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*
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* please contact info@exolab.org.
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* 4. Products derived from this Software may not be called "Exolab"
* nor may "Exolab" appear in their names without prior written
* permission of Intalio, Inc. Exolab is a registered
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*
* 5. Due credit should be given to the Exolab Project
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*
* THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Copyright 2001 (C) Intalio, Inc. All Rights Reserved.
*
* $Id$
* Date Author Changes
* 04/18/2002 Arnaud constructor with string
* 05/24/2001 Arnaud Blandin Created
*/
package org.exolab.castor.types;
import java.text.SimpleDateFormat;
import java.text.ParseException;
/**
* Describe an XML schema gYearMonth type.
* <p>The format is defined by W3C XML Schema Recommendation and ISO8601
* i.e <tt>(-)CCYY-MM(Z|(+|-)hh:mm)</tt>
* @author <a href="mailto:blandin@intalio.com">Arnaud Blandin</a>
* @author <a href="mailto:edward.kuns@aspect.com">Edward Kuns</a>
* @version $Revision$
*/
public class GYearMonth extends DateTimeBase {
/** SerialVersionUID */
private static final long serialVersionUID = -8864050276805766473L;
/** The gYearMonth SimpleDateFormat string. */
private static final String YEARMONTH_FORMAT = "yyyy-MM";
/** Prefix of any complaint we make. */
private static final String BAD_GYEARMONTH = "Bad gYearMonth format: ";
/**
* public only for the generated source code
*/
public GYearMonth() {
// Nothing to do
}
/**
* Instantiates a new gYearMonth given the value
* of the month and the value of the day.
* @param century the month value
* @param year the year value
* @param month the month value
*/
public GYearMonth(short century, short year, short month) {
this.setCentury(century);
this.setYear(year);
this.setMonth(month);
}
/**
* Instantiates a new gYearMonth given the value
* of the month and the value of the day.
* @param year the year value
* @param month the month value
*/
public GYearMonth(int year, int month) {
short century = (short) (year/100);
year = year % 100;
setCentury(century);
setYear((short)year);
setMonth((short)month);
}
/**
* Constructs a XML Schema GYearMonth instance given all the values of
* the different fields.
* By default a GYearMonth is not UTC and is local.
* @param values an array of shorts that represent the different fields of Time.
*/
public GYearMonth(short[] values) {
setValues(values);
}
/**
* Constructs a GYearMonth given a string representation
* @param gyearMonth the string representation of the GYearMonth to instantiate
* @throws ParseException a parse exception is thrown if the string to parse
* does not follow the rigth format (see the description
* of this class)
*/
public GYearMonth(String gyearMonth) throws ParseException {
parseGYearMonthInternal(gyearMonth, this);
}
/**
* Sets all the fields by reading the values in an array
* <p>
* if a Time Zone is specificied it has to be set by using
* {@link DateTimeBase#setZone(short, short) setZone}.
*
* @param values
* an array of shorts with the values the array is supposed to be
* of length 3 and ordered like the following:
* <ul>
* <li>century</li>
* <li>year</li>
* <li>month</li>
* </ul>
*/
public void setValues(short[] values) {
if (values.length != 3) {
throw new IllegalArgumentException("GYearMonth#setValues: not the right number of values");
}
this.setCentury(values[0]);
this.setYear(values[1]);
this.setMonth(values[2]);
}
/**
* Returns an array of short with all the fields that describe
* this gYearMonth type.
* <p>Note:the time zone is not included.
* @return an array of short with all the fields that describe
* this Date type.
*/
public short[] getValues() {
short[] result = new short[3];
result[0] = this.getCentury();
result[1] = this.getYear();
result[2] = this.getMonth();
return result;
} //getValues
/**
* converts this gYearMonth into a local java Date.
* @return a local date representing this Date.
*/
public java.util.Date toDate() {
SimpleDateFormat df = new SimpleDateFormat(YEARMONTH_FORMAT);
setDateFormatTimeZone(df);
java.util.Date date = null;
try {
date = df.parse(this.toString());
} catch (ParseException e) {
//this can't happen since toString() should return the proper string format
e.printStackTrace();
return null;
}
return date;
} //toDate()
/**
* convert this gYearMonth to a string
* The format is defined by W3C XML Schema recommendation and ISO8601
* i.e (+|-)CCYY-MM(Z|(+|-)hh:mm)
* @return a string representing this Date
*/
public String toString() {
StringBuffer result = new StringBuffer();
if (isNegative()) {
result.append('-');
}
if ((this.getCentury()/10) == 0) {
result.append(0);
}
result.append(this.getCentury());
if ((this.getYear()/10) == 0) {
result.append(0);
}
result.append(this.getYear());
result.append('-');
if ((this.getMonth()/10) == 0) {
result.append(0);
}
result.append(this.getMonth());
appendTimeZoneString(result);
return result.toString();
} //toString
/**
* parse a String and convert it into an java.lang.Object
* @param str the string to parse
* @return an Object represented by the string
* @throws ParseException a parse exception is thrown if the string to parse
* does not follow the rigth format (see the description
* of this class)
*/
public static Object parse(String str) throws ParseException {
return parseGYearMonth(str);
}
/**
* parse a String and convert it into a gYearMonth.
* @param str the string to parse
* @return the Date represented by the string
* @throws ParseException a parse exception is thrown if the string to parse
* does not follow the rigth format (see the description
* of this class)
*/
public static GYearMonth parseGYearMonth(String str) throws ParseException {
GYearMonth result = new GYearMonth();
return parseGYearMonthInternal(str, result);
}
private static GYearMonth parseGYearMonthInternal(String str, GYearMonth result) throws ParseException {
if (str == null) {
throw new IllegalArgumentException("The string to be parsed must not be null.");
}
if (result == null) {
result = new GYearMonth();
}
char[] chars = str.toCharArray();
int idx = 0;
if (chars[idx] == '-') {
result.setNegative();
idx++;
}
// Century
if (!Character.isDigit(chars[idx]) || !Character.isDigit(chars[idx + 1])
|| !Character.isDigit(chars[idx + 2]) || !Character.isDigit(chars[idx + 3])) {
throw new ParseException(BAD_GYEARMONTH+str+"\nA gYearMonth must follow the pattern CCYY(Z|((+|-)hh:mm)).",idx);
}
short value1 = (short) ((chars[idx] - '0') * 10 + (chars[idx+1] - '0'));
short value2 = (short) ((chars[idx+2] - '0') * 10 + (chars[idx+3] - '0'));
if (value1 == 0 && value2 == 0) {
throw new ParseException(BAD_GYEARMONTH+str+"\n'0000' is not allowed as a year.", idx);
}
result.setCentury(value1);
result.setYear(value2);
idx += 4;
if (chars[idx] != '-') {
throw new ParseException(BAD_GYEARMONTH+str+"\nA gYearMonth must follow the pattern CCYY(Z|((+|-)hh:mm)).",idx);
}
idx++;
// Month
if (!Character.isDigit(chars[idx]) || !Character.isDigit(chars[idx + 1])) {
throw new ParseException(BAD_GYEARMONTH+str+"\nThe Month must be 2 digits long", idx);
}
value1 = (short) ((chars[idx] - '0') * 10 + (chars[idx+1] - '0'));
result.setMonth(value1);
idx += 2;
parseTimeZone(str, result, chars, idx, BAD_GYEARMONTH);
return result;
} //parse
/////////////////////////// DISALLOWED METHODS ///////////////////////////
public boolean hasDay() {
return false;
}
public short getDay() {
String err = "org.exolab.castor.types.GYearMonth does not have a Day field.";
throw new UnsupportedOperationException(err);
}
public void setDay(short day) {
String err = "org.exolab.castor.types.GYearMonth does not have a Day field.";
throw new UnsupportedOperationException(err);
}
public boolean hasHour() {
return false;
}
public short getHour() {
String err = "org.exolab.castor.types.GYearMonth does not have an Hour field.";
throw new UnsupportedOperationException(err);
}
public void setHour(short hour) {
String err = "org.exolab.castor.types.GYearMonth does not have an Hour field.";
throw new UnsupportedOperationException(err);
}
public boolean hasMinute() {
return false;
}
public short getMinute() {
String err = "org.exolab.castor.types.GYearMonth does not have a Minute field.";
throw new UnsupportedOperationException(err);
}
public void setMinute(short minute) {
String err = "org.exolab.castor.types.GYearMonth does not have a Minute field.";
throw new UnsupportedOperationException(err);
}
public boolean hasSeconds() {
return false;
}
public short getSeconds() {
String err = "org.exolab.castor.types.GYearMonth does not have a Seconds field.";
throw new UnsupportedOperationException(err);
}
public void setSecond(short second) {
String err = "org.exolab.castor.types.GYearMonth does not have a Seconds field.";
throw new UnsupportedOperationException(err);
}
public boolean hasMilli() {
return false;
}
public short getMilli() {
String err = "org.exolab.castor.types.GYearMonth does not have a Milliseconds field.";
throw new UnsupportedOperationException(err);
}
public void setMilliSecond(short millisecond) {
String err = "org.exolab.castor.types.GYearMonth does not have a Milliseconds field.";
throw new UnsupportedOperationException(err);
}
}