org.qbroker.json

Class JSON2FmModel

java.lang.Object

org.qbroker.json.JSON2FmModel

public class JSON2FmModel
extends java.lang.Object

JSON2FmModel parses a JSON text stream and creates a FreeMarker compatible data model in a Map or a List. It only recognizes the basic Java objects of String, Number, Boolen, List and Map. A Map or a List can contain objects of those types. They are the nodes of the data tree. A String, Number or Boolean is only a leaf in the data tree. For JSON's null, it will be represented by Java null. The comments in Javascript style will be ignored. With these basic types of objects, any data structures will be representable. The mapping is one-to-one. Therefore, the mapping is bi-directional.

The method of parse() assumes the JSON data is either a Map or a List. It returns either a Map or a List representing the JSON data.

Author:

yannanlu@yahoo.com

Field Summary

Fields

Modifier and Type	Field and Description
static int	bufferSize
static int	JSON_ARRAY
static int	JSON_BOOLEAN
static int	JSON_MAP
static int	JSON_NULL
static int	JSON_NUMBER
static int	JSON_STRING
static int	JSON_UNKNOWN

Method Summary

Modifier and Type	Method and Description
static boolean	containsKey(java.util.List pl, java.lang.String keyPath) returns true if the keyPath exists or false otherwise
static boolean	containsKey(java.util.Map ph, java.lang.String keyPath) returns true if the keyPath exists or false otherwise
static int	count(java.util.List pl, java.lang.String keyPath) returns the number of children referenced by the keyPath or -1
static int	count(java.util.Map ph, java.lang.String keyPath) returns the number of children referenced by the keyPath or -1
static java.lang.String	format(java.util.List pl, Template temp) returns the formatted string for the given template or null on faluire
static java.lang.String	format(java.util.Map ph, Template temp) returns the formatted string for the given template or null on faluire
static java.lang.Object	get(java.util.List pl, java.lang.String keyPath) returns the object referenced by the keyPath or null
static java.lang.Object	get(java.util.Map ph, java.lang.String keyPath) returns the object referenced by the keyPath or null
static int	getDataType(java.util.List pl, java.lang.String keyPath)
static int	getDataType(java.util.Map ph, java.lang.String keyPath)
static java.lang.Object	getParent(java.util.List pl, java.lang.String keyPath) returns the parent of the object referenced by the keyPath or null
static java.lang.Object	getParent(java.util.Map ph, java.lang.String keyPath) returns the parent of the object referenced by the keyPath or null
static void	main(java.lang.String[] args)
static java.lang.Object	parse(java.io.Reader in) parses JSON stream from in and returns either Map or List, MT-safe
static java.lang.Object	put(java.util.List pl, java.lang.String keyPath, java.lang.Object data) puts the data and returns the replaced object referenced by the keyPath
static java.lang.Object	put(java.util.Map ph, java.lang.String keyPath, java.lang.Object data) puts the data and returns the replaced object referenced by the keyPath
static java.lang.Object	remove(java.util.List pl, java.lang.String keyPath) returns the removed object referenced by the keyPath or null
static java.lang.Object	remove(java.util.Map ph, java.lang.String keyPath) returns the removed object referenced by the keyPath or null
static java.lang.String	toJSON(java.util.List a, java.lang.String indent, java.lang.String end) It returns JSON content for a given List with indent
static java.lang.String	toJSON(java.util.Map m) It returns JSON content in tabular format for a given Map
static java.lang.String	toJSON(java.util.Map m, java.lang.String indent, java.lang.String end) It returns JSON content for a given Map with indent
static java.lang.String	toXML(java.util.Map m) It returns XML content in the tabular format for a given Map
static java.lang.String	toXML(java.util.Map m, java.lang.String indent, java.lang.String end) It returns XML content for a given Map with indent
static java.lang.String	toXML(java.lang.String key, java.util.List a, java.lang.String indent, java.lang.String end) It returns XML content for a given List with indent

Methods inherited from class java.lang.Object

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

Field Detail

bufferSize

public static final int bufferSize

See Also:

Constant Field Values

JSON_UNKNOWN

public static final int JSON_UNKNOWN

See Also:

Constant Field Values

JSON_NULL

public static final int JSON_NULL

See Also:

Constant Field Values

JSON_STRING

public static final int JSON_STRING

See Also:

Constant Field Values

JSON_NUMBER

public static final int JSON_NUMBER

See Also:

Constant Field Values

JSON_BOOLEAN

public static final int JSON_BOOLEAN

See Also:

Constant Field Values

JSON_ARRAY

public static final int JSON_ARRAY

See Also:

Constant Field Values

JSON_MAP

public static final int JSON_MAP

See Also:

Constant Field Values

Method Detail

toJSON

public static java.lang.String toJSON(java.util.Map m)

It returns JSON content in tabular format for a given Map

toJSON

public static java.lang.String toJSON(java.util.Map m,
                                      java.lang.String indent,
                                      java.lang.String end)

It returns JSON content for a given Map with indent

toJSON

public static java.lang.String toJSON(java.util.List a,
                                      java.lang.String indent,
                                      java.lang.String end)

It returns JSON content for a given List with indent

toXML

public static java.lang.String toXML(java.util.Map m)

It returns XML content in the tabular format for a given Map

toXML

public static java.lang.String toXML(java.util.Map m,
                                     java.lang.String indent,
                                     java.lang.String end)

It returns XML content for a given Map with indent

toXML

public static java.lang.String toXML(java.lang.String key,
                                     java.util.List a,
                                     java.lang.String indent,
                                     java.lang.String end)

It returns XML content for a given List with indent

containsKey

public static boolean containsKey(java.util.Map ph,
                                  java.lang.String keyPath)

returns true if the keyPath exists or false otherwise

containsKey

public static boolean containsKey(java.util.List pl,
                                  java.lang.String keyPath)

returns true if the keyPath exists or false otherwise

count

public static int count(java.util.Map ph,
                        java.lang.String keyPath)

returns the number of children referenced by the keyPath or -1

count

public static int count(java.util.List pl,
                        java.lang.String keyPath)

returns the number of children referenced by the keyPath or -1

remove

public static java.lang.Object remove(java.util.Map ph,
                                      java.lang.String keyPath)

returns the removed object referenced by the keyPath or null

remove

public static java.lang.Object remove(java.util.List pl,
                                      java.lang.String keyPath)

returns the removed object referenced by the keyPath or null

getParent

public static java.lang.Object getParent(java.util.Map ph,
                                         java.lang.String keyPath)

returns the parent of the object referenced by the keyPath or null

getParent

public static java.lang.Object getParent(java.util.List pl,
                                         java.lang.String keyPath)

returns the parent of the object referenced by the keyPath or null

get

public static java.lang.Object get(java.util.Map ph,
                                   java.lang.String keyPath)

returns the object referenced by the keyPath or null

get

public static java.lang.Object get(java.util.List pl,
                                   java.lang.String keyPath)

returns the object referenced by the keyPath or null

getDataType

public static int getDataType(java.util.Map ph,
                              java.lang.String keyPath)

getDataType

public static int getDataType(java.util.List pl,
                              java.lang.String keyPath)

put

public static java.lang.Object put(java.util.Map ph,
                                   java.lang.String keyPath,
                                   java.lang.Object data)

puts the data and returns the replaced object referenced by the keyPath

put

public static java.lang.Object put(java.util.List pl,
                                   java.lang.String keyPath,
                                   java.lang.Object data)

puts the data and returns the replaced object referenced by the keyPath

format

public static java.lang.String format(java.util.Map ph,
                                      Template temp)

returns the formatted string for the given template or null on faluire

format

public static java.lang.String format(java.util.List pl,
                                      Template temp)

returns the formatted string for the given template or null on faluire

parse

public static java.lang.Object parse(java.io.Reader in)
                              throws java.io.IOException

parses JSON stream from in and returns either Map or List, MT-safe

Throws:

java.io.IOException

main

public static void main(java.lang.String[] args)