|
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 DecimalDV extends TypeValidator {
72
73 public final 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 | XSSimpleTypeDecl.FACET_TOTALDIGITS | XSSimpleTypeDecl.FACET_FRACTIONDIGITS);
75 }
76
77 public Object  getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException {
78 try {
79 return new XDecimal(content);
80 } catch (NumberFormatException nfe) {
81 throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object []{content, "decimal"});
82 }
83 }
84
85 public final int compare(Object value1, Object value2){
86 return ((XDecimal)value1).compareTo((XDecimal)value2);
87 }
88
89 public final int getTotalDigits(Object value){
90 return ((XDecimal)value).totalDigits;
91 }
92
93 public final int getFractionDigits(Object value){
94 return ((XDecimal)value).fracDigits;
95 }
96
97 static class XDecimal {
99 int sign = 1;
101 int totalDigits = 0;
103 int intDigits = 0;
105 int fracDigits = 0;
107 String ivalue = "";
109 String fvalue = "";
111 boolean integer = false;
113
114 XDecimal(String content) throws NumberFormatException {
115 initD(content);
116 }
117 XDecimal(String content, boolean integer) throws NumberFormatException {
118 if (integer)
119 initI(content);
120 else
121 initD(content);
122 }
123 void initD(String content) throws NumberFormatException {
124 int len = content.length();
125 if (len == 0)
126 throw new NumberFormatException ();
127
128 int intStart = 0, intEnd = 0, fracStart = 0, fracEnd = 0;
131
132 if (content.charAt(0) == '+') {
134 intStart = 1;
136 }
137 else if (content.charAt(0) == '-') {
138 intStart = 1;
140 sign = -1;
141 }
142
143 int actualIntStart = intStart;
145 while (actualIntStart < len && content.charAt(actualIntStart) == '0') {
146 actualIntStart++;
147 }
148
149 for (intEnd = actualIntStart;
151 intEnd < len && TypeValidator.isDigit(content.charAt(intEnd));
152 intEnd++);
153
154 if (intEnd < len) {
156 if (content.charAt(intEnd) != '.')
158 throw new NumberFormatException ();
159
160 fracStart = intEnd + 1;
162 fracEnd = len;
163 }
164
165 if (intStart == intEnd && fracStart == fracEnd)
167 throw new NumberFormatException ();
168
169 while (fracEnd > fracStart && content.charAt(fracEnd-1) == '0') {
171 fracEnd--;
172 }
173
174 for (int fracPos = fracStart; fracPos < fracEnd; fracPos++) {
176 if (!TypeValidator.isDigit(content.charAt(fracPos)))
177 throw new NumberFormatException ();
178 }
179
180 intDigits = intEnd - actualIntStart;
181 fracDigits = fracEnd - fracStart;
182 totalDigits = intDigits + fracDigits;
183
184 if (intDigits > 0) {
185 ivalue = content.substring(actualIntStart, intEnd);
186 if (fracDigits > 0)
187 fvalue = content.substring(fracStart, fracEnd);
188 }
189 else {
190 if (fracDigits > 0) {
191 fvalue = content.substring(fracStart, fracEnd);
192 }
193 else {
194 sign = 0;
196 }
197 }
198 }
199 void initI(String content) throws NumberFormatException {
200 int len = content.length();
201 if (len == 0)
202 throw new NumberFormatException ();
203
204 int intStart = 0, intEnd = 0;
206
207 if (content.charAt(0) == '+') {
209 intStart = 1;
211 }
212 else if (content.charAt(0) == '-') {
213 intStart = 1;
215 sign = -1;
216 }
217
218 int actualIntStart = intStart;
220 while (actualIntStart < len && content.charAt(actualIntStart) == '0') {
221 actualIntStart++;
222 }
223
224 for (intEnd = actualIntStart;
226 intEnd < len && TypeValidator.isDigit(content.charAt(intEnd));
227 intEnd++);
228
229 if (intEnd < len)
231 throw new NumberFormatException ();
232
233 if (intStart == intEnd)
235 throw new NumberFormatException ();
236
237 intDigits = intEnd - actualIntStart;
238 fracDigits = 0;
239 totalDigits = intDigits;
240
241 if (intDigits > 0) {
242 ivalue = content.substring(actualIntStart, intEnd);
243 }
244 else {
245 sign = 0;
247 }
248
249 integer = true;
250 }
251 public boolean equals(Object val) {
252 if (val == this)
253 return true;
254
255 if (!(val instanceof XDecimal))
256 return false;
257 XDecimal oval = (XDecimal)val;
258
259 if (sign != oval.sign)
260 return false;
261 if (sign == 0)
262 return true;
263
264 return intDigits == oval.intDigits && fracDigits == oval.fracDigits &&
265 ivalue.equals(oval.ivalue) && fvalue.equals(oval.fvalue);
266 }
267 public int compareTo(XDecimal val) {
268 if (sign != val.sign)
269 return sign > val.sign ? 1 : -1;
270 if (sign == 0)
271 return 0;
272 return sign * intComp(val);
273 }
274 private int intComp(XDecimal val) {
275 if (intDigits != val.intDigits)
276 return intDigits > val.intDigits ? 1 : -1;
277 int ret = ivalue.compareTo(val.ivalue);
278 if (ret != 0)
279 return ret > 0 ? 1 : -1;;
280 ret = fvalue.compareTo(val.fvalue);
281 return ret == 0 ? 0 : (ret > 0 ? 1 : -1);
282 }
283 private String canonical;
284 public synchronized String toString() {
285 if (canonical == null) {
286 makeCanonical();
287 }
288 return canonical;
289 }
290
291 private void makeCanonical() {
292 if (sign == 0) {
293 if (integer)
294 canonical = "0";
295 else
296 canonical = "0.0";
297 return;
298 }
299 if (integer && sign > 0) {
300 canonical = ivalue;
301 return;
302 }
303 StringBuffer buffer = new StringBuffer (totalDigits+3);
305 if (sign == -1)
306 buffer.append('-');
307 if (intDigits != 0)
308 buffer.append(ivalue);
309 else
310 buffer.append('0');
311 if (!integer) {
312 buffer.append('.');
313 if (fracDigits != 0) {
314 buffer.append(fvalue);
315 }
316 else {
317 buffer.append('0');
318 }
319 }
320 canonical = buffer.toString();
321 }
322 }
323 }
325 |
Popular Tags |
Java API By Example, From Geeks To Geeks.