JSONObject

JSONObject.cls

/**
 * @ApexClass 	: JSONObject
*  @Author 		  :    Kiran Machhewar
 * @Description : This class can be used to parse and work with json data in apex easy.
 */
public class JSONObject {

	public String jsonString; //to hold the json string
	private Object jsonObject; //to hold the deserialized json data

	public JSONObject(String jsonString) {
		this.jsonString = jsonString;
		this.jsonObject = JSON.deserializeUntyped(jsonString);
	}

	private JSONObject(Object jsonObject){
		this.jsonObject = jsonObject;
	}

	private JSONObject(){
		this.jsonObject = null;
	}

	/**
	 * This method will give the JSONObject on which other methods could be called
	 */
	public JSONObject get(String field){
		if(jsonObject != null){
			Map<String,Object> jsonObjectMap = (Map<String,Object>)jsonObject;
			return new JSONObject(jsonObjectMap.get(field));
		}else{
			return new JSONObject();
		}
	
	}

	/**
	 * This method will give the JSONObject on which other methods could be called
	 */
	public List<JSONObject> getArray(String field){
		List<JSONObject> jsonObjects = new List<JSONObject>();
		List<Object> objects = (List<Object>)((Map<String,Object>)jsonObject).get(field);
		for(Object theObject : objects){
			jsonObjects.add(new JSONObject(theObject));
		}
		return jsonObjects;
	}

	public List<JSONObject> getArray(){
		List<JSONObject> jsonObjects = new List<JSONObject>();
		List<Object> objects = (List<Object>)jsonObject;
		for(Object theObject : objects){
			jsonObjects.add(new JSONObject(theObject));
		}
		return jsonObjects;
	}


	public override String toString(){
		return (jsonObject == null)? null : (''+jsonObject);
	}

	public Object value(){
		return jsonObject;
	}

}