com.github.wnameless.json.flattener

Class JsonFlattener

java.lang.Object

com.github.wnameless.json.flattener.JsonFlattener

public final class JsonFlattener
extends Object

JsonFlattener flattens any JSON nested objects or arrays into a flattened JSON string or a Map<Stirng, Object>. The String key will represents the corresponding position of value in the original nested objects or arrays and the Object value are either String, Boolean, Long, Double or null.

For example:
A nested JSON
{ "a" : { "b" : 1, "c": null, "d": [false, true] }, "e": "f", "g":2.3 }

can be turned into a flattened JSON
{ "a.b": 1, "a.c": null, "a.d[0]": false, "a.d[1]": true, "e": "f", "g":2.3 }

or into a Map
{
a.b=1,
a.c=null,
a.d[0]=false,
a.d[1]=true,
e=f,
g=2.3
}

Author:

Wei-Ming Wu

Constructor Summary

Constructors

Constructor and Description
JsonFlattener(String json) Creates a JSON flattener.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
String	flatten() Returns a flattened JSON string.
static String	flatten(String json) Returns a flattened JSON string.
Map<String,Object>	flattenAsMap() Returns a flattened JSON as Map.
static Map<String,Object>	flattenAsMap(String json) Returns a flattened JSON as Map.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

JsonFlattener

public JsonFlattener(String json)

Creates a JSON flattener.

Parameters:

json - the JSON string

Method Detail

flatten

public static String flatten(String json)

Returns a flattened JSON string.

Parameters:

json - the JSON string

Returns:

a flattened JSON string.

flattenAsMap

public static Map<String,Object> flattenAsMap(String json)

Returns a flattened JSON as Map.

Parameters:

json - the JSON string

Returns:

a flattened JSON as Map

flatten

public String flatten()

Returns a flattened JSON string.

Returns:

a flattened JSON string

flattenAsMap

public Map<String,Object> flattenAsMap()

Returns a flattened JSON as Map.

Returns:

a flattened JSON as Map

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object