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

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  int[] _quadBuffer
          This buffer is used for name parsing.
protected  BytesToNameCanonicalizer _symbols
           
 
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, java.io.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  void _matchToken(JsonToken token)
           
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.
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)
           
<T> T
readValueAs(java.lang.Class<T> valueType)
          Method to deserialize Json content into a non-container type (it can be an array type, however): typically a bean, array or a wrapper type (like Boolean).
<T> T
readValueAs(TypeReference<?> valueTypeRef)
          Method to deserialize Json content into a Java type, reference to which is passed as argument.
 JsonNode readValueAsTree()
          Method to deserialize Json content into equivalent "tree model", represented by root JsonNode of resulting model.
protected  java.lang.IllegalArgumentException reportInvalidChar(Base64Variant b64variant, int ch, int bindex)
           
protected  java.lang.IllegalArgumentException reportInvalidChar(Base64Variant b64variant, int ch, int bindex, java.lang.String msg)
           
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, getByteValue, getDecimalValue, getDoubleValue, getFloatValue, getIntValue, getLongValue, getNumberType, getNumberValue, getShortValue, parseNumericValue, reportInvalidNumber, reportOverflowInt, reportOverflowLong, reportUnexpectedNumberChar, reset
 
Methods inherited from class org.codehaus.jackson.impl.JsonParserBase
_constructError, _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, nextValue, skipChildren
 
Methods inherited from class org.codehaus.jackson.JsonParser
clearCurrentToken, disableFeature, enableFeature, getBinaryValue, getCurrentToken, getLastClearedToken, hasCurrentToken, isFeatureEnabled, setFeature
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

_symbols

protected final BytesToNameCanonicalizer _symbols

_quadBuffer

protected int[] _quadBuffer
This buffer is used for name parsing.

Constructor Detail

Utf8StreamParser

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

nextToken

public JsonToken nextToken()
                    throws java.io.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:
java.io.IOException
JsonParseException

close

public void close()
           throws java.io.IOException
Description copied from class: JsonParser
Closes the parser so that no further iteration or data access can be made.

Method 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.

Overrides:
close in class JsonParserBase
Throws:
java.io.IOException

readValueAs

public final <T> T readValueAs(java.lang.Class<T> valueType)
                    throws java.io.IOException,
                           JsonProcessingException
Description copied from class: JsonParser
Method to deserialize Json content into a non-container type (it can be an array type, however): typically a bean, array or a wrapper type (like Boolean). Note: method can only be called if the parser has an object codec assigned; this is true for parsers constructed by MappingJsonFactory but not for JsonFactory (unless its setCodec method has been explicitly called).

This method may advance the evens stream, for structured types the current event will be the closing end marker (END_ARRAY, END_OBJECT) of the bound structure. For non-structured Json types stream is not advanced.

Note: this method should NOT be used if the result type is a container (Collection or Map. The reason is that due to type erasure, key and value types can not be introspected when using this method.

Specified by:
readValueAs in class JsonParser
Throws:
java.io.IOException
JsonProcessingException

readValueAs

public final <T> T readValueAs(TypeReference<?> valueTypeRef)
                    throws java.io.IOException,
                           JsonProcessingException
Description copied from class: JsonParser
Method to deserialize Json content into a Java type, reference to which is passed as argument. Type is passed using so-called "super type token" and specifically needs to be used if the root type is a parameterized (generic) container type. Note: method can only be called if the parser has an object codec assigned; this is true for parsers constructed by MappingJsonFactory but not for JsonFactory (unless its setCodec method has been explicitly called).

This method may advance the event stream, for structured types the current event will be the closing end marker (END_ARRAY, END_OBJECT) of the bound structure. For non-structured Json types stream is not advanced.

Specified by:
readValueAs in class JsonParser
Throws:
java.io.IOException
JsonProcessingException

readValueAsTree

public final JsonNode readValueAsTree()
                               throws java.io.IOException,
                                      JsonProcessingException
Description copied from class: JsonParser
Method to deserialize Json content into equivalent "tree model", represented by root JsonNode of resulting model. For Json Arrays it will an array node (with child nodes), for objects object node (with child nodes), and for other types matching leaf node type

Specified by:
readValueAsTree in class JsonParser
Throws:
java.io.IOException
JsonProcessingException

_parseFieldName

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

parseMediumFieldName

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

parseLongFieldName

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

slowParseFieldName

protected Name slowParseFieldName()
                           throws java.io.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:
java.io.IOException
JsonParseException

parseEscapedFieldName

protected Name parseEscapedFieldName(int[] quads,
                                     int qlen,
                                     int currQuad,
                                     int ch,
                                     int currQuadBytes)
                              throws java.io.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:
java.io.IOException
JsonParseException

_finishString

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

_skipString

protected void _skipString()
                    throws java.io.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:
java.io.IOException
JsonParseException

_matchToken

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

_decodeEscaped

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

_decodeCharForError

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

_skipCR

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

Throws:
java.io.IOException

_skipLF

protected final void _skipLF()
                      throws java.io.IOException
Throws:
java.io.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 java.io.IOException,
                               JsonParseException
Specified by:
_decodeBase64 in class JsonParserBase
Throws:
java.io.IOException
JsonParseException

reportInvalidChar

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

reportInvalidChar

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