io.keikai.json

Class JSONValue

java.lang.Object

io.keikai.json.JSONValue

public class JSONValue
extends Object

Utilities to encode and decode data in JSON format. To decode, use parse(String). To encode, use toJSONString(java.lang.Object).

Author:

FangYidong

Constructor Summary

Constructors

Constructor and Description
JSONValue()

Method Summary

Modifier and Type	Method and Description
static String	escape(String s) Escape quotes, \, /, \r, \n, \b, \f, \t and other control characters (U+0000 through U+001F).
static void	escape(String s, StringBuilder sb)
static Object	parse(Reader in) Parse (a.k.a., decode) JSON text into java object from the input source.
static Object	parse(String s) Parse (a.k.a., decode) JSON text into java object from the string.
static String	toJSONString(boolean value) Converts a boolean to JSON text
static String	toJSONString(byte value) Converts a byte to JSON text
static String	toJSONString(char value) Converts a char to JSON text
static String	toJSONString(double value) Converts a double to JSON text
static String	toJSONString(float value) Converts a float to JSON text
static String	toJSONString(int value) Converts an integer to JSON text
static String	toJSONString(long value) Converts a long to JSON text
static String	toJSONString(Object value) Convert (a.k.a., encode) an object to JSON text.
static String	toJSONString(short value) Converts a short to JSON text
static String	toJSONString(String key, Object value, StringBuilder sb)

Methods inherited from class java.lang.Object

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

Constructor Detail

JSONValue

public JSONValue()

Method Detail

parse

public static Object parse(Reader in)
                    throws IOException

Parse (a.k.a., decode) JSON text into java object from the input source.

Parameters:

in - the input to parse.

Returns:

Instance of the following: JSONObject (also java.util.Map), JSONArray (also java.util.List), java.lang.String, java.lang.Number, java.lang.Boolean, null. If in is null, null is returned.

Throws:

IOException

parse

public static Object parse(String s)

Parse (a.k.a., decode) JSON text into java object from the string.

Returns:

the decoded object. If s is null, null is returned.

toJSONString

public static String toJSONString(Object value)

Convert (a.k.a., encode) an object to JSON text.

If this object is a Map or a List, and it's also a JSONAware, JSONAware will be considered firstly.

DO NOT call this method from toJSONString() of a class that implements both JSONAware and Map or List with "this" as the parameter, use JSONObject.toJSONString(Map) or JSONArray.toJSONString(List) instead.

Parameters:

value -

Returns:

JSON text, or "null" if value is null or it's an NaN or an INF number.

toJSONString

public static String toJSONString(int value)

Converts an integer to JSON text

patched by tomyeh

toJSONString

public static String toJSONString(long value)

Converts a long to JSON text

patched by tomyeh

toJSONString

public static String toJSONString(short value)

Converts a short to JSON text

patched by tomyeh

toJSONString

public static String toJSONString(double value)

Converts a double to JSON text

patched by tomyeh

toJSONString

public static String toJSONString(float value)

Converts a float to JSON text

patched by tomyeh

toJSONString

public static String toJSONString(byte value)

Converts a byte to JSON text

patched by tomyeh

toJSONString

public static String toJSONString(boolean value)

Converts a boolean to JSON text

patched by tomyeh

toJSONString

public static String toJSONString(char value)

Converts a char to JSON text

patched by tomyeh

escape

public static String escape(String s)

Escape quotes, \, /, \r, \n, \b, \f, \t and other control characters (U+0000 through U+001F).

Parameters:

s -

Returns:

the resulting string

toJSONString

public static String toJSONString(String key,
                                  Object value,
                                  StringBuilder sb)

escape

public static void escape(String s,
                          StringBuilder sb)

Parameters:

s - - Must not be null.

sb -