Syntax error How to merge two JSON strings in an order using JsonParserSequence in Java?

How to merge two JSON strings in an order using JsonParserSequence in Java?

The JsonParserSequence is a helper class that can be used to create a parser containing two sub-parsers placed in a particular sequence. We can create a sequence using the static method createFlattened() of the JsonParserSequence class.

Syntax

public static JsonParserSequence createFlattened(JsonParser first, JsonParser second)

Example

import java.io.*;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.core.util.*;
public class JsonParserSequenceTest {
   public static void main(String[] args) throws JsonParseException, IOException {
      String jsonString1 = "{\"id\":\"101\", \"name\":\"Ravi Chandra\", \"address\":\"Pune\"}";
      String jsonString2 = "{\"id\":\"102\", \"name\":\"Raja Ramesh\", \"address\":\"Hyderabad\", \"contacts\":[{\"mobile\":\"9959984805\", \"home\":\"7702144400\"}]}";
      JsonFactory jsonFactory = new JsonFactory();
      JsonParser jsonParser1 = jsonFactory.createParser(jsonString1);
      JsonParser jsonParser2 = jsonFactory.createParser(jsonString2);
      JsonParserSequence jsonParserSequence = JsonParserSequence.createFlattened(jsonParser1, jsonParser2);
      JsonToken jsonToken = jsonParserSequence.nextToken();
         while(jsonToken != null) {
            switch(jsonToken) {
               case FIELD_NAME: System.out.println("Key field: " + jsonParserSequence.getText());
               break;
               case VALUE_FALSE:
               case VALUE_NULL:
               case VALUE_NUMBER_FLOAT:
               case VALUE_NUMBER_INT:
               case VALUE_STRING:
               case VALUE_TRUE: System.out.println("Key value: " + jsonParserSequence.getText());
               break;
            }
            jsonToken = jsonParserSequence.nextToken();
         }
      jsonParserSequence.close();
   }
}

Output

Key field: id
Key value: 101
Key field: name
Key value: Ravi Chandra
Key field: address
Key value: Pune
Key field: id
Key value: 102
Key field: name
Key value: Raja Ramesh
Key field: address
Key value: Hyderabad
Key field: contacts
Key field: mobile
Key value: 9959984805
Key field: home
Key value: 7702144400
Updated on: 2020-07-07T13:06:13+05:30

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