JSONObjectRecost.java

package com.onepoint;

import com.eclipsesource.json.JsonObject;
import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.JsonMappingException;

import java.io.File;
import java.io.IOException;

public class JSONObjectRecost {

	public static void main(String[] args) {
		int count = 0;
		try (JsonParser jParser = new JsonFactory().createParser(new File("FilePath"));) {

			if (jParser.nextToken() == JsonToken.START_ARRAY) {

				while (jParser.nextToken() != JsonToken.END_ARRAY) {

					StringBuilder s = new StringBuilder("{");

		
					while (jParser.nextToken() != JsonToken.END_OBJECT) {

						String fieldname = jParser.getCurrentName();

						s = s.append("\"" + fieldname + "\"" + ":");

						JsonToken jt = jParser.nextToken();

						if (jt == JsonToken.START_ARRAY) {
							
							s = s.append("[");
							
							

							
							while (jt != JsonToken.END_ARRAY) {

								 jt = jParser.nextToken();
								 
								 if(jt== JsonToken.START_OBJECT)
								 {
									 
			 						 s = s.append(recursionObject(jParser));
									
								 }
								 else if(jt!=JsonToken.END_ARRAY)
								 {
								s = s.append("\"" + jParser.getText() + "\",");
								 }
								

							}
							
							
							
							s = new StringBuilder(s.substring(0, s.length() - 1));
							s = s.append("],");
							
						}

						else if (jt == JsonToken.START_OBJECT)

						{
							s = s.append(recursionObject(jParser));

						}

						else

						{

							s = s.append("\"" + jParser.getValueAsString() + "\",");
						}

					}
					if (s.charAt(s.length() - 1) == ',') {
						s = new StringBuilder(s.substring(0, s.length() - 1));
					}
					s = s.append("}\n");

					System.out.println(JsonObject.readFrom(s.toString()).toString());

					count++;
					s = null;
					

				}

			}

		} catch (JsonGenerationException e) {
			e.printStackTrace();
		} catch (JsonMappingException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

	public static String recursionObject(JsonParser jParser) throws IOException {

 		StringBuilder s = new StringBuilder("{");

    		while (jParser.nextToken() != JsonToken.END_OBJECT) {

			String fieldname = jParser.getCurrentName();

			s = s.append("\"" + fieldname + "\"" + ":");

			JsonToken jt = jParser.nextToken();

			if (jt == JsonToken.START_ARRAY) {
				
				s = s.append("[");
				
				

				
				while (jt != JsonToken.END_ARRAY) {

					 jt = jParser.nextToken();
					 
					 if(jt== JsonToken.START_OBJECT)
					 {
						 
 						 s = s.append(recursionObject(jParser));
						
					 }
					 else if(jt!=JsonToken.END_ARRAY)
					 {
					s = s.append("\"" + jParser.getText() + "\",");
					 }
					

				}
				
				
				
				s = new StringBuilder(s.substring(0, s.length() - 1));
				s = s.append("],");
				
			}

			else if (jt == JsonToken.START_OBJECT)

			{
				s = s.append(recursionObject(jParser));

			}

			else

			{

				s = s.append("\"" + jParser.getValueAsString() + "\",");
			}
		}
		if (s.charAt(s.length() - 1) == ',') {
			s = new StringBuilder(s.substring(0, s.length() - 1));
		}
		s = s.append("},");
		return s.toString();

	}

}

test.json

[{
		"docId": "5",
		"docType": "txt",
		"docLang": ["en", "hin"],
		"ABCD": [{
				"city": "Mumbai"
			}, "array2"],
		"docAuthor": "Karan Oshan",
		"docTitle": {
			"Name": "Karan Oshan",
			"age": [25, 35],
			"address": [{
					"city": "Mumbai"
				}, {
					"State": "Maharashtra"
				}
			],
			"sex": {
				"gender": "male"
			}
		},
		"isParent": true,
		"parentDocId": 1

	},
	{
		"docId": "1",
		"docType": "txt",
		"docAuthor": "Miguel",
		"docTitle": "OnePoint",
		"isParent": false,
		"parentDocId": 0

	}
]