to.etc.webapp.ajax.renderer

Class JSONParser

java.lang.Object

to.etc.lexer.TextReaderBase

to.etc.lexer.ReaderScannerBase

to.etc.lexer.ReaderTokenizerBase

to.etc.webapp.ajax.renderer.JSONParser

public class JSONParser
extends ReaderTokenizerBase

This class parses JSON streams and creates a generic Java structure consisting of arrays and map's representing the JSON data.

Author:

Frits Jalvingh Created on Oct 19, 2006

Field Summary

Fields inherited from class to.etc.lexer.ReaderScannerBase

T_BASE_LAST, T_COMMENT, T_EOF, T_IDENT, T_IPADDR, T_NUMBER, T_STRING

Constructor Summary

Constructors

Constructor and Description
JSONParser(Reader r)

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args)
Object	parse()
Object	parseItem() Parse the JSON input and return a JSON data structure.
static Object	parseJSON(Reader in) Parse the input stream as a JSON structure.
static Object	parseJSON(Reader r, Class<?> totype) Parse the input stream as a JSON object, and try to assign it's content to the specified class.
static Object	parseJSON(String in) Parse the string as a JSON structure.
static Object	parseJSON(String in, Class<?> totype) Parse the input, and try to assign the JSON input to a created instance of the specified class.
protected int	scanString() Override to scan Javascript string constants.

Methods inherited from class to.etc.lexer.ReaderTokenizerBase

getLastToken, getTokenString, isKeepQuotes, nextToken, scanToken, setKeepQuotes, setReturnComment, setReturnNewline, setReturnWhitespace, setScanUndottedNumbers

Methods inherited from class to.etc.lexer.ReaderScannerBase

error, getSourceLocation, getTokenColumn, getTokenLine, isAllowNewlineInString, isIdChar, isIdStart, scanIdentifier, scanNumber, scanSimpleString, scanUndottedNumber, setAllowNewlineInString, skipWs, skipWsNoNL, startToken, tokenString

Methods inherited from class to.etc.lexer.TextReaderBase

accept, accept, append, append, clearCopy, copy, copy, getCopied, getCurrentColumn, getCurrentLine, getSource, LA, LA, sb

Methods inherited from class java.lang.Object

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

Constructor Detail

JSONParser

public JSONParser(Reader r)

Method Detail

parse

public Object parse()
             throws Exception

Throws:

Exception

scanString

protected int scanString()
                  throws IOException

Override to scan Javascript string constants.

Overrides:

scanString in class ReaderTokenizerBase

Throws:

IOException

See Also:

ReaderTokenizerBase.scanString()

parseItem

public Object parseItem()
                 throws Exception

Parse the JSON input and return a JSON data structure.

Returns:

Throws:

Exception

parseJSON

public static Object parseJSON(String in,
                               Class<?> totype)
                        throws Exception

Parse the input, and try to assign the JSON input to a created instance of the specified class.

Throws:

Exception

parseJSON

public static Object parseJSON(Reader r,
                               Class<?> totype)
                        throws Exception

Parse the input stream as a JSON object, and try to assign it's content to the specified class.

Parameters:

r -

totype -

Returns:

Throws:

Exception

parseJSON

public static Object parseJSON(String in)
                        throws Exception

Parse the string as a JSON structure. This returns a generic Java structure representing the JSON request, where all arrays are returned as List<Object>, all Javascript objects as a Map<Object, Object> and all primitives are translated to a reasonable Java type.

Throws:

Exception

parseJSON

public static Object parseJSON(Reader in)
                        throws Exception

Parse the input stream as a JSON structure. This returns a generic Java structure representing the JSON request, where all arrays are returned as List<Object>, all Javascript objects as a Map<Object, Object> and all primitives are translated to a reasonable Java type.

Throws:

Exception

main

public static void main(String[] args)