001: /*
002: * The Apache Software License, Version 1.1
003: *
004: *
005: * Copyright (c) 1999, 2000 The Apache Software Foundation. All rights
006: * reserved.
007: *
008: * Redistribution and use in source and binary forms, with or without
009: * modification, are permitted provided that the following conditions
010: * are met:
011: *
012: * 1. Redistributions of source code must retain the above copyright
013: * notice, this list of conditions and the following disclaimer.
014: *
015: * 2. Redistributions in binary form must reproduce the above copyright
016: * notice, this list of conditions and the following disclaimer in
017: * the documentation and/or other materials provided with the
018: * distribution.
019: *
020: * 3. The end-user documentation included with the redistribution,
021: * if any, must include the following acknowledgment:
022: * "This product includes software developed by the
023: * Apache Software Foundation (http://www.apache.org/)."
024: * Alternately, this acknowledgment may appear in the software itself,
025: * if and wherever such third-party acknowledgments normally appear.
026: *
027: * 4. The names "Xerces" and "Apache Software Foundation" must
028: * not be used to endorse or promote products derived from this
029: * software without prior written permission. For written
030: * permission, please contact apache@apache.org.
031: *
032: * 5. Products derived from this software may not be called "Apache",
033: * nor may "Apache" appear in their name, without prior written
034: * permission of the Apache Software Foundation.
035: *
036: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
037: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
038: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
039: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
040: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
044: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047: * SUCH DAMAGE.
048: * ====================================================================
049: *
050: * This software consists of voluntary contributions made by many
051: * individuals on behalf of the Apache Software Foundation and was
052: * originally based on software copyright (c) 1999, International
053: * Business Machines, Inc., http://www.apache.org. For more
054: * information on the Apache Software Foundation, please see
055: * <http://www.apache.org/>.
056: */
057:
058: package org.apache.xerces.validators.datatype;
059:
060: import java.io.UnsupportedEncodingException;
061: import java.util.Hashtable;
062: import java.util.Vector;
063: import java.util.Enumeration;
064: import org.apache.xerces.validators.schema.SchemaSymbols;
065: import org.apache.xerces.utils.regex.RegularExpression;
066: import org.apache.xerces.utils.Base64;
067:
068: /**
069: * Base64BinaryValidator validates that XML content is a W3C string type.
070: * @author Ted Leung
071: * @author Kito D. Mann, Virtua Communications Corp.
072: * @author Jeffrey Rodriguez
073: * @author Mark Swinkles - List Validation refactoring
074: * @version $Id: Base64BinaryDatatypeValidator.java,v 1.8 2001/07/31 14:40:59 neilg Exp $
075: */
076: public class Base64BinaryDatatypeValidator extends
077: AbstractStringValidator {
078:
079: public Base64BinaryDatatypeValidator()
080: throws InvalidDatatypeFacetException {
081: super (null, null, false); // Native, No Facets defined, Restriction
082:
083: }
084:
085: public Base64BinaryDatatypeValidator(DatatypeValidator base,
086: Hashtable facets, boolean derivedByList)
087: throws InvalidDatatypeFacetException {
088:
089: super (base, facets, derivedByList);
090: }
091:
092: protected void assignAdditionalFacets(String key, Hashtable facets)
093: throws InvalidDatatypeFacetException {
094: throw new InvalidDatatypeFacetException(getErrorString(
095: DatatypeMessageProvider.ILLEGAL_STRING_FACET,
096: DatatypeMessageProvider.MSG_NONE, new Object[] { key }));
097: }
098:
099: protected void checkValueSpace(String content)
100: throws InvalidDatatypeValueException {
101: if (getLength(content) < 0) {
102: throw new InvalidDatatypeValueException("Value '" + content
103: + "' is not encoded in Base64");
104: }
105: }
106:
107: protected int getLength(String content) {
108: int x = 0;
109: try {
110: x = Base64.getDecodedDataLength(content.getBytes("utf-8"));
111: } catch (UnsupportedEncodingException e) {
112: } finally {
113: return x;
114: }
115: }
116:
117: public int compare(String value1, String value2) {
118: if (value1 == null || value2 == null)
119: return -1;
120:
121: if (value1 == value2 || value1.equals(value2))
122: return 0;
123:
124: byte[] data1 = Base64.decode(value1.getBytes());
125: byte[] data2 = Base64.decode(value2.getBytes());
126:
127: if (data1 == null || data2 == null)
128: return -1;
129:
130: for (int i = 0; i < Math.min(data1.length, data2.length); i++)
131: if (data1[i] < data2[i])
132: return -1;
133: else if (data1[i] > data2[i])
134: return 1;
135:
136: if (data1.length == data2.length)
137: return 0;
138:
139: return data1.length > data2.length ? 1 : -1;
140: }
141: }
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