Read and process large one line JSON file

My initial problem was to read and process large one line JSON file. with traditional approaches it took 3 hours to read and process the JSON file. So I have done research in this area and found a way to read the JSON file chunk by chunk, now I can do the same thing in 5 min

Bellow I have break the JSON which had 200000 elements in to 20 * 10000 chunks

public static void jsonFileReader() throws JsonParseException, IOException{

JsonFactory f = new MappingJsonFactory();

JsonParser jp = f.createJsonParser(new File("MyHugeJSonFile.json"));

JsonToken current;

current = jp.nextToken();

if (current != JsonToken.START_OBJECT) {

System.out.println("Error: root should be object: quiting.");

return;

}

int i = 0;

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

String fieldName = jp.getCurrentName();

current = jp.nextToken();

if (fieldName.equals("employees")) {

if (current == JsonToken.START_ARRAY) {

List<String> strings = new ArrayList<String>();

String previousValue = "";

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

JsonNode node = jp.readValueAsTree();

String valueAsText = node.get("id").getTextValue();

strings.add(valueAsText);

if((strings.size() == 100)) {

String valueAsText1 = null;

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

JsonNode node1 = jp.readValueAsTree();

valueAsText1 = node1.get("id").getTextValue();

if(!previousValue.equals(valueAsText1)) {

break;

} else {

strings.add(valueAsText1);

}

}

int j =0;

for (Iterator<String> iterator  = strings.iterator(); iterator.hasNext();) {

i = i + 1;

j = j + 1;

String string = (String) iterator .next();

System.out.println(i+" -- "+j+" --> "+string);

strings = new ArrayList<String>();

}

System.out.println("-------------------------------------------------------------");

strings.add(valueAsText1);

}

previousValue = valueAsText;

}

int j =0;

for (Iterator<String> iterator  = strings.iterator(); iterator.hasNext();) {

i = i + 1;

j = j + 1;

String string = (String) iterator .next();

System.out.println(i+" -- "+j+" --> "+string);

strings = new ArrayList<String>();

}

System.out.println("-------------------------------------------------------------");

} else {

System.out.println("Error: records should be an array: skipping.");

jp.skipChildren();

}

} else {

System.out.println("Unprocessed property: " + fieldName);

jp.skipChildren();

}

}

System.out.println("Total Record size " + i);

}