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Diffstat (limited to 'gnu/xml/validation/datatype/DateType.java')
| -rw-r--r-- | gnu/xml/validation/datatype/DateType.java | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/gnu/xml/validation/datatype/DateType.java b/gnu/xml/validation/datatype/DateType.java new file mode 100644 index 000000000..6a4e1d771 --- /dev/null +++ b/gnu/xml/validation/datatype/DateType.java @@ -0,0 +1,222 @@ +/* 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; + } + } + +} + |