1 /* IntType.java -- 2 Copyright (C) 2006 Free Software Foundation, Inc. 3 4 This file is part of GNU Classpath. 5 6 GNU Classpath is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GNU Classpath is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GNU Classpath; see the file COPYING. If not, write to the 18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19 02110-1301 USA. 20 21 Linking this library statically or dynamically with other modules is 22 making a combined work based on this library. Thus, the terms and 23 conditions of the GNU General Public License cover the whole 24 combination. 25 26 As a special exception, the copyright holders of this library give you 27 permission to link this library with independent modules to produce an 28 executable, regardless of the license terms of these independent 29 modules, and to copy and distribute the resulting executable under 30 terms of your choice, provided that you also meet, for each linked 31 independent module, the terms and conditions of the license of that 32 module. An independent module is a module which is not derived from 33 or based on this library. If you modify this library, you may extend 34 this exception to your version of the library, but you are not 35 obligated to do so. If you do not wish to do so, delete this 36 exception statement from your version. */ 37 38 package gnu.xml.validation.datatype; 39 40 import javax.xml.XMLConstants; 41 import javax.xml.namespace.QName; 42 import org.relaxng.datatype.DatatypeException; 43 import org.relaxng.datatype.ValidationContext; 44 45 /** 46 * The XML Schema int type. 47 * 48 * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> 49 */ 50 final class IntType 51 extends AtomicSimpleType 52 { 53 54 static final int[] CONSTRAINING_FACETS = { 55 Facet.TOTAL_DIGITS, 56 Facet.FRACTION_DIGITS, 57 Facet.PATTERN, 58 Facet.WHITESPACE, 59 Facet.ENUMERATION, 60 Facet.MAX_INCLUSIVE, 61 Facet.MAX_EXCLUSIVE, 62 Facet.MIN_INCLUSIVE, 63 Facet.MIN_EXCLUSIVE 64 }; 65 66 static final String MAX_VALUE = "2147483647"; 67 static final String MIN_VALUE = "2147483648"; 68 static final int LENGTH = MAX_VALUE.length(); 69 IntType()70 IntType() 71 { 72 super(new QName(XMLConstants.W3C_XML_SCHEMA_NS_URI, "int"), 73 TypeLibrary.LONG); 74 } 75 getConstrainingFacets()76 public int[] getConstrainingFacets() 77 { 78 return CONSTRAINING_FACETS; 79 } 80 checkValid(String value, ValidationContext context)81 public void checkValid(String value, ValidationContext context) 82 throws DatatypeException 83 { 84 super.checkValid(value, context); 85 int len = value.length(); 86 if (len == 0) 87 throw new DatatypeException(0, "invalid int value"); 88 int i = 0, off = 0; 89 boolean compare = false; 90 String compareTo = MAX_VALUE; 91 char c = value.charAt(0); 92 if (c == '+') 93 i++; 94 else if (c == '-') 95 { 96 compareTo = MIN_VALUE; 97 i++; 98 } 99 if (len - i > LENGTH) 100 throw new DatatypeException("invalid int value"); 101 else if (len - i == LENGTH) 102 compare = true; 103 for (; i < len; i++) 104 { 105 c = value.charAt(i); 106 if (c >= 0x30 && c <= 0x39) 107 { 108 if (compare) 109 { 110 char d = compareTo.charAt(off); 111 if (Character.digit(c, 10) > Character.digit(d, 10)) 112 throw new DatatypeException(i, "invalid int value"); 113 } 114 off++; 115 continue; 116 } 117 throw new DatatypeException(i, "invalid int value"); 118 } 119 } 120 createValue(String literal, ValidationContext context)121 public Object createValue(String literal, ValidationContext context) { 122 try 123 { 124 return new Integer(literal); 125 } 126 catch (NumberFormatException e) 127 { 128 return null; 129 } 130 } 131 132 } 133