org.sindice.siren.analysis

Class JsonTokenizerImpl

java.lang.Object

org.sindice.siren.analysis.JsonTokenizerImpl

public class JsonTokenizerImpl
extends Object

Json document scanner

Field Summary

Fields

Modifier and Type	Field and Description
static int	sARRAY
static int	sDATATYPE_LABEL
static int	sDATATYPE_STRING_VALUE
static int	sOBJECT
static int	sSTRING
static int	YYEOF This character denotes the end of file
static int	YYINITIAL lexical states

Constructor Summary

Constructors

Constructor and Description
JsonTokenizerImpl(InputStream in) Creates a new scanner.
JsonTokenizerImpl(Reader in) Creates a new scanner There is also a java.io.InputStream version of this constructor.

Method Summary

Methods

Modifier and Type	Method and Description
char[]	getDatatypeURI() Return the datatype URI.
void	getLiteralText(org.apache.lucene.analysis.tokenattributes.CharTermAttribute t) Fills Lucene TermAttribute with the current string buffer.
int	getNextToken() Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.
org.apache.lucene.util.IntsRef	getNodePath() Returns the node path of the token
void	yybegin(int newState) Enters a new lexical state
int	yychar()
char	yycharat(int pos) Returns the character at position pos from the matched text.
void	yyclose() Closes the input stream.
int	yylength() Returns the length of the matched text region.
void	yypushback(int number) Pushes the specified amount of characters back into the input stream.
void	yyreset(Reader reader) Resets the scanner to read from a new input stream.
int	yystate() Returns the current lexical state.
String	yytext() Returns the text matched by the current regular expression.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

YYEOF

public static final int YYEOF

This character denotes the end of file

See Also:

Constant Field Values

YYINITIAL

public static final int YYINITIAL

lexical states

See Also:

Constant Field Values

sDATATYPE_STRING_VALUE

public static final int sDATATYPE_STRING_VALUE

See Also:

Constant Field Values

sARRAY

public static final int sARRAY

See Also:

Constant Field Values

sOBJECT

public static final int sOBJECT

See Also:

Constant Field Values

sSTRING

public static final int sSTRING

See Also:

Constant Field Values

sDATATYPE_LABEL

public static final int sDATATYPE_LABEL

See Also:

Constant Field Values

Constructor Detail

JsonTokenizerImpl

public JsonTokenizerImpl(Reader in)

Creates a new scanner There is also a java.io.InputStream version of this constructor.

Parameters:

in - the java.io.Reader to read input from.

JsonTokenizerImpl

public JsonTokenizerImpl(InputStream in)

Creates a new scanner. There is also java.io.Reader version of this constructor.

Parameters:

in - the java.io.Inputstream to read input from.

Method Detail

getDatatypeURI

public final char[] getDatatypeURI()

Return the datatype URI.

yychar

public final int yychar()

getLiteralText

public final void getLiteralText(org.apache.lucene.analysis.tokenattributes.CharTermAttribute t)

Fills Lucene TermAttribute with the current string buffer.

getNodePath

public final org.apache.lucene.util.IntsRef getNodePath()

Returns the node path of the token

yyclose

public final void yyclose()
                   throws IOException

Closes the input stream.

Throws:

IOException

yyreset

public final void yyreset(Reader reader)

Resets the scanner to read from a new input stream. Does not close the old reader. All internal variables are reset, the old input stream cannot be reused (internal buffer is discarded and lost). Lexical state is set to ZZ_INITIAL.

Parameters:

reader - the new input stream

yystate

public final int yystate()

Returns the current lexical state.

yybegin

public final void yybegin(int newState)

Enters a new lexical state

Parameters:

newState - the new lexical state

yytext

public final String yytext()

Returns the text matched by the current regular expression.

yycharat

public final char yycharat(int pos)

Returns the character at position pos from the matched text. It is equivalent to yytext().charAt(pos), but faster

Parameters:

pos - the position of the character to fetch. A value from 0 to yylength()-1.

Returns:

the character at position pos

yylength

public final int yylength()

Returns the length of the matched text region.

yypushback

public void yypushback(int number)

Pushes the specified amount of characters back into the input stream. They will be read again by then next call of the scanning method

Parameters:

number - the number of characters to be read again. This number must not be greater than yylength()!

getNextToken

public int getNextToken()
                 throws IOException,
                        IllegalStateException

Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.

Returns:

the next token

Throws:

IOException - if any I/O-Error occurs

IllegalStateException