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1
57
58 package com.sun.org.apache.xerces.internal.impl.dv.xs;
59
60 import com.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeValueException;
61 import com.sun.org.apache.xerces.internal.impl.dv.ValidationContext;
62
63
71 public class FloatDV extends TypeValidator {
72
73 public short getAllowedFacets(){
74 return ( XSSimpleTypeDecl.FACET_PATTERN | XSSimpleTypeDecl.FACET_WHITESPACE | XSSimpleTypeDecl.FACET_ENUMERATION |XSSimpleTypeDecl.FACET_MAXINCLUSIVE |XSSimpleTypeDecl.FACET_MININCLUSIVE | XSSimpleTypeDecl.FACET_MAXEXCLUSIVE | XSSimpleTypeDecl.FACET_MINEXCLUSIVE );
75 }
77 public Object  getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException {
79 try{
80 return new XFloat(content);
81 } catch (NumberFormatException ex){
82 throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object []{content, "float"});
83 }
84 }
86 public int compare(Object value1, Object value2){
88 return ((XFloat)value1).compareTo((XFloat)value2);
89 }
91 private static final class XFloat {
92 private float value;
93 public XFloat(String s) throws NumberFormatException {
94 try {
95 value = Float.parseFloat(s);
96 }
97 catch ( NumberFormatException nfe ) {
98 if ( s.equals("INF") ) {
99 value = Float.POSITIVE_INFINITY;
100 }
101 else if ( s.equals("-INF") ) {
102 value = Float.NEGATIVE_INFINITY;
103 }
104 else if ( s.equals("NaN" ) ) {
105 value = Float.NaN;
106 }
107 else {
108 throw nfe;
109 }
110 }
111 }
112
113 public boolean equals(Object val) {
114 if (val == this)
115 return true;
116
117 if (!(val instanceof XFloat))
118 return false;
119 XFloat oval = (XFloat)val;
120
121 if (value == oval.value)
123 return true;
124
125 if (value != value && oval.value != oval.value)
126 return true;
127
128 return false;
129 }
130
131 private int compareTo(XFloat val) {
132 float oval = val.value;
133
134 if (value < oval)
136 return -1;
137 if (value > oval)
139 return 1;
140 if (value == oval)
143 return 0;
144
145
147 if (value != value) {
148 if (oval != oval)
150 return 0;
151 return INDETERMINATE;
153 }
154
155 return INDETERMINATE;
157 }
158
159 private String canonical;
160 public synchronized String toString() {
161 if (canonical == null) {
162 if (value == Float.POSITIVE_INFINITY)
163 canonical = "INF";
164 else if (value == Float.NEGATIVE_INFINITY)
165 canonical = "-INF";
166 else if (value != value)
167 canonical = "NaN";
168 else if (value == 0)
170 canonical = "0.0E1";
171 else {
172 canonical = Float.toString(value);
176 if (canonical.indexOf('E') == -1) {
179 int len = canonical.length();
180 char[] chars = new char[len+3];
182 canonical.getChars(0, len, chars, 0);
183 int edp = chars[0] == '-' ? 2 : 1;
185 if (value >= 1 || value <= -1) {
187 int dp = canonical.indexOf('.');
189 for (int i = dp; i > edp; i--) {
191 chars[i] = chars[i-1];
192 }
193 chars[edp] = '.';
194 while (chars[len-1] == '0')
196 len--;
197 if (chars[len-1] == '.')
199 len++;
200 chars[len++] = 'E';
202 int shift = dp - edp;
204 chars[len++] = (char)(shift + '0');
207 }
208 else {
209 int nzp = edp + 1;
211 while (chars[nzp] == '0')
213 nzp++;
214 chars[edp-1] = chars[nzp];
216 chars[edp] = '.';
217 for (int i = nzp+1, j = edp+1; i < len; i++, j++)
219 chars[j] = chars[i];
220 len -= nzp - edp;
222 if (len == edp + 1)
224 chars[len++] = '0';
225 chars[len++] = 'E';
227 chars[len++] = '-';
228 int shift = nzp - edp;
230 chars[len++] = (char)(shift + '0');
233 }
234 canonical = new String (chars, 0, len);
235 }
236 }
237 }
238 return canonical;
239 }
240 }
241 } |
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