Graphical representation of XPOST request elastic search through java(maven)

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Java

Maven

Elasticsearch

I want to make a post request in java.Maven with http post to an Elasticsearch server. This is my code:

package com.server.java.Webping;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class ReadAndWrite extends Server {
    public static void main(String[] args) throws IOException {
    try {
        URL url = new URL("http://192.168.1.126:9200/shakespeare/_bulk?pretty' --data-binary @shakespeare.json");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setDoOutput(true);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/json");
        File file = new File("shakespeare.json");
        FileReader reader = new FileReader(file);
        @SuppressWarnings("resource")
        BufferedReader br  = new BufferedReader(reader);
        String input = null;
        StringBuilder builder = new StringBuilder();
        while(br.readLine( ) != null) 
        {
            String txt = br.readLine( );                                     
            builder.append(txt);
        }                                
        input = builder.toString();

        OutputStream os = (OutputStream) conn.getOutputStream();
        os.write(input.getBytes());
        os.flush();

        if (conn.getResponseCode() != HttpURLConnection.HTTP_CREATED) {
            throw new RuntimeException("Failed : HTTP error code : "
                + conn.getResponseCode());
        }

        BufferedReader br1 = new BufferedReader(new InputStreamReader(
                (conn.getInputStream())));

        String output;
        System.out.println("Output from Server .... \n");
        while ((output = br1.readLine()) != null) {
            System.out.println(output);
        }

        conn.disconnect();

    } catch (MalformedURLException e) {

        e.printStackTrace();

    } catch (IOException e) {

        e.printStackTrace();

    }
}
However, now I want to make a graph representation of my data being inserted by the above code. Can anyone help me out on how should I code further for getting it graphed?

What I have tried:

package com.server.java.Webping;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class ReadAndWrite extends Server {
public static void main(String[] args) throws IOException {
try {
URL url = new URL("http://192.168.1.126:9200/shakespeare/_bulk?pretty' --data-binary @shakespeare.json");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/json");
File file = new File("shakespeare.json");
FileReader reader = new FileReader(file);
@SuppressWarnings("resource")
BufferedReader br = new BufferedReader(reader);
String input = null;
StringBuilder builder = new StringBuilder();
while(br.readLine( ) != null)
{
String txt = br.readLine( );
builder.append(txt);
}
input = builder.toString();

OutputStream os = (OutputStream) conn.getOutputStream();
os.write(input.getBytes());
os.flush();

if (conn.getResponseCode() != HttpURLConnection.HTTP_CREATED) {
throw new RuntimeException("Failed : HTTP error code : "
+ conn.getResponseCode());
}

BufferedReader br1 = new BufferedReader(new InputStreamReader(
(conn.getInputStream())));

String output;
System.out.println("Output from Server .... \n");
while ((output = br1.readLine()) != null) {
System.out.println(output);
}

conn.disconnect();

} catch (MalformedURLException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}
}