org.codehaus.jackson.impl
Class Utf8StreamParser

java.lang.Object
  extended by org.codehaus.jackson.JsonParser
      extended by org.codehaus.jackson.impl.JsonParserBase
          extended by org.codehaus.jackson.impl.JsonNumericParserBase
              extended by org.codehaus.jackson.impl.StreamBasedParserBase
                  extended by org.codehaus.jackson.impl.Utf8NumericParser
                      extended by org.codehaus.jackson.impl.Utf8StreamParser
All Implemented Interfaces:
Closeable

public final class Utf8StreamParser
extends Utf8NumericParser

This is a concrete implementation of JsonParser, which is based on a InputStream as the input source.


Nested Class Summary
 
Nested classes/interfaces inherited from class org.codehaus.jackson.JsonParser
JsonParser.Feature, JsonParser.NumberType
 
Field Summary
protected  ObjectCodec _objectCodec
          Codec used for data binding when (if) requested.
protected  int[] _quadBuffer
          Temporary buffer used for name parsing.
protected  BytesToNameCanonicalizer _symbols
          Symbol table that contains field names encountered so far
 
Fields inherited from class org.codehaus.jackson.impl.StreamBasedParserBase
_bufferRecyclable, _inputBuffer, _inputStream
 
Fields inherited from class org.codehaus.jackson.impl.JsonNumericParserBase
_numberBigDecimal, _numberBigInt, _numberDouble, _numberInt, _numberLong, _numberNegative, _numTypesValid, CHAR_NULL, INT_0, INT_1, INT_2, INT_3, INT_4, INT_5, INT_6, INT_7, INT_8, INT_9, INT_DECIMAL_POINT, INT_e, INT_E, INT_MINUS, INT_PLUS, mExpLength, mFractLength, mIntLength, NR_BIGDECIMAL, NR_BIGINT, NR_DOUBLE, NR_INT, NR_LONG, NR_UNKNOWN
 
Fields inherited from class org.codehaus.jackson.impl.JsonParserBase
_binaryValue, _closed, _currInputProcessed, _currInputRow, _currInputRowStart, _inputEnd, _inputPtr, _ioContext, _nameCopied, _nameCopyBuffer, _nextToken, _parsingContext, _textBuffer, _tokenIncomplete, _tokenInputCol, _tokenInputRow, _tokenInputTotal
 
Fields inherited from class org.codehaus.jackson.JsonParser
_currToken, _features, _lastClearedToken
 
Constructor Summary
Utf8StreamParser(IOContext ctxt, int features, InputStream in, ObjectCodec codec, BytesToNameCanonicalizer sym, byte[] inputBuffer, int start, int end, boolean bufferRecyclable)
           
 
Method Summary
protected  byte[] _decodeBase64(Base64Variant b64variant)
           
protected  int _decodeCharForError(int firstByte)
           
protected  char _decodeEscaped()
           
protected  void _finishString()
           
protected  JsonToken _handleUnexpectedValue(int c)
          Method for handling cases where first non-space character of an expected value token is not legal for standard JSON content.
protected  Name _handleUnusualFieldName(int ch)
          Method called when we see non-white space character other than double quote, when expecting a field name.
protected  void _matchToken(JsonToken token)
           
protected  Name _parseApostropheFieldName()
           
protected  Name _parseFieldName(int i)
           
protected  void _reportInvalidChar(int c)
           
protected  void _reportInvalidInitial(int mask)
           
protected  void _reportInvalidOther(int mask)
           
protected  void _reportInvalidOther(int mask, int ptr)
           
protected  void _skipCR()
          We actually need to check the character value here (to see if we have \n following \r).
protected  void _skipLF()
           
protected  void _skipString()
          Method called to skim through rest of unparsed String value, if it is not needed.
 void close()
          Closes the parser so that no further iteration or data access can be made; will also close the underlying input source if parser either owns the input source, or feature JsonParser.Feature.AUTO_CLOSE_SOURCE is enabled.
 ObjectCodec getCodec()
          Accessor for ObjectCodec associated with this parser, if any.
static int[] growArrayBy(int[] arr, int more)
           
 JsonToken nextToken()
          Main iteration method, which will advance stream enough to determine type of the next token, if any.
protected  Name parseEscapedFieldName(int[] quads, int qlen, int currQuad, int ch, int currQuadBytes)
          Slower parsing method which is generally branched to when an escape sequence is detected (or alternatively for long names, or ones crossing input buffer boundary).
protected  Name parseLongFieldName(int q)
           
protected  Name parseMediumFieldName(int q1, int q2)
           
protected  IllegalArgumentException reportInvalidChar(Base64Variant b64variant, int ch, int bindex)
           
protected  IllegalArgumentException reportInvalidChar(Base64Variant b64variant, int ch, int bindex, String msg)
           
 void setCodec(ObjectCodec c)
          Setter that allows defining ObjectCodec associated with this parser, if any.
protected  Name slowParseFieldName()
          Method called when not even first 8 bytes are guaranteed to come consequtively.
 
Methods inherited from class org.codehaus.jackson.impl.Utf8NumericParser
parseNumberText
 
Methods inherited from class org.codehaus.jackson.impl.StreamBasedParserBase
_closeInput, _releaseBuffers, loadMore
 
Methods inherited from class org.codehaus.jackson.impl.JsonNumericParserBase
convertNumberToBigDecimal, convertNumberToBigInteger, convertNumberToDouble, convertNumberToInt, convertNumberToLong, getBigIntegerValue, getDecimalValue, getDoubleValue, getFloatValue, getIntValue, getLongValue, getNumberType, getNumberValue, parseNumericValue, reportInvalidNumber, reportOverflowInt, reportOverflowLong, reportUnexpectedNumberChar, reset
 
Methods inherited from class org.codehaus.jackson.impl.JsonParserBase
_constructError, _getByteArrayBuilder, _getCharDesc, _handleEOF, _reportError, _reportInvalidEOF, _reportInvalidEOF, _reportMismatchedEndMarker, _reportUnexpectedChar, _throwInternal, _throwInvalidSpace, _throwUnquotedSpace, _wrapError, getBinaryValue, getCurrentLocation, getCurrentName, getParsingContext, getText, getTextCharacters, getTextLength, getTextOffset, getTokenCharacterOffset, getTokenColumnNr, getTokenLineNr, getTokenLocation, isClosed, loadMoreGuaranteed, skipChildren
 
Methods inherited from class org.codehaus.jackson.JsonParser
_constructError, clearCurrentToken, configure, disable, disableFeature, enable, enableFeature, getBinaryValue, getBooleanValue, getByteValue, getCurrentToken, getEmbeddedObject, getLastClearedToken, getShortValue, hasCurrentToken, isEnabled, isFeatureEnabled, nextValue, readValueAs, readValueAs, readValueAsTree, setFeature
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

_objectCodec

protected ObjectCodec _objectCodec
Codec used for data binding when (if) requested.


_symbols

protected final BytesToNameCanonicalizer _symbols
Symbol table that contains field names encountered so far


_quadBuffer

protected int[] _quadBuffer
Temporary buffer used for name parsing.

Constructor Detail

Utf8StreamParser

public Utf8StreamParser(IOContext ctxt,
                        int features,
                        InputStream in,
                        ObjectCodec codec,
                        BytesToNameCanonicalizer sym,
                        byte[] inputBuffer,
                        int start,
                        int end,
                        boolean bufferRecyclable)
Method Detail

getCodec

public ObjectCodec getCodec()
Description copied from class: JsonParser
Accessor for ObjectCodec associated with this parser, if any. Codec is used by JsonParser.readValueAs(Class) method (and its variants).

Specified by:
getCodec in class JsonParser

setCodec

public void setCodec(ObjectCodec c)
Description copied from class: JsonParser
Setter that allows defining ObjectCodec associated with this parser, if any. Codec is used by JsonParser.readValueAs(Class) method (and its variants).

Specified by:
setCodec in class JsonParser

nextToken

public JsonToken nextToken()
                    throws IOException,
                           JsonParseException
Description copied from class: JsonParser
Main iteration method, which will advance stream enough to determine type of the next token, if any. If none remaining (stream has no content other than possible white space before ending), null will be returned.

Specified by:
nextToken in class JsonParserBase
Returns:
Next token from the stream, if any found, or null to indicate end-of-input
Throws:
IOException
JsonParseException

close

public void close()
           throws IOException
Description copied from class: JsonParser
Closes the parser so that no further iteration or data access can be made; will also close the underlying input source if parser either owns the input source, or feature JsonParser.Feature.AUTO_CLOSE_SOURCE is enabled. Whether parser owns the input source depends on factory method that was used to construct instance (so check JsonFactory for details, but the general idea is that if caller passes in closable resource (such as InputStream or Reader) parser does NOT own the source; but if it passes a reference (such as File or URL and creates stream or reader it does own them.

Specified by:
close in interface Closeable
Overrides:
close in class JsonParserBase
Throws:
IOException

_parseFieldName

protected final Name _parseFieldName(int i)
                              throws IOException,
                                     JsonParseException
Throws:
IOException
JsonParseException

parseMediumFieldName

protected Name parseMediumFieldName(int q1,
                                    int q2)
                             throws IOException,
                                    JsonParseException
Throws:
IOException
JsonParseException

parseLongFieldName

protected Name parseLongFieldName(int q)
                           throws IOException,
                                  JsonParseException
Throws:
IOException
JsonParseException

slowParseFieldName

protected Name slowParseFieldName()
                           throws IOException,
                                  JsonParseException
Method called when not even first 8 bytes are guaranteed to come consequtively. Happens rarely, so this is offlined; plus we'll also do full checks for escaping etc.

Throws:
IOException
JsonParseException

parseEscapedFieldName

protected Name parseEscapedFieldName(int[] quads,
                                     int qlen,
                                     int currQuad,
                                     int ch,
                                     int currQuadBytes)
                              throws IOException,
                                     JsonParseException
Slower parsing method which is generally branched to when an escape sequence is detected (or alternatively for long names, or ones crossing input buffer boundary). In any case, needs to be able to handle more exceptional cases, gets slower, and hance is offlined to a separate method.

Throws:
IOException
JsonParseException

_handleUnusualFieldName

protected final Name _handleUnusualFieldName(int ch)
                                      throws IOException,
                                             JsonParseException
Method called when we see non-white space character other than double quote, when expecting a field name. In standard mode will just throw an expection; but in non-standard modes may be able to parse name.

Throws:
IOException
JsonParseException

_parseApostropheFieldName

protected final Name _parseApostropheFieldName()
                                        throws IOException,
                                               JsonParseException
Throws:
IOException
JsonParseException

_finishString

protected void _finishString()
                      throws IOException,
                             JsonParseException
Specified by:
_finishString in class JsonParserBase
Throws:
IOException
JsonParseException

_skipString

protected void _skipString()
                    throws IOException,
                           JsonParseException
Method called to skim through rest of unparsed String value, if it is not needed. This can be done bit faster if contents need not be stored for future access.

Throws:
IOException
JsonParseException

_handleUnexpectedValue

protected final JsonToken _handleUnexpectedValue(int c)
                                          throws IOException,
                                                 JsonParseException
Method for handling cases where first non-space character of an expected value token is not legal for standard JSON content.

Throws:
IOException
JsonParseException
Since:
1.3

_matchToken

protected void _matchToken(JsonToken token)
                    throws IOException,
                           JsonParseException
Throws:
IOException
JsonParseException

_decodeEscaped

protected final char _decodeEscaped()
                             throws IOException,
                                    JsonParseException
Throws:
IOException
JsonParseException

_decodeCharForError

protected int _decodeCharForError(int firstByte)
                           throws IOException,
                                  JsonParseException
Throws:
IOException
JsonParseException

_skipCR

protected final void _skipCR()
                      throws IOException
We actually need to check the character value here (to see if we have \n following \r).

Throws:
IOException

_skipLF

protected final void _skipLF()
                      throws IOException
Throws:
IOException

_reportInvalidChar

protected void _reportInvalidChar(int c)
                           throws JsonParseException
Throws:
JsonParseException

_reportInvalidInitial

protected void _reportInvalidInitial(int mask)
                              throws JsonParseException
Throws:
JsonParseException

_reportInvalidOther

protected void _reportInvalidOther(int mask)
                            throws JsonParseException
Throws:
JsonParseException

_reportInvalidOther

protected void _reportInvalidOther(int mask,
                                   int ptr)
                            throws JsonParseException
Throws:
JsonParseException

growArrayBy

public static int[] growArrayBy(int[] arr,
                                int more)

_decodeBase64

protected byte[] _decodeBase64(Base64Variant b64variant)
                        throws IOException,
                               JsonParseException
Specified by:
_decodeBase64 in class JsonParserBase
Throws:
IOException
JsonParseException

reportInvalidChar

protected IllegalArgumentException reportInvalidChar(Base64Variant b64variant,
                                                     int ch,
                                                     int bindex)
                                              throws IllegalArgumentException
Throws:
IllegalArgumentException

reportInvalidChar

protected IllegalArgumentException reportInvalidChar(Base64Variant b64variant,
                                                     int ch,
                                                     int bindex,
                                                     String msg)
                                              throws IllegalArgumentException
Parameters:
bindex - Relative index within base64 character unit; between 0 and 3 (as unit has exactly 4 characters)
Throws:
IllegalArgumentException