| /* Base64BinaryType.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.Collections; |
| import java.util.Set; |
| import javax.xml.XMLConstants; |
| import javax.xml.namespace.QName; |
| import org.relaxng.datatype.DatatypeException; |
| import org.relaxng.datatype.ValidationContext; |
| |
| /** |
| * The XML Schema base64Binary type. |
| * |
| * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> |
| */ |
| final class Base64BinaryType |
| extends AtomicSimpleType |
| { |
| |
| static final String B64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + |
| "abcdefghijklmnopqrstuvwxyz0123456789+/"; |
| static final String B16 = "AEIMQUYcgkosw048"; |
| static final String B04 = "AQgw"; |
| |
| static final int[] CONSTRAINING_FACETS = { |
| Facet.LENGTH, |
| Facet.MIN_LENGTH, |
| Facet.MAX_LENGTH, |
| Facet.PATTERN, |
| Facet.ENUMERATION, |
| Facet.WHITESPACE |
| }; |
| |
| Base64BinaryType() |
| { |
| super(new QName(XMLConstants.W3C_XML_SCHEMA_NS_URI, "base64Binary"), |
| TypeLibrary.ANY_SIMPLE_TYPE); |
| } |
| |
| public int[] getConstrainingFacets() |
| { |
| return CONSTRAINING_FACETS; |
| } |
| |
| public void checkValid(String value, ValidationContext context) |
| throws DatatypeException |
| { |
| super.checkValid(value, context); |
| // TODO value = collapseWhitespace(value); |
| int len = value.length(); |
| try |
| { |
| for (int i = len - 1; i >= 0; ) |
| { |
| char c4 = value.charAt(i--); |
| if (c4 == ' ') |
| c4 = value.charAt(i--); |
| char c3 = value.charAt(i--); |
| if (c3 == ' ') |
| c3 = value.charAt(i--); |
| char c2 = value.charAt(i--); |
| if (c2 == ' ') |
| c2 = value.charAt(i--); |
| char c1 = value.charAt(i--); |
| if (c1 == ' ') |
| c1 = value.charAt(i--); |
| |
| if (c4 == '=') |
| { |
| if (c3 == '=') |
| { |
| if (B04.indexOf(c2) != -1 && |
| B64.indexOf(c1) != -1) |
| continue; |
| } |
| else if (B16.indexOf(c3) != -1) |
| { |
| if (B64.indexOf(c2) != -1 && |
| B64.indexOf(c1) != -1) |
| continue; |
| } |
| } |
| else if (B64.indexOf(c4) != -1) |
| continue; |
| throw new DatatypeException(i, "illegal BASE64"); |
| } |
| } |
| catch (IndexOutOfBoundsException e) |
| { |
| throw new DatatypeException("illegal BASE64"); |
| } |
| } |
| |
| } |
| |