Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 1 | package com.fasterxml.jackson.core.json.async; |
| 2 | |
| 3 | import java.io.*; |
| 4 | import java.util.Arrays; |
| 5 | |
| 6 | import com.fasterxml.jackson.core.*; |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 7 | import com.fasterxml.jackson.core.base.ParserBase; |
| 8 | import com.fasterxml.jackson.core.io.IOContext; |
Tatu Saloranta | 8e8ed3e | 2017-05-19 17:07:48 -0700 | [diff] [blame] | 9 | import com.fasterxml.jackson.core.json.JsonReadContext; |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 10 | import com.fasterxml.jackson.core.sym.ByteQuadsCanonicalizer; |
| 11 | |
| 12 | /** |
| 13 | * Intermediate base class for non-blocking JSON parsers. |
| 14 | */ |
Tatu Saloranta | 81fb43c | 2017-05-17 18:25:34 -0700 | [diff] [blame] | 15 | public abstract class NonBlockingJsonParserBase |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 16 | extends ParserBase |
| 17 | { |
| 18 | /* |
| 19 | /********************************************************************** |
| 20 | /* Major state constants |
| 21 | /********************************************************************** |
| 22 | */ |
| 23 | |
| 24 | /** |
| 25 | * State right after parser has been constructed, before seeing the first byte |
| 26 | * to know if there's header. |
| 27 | */ |
| 28 | protected final static int MAJOR_INITIAL = 0; |
| 29 | |
| 30 | /** |
| 31 | * State right after parser a root value has been |
| 32 | * finished, but next token has not yet been recognized. |
| 33 | */ |
| 34 | protected final static int MAJOR_ROOT = 1; |
| 35 | |
| 36 | protected final static int MAJOR_OBJECT_FIELD = 2; |
| 37 | protected final static int MAJOR_OBJECT_VALUE = 3; |
| 38 | |
| 39 | protected final static int MAJOR_ARRAY_ELEMENT = 4; |
| 40 | |
| 41 | /** |
| 42 | * State after non-blocking input source has indicated that no more input |
| 43 | * is forthcoming AND we have exhausted all the input |
| 44 | */ |
| 45 | protected final static int MAJOR_CLOSED = 5; |
Tatu Saloranta | 8e8ed3e | 2017-05-19 17:07:48 -0700 | [diff] [blame] | 46 | |
| 47 | /* |
| 48 | /********************************************************************** |
| 49 | /* Minor state constants |
| 50 | /********************************************************************** |
| 51 | */ |
| 52 | |
| 53 | /** |
| 54 | * State between root-level value, waiting for at least one white-space |
| 55 | * character as separator |
| 56 | */ |
| 57 | protected final static int MINOR_FIELD_ROOT_NEED_SEPARATOR = 1; |
| 58 | |
| 59 | /** |
| 60 | * State between root-level value, having processed at least one white-space |
| 61 | * character, and expecting either more, start of a value, or end of input |
| 62 | * stream. |
| 63 | */ |
| 64 | protected final static int MINOR_FIELD_ROOT_GOT_SEPARATOR = 2; |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 65 | |
Tatu Saloranta | 8e8ed3e | 2017-05-19 17:07:48 -0700 | [diff] [blame] | 66 | protected final static int MINOR_FIELD_NAME = 10; |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 67 | |
Tatu Saloranta | 8e8ed3e | 2017-05-19 17:07:48 -0700 | [diff] [blame] | 68 | protected final static int MINOR_VALUE_NUMBER = 11; |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 69 | |
| 70 | protected final static int MINOR_VALUE_STRING = 15; |
| 71 | |
Tatu Saloranta | 955e5c2 | 2017-05-23 17:02:30 -0700 | [diff] [blame^] | 72 | protected final static int MINOR_VALUE_TOKEN_NULL = 16; |
| 73 | protected final static int MINOR_VALUE_TOKEN_TRUE = 17; |
| 74 | protected final static int MINOR_VALUE_TOKEN_FALSE = 18; |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 75 | |
Tatu Saloranta | 955e5c2 | 2017-05-23 17:02:30 -0700 | [diff] [blame^] | 76 | /** |
| 77 | * Special state at which point decoding of a non-quoted token has encountered |
| 78 | * a problem; that is, either not matching fully (like "truf" instead of "true", |
| 79 | * at "tru"), or not having trailing separator (or end of input), like "trueful". |
| 80 | * Attempt is made, then, to decode likely full input token to report suitable |
| 81 | * error. |
| 82 | */ |
| 83 | protected final static int MINOR_VALUE_TOKEN_ERROR = 19; |
| 84 | |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 85 | /* |
| 86 | /********************************************************************** |
| 87 | /* Helper objects, symbols (field names) |
| 88 | /********************************************************************** |
| 89 | */ |
| 90 | |
| 91 | /** |
| 92 | * Symbol table that contains field names encountered so far |
| 93 | */ |
| 94 | final protected ByteQuadsCanonicalizer _symbols; |
| 95 | |
| 96 | /** |
| 97 | * Temporary buffer used for name parsing. |
| 98 | */ |
| 99 | protected int[] _quadBuffer = NO_INTS; |
| 100 | |
| 101 | /** |
| 102 | * Quads used for hash calculation |
| 103 | */ |
| 104 | protected int _quad1, _quad2; |
| 105 | |
| 106 | /* |
| 107 | /********************************************************************** |
| 108 | /* Additional parsing state |
| 109 | /********************************************************************** |
| 110 | */ |
| 111 | |
| 112 | /** |
| 113 | * Current main decoding state |
| 114 | */ |
| 115 | protected int _majorState; |
| 116 | |
| 117 | /** |
| 118 | * Addition indicator within state; contextually relevant for just that state |
| 119 | */ |
| 120 | protected int _minorState; |
| 121 | |
| 122 | /** |
| 123 | * Value of {@link #_majorState} after completing a scalar value |
| 124 | */ |
| 125 | protected int _majorStateAfterValue; |
| 126 | |
| 127 | /** |
| 128 | * Flag that is sent when calling application indicates that there will |
| 129 | * be no more input to parse. |
| 130 | */ |
| 131 | protected boolean _endOfInput = false; |
| 132 | |
| 133 | /* |
| 134 | /********************************************************************** |
| 135 | /* Other buffering |
| 136 | /********************************************************************** |
| 137 | */ |
| 138 | |
| 139 | /** |
| 140 | * Temporary buffer for holding content if input not contiguous (but can |
| 141 | * fit in buffer) |
| 142 | */ |
| 143 | protected byte[] _inputCopy; |
| 144 | |
| 145 | /** |
| 146 | * Number of bytes buffered in <code>_inputCopy</code> |
| 147 | */ |
| 148 | protected int _inputCopyLen; |
| 149 | |
| 150 | /** |
| 151 | * Temporary storage for 32-bit values (int, float), as well as length markers |
| 152 | * for length-prefixed values. |
| 153 | */ |
| 154 | protected int _pending32; |
| 155 | |
| 156 | /** |
| 157 | * Temporary storage for 64-bit values (long, double), secondary storage |
| 158 | * for some other things (scale of BigDecimal values) |
| 159 | */ |
| 160 | protected long _pending64; |
| 161 | |
| 162 | /* |
| 163 | /********************************************************************** |
| 164 | /* Life-cycle |
| 165 | /********************************************************************** |
| 166 | */ |
| 167 | |
Tatu Saloranta | 81fb43c | 2017-05-17 18:25:34 -0700 | [diff] [blame] | 168 | public NonBlockingJsonParserBase(IOContext ctxt, int parserFeatures, |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 169 | ByteQuadsCanonicalizer sym) |
| 170 | { |
| 171 | super(ctxt, parserFeatures); |
| 172 | _symbols = sym; |
| 173 | // We don't need a lot; for most things maximum known a-priori length below 70 bytes |
| 174 | _inputCopy = ctxt.allocReadIOBuffer(500); |
| 175 | |
| 176 | _currToken = null; |
| 177 | _majorState = MAJOR_INITIAL; |
Tatu Saloranta | 8e8ed3e | 2017-05-19 17:07:48 -0700 | [diff] [blame] | 178 | _majorStateAfterValue = MAJOR_ROOT; |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 179 | } |
| 180 | |
| 181 | @Override |
| 182 | public ObjectCodec getCodec() { |
| 183 | return null; |
| 184 | } |
| 185 | |
| 186 | @Override |
| 187 | public void setCodec(ObjectCodec c) { |
| 188 | throw new UnsupportedOperationException("Can not use ObjectMapper with non-blocking parser"); |
| 189 | } |
| 190 | |
| 191 | /** |
| 192 | * @since 2.9 |
| 193 | */ |
| 194 | @Override |
| 195 | public boolean canParseAsync() { return true; } |
| 196 | |
| 197 | /* |
| 198 | /********************************************************** |
Tatu Saloranta | 81fb43c | 2017-05-17 18:25:34 -0700 | [diff] [blame] | 199 | /* Test support |
| 200 | /********************************************************** |
| 201 | */ |
| 202 | |
| 203 | protected ByteQuadsCanonicalizer symbolTableForTests() { |
| 204 | return _symbols; |
| 205 | } |
| 206 | |
| 207 | /* |
| 208 | /********************************************************** |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 209 | /* Abstract methods from JsonParser |
| 210 | /********************************************************** |
| 211 | */ |
| 212 | |
| 213 | @Override |
| 214 | public abstract int releaseBuffered(OutputStream out) throws IOException; |
| 215 | |
| 216 | @Override |
| 217 | public Object getInputSource() { |
| 218 | // since input is "pushed", to traditional source... |
| 219 | return null; |
| 220 | } |
| 221 | |
| 222 | @Override |
| 223 | protected void _closeInput() throws IOException { |
| 224 | // nothing to do here |
| 225 | } |
| 226 | |
| 227 | /* |
| 228 | /********************************************************************** |
| 229 | /* Overridden methods |
| 230 | /********************************************************************** |
| 231 | */ |
| 232 | |
| 233 | @Override |
| 234 | public boolean hasTextCharacters() |
| 235 | { |
| 236 | if (_currToken == JsonToken.VALUE_STRING) { |
| 237 | // yes; is or can be made available efficiently as char[] |
| 238 | return _textBuffer.hasTextAsCharacters(); |
| 239 | } |
| 240 | if (_currToken == JsonToken.FIELD_NAME) { |
| 241 | // not necessarily; possible but: |
| 242 | return _nameCopied; |
| 243 | } |
| 244 | // other types, no benefit from accessing as char[] |
| 245 | return false; |
| 246 | } |
| 247 | |
| 248 | /* |
| 249 | /********************************************************************** |
| 250 | /* Public API, access to token information, text |
| 251 | /********************************************************************** |
| 252 | */ |
| 253 | |
| 254 | /** |
| 255 | * Method for accessing textual representation of the current event; |
| 256 | * if no current event (before first call to {@link #nextToken}, or |
| 257 | * after encountering end-of-input), returns null. |
| 258 | * Method can be called for any event. |
| 259 | */ |
| 260 | @Override |
| 261 | public String getText() throws IOException |
| 262 | { |
| 263 | if (_currToken == JsonToken.VALUE_STRING) { |
| 264 | return _textBuffer.contentsAsString(); |
| 265 | } |
| 266 | JsonToken t = _currToken; |
| 267 | if (t == null || _currToken == JsonToken.NOT_AVAILABLE) { // null only before/after document |
| 268 | return null; |
| 269 | } |
| 270 | if (t == JsonToken.FIELD_NAME) { |
| 271 | return _parsingContext.getCurrentName(); |
| 272 | } |
| 273 | if (t.isNumeric()) { |
| 274 | // TODO: optimize? |
| 275 | return getNumberValue().toString(); |
| 276 | } |
| 277 | return _currToken.asString(); |
| 278 | } |
| 279 | |
| 280 | @Override |
| 281 | public char[] getTextCharacters() throws IOException |
| 282 | { |
| 283 | switch (currentTokenId()) { |
| 284 | case JsonTokenId.ID_STRING: |
| 285 | return _textBuffer.getTextBuffer(); |
| 286 | case JsonTokenId.ID_FIELD_NAME: |
| 287 | if (!_nameCopied) { |
| 288 | String name = _parsingContext.getCurrentName(); |
| 289 | int nameLen = name.length(); |
| 290 | if (_nameCopyBuffer == null) { |
| 291 | _nameCopyBuffer = _ioContext.allocNameCopyBuffer(nameLen); |
| 292 | } else if (_nameCopyBuffer.length < nameLen) { |
| 293 | _nameCopyBuffer = new char[nameLen]; |
| 294 | } |
| 295 | name.getChars(0, nameLen, _nameCopyBuffer, 0); |
| 296 | _nameCopied = true; |
| 297 | } |
| 298 | return _nameCopyBuffer; |
| 299 | case JsonTokenId.ID_NUMBER_INT: |
| 300 | case JsonTokenId.ID_NUMBER_FLOAT: |
| 301 | return getNumberValue().toString().toCharArray(); |
| 302 | case JsonTokenId.ID_NO_TOKEN: |
| 303 | case JsonTokenId.ID_NOT_AVAILABLE: |
| 304 | return null; |
| 305 | default: |
| 306 | return _currToken.asCharArray(); |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | @Override |
| 311 | public int getTextLength() throws IOException |
| 312 | { |
| 313 | switch (currentTokenId()) { |
| 314 | case JsonTokenId.ID_STRING: |
| 315 | return _textBuffer.size(); |
| 316 | case JsonTokenId.ID_FIELD_NAME: |
| 317 | return _parsingContext.getCurrentName().length(); |
| 318 | case JsonTokenId.ID_NUMBER_INT: |
| 319 | case JsonTokenId.ID_NUMBER_FLOAT: |
| 320 | return getNumberValue().toString().length(); |
| 321 | case JsonTokenId.ID_NO_TOKEN: |
| 322 | case JsonTokenId.ID_NOT_AVAILABLE: |
| 323 | return 0; // or throw exception? |
| 324 | default: |
| 325 | return _currToken.asCharArray().length; |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | @Override |
Tatu Saloranta | 81fb43c | 2017-05-17 18:25:34 -0700 | [diff] [blame] | 330 | public int getTextOffset() throws IOException { |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 331 | return 0; |
| 332 | } |
| 333 | |
Tatu Saloranta | 81fb43c | 2017-05-17 18:25:34 -0700 | [diff] [blame] | 334 | @Override |
| 335 | public int getText(Writer w) throws IOException |
| 336 | { |
| 337 | if (_currToken == JsonToken.VALUE_STRING) { |
| 338 | return _textBuffer.contentsToWriter(w); |
| 339 | } |
| 340 | if (_currToken == JsonToken.NOT_AVAILABLE) { |
| 341 | _reportError("Current token not available: can not call this method"); |
| 342 | } |
| 343 | // otherwise default handling works fine |
| 344 | return super.getText(w); |
| 345 | } |
| 346 | |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 347 | /* |
| 348 | /********************************************************************** |
| 349 | /* Public API, access to token information, binary |
| 350 | /********************************************************************** |
| 351 | */ |
| 352 | |
| 353 | @Override |
| 354 | public byte[] getBinaryValue(Base64Variant b64variant) throws IOException |
| 355 | { |
| 356 | if (_currToken != JsonToken.VALUE_EMBEDDED_OBJECT ) { |
| 357 | _reportError("Current token (%s) not VALUE_EMBEDDED_OBJECT, can not access as binary", _currToken); |
| 358 | } |
| 359 | return _binaryValue; |
| 360 | } |
| 361 | |
| 362 | @Override |
| 363 | public Object getEmbeddedObject() throws IOException |
| 364 | { |
| 365 | if (_currToken == JsonToken.VALUE_EMBEDDED_OBJECT ) { |
| 366 | return _binaryValue; |
| 367 | } |
| 368 | return null; |
| 369 | } |
| 370 | |
| 371 | @Override |
| 372 | public int readBinaryValue(Base64Variant b64variant, OutputStream out) |
| 373 | throws IOException { |
| 374 | if (_currToken != JsonToken.VALUE_EMBEDDED_OBJECT ) { |
| 375 | _reportError("Current token (%s) not VALUE_EMBEDDED_OBJECT, can not access as binary", _currToken); |
| 376 | } |
| 377 | out.write(_binaryValue); |
| 378 | return _binaryValue.length; |
| 379 | } |
| 380 | |
| 381 | /* |
| 382 | /********************************************************************** |
Tatu Saloranta | 8e8ed3e | 2017-05-19 17:07:48 -0700 | [diff] [blame] | 383 | /* Handling of nested scope, state |
| 384 | /********************************************************************** |
| 385 | */ |
| 386 | |
| 387 | protected final JsonToken _startArrayScope() throws IOException |
| 388 | { |
| 389 | _parsingContext = _parsingContext.createChildArrayContext(-1, -1); |
| 390 | _majorState = MAJOR_ARRAY_ELEMENT; |
| 391 | _majorStateAfterValue = MAJOR_ARRAY_ELEMENT; |
| 392 | return (_currToken = JsonToken.START_ARRAY); |
| 393 | } |
| 394 | |
| 395 | protected final JsonToken _startObjectScope() throws IOException |
| 396 | { |
| 397 | _parsingContext = _parsingContext.createChildObjectContext(-1, -1); |
| 398 | _majorState = MAJOR_OBJECT_FIELD; |
| 399 | _majorStateAfterValue = MAJOR_OBJECT_FIELD; |
| 400 | return (_currToken = JsonToken.START_OBJECT); |
| 401 | } |
| 402 | |
| 403 | protected final JsonToken _closeArrayScope() throws IOException |
| 404 | { |
| 405 | if (!_parsingContext.inArray()) { |
| 406 | _reportMismatchedEndMarker(']', '}'); |
| 407 | } |
| 408 | JsonReadContext ctxt = _parsingContext.getParent(); |
| 409 | _parsingContext = ctxt; |
| 410 | int st; |
| 411 | if (ctxt.inObject()) { |
| 412 | st = MAJOR_OBJECT_FIELD; |
| 413 | } else if (ctxt.inArray()) { |
| 414 | st = MAJOR_ARRAY_ELEMENT; |
| 415 | } else { |
| 416 | st = MAJOR_ROOT; |
| 417 | } |
| 418 | _majorState = st; |
| 419 | _majorStateAfterValue = st; |
| 420 | return (_currToken = JsonToken.END_ARRAY); |
| 421 | } |
| 422 | |
| 423 | protected final JsonToken _closeObjectScope() throws IOException |
| 424 | { |
| 425 | if (!_parsingContext.inObject()) { |
| 426 | _reportMismatchedEndMarker('}', ']'); |
| 427 | } |
| 428 | JsonReadContext ctxt = _parsingContext.getParent(); |
| 429 | _parsingContext = ctxt; |
| 430 | int st; |
| 431 | if (ctxt.inObject()) { |
| 432 | st = MAJOR_OBJECT_FIELD; |
| 433 | } else if (ctxt.inArray()) { |
| 434 | st = MAJOR_ARRAY_ELEMENT; |
| 435 | } else { |
| 436 | st = MAJOR_ROOT; |
| 437 | } |
| 438 | _majorState = st; |
| 439 | _majorStateAfterValue = st; |
| 440 | return (_currToken = JsonToken.END_OBJECT); |
| 441 | } |
| 442 | |
| 443 | /* |
| 444 | /********************************************************************** |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 445 | /* Internal methods, field name parsing |
| 446 | /********************************************************************** |
| 447 | */ |
| 448 | |
| 449 | // Helper method for trying to find specified encoded UTF-8 byte sequence |
| 450 | // from symbol table; if successful avoids actual decoding to String |
| 451 | protected final String _findDecodedFromSymbols(byte[] inBuf, int inPtr, int len) throws IOException |
| 452 | { |
| 453 | // First: maybe we already have this name decoded? |
| 454 | if (len < 5) { |
| 455 | int q = inBuf[inPtr] & 0xFF; |
| 456 | if (--len > 0) { |
| 457 | q = (q << 8) + (inBuf[++inPtr] & 0xFF); |
| 458 | if (--len > 0) { |
| 459 | q = (q << 8) + (inBuf[++inPtr] & 0xFF); |
| 460 | if (--len > 0) { |
| 461 | q = (q << 8) + (inBuf[++inPtr] & 0xFF); |
| 462 | } |
| 463 | } |
| 464 | } |
| 465 | _quad1 = q; |
| 466 | return _symbols.findName(q); |
| 467 | } |
| 468 | if (len < 9) { |
| 469 | // First quadbyte is easy |
| 470 | int q1 = (inBuf[inPtr] & 0xFF) << 8; |
| 471 | q1 += (inBuf[++inPtr] & 0xFF); |
| 472 | q1 <<= 8; |
| 473 | q1 += (inBuf[++inPtr] & 0xFF); |
| 474 | q1 <<= 8; |
| 475 | q1 += (inBuf[++inPtr] & 0xFF); |
| 476 | int q2 = (inBuf[++inPtr] & 0xFF); |
| 477 | len -= 5; |
| 478 | if (len > 0) { |
| 479 | q2 = (q2 << 8) + (inBuf[++inPtr] & 0xFF); |
| 480 | if (--len > 0) { |
| 481 | q2 = (q2 << 8) + (inBuf[++inPtr] & 0xFF); |
| 482 | if (--len > 0) { |
| 483 | q2 = (q2 << 8) + (inBuf[++inPtr] & 0xFF); |
| 484 | } |
| 485 | } |
| 486 | } |
| 487 | _quad1 = q1; |
| 488 | _quad2 = q2; |
| 489 | return _symbols.findName(q1, q2); |
| 490 | } |
| 491 | return _findDecodedLonger(inBuf, inPtr, len); |
| 492 | } |
| 493 | |
| 494 | // Method for locating names longer than 8 bytes (in UTF-8) |
| 495 | private final String _findDecodedLonger(byte[] inBuf, int inPtr, int len) throws IOException |
| 496 | { |
| 497 | // first, need enough buffer to store bytes as ints: |
| 498 | { |
| 499 | int bufLen = (len + 3) >> 2; |
| 500 | if (bufLen > _quadBuffer.length) { |
| 501 | _quadBuffer = Arrays.copyOf(_quadBuffer, bufLen+4); |
| 502 | } |
| 503 | } |
| 504 | // then decode, full quads first |
| 505 | int offset = 0; |
| 506 | do { |
| 507 | int q = (inBuf[inPtr++] & 0xFF) << 8; |
| 508 | q |= inBuf[inPtr++] & 0xFF; |
| 509 | q <<= 8; |
| 510 | q |= inBuf[inPtr++] & 0xFF; |
| 511 | q <<= 8; |
| 512 | q |= inBuf[inPtr++] & 0xFF; |
| 513 | _quadBuffer[offset++] = q; |
| 514 | } while ((len -= 4) > 3); |
| 515 | // and then leftovers |
| 516 | if (len > 0) { |
| 517 | int q = inBuf[inPtr] & 0xFF; |
| 518 | if (--len > 0) { |
| 519 | q = (q << 8) + (inBuf[++inPtr] & 0xFF); |
| 520 | if (--len > 0) { |
| 521 | q = (q << 8) + (inBuf[++inPtr] & 0xFF); |
| 522 | } |
| 523 | } |
| 524 | _quadBuffer[offset++] = q; |
| 525 | } |
| 526 | return _symbols.findName(_quadBuffer, offset); |
| 527 | } |
| 528 | |
| 529 | protected final String _addDecodedToSymbols(int len, String name) |
| 530 | { |
| 531 | if (len < 5) { |
Tatu Saloranta | 81fb43c | 2017-05-17 18:25:34 -0700 | [diff] [blame] | 532 | return _symbols.addName(name, _quad1); |
Tatu Saloranta | 056bf5e | 2017-05-14 23:59:00 -0700 | [diff] [blame] | 533 | } |
| 534 | if (len < 9) { |
| 535 | return _symbols.addName(name, _quad1, _quad2); |
| 536 | } |
| 537 | int qlen = (len + 3) >> 2; |
| 538 | return _symbols.addName(name, _quadBuffer, qlen); |
| 539 | } |
| 540 | |
| 541 | /* |
| 542 | /********************************************************************** |
| 543 | /* Internal methods, state changes |
| 544 | /********************************************************************** |
| 545 | */ |
| 546 | |
| 547 | /** |
| 548 | * Helper method called at point when all input has been exhausted and |
| 549 | * input feeder has indicated no more input will be forthcoming. |
| 550 | */ |
| 551 | protected final JsonToken _eofAsNextToken() throws IOException { |
| 552 | _majorState = MAJOR_CLOSED; |
| 553 | if (!_parsingContext.inRoot()) { |
| 554 | _handleEOF(); |
| 555 | } |
| 556 | close(); |
| 557 | return (_currToken = null); |
| 558 | } |
| 559 | |
| 560 | protected final JsonToken _valueComplete(JsonToken t) throws IOException |
| 561 | { |
| 562 | _majorState = _majorStateAfterValue; |
| 563 | _currToken = t; |
| 564 | return t; |
| 565 | } |
| 566 | |
| 567 | /* |
| 568 | /********************************************************************** |
| 569 | /* Internal methods, error reporting |
| 570 | /********************************************************************** |
| 571 | */ |
| 572 | |
| 573 | protected void _reportInvalidInitial(int mask) throws JsonParseException { |
| 574 | _reportError("Invalid UTF-8 start byte 0x"+Integer.toHexString(mask)); |
| 575 | } |
| 576 | |
| 577 | protected void _reportInvalidOther(int mask, int ptr) throws JsonParseException { |
| 578 | _inputPtr = ptr; |
| 579 | _reportError("Invalid UTF-8 middle byte 0x"+Integer.toHexString(mask)); |
| 580 | } |
| 581 | } |