Extract MICR from Image - Java

import org.json.JSONArray; 
import org.json.JSONObject; 
 
import java.io.File; 
import java.io.FileNotFoundException; 
import java.net.URI; 
import java.net.http.HttpClient; 
import java.net.http.HttpRequest; 
import java.net.http.HttpRequest.BodyPublisher; 
import java.net.http.HttpResponse; 
import java.nio.charset.StandardCharsets; 
import java.util.Base64; 
import java.util.concurrent.CompletableFuture; 
import java.util.concurrent.ExecutionException; 
import java.util.concurrent.TimeUnit; 
import java.util.concurrent.TimeoutException; 

private static void extractCheck() { 
    HttpClient client = HttpClient.newHttpClient(); 
 
    //The first page in the file to mark for processing 
    int firstPage = 1; 
 
    //Sending a value of -1 will indicate to the service that all pages in the file should be processed. 
    int lastPage = -1; 
 
    // If using URL to the file 
    String fileURL = "http://demo.leadtools.com/images/cloud_samples/micr_sample.jpg"; 
    String conversionUrl = String.format("Recognition/ExtractCheck?firstPage=%s&lastPage=%s&fileurl=%s", firstPage, lastPage, fileURL); 
    Results results = postAsync(conversionUrl, null, client); 
 
    //If uploading a file as multi-part content: 
    // File uploadFile = new File("path/to/file"); 
    // String conversionUrl = String.format("Recognition/ExtractCheck?firstPage=%s&lastPage=%s", firstPage, lastPage); 
    // Results results = postAsync(conversionUrl, uploadFile, client); 
 
    if (results.getStatusCode() == 200) { 
        //Unique ID returned by the services 
        System.out.println("Unique ID returned by the services: " + results.getData()); 
        query(results.getData(), client); 
    } else { 
        System.out.println("Request failed with the following response: " + results.getStatusCode()); 
    } 
} 

private static void query(String id, HttpClient client) { 
    String queryUrl = String.format("Query?id=%s", id); 
    Results results; 
    JSONObject returnedData = new JSONObject(); 
    int fileStatus = 0; 
 
    do { 
        try{ 
            results = postAsync(queryUrl, null, client); 
            returnedData = new JSONObject(results.getData()); 
            fileStatus = returnedData.getInt("FileStatus"); 
            if (fileStatus != 200) Thread.sleep(5000); 
        } catch (InterruptedException e) { 
            //e.printStackTrace(); 
        } 
    } while (fileStatus == 0 || fileStatus == 100 || fileStatus == 123); 
 
    System.out.println("File has finished processing with return code: " + fileStatus); 
    if (fileStatus != 200) { 
        return; 
    } 
 
    parseJson(returnedData.get("RequestData").toString()); 
} 

private static void parseJson(String json) { 
    JSONArray requestArray = new JSONArray(json); 
    for (Object requestObject : requestArray) { 
        if (requestObject instanceof JSONObject) { 
            JSONObject requestReturn = (JSONObject) requestObject; 
            System.out.println("Service Type: " + requestReturn.getString("ServiceType")); 
            System.out.println("Returned Data:"); 
            JSONArray objArray = new JSONArray(requestReturn.get("data").toString()); 
            for (Object object : objArray) { 
                if (object instanceof JSONObject) { 
                    JSONObject subObject = (JSONObject) object; 
                    for (String entry : subObject.keySet()) { 
                        System.out.println(entry + ": " + subObject.get(entry)); 
                    } 
                    System.out.println("-----------------------------------"); 
                } 
            } 
        } 
    } 
} 

private static Results postAsync(String path, Object body, HttpClient client) { 
    String AppId = "Replace with Application ID"; 
    String Password = "Replace with Application Password"; 
    String authHeader = "Basic " + new String(Base64.getEncoder().encode((AppId + ":" + Password).getBytes(StandardCharsets.UTF_8))); 
    String hostedServicesUrl = "https://azure.leadtools.com/api/"; 
 
    BodyPublisher thisBody = HttpRequest.BodyPublishers.ofString("null"); 
    if (body instanceof BodyPublisher) { 
        thisBody = (BodyPublisher) body; 
    } else if (body instanceof File) { 
        try { 
            thisBody = HttpRequest.BodyPublishers.ofFile(((File) body).toPath()); 
        } catch (FileNotFoundException e) { 
            //e.printStackTrace(); 
        } 
    } 
 
    HttpRequest request = HttpRequest.newBuilder() 
        .POST(thisBody) 
        .uri(URI.create(hostedServicesUrl + path)) 
        .header("Accept", "application/json") 
        .header("Authorization", authHeader) 
        .header("Content-Type", "text/plain") 
        .build(); 
 
    CompletableFuture<HttpResponse<String>> result = client.sendAsync(request, HttpResponse.BodyHandlers.ofString()); 
    Results results = new Results(); 
    results.setData(""); 
    results.setStatusCode(0); 
 
    try{ 
        results.setData(result.thenApply(HttpResponse::body).get(5, TimeUnit.SECONDS)); 
        results.setStatusCode(result.thenApply(HttpResponse::statusCode).get(5, TimeUnit.SECONDS)); 
    } catch (InterruptedException | ExecutionException | TimeoutException e) { 
        e.printStackTrace(); 
    } 
 
    return results; 
} 

private static class Results { 
    private String data; 
    private int statusCode; 
 
    public String getData() { 
        return data; 
    } 
 
    public void setData(String data) { 
        this.data = data; 
    } 
 
    public int getStatusCode() { 
        return statusCode; 
    } 
 
    public void setStatusCode(int statusCode) { 
        this.statusCode = statusCode; 
    } 
}