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1
8
9 package com.sleepycat.persist.impl;
10
11 import java.math.BigInteger  ;
12
13
42 class WidenerInput extends AbstractInput {
43
44 private EntityInput input;
45 private int fromFormatId;
46 private int toFormatId;
47
48
53 static boolean isWideningSupported(Format fromFormat,
54 Format toFormat,
55 boolean isSecKeyField) {
56 int fromFormatId = fromFormat.getId();
57 int toFormatId = toFormat.getId();
58
59 switch (fromFormatId) {
60 case Format.ID_BOOL:
61 switch (toFormatId) {
62 case Format.ID_BOOL_W:
63 return true;
64 default:
65 return false;
66 }
67 case Format.ID_BYTE:
68 switch (toFormatId) {
69 case Format.ID_BYTE_W:
70 return true;
71 case Format.ID_SHORT:
72 case Format.ID_SHORT_W:
73 case Format.ID_INT:
74 case Format.ID_INT_W:
75 case Format.ID_LONG:
76 case Format.ID_LONG_W:
77 case Format.ID_FLOAT:
78 case Format.ID_FLOAT_W:
79 case Format.ID_DOUBLE:
80 case Format.ID_DOUBLE_W:
81 case Format.ID_BIGINT:
82 return !isSecKeyField;
83 default:
84 return false;
85 }
86 case Format.ID_BYTE_W:
87 switch (toFormatId) {
88 case Format.ID_SHORT_W:
89 case Format.ID_INT_W:
90 case Format.ID_LONG_W:
91 case Format.ID_FLOAT_W:
92 case Format.ID_DOUBLE_W:
93 case Format.ID_BIGINT:
94 return !isSecKeyField;
95 default:
96 return false;
97 }
98 case Format.ID_SHORT:
99 switch (toFormatId) {
100 case Format.ID_SHORT_W:
101 return true;
102 case Format.ID_INT:
103 case Format.ID_INT_W:
104 case Format.ID_LONG:
105 case Format.ID_LONG_W:
106 case Format.ID_FLOAT:
107 case Format.ID_FLOAT_W:
108 case Format.ID_DOUBLE:
109 case Format.ID_DOUBLE_W:
110 case Format.ID_BIGINT:
111 return !isSecKeyField;
112 default:
113 return false;
114 }
115 case Format.ID_SHORT_W:
116 switch (toFormatId) {
117 case Format.ID_INT_W:
118 case Format.ID_LONG_W:
119 case Format.ID_FLOAT_W:
120 case Format.ID_DOUBLE_W:
121 case Format.ID_BIGINT:
122 return !isSecKeyField;
123 default:
124 return false;
125 }
126 case Format.ID_INT:
127 switch (toFormatId) {
128 case Format.ID_INT_W:
129 return true;
130 case Format.ID_LONG:
131 case Format.ID_LONG_W:
132 case Format.ID_FLOAT:
133 case Format.ID_FLOAT_W:
134 case Format.ID_DOUBLE:
135 case Format.ID_DOUBLE_W:
136 case Format.ID_BIGINT:
137 return !isSecKeyField;
138 default:
139 return false;
140 }
141 case Format.ID_INT_W:
142 switch (toFormatId) {
143 case Format.ID_LONG_W:
144 case Format.ID_FLOAT_W:
145 case Format.ID_DOUBLE_W:
146 case Format.ID_BIGINT:
147 return !isSecKeyField;
148 default:
149 return false;
150 }
151 case Format.ID_LONG:
152 switch (toFormatId) {
153 case Format.ID_LONG_W:
154 return true;
155 case Format.ID_FLOAT:
156 case Format.ID_FLOAT_W:
157 case Format.ID_DOUBLE:
158 case Format.ID_DOUBLE_W:
159 case Format.ID_BIGINT:
160 return !isSecKeyField;
161 default:
162 return false;
163 }
164 case Format.ID_LONG_W:
165 switch (toFormatId) {
166 case Format.ID_FLOAT_W:
167 case Format.ID_DOUBLE_W:
168 case Format.ID_BIGINT:
169 return !isSecKeyField;
170 default:
171 return false;
172 }
173 case Format.ID_FLOAT:
174 switch (toFormatId) {
175 case Format.ID_FLOAT_W:
176 return true;
177 case Format.ID_DOUBLE:
178 case Format.ID_DOUBLE_W:
179 return !isSecKeyField;
180 default:
181 return false;
182 }
183 case Format.ID_FLOAT_W:
184 switch (toFormatId) {
185 case Format.ID_DOUBLE_W:
186 return !isSecKeyField;
187 default:
188 return false;
189 }
190 case Format.ID_DOUBLE:
191 switch (toFormatId) {
192 case Format.ID_DOUBLE_W:
193 return true;
194 default:
195 return false;
196 }
197 case Format.ID_CHAR:
198 switch (toFormatId) {
199 case Format.ID_CHAR_W:
200 return true;
201 case Format.ID_INT:
202 case Format.ID_INT_W:
203 case Format.ID_LONG:
204 case Format.ID_LONG_W:
205 case Format.ID_FLOAT:
206 case Format.ID_FLOAT_W:
207 case Format.ID_DOUBLE:
208 case Format.ID_DOUBLE_W:
209 case Format.ID_BIGINT:
210 return !isSecKeyField;
211 default:
212 return false;
213 }
214 case Format.ID_CHAR_W:
215 switch (toFormatId) {
216 case Format.ID_INT_W:
217 case Format.ID_LONG_W:
218 case Format.ID_FLOAT_W:
219 case Format.ID_DOUBLE_W:
220 case Format.ID_BIGINT:
221 return !isSecKeyField;
222 default:
223 return false;
224 }
225 default:
226 return false;
227 }
228 }
229
230 WidenerInput(EntityInput input, int fromFormatId, int toFormatId) {
231 super(input.getCatalog(), input.isRawAccess());
232 this.input = input;
233 this.fromFormatId = fromFormatId;
234 this.toFormatId = toFormatId;
235 }
236
237 public void registerPriKeyObject(Object o) {
238 input.registerPriKeyObject(o);
239 }
240
241 public int readArrayLength() {
242 throw new UnsupportedOperationException ();
243 }
244
245 public int readEnumConstant(String [] names) {
246 throw new UnsupportedOperationException ();
247 }
248
249 public void skipField(Format declaredFormat) {
250 throw new UnsupportedOperationException ();
251 }
252
253 public String readString() {
254 throw new UnsupportedOperationException ();
255 }
256
257 public Object readKeyObject(Format fromFormat) {
258 return readObject();
259 }
260
261 public Object readObject() {
262 switch (fromFormatId) {
263 case Format.ID_BOOL:
264 checkToFormat(Format.ID_BOOL_W);
265 return input.readBoolean();
266 case Format.ID_BYTE:
267 return byteToObject(input.readByte());
268 case Format.ID_BYTE_W:
269 Byte b = (Byte ) input.readObject();
270 return (b != null) ? byteToObject(b) : null;
271 case Format.ID_SHORT:
272 return shortToObject(input.readShort());
273 case Format.ID_SHORT_W:
274 Short s = (Short ) input.readObject();
275 return (s != null) ? shortToObject(s) : null;
276 case Format.ID_INT:
277 return intToObject(input.readInt());
278 case Format.ID_INT_W:
279 Integer i = (Integer ) input.readObject();
280 return (i != null) ? intToObject(i) : null;
281 case Format.ID_LONG:
282 return longToObject(input.readLong());
283 case Format.ID_LONG_W:
284 Long l = (Long ) input.readObject();
285 return (l != null) ? longToObject(l) : null;
286 case Format.ID_FLOAT:
287 return floatToObject(input.readSortedFloat());
288 case Format.ID_FLOAT_W:
289 Float f = (Float ) input.readObject();
290 return (f != null) ? floatToObject(f) : null;
291 case Format.ID_DOUBLE:
292 checkToFormat(Format.ID_DOUBLE_W);
293 return input.readSortedDouble();
294 case Format.ID_CHAR:
295 return charToObject(input.readChar());
296 case Format.ID_CHAR_W:
297 Character c = (Character ) input.readObject();
298 return (c != null) ? charToObject(c) : null;
299 default:
300 throw new IllegalStateException (String.valueOf(fromFormatId));
301 }
302 }
303
304 private Object byteToObject(byte v) {
305 switch (toFormatId) {
306 case Format.ID_BYTE:
307 case Format.ID_BYTE_W:
308 return Byte.valueOf(v);
309 case Format.ID_SHORT:
310 case Format.ID_SHORT_W:
311 return Short.valueOf(v);
312 case Format.ID_INT:
313 case Format.ID_INT_W:
314 return Integer.valueOf(v);
315 case Format.ID_LONG:
316 case Format.ID_LONG_W:
317 return Long.valueOf(v);
318 case Format.ID_FLOAT:
319 case Format.ID_FLOAT_W:
320 return Float.valueOf(v);
321 case Format.ID_DOUBLE:
322 case Format.ID_DOUBLE_W:
323 return Double.valueOf(v);
324 case Format.ID_BIGINT:
325 return BigInteger.valueOf(v);
326 default:
327 throw new IllegalStateException (String.valueOf(toFormatId));
328 }
329 }
330
331 private Object shortToObject(short v) {
332 switch (toFormatId) {
333 case Format.ID_SHORT:
334 case Format.ID_SHORT_W:
335 return Short.valueOf(v);
336 case Format.ID_INT:
337 case Format.ID_INT_W:
338 return Integer.valueOf(v);
339 case Format.ID_LONG:
340 case Format.ID_LONG_W:
341 return Long.valueOf(v);
342 case Format.ID_FLOAT:
343 case Format.ID_FLOAT_W:
344 return Float.valueOf(v);
345 case Format.ID_DOUBLE:
346 case Format.ID_DOUBLE_W:
347 return Double.valueOf(v);
348 case Format.ID_BIGINT:
349 return BigInteger.valueOf(v);
350 default:
351 throw new IllegalStateException (String.valueOf(toFormatId));
352 }
353 }
354
355 private Object intToObject(int v) {
356 switch (toFormatId) {
357 case Format.ID_INT:
358 case Format.ID_INT_W:
359 return Integer.valueOf(v);
360 case Format.ID_LONG:
361 case Format.ID_LONG_W:
362 return Long.valueOf(v);
363 case Format.ID_FLOAT:
364 case Format.ID_FLOAT_W:
365 return Float.valueOf(v);
366 case Format.ID_DOUBLE:
367 case Format.ID_DOUBLE_W:
368 return Double.valueOf(v);
369 case Format.ID_BIGINT:
370 return BigInteger.valueOf(v);
371 default:
372 throw new IllegalStateException (String.valueOf(toFormatId));
373 }
374 }
375
376 private Object longToObject(long v) {
377 switch (toFormatId) {
378 case Format.ID_LONG:
379 case Format.ID_LONG_W:
380 return Long.valueOf(v);
381 case Format.ID_FLOAT:
382 case Format.ID_FLOAT_W:
383 return Float.valueOf(v);
384 case Format.ID_DOUBLE:
385 case Format.ID_DOUBLE_W:
386 return Double.valueOf(v);
387 case Format.ID_BIGINT:
388 return BigInteger.valueOf(v);
389 default:
390 throw new IllegalStateException (String.valueOf(toFormatId));
391 }
392 }
393
394 private Object floatToObject(float v) {
395 switch (toFormatId) {
396 case Format.ID_FLOAT:
397 case Format.ID_FLOAT_W:
398 return Float.valueOf(v);
399 case Format.ID_DOUBLE:
400 case Format.ID_DOUBLE_W:
401 return Double.valueOf(v);
402 default:
403 throw new IllegalStateException (String.valueOf(toFormatId));
404 }
405 }
406
407 private Object charToObject(char v) {
408 switch (toFormatId) {
409 case Format.ID_CHAR:
410 case Format.ID_CHAR_W:
411 return Character.valueOf(v);
412 case Format.ID_INT:
413 case Format.ID_INT_W:
414 return Integer.valueOf(v);
415 case Format.ID_LONG:
416 case Format.ID_LONG_W:
417 return Long.valueOf(v);
418 case Format.ID_FLOAT:
419 case Format.ID_FLOAT_W:
420 return Float.valueOf(v);
421 case Format.ID_DOUBLE:
422 case Format.ID_DOUBLE_W:
423 return Double.valueOf(v);
424 case Format.ID_BIGINT:
425 return BigInteger.valueOf(v);
426 default:
427 throw new IllegalStateException (String.valueOf(toFormatId));
428 }
429 }
430
431 public char readChar() {
432 throw new IllegalStateException (String.valueOf(fromFormatId));
433 }
434
435 public boolean readBoolean() {
436 throw new IllegalStateException (String.valueOf(fromFormatId));
437 }
438
439 public byte readByte() {
440 throw new IllegalStateException (String.valueOf(fromFormatId));
441 }
442
443 public short readShort() {
444 checkToFormat(Format.ID_SHORT);
445 switch (fromFormatId) {
446 case Format.ID_BYTE:
447 return input.readByte();
448 default:
449 throw new IllegalStateException (String.valueOf(fromFormatId));
450 }
451 }
452
453 public int readInt() {
454 checkToFormat(Format.ID_INT);
455 switch (fromFormatId) {
456 case Format.ID_BYTE:
457 return input.readByte();
458 case Format.ID_SHORT:
459 return input.readShort();
460 case Format.ID_CHAR:
461 return input.readChar();
462 default:
463 throw new IllegalStateException (String.valueOf(fromFormatId));
464 }
465 }
466
467 public long readLong() {
468 checkToFormat(Format.ID_LONG);
469 switch (fromFormatId) {
470 case Format.ID_BYTE:
471 return input.readByte();
472 case Format.ID_SHORT:
473 return input.readShort();
474 case Format.ID_INT:
475 return input.readInt();
476 case Format.ID_CHAR:
477 return input.readChar();
478 default:
479 throw new IllegalStateException (String.valueOf(fromFormatId));
480 }
481 }
482
483 public float readSortedFloat() {
484 checkToFormat(Format.ID_FLOAT);
485 switch (fromFormatId) {
486 case Format.ID_BYTE:
487 return input.readByte();
488 case Format.ID_SHORT:
489 return input.readShort();
490 case Format.ID_INT:
491 return input.readInt();
492 case Format.ID_LONG:
493 return input.readLong();
494 case Format.ID_CHAR:
495 return input.readChar();
496 default:
497 throw new IllegalStateException (String.valueOf(fromFormatId));
498 }
499 }
500
501 public double readSortedDouble() {
502 checkToFormat(Format.ID_DOUBLE);
503 switch (fromFormatId) {
504 case Format.ID_BYTE:
505 return input.readByte();
506 case Format.ID_SHORT:
507 return input.readShort();
508 case Format.ID_INT:
509 return input.readInt();
510 case Format.ID_LONG:
511 return input.readLong();
512 case Format.ID_FLOAT:
513 return input.readSortedFloat();
514 case Format.ID_CHAR:
515 return input.readChar();
516 default:
517 throw new IllegalStateException (String.valueOf(fromFormatId));
518 }
519 }
520
521 public BigInteger readBigInteger() {
522 checkToFormat(Format.ID_BIGINT);
523 switch (fromFormatId) {
524 case Format.ID_BYTE:
525 return BigInteger.valueOf(input.readByte());
526 case Format.ID_SHORT:
527 return BigInteger.valueOf(input.readShort());
528 case Format.ID_INT:
529 return BigInteger.valueOf(input.readInt());
530 case Format.ID_LONG:
531 return BigInteger.valueOf(input.readLong());
532 case Format.ID_CHAR:
533 return BigInteger.valueOf(input.readChar());
534 default:
535 throw new IllegalStateException (String.valueOf(fromFormatId));
536 }
537 }
538
539 private void checkToFormat(int id) {
540 if (toFormatId != id) {
541 throw new IllegalStateException (String.valueOf(toFormatId));
542 }
543 }
544 }
545 |
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