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Diffstat (limited to 'gnu/xml/validation/datatype/Base64BinaryType.java')
-rw-r--r-- | gnu/xml/validation/datatype/Base64BinaryType.java | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/gnu/xml/validation/datatype/Base64BinaryType.java b/gnu/xml/validation/datatype/Base64BinaryType.java new file mode 100644 index 000000000..5a72a280d --- /dev/null +++ b/gnu/xml/validation/datatype/Base64BinaryType.java @@ -0,0 +1,131 @@ +/* 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"); + } + } + +} + |