[10];
 formatDecimalInt(year, buf, 0, 4);
 buf[4] = '-';
 Date.formatDecimalInt(month, buf, 5, 2);
 buf[7] = '-';
 Date.formatDecimalInt(day, buf, 8, 2);

 return new String(buf);
 }

 /**
 * Formats an unsigned integer into a char array in decimal output format.
 * Numbers will be zero-padded or truncated if the string representation
 * of the integer is smaller than or exceeds len, respectively.
 *
 * Should consider moving this to Integer and expose it through
 * JavaLangAccess similar to Integer::formatUnsignedInt
 * @param val Value to convert
 * @param buf Array containing converted value
 * @param offset Starting pos in buf
 * @param len length of output value
 */
 static void formatDecimalInt(int val, char[] buf, int offset, int len) {
 int charPos = offset + len;
 do {
 buf[--charPos] = (char)('0' + (val % 10));
 val /= 10;
 } while (charPos > offset);
 }

 // Override all the time operations inherited from java.util.Date;

 /**
 * This method is deprecated and should not be used because SQL Date
 * values do not have a time component.
 *
 * @deprecated
 * @exception java.lang.IllegalArgumentException if this method is invoked
 * @see #setHours
 */
 @Deprecated(since="1.2")
 public int getHours() {
 throw new java.lang.IllegalArgumentException();
 }

 /**
 * This method is deprecated and should not be used because SQL Date
 * values do not have a time component.
 *
 * @deprecated
 * @exception java.lang.IllegalArgumentException if this method is invoked
 * @see #setMinutes
 */
 @Deprecated(since="1.2")
 public int getMinutes() {
 throw new java.lang.IllegalArgumentException();
 }

 /**
 * This method is deprecated and should not be used because SQL Date
 * values do not have a time component.
 *
 * @deprecated
 * @exception java.lang.IllegalArgumentException if this method is invoked
 * @see #setSeconds
 */
 @Deprecated(since="1.2")
 public int getSeconds() {
 throw new java.lang.IllegalArgumentException();
 }

 /**
 * This method is deprecated and should not be used because SQL Date
 * values do not have a time component.
 *
 * @deprecated
 * @exception java.lang.IllegalArgumentException if this method is invoked
 * @see #getHours
 */
 @Deprecated(since="1.2")
 public void setHours(int i) {
 throw new java.lang.IllegalArgumentException();
 }

 /**
 * This method is deprecated and should not be used because SQL Date
 * values do not have a time component.
 *
 * @deprecated
 * @exception java.lang.IllegalArgumentException if this method is invoked
 * @see #getMinutes
 */
 @Deprecated(since="1.2")
 public void setMinutes(int i) {
 throw new java.lang.IllegalArgumentException();
 }

 /**
 * This method is deprecated and should not be used because SQL Date
 * values do not have a time component.
 *
 * @deprecated
 * @exception java.lang.IllegalArgumentException if this method is invoked
 * @see #getSeconds
 */
 @Deprecated(since="1.2")
 public void setSeconds(int i) {
 throw new java.lang.IllegalArgumentException();
 }

 /**
 * Private serial version unique ID to ensure serialization
 * compatibility.
 */
 static final long serialVersionUID = 1511598038487230103L;

 /**
 * Obtains an instance of {@code Date} from a {@link LocalDate} object
 * with the same year, month and day of month value as the given
 * {@code LocalDate}.
 * <p>
 * The provided {@code LocalDate} is interpreted as the local date
 * in the local time zone.
 *
 * @param date a {@code LocalDate} to convert
 * @return a {@code Date} object
 * @exception NullPointerException if {@code date} is null
 * @since 1.8
 */
 @SuppressWarnings("deprecation")
 public static Date valueOf(LocalDate date) {
 return new Date(date.getYear() - 1900, date.getMonthValue() -1,
 date.getDayOfMonth());
 }

 /**
 * Creates a {@code LocalDate} instance using the year, month and day
 * from this {@code Date} object.
 * @return a {@code LocalDate} object representing the same date value
 *
 * @since 1.8
 */
 @SuppressWarnings("deprecation")
 public LocalDate toLocalDate() {
 return LocalDate.of(getYear() + 1900, getMonth() + 1, getDate());
 }

 /**
 * This method always throws an UnsupportedOperationException and should
 * not be used because SQL {@code Date} values do not have a time
 * component.
 *
 * @exception java.lang.UnsupportedOperationException if this method is invoked
 */
 @Override
 public Instant toInstant() {
 throw new java.lang.UnsupportedOperationException();
 }
}