| /* DateType.java -- |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.xml.validation.datatype; |
| |
| import java.util.Calendar; |
| import java.util.GregorianCalendar; |
| import java.util.TimeZone; |
| import javax.xml.XMLConstants; |
| import javax.xml.namespace.QName; |
| import org.relaxng.datatype.DatatypeException; |
| import org.relaxng.datatype.ValidationContext; |
| |
| /** |
| * The XML Schema date type. |
| * |
| * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> |
| */ |
| final class DateType |
| extends AtomicSimpleType |
| { |
| |
| static final int[] CONSTRAINING_FACETS = { |
| Facet.PATTERN, |
| Facet.ENUMERATION, |
| Facet.WHITESPACE, |
| Facet.MAX_INCLUSIVE, |
| Facet.MAX_EXCLUSIVE, |
| Facet.MIN_INCLUSIVE, |
| Facet.MIN_EXCLUSIVE |
| }; |
| |
| DateType() |
| { |
| super(new QName(XMLConstants.W3C_XML_SCHEMA_NS_URI, "date"), |
| TypeLibrary.ANY_SIMPLE_TYPE); |
| } |
| |
| public int[] getConstrainingFacets() |
| { |
| return CONSTRAINING_FACETS; |
| } |
| |
| public void checkValid(String value, ValidationContext context) |
| throws DatatypeException |
| { |
| super.checkValid(value, context); |
| int len = value.length(); |
| int state = 0; |
| int start = 0; |
| for (int i = 0; i < len; i++) |
| { |
| char c = value.charAt(i); |
| if (c == '-' && i == 0) |
| { |
| start++; |
| continue; |
| } |
| if (c >= 0x30 && c <= 0x39) |
| continue; |
| switch (state) |
| { |
| case 0: // year |
| if (c == '-') |
| { |
| String year = value.substring(start, i); |
| if ("0000".equals(year) || year.length() < 4) |
| throw new DatatypeException(i, "invalid date value"); |
| state = 1; |
| start = i + 1; |
| continue; |
| } |
| break; |
| case 1: // month |
| if (c == '-') |
| { |
| if (i - start != 2) |
| throw new DatatypeException(i, "invalid date value"); |
| state = 2; |
| start = i + 1; |
| continue; |
| } |
| break; |
| } |
| throw new DatatypeException(i, "invalid date value"); |
| } |
| switch (state) |
| { |
| case 2: // day |
| if (len - start != 2) |
| throw new DatatypeException("invalid date value"); |
| break; |
| default: |
| throw new DatatypeException("invalid date value"); |
| } |
| } |
| |
| public Object createValue(String value, ValidationContext context) { |
| int len = value.length(); |
| int state = 0; |
| int start = 0; |
| Calendar cal = new GregorianCalendar(); |
| cal.set(Calendar.HOUR, 0); |
| cal.set(Calendar.MINUTE, 0); |
| cal.set(Calendar.SECOND, 0); |
| try |
| { |
| for (int i = 0; i < len; i++) |
| { |
| char c = value.charAt(i); |
| if (c == '-' && i == 0) |
| { |
| start++; |
| continue; |
| } |
| if (c >= 0x30 && c <= 0x39) |
| continue; |
| switch (state) |
| { |
| case 0: // year |
| if (c == '-') |
| { |
| cal.set(Calendar.YEAR, |
| Integer.parseInt(value.substring(0, i))); |
| state = 1; |
| start = i + 1; |
| continue; |
| } |
| break; |
| case 1: // month |
| if (c == '-') |
| { |
| cal.set(Calendar.MONTH, |
| Integer.parseInt(value.substring(start, i))); |
| state = 2; |
| start = i + 1; |
| continue; |
| } |
| break; |
| case 2: // day |
| if (c == 'T') |
| { |
| cal.set(Calendar.DATE, |
| Integer.parseInt(value.substring(start, i))); |
| state = 7; |
| start = i + 1; |
| continue; |
| } |
| break; |
| } |
| } |
| // end of input |
| if (len - start > 0 && state == 7) |
| { |
| // Timezone |
| String timezone = value.substring(len - start); |
| int i = timezone.indexOf(':'); |
| if (i == -1) |
| { |
| if ("Z".equals(timezone)) |
| timezone = "UTC"; |
| TimeZone tz = TimeZone.getTimeZone(timezone); |
| if (tz == null) |
| return null; |
| cal.set(Calendar.ZONE_OFFSET, tz.getRawOffset()); |
| } |
| else |
| { |
| String tzh = timezone.substring(0, i); |
| String tzm = timezone.substring(i + 1); |
| int offset = Integer.parseInt(tzh) * 360000; |
| if (offset < 0) |
| offset -= Integer.parseInt(tzm) * 60000; |
| else |
| offset += Integer.parseInt(tzm) * 60000; |
| cal.set(Calendar.ZONE_OFFSET, offset); |
| } |
| } |
| return cal.getTime(); |
| } |
| catch (NumberFormatException e) |
| { |
| return null; |
| } |
| } |
| |
| } |
| |