public final class UTF8StreamJsonParser extends ParserBase
JsonParser, which is
based on a InputStream as the input source.JsonParser.Feature, JsonParser.NumberType| Modifier and Type | Field and Description |
|---|---|
protected boolean |
_bufferRecyclable
Flag that indicates whether the input buffer is recycable (and
needs to be returned to recycler once we are done) or not.
|
protected byte[] |
_inputBuffer
Current buffer from which data is read; generally data is read into
buffer from input source, but in some cases pre-loaded buffer
is handed to the parser.
|
protected InputStream |
_inputStream |
protected ObjectCodec |
_objectCodec
Codec used for data binding when (if) requested; typically full
ObjectMapper, but that abstract is not part of core
package. |
protected int[] |
_quadBuffer
Temporary buffer used for name parsing.
|
protected BytesToNameCanonicalizer |
_symbols
Symbol table that contains field names encountered so far
|
protected boolean |
_tokenIncomplete
Flag that indicates that the current token has not yet
been fully processed, and needs to be finished for
some access (or skipped to obtain the next token)
|
_binaryValue, _byteArrayBuilder, _closed, _currInputProcessed, _currInputRow, _currInputRowStart, _expLength, _fractLength, _inputEnd, _inputPtr, _intLength, _ioContext, _nameCopied, _nameCopyBuffer, _nextToken, _numberBigDecimal, _numberBigInt, _numberDouble, _numberInt, _numberLong, _numberNegative, _numTypesValid, _parsingContext, _textBuffer, _tokenInputCol, _tokenInputRow, _tokenInputTotal, 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, NR_BIGDECIMAL, NR_BIGINT, NR_DOUBLE, NR_INT, NR_LONG, NR_UNKNOWN_currToken, _lastClearedToken, INT_APOSTROPHE, INT_ASTERISK, INT_b, INT_BACKSLASH, INT_COLON, INT_COMMA, INT_CR, INT_f, INT_LBRACKET, INT_LCURLY, INT_LF, INT_n, INT_QUOTE, INT_r, INT_RBRACKET, INT_RCURLY, INT_SLASH, INT_SPACE, INT_t, INT_TAB, INT_u_features| Constructor and Description |
|---|
UTF8StreamJsonParser(IOContext ctxt,
int features,
InputStream in,
ObjectCodec codec,
BytesToNameCanonicalizer sym,
byte[] inputBuffer,
int start,
int end,
boolean bufferRecyclable) |
| Modifier and Type | Method and Description |
|---|---|
protected void |
_closeInput() |
protected byte[] |
_decodeBase64(Base64Variant b64variant)
Efficient handling for incremental parsing of base64-encoded
textual content.
|
protected int |
_decodeCharForError(int firstByte) |
protected char |
_decodeEscaped()
Method that sub-classes must implement to support escaped sequences
in base64-encoded sections.
|
protected void |
_finishString() |
protected String |
_getText2(JsonToken t) |
protected JsonToken |
_handleApostropheValue() |
protected JsonToken |
_handleInvalidNumberStart(int ch,
boolean neg)
Method called if expected numeric value (due to leading sign) does not
look like a number
|
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 boolean |
_loadToHaveAtLeast(int minAvailable)
Helper method that will try to load at least specified number bytes in
input buffer, possible moving existing data around if necessary
|
protected void |
_matchToken(String matchStr,
int i) |
protected Name |
_parseApostropheFieldName() |
protected Name |
_parseFieldName(int i) |
protected int |
_readBinary(Base64Variant b64variant,
OutputStream out,
byte[] buffer) |
protected void |
_releaseBuffers()
Method called to release internal buffers owned by the base
reader.
|
protected void |
_reportInvalidChar(int c) |
protected void |
_reportInvalidInitial(int mask) |
protected void |
_reportInvalidOther(int mask) |
protected void |
_reportInvalidOther(int mask,
int ptr) |
protected void |
_reportInvalidToken(String matchedPart) |
protected void |
_reportInvalidToken(String matchedPart,
String msg) |
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. |
byte[] |
getBinaryValue(Base64Variant b64variant)
Method that can be used to read (and consume -- results
may not be accessible using other methods after the call)
base64-encoded binary data
included in the current textual JSON value.
|
ObjectCodec |
getCodec()
Accessor for
ObjectCodec associated with this
parser, if any. |
Object |
getInputSource()
Method that can be used to get access to object that is used
to access input being parsed; this is usually either
InputStream or Reader, depending on what
parser was constructed with. |
String |
getText()
Method for accessing textual representation of the current token;
if no current token (before first call to
JsonParser.nextToken(), or
after encountering end-of-input), returns null. |
char[] |
getTextCharacters()
Method similar to
JsonParser.getText(), but that will return
underlying (unmodifiable) character array that contains
textual value, instead of constructing a String object
to contain this information. |
int |
getTextLength()
Accessor used with
JsonParser.getTextCharacters(), to know length
of String stored in returned buffer. |
int |
getTextOffset()
Accessor used with
JsonParser.getTextCharacters(), to know offset
of the first text content character within buffer. |
String |
getValueAsString()
Method that will try to convert value of current token to a
String. |
String |
getValueAsString(String defValue)
Method that will try to convert value of current token to a
String. |
static int[] |
growArrayBy(int[] arr,
int more) |
protected boolean |
loadMore() |
Boolean |
nextBooleanValue()
Method that fetches next token (as if calling
JsonParser.nextToken()) and
if it is JsonToken.VALUE_TRUE or JsonToken.VALUE_FALSE
returns matching Boolean value; otherwise return null. |
boolean |
nextFieldName(SerializableString str)
Method that fetches next token (as if calling
JsonParser.nextToken()) and
verifies whether it is JsonToken.FIELD_NAME with specified name
and returns result of that comparison. |
int |
nextIntValue(int defaultValue)
Method that fetches next token (as if calling
JsonParser.nextToken()) and
if it is JsonToken.VALUE_NUMBER_INT returns 32-bit int value;
otherwise returns specified default value
It is functionally equivalent to: |
long |
nextLongValue(long defaultValue)
Method that fetches next token (as if calling
JsonParser.nextToken()) and
if it is JsonToken.VALUE_NUMBER_INT returns 64-bit long value;
otherwise returns specified default value
It is functionally equivalent to: |
String |
nextTextValue()
Method that fetches next token (as if calling
JsonParser.nextToken()) and
if it is JsonToken.VALUE_STRING returns contained String value;
otherwise returns null. |
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 q2,
int[] codes) |
protected JsonToken |
parseNumberText(int c)
Initial parsing method for number values.
|
int |
readBinaryValue(Base64Variant b64variant,
OutputStream out)
Similar to
JsonParser.readBinaryValue(OutputStream) but allows explicitly
specifying base64 variant to use. |
int |
releaseBuffered(OutputStream out)
Method that can be called to push back any content that
has been read but not consumed by the parser.
|
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.
|
_decodeBase64Escape, _decodeBase64Escape, _getByteArrayBuilder, _handleEOF, _parseNumericValue, _reportMismatchedEndMarker, convertNumberToBigDecimal, convertNumberToBigInteger, convertNumberToDouble, convertNumberToInt, convertNumberToLong, getBigIntegerValue, getCurrentLocation, getCurrentName, getDecimalValue, getDoubleValue, getEmbeddedObject, getFloatValue, getIntValue, getLongValue, getNumberType, getNumberValue, getParsingContext, getTokenCharacterOffset, getTokenColumnNr, getTokenLineNr, getTokenLocation, hasTextCharacters, isClosed, loadMoreGuaranteed, overrideCurrentName, reportInvalidBase64Char, reportInvalidBase64Char, reportInvalidNumber, reportOverflowInt, reportOverflowLong, reportUnexpectedNumberChar, reset, resetAsNaN, resetFloat, resetInt, version_constructError, _decodeBase64, _getCharDesc, _handleUnrecognizedCharacterEscape, _reportBase64EOF, _reportError, _reportInvalidBase64, _reportInvalidEOF, _reportInvalidEOF, _reportInvalidEOFInValue, _reportUnexpectedChar, _throwInternal, _throwInvalidSpace, _throwUnquotedSpace, _wrapError, clearCurrentToken, getCurrentToken, getLastClearedToken, getValueAsBoolean, getValueAsDouble, getValueAsInt, getValueAsLong, hasCurrentToken, nextValue, skipChildren_constructError, _reportUnsupportedOperation, canUseSchema, configure, disable, enable, getBinaryValue, getBooleanValue, getByteValue, getSchema, getShortValue, getValueAsBoolean, getValueAsDouble, getValueAsInt, getValueAsLong, isEnabled, isExpectedStartArrayToken, readBinaryValue, readValueAs, readValueAs, readValueAsTree, readValuesAs, readValuesAs, releaseBuffered, requiresCustomCodec, setSchemaprotected ObjectCodec _objectCodec
ObjectMapper, but that abstract is not part of core
package.protected final BytesToNameCanonicalizer _symbols
protected int[] _quadBuffer
protected boolean _tokenIncomplete
protected InputStream _inputStream
protected byte[] _inputBuffer
protected boolean _bufferRecyclable
If it is not, it also means that parser can NOT modify underlying buffer.
public UTF8StreamJsonParser(IOContext ctxt, int features, InputStream in, ObjectCodec codec, BytesToNameCanonicalizer sym, byte[] inputBuffer, int start, int end, boolean bufferRecyclable)
public ObjectCodec getCodec()
JsonParserObjectCodec associated with this
parser, if any. Codec is used by JsonParser.readValueAs(Class)
method (and its variants).getCodec in class JsonParserpublic void setCodec(ObjectCodec c)
JsonParserObjectCodec associated with this
parser, if any. Codec is used by JsonParser.readValueAs(Class)
method (and its variants).setCodec in class JsonParserpublic int releaseBuffered(OutputStream out) throws IOException
JsonParserreleaseBuffered in class JsonParserOutputStream;
otherwise number of bytes released (0 if there was nothing to release)IOException - if write to stream threw exceptionpublic Object getInputSource()
JsonParserInputStream or Reader, depending on what
parser was constructed with.
Note that returned value may be null in some cases; including
case where parser implementation does not want to exposed raw
source to caller.
In cases where input has been decorated, object returned here
is the decorated version; this allows some level of interaction
between users of parser and decorator object.
In general use of this accessor should be considered as "last effort", i.e. only used if no other mechanism is applicable.
getInputSource in class JsonParserprotected boolean loadMore()
throws IOException
loadMore in class ParserBaseIOExceptionprotected boolean _loadToHaveAtLeast(int minAvailable)
throws IOException
IOExceptionprotected void _closeInput()
throws IOException
_closeInput in class ParserBaseIOExceptionprotected void _releaseBuffers()
throws IOException
_closeInput() (for
example, when explicitly closing this reader instance), or
separately (if need be)._releaseBuffers in class ParserBaseIOExceptionpublic String getText() throws IOException, JsonParseException
JsonParserJsonParser.nextToken(), or
after encountering end-of-input), returns null.
Method can be called for any token type.getText in class ParserMinimalBaseIOExceptionJsonParseExceptionpublic String getValueAsString() throws IOException, JsonParseException
JsonParserString.
JSON Strings map naturally; scalar values get converted to
their textual representation.
If representation can not be converted to a String value (including structured types
like Objects and Arrays and null token), default value of
null will be returned; no exceptions are thrown.getValueAsString in class JsonParserIOExceptionJsonParseExceptionpublic String getValueAsString(String defValue) throws IOException, JsonParseException
JsonParserString.
JSON Strings map naturally; scalar values get converted to
their textual representation.
If representation can not be converted to a String value (including structured types
like Objects and Arrays and null token), specified default value
will be returned; no exceptions are thrown.getValueAsString in class ParserMinimalBaseIOExceptionJsonParseExceptionpublic char[] getTextCharacters()
throws IOException,
JsonParseException
JsonParserJsonParser.getText(), but that will return
underlying (unmodifiable) character array that contains
textual value, instead of constructing a String object
to contain this information.
Note, however, that:
JsonParser.getTextOffset()) to
know the actual offset
JsonParser.getTextLength()
for actual length of returned content.
Note that caller MUST NOT modify the returned character array in any way -- doing so may corrupt current parser state and render parser instance useless.
The only reason to call this method (over JsonParser.getText())
is to avoid construction of a String object (which
will make a copy of contents).
getTextCharacters in class ParserMinimalBaseIOExceptionJsonParseExceptionpublic int getTextLength()
throws IOException,
JsonParseException
JsonParserJsonParser.getTextCharacters(), to know length
of String stored in returned buffer.getTextLength in class ParserMinimalBaseJsonParser.getTextCharacters() that are part of
textual content of the current token.IOExceptionJsonParseExceptionpublic int getTextOffset()
throws IOException,
JsonParseException
JsonParserJsonParser.getTextCharacters(), to know offset
of the first text content character within buffer.getTextOffset in class ParserMinimalBaseJsonParser.getTextCharacters() that is part of
textual content of the current token.IOExceptionJsonParseExceptionpublic byte[] getBinaryValue(Base64Variant b64variant) throws IOException, JsonParseException
JsonParserJsonParser.getText()
and decoding result (except for decoding part),
but should be significantly more performant.
Note that non-decoded textual contents of the current token are not guaranteed to be accessible after this method is called. Current implementation, for example, clears up textual content during decoding. Decoded binary content, however, will be retained until parser is advanced to the next event.
getBinaryValue in class ParserMinimalBaseb64variant - Expected variant of base64 encoded
content (see Base64Variants for definitions
of "standard" variants).IOExceptionJsonParseExceptionpublic int readBinaryValue(Base64Variant b64variant, OutputStream out) throws IOException, JsonParseException
JsonParserJsonParser.readBinaryValue(OutputStream) but allows explicitly
specifying base64 variant to use.readBinaryValue in class JsonParserb64variant - base64 variant to useout - Output stream to use for passing decoded binary dataOutputStreamIOExceptionJsonParseExceptionprotected int _readBinary(Base64Variant b64variant, OutputStream out, byte[] buffer) throws IOException, JsonParseException
IOExceptionJsonParseExceptionpublic JsonToken nextToken() throws IOException, JsonParseException
JsonParsernextToken in class ParserMinimalBaseIOExceptionJsonParseExceptionpublic void close()
throws IOException
JsonParserJsonParser.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.close in interface Closeableclose in interface AutoCloseableclose in class ParserBaseIOExceptionpublic boolean nextFieldName(SerializableString str) throws IOException, JsonParseException
JsonParserJsonParser.nextToken()) and
verifies whether it is JsonToken.FIELD_NAME with specified name
and returns result of that comparison.
It is functionally equivalent to:
return (nextToken() == JsonToken.FIELD_NAME) && str.getValue().equals(getCurrentName());but may be faster for parser to verify, and can therefore be used if caller expects to get such a property name from input next.
nextFieldName in class JsonParserstr - Property name to compare next token to (if next token is JsonToken.FIELD_NAME)IOExceptionJsonParseExceptionpublic String nextTextValue() throws IOException, JsonParseException
JsonParserJsonParser.nextToken()) and
if it is JsonToken.VALUE_STRING returns contained String value;
otherwise returns null.
It is functionally equivalent to:
return (nextToken() == JsonToken.VALUE_STRING) ? getText() : null;but may be faster for parser to process, and can therefore be used if caller expects to get a String value next from input.
nextTextValue in class JsonParserIOExceptionJsonParseExceptionpublic int nextIntValue(int defaultValue)
throws IOException,
JsonParseException
JsonParserJsonParser.nextToken()) and
if it is JsonToken.VALUE_NUMBER_INT returns 32-bit int value;
otherwise returns specified default value
It is functionally equivalent to:
return (nextToken() == JsonToken.VALUE_NUMBER_INT) ? getIntValue() : defaultValue;but may be faster for parser to process, and can therefore be used if caller expects to get a String value next from input.
nextIntValue in class JsonParserIOExceptionJsonParseExceptionpublic long nextLongValue(long defaultValue)
throws IOException,
JsonParseException
JsonParserJsonParser.nextToken()) and
if it is JsonToken.VALUE_NUMBER_INT returns 64-bit long value;
otherwise returns specified default value
It is functionally equivalent to:
return (nextToken() == JsonToken.VALUE_NUMBER_INT) ? getLongValue() : defaultValue;but may be faster for parser to process, and can therefore be used if caller expects to get a String value next from input.
nextLongValue in class JsonParserIOExceptionJsonParseExceptionpublic Boolean nextBooleanValue() throws IOException, JsonParseException
JsonParserJsonParser.nextToken()) and
if it is JsonToken.VALUE_TRUE or JsonToken.VALUE_FALSE
returns matching Boolean value; otherwise return null.
It is functionally equivalent to:
JsonToken t = nextToken(); if (t == JsonToken.VALUE_TRUE) return Boolean.TRUE; if (t == JsonToken.VALUE_FALSE) return Boolean.FALSE; return null;but may be faster for parser to process, and can therefore be used if caller expects to get a String value next from input.
nextBooleanValue in class JsonParserIOExceptionJsonParseExceptionprotected JsonToken parseNumberText(int c) throws IOException, JsonParseException
Because much of input has to be processed in any case, no partial parsing is done: all input text will be stored for further processing. However, actual numeric value conversion will be deferred, since it is usually the most complicated and costliest part of processing.
IOExceptionJsonParseExceptionprotected Name _parseFieldName(int i) throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected Name parseMediumFieldName(int q2, int[] codes) throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected Name parseLongFieldName(int q) throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected Name slowParseFieldName() throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected Name parseEscapedFieldName(int[] quads, int qlen, int currQuad, int ch, int currQuadBytes) throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected Name _handleUnusualFieldName(int ch) throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected Name _parseApostropheFieldName() throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected void _finishString()
throws IOException,
JsonParseException
_finishString in class ParserBaseIOExceptionJsonParseExceptionprotected void _skipString()
throws IOException,
JsonParseException
IOExceptionJsonParseExceptionprotected JsonToken _handleUnexpectedValue(int c) throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected JsonToken _handleApostropheValue() throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected JsonToken _handleInvalidNumberStart(int ch, boolean neg) throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected void _matchToken(String matchStr, int i) throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected void _reportInvalidToken(String matchedPart) throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected void _reportInvalidToken(String matchedPart, String msg) throws IOException, JsonParseException
IOExceptionJsonParseExceptionprotected char _decodeEscaped()
throws IOException,
JsonParseException
ParserBase_decodeEscaped in class ParserBaseIOExceptionJsonParseExceptionprotected int _decodeCharForError(int firstByte)
throws IOException,
JsonParseException
IOExceptionJsonParseExceptionprotected void _skipCR()
throws IOException
IOExceptionprotected void _skipLF()
throws IOException
IOExceptionprotected void _reportInvalidChar(int c)
throws JsonParseException
JsonParseExceptionprotected void _reportInvalidInitial(int mask)
throws JsonParseException
JsonParseExceptionprotected void _reportInvalidOther(int mask)
throws JsonParseException
JsonParseExceptionprotected void _reportInvalidOther(int mask,
int ptr)
throws JsonParseException
JsonParseExceptionpublic static int[] growArrayBy(int[] arr,
int more)
protected byte[] _decodeBase64(Base64Variant b64variant) throws IOException, JsonParseException
IOExceptionJsonParseExceptionCopyright © 2012-2013 FasterXML. All Rights Reserved.