Extract Borderless Table to CSV using Template ID Asynchronously - Java
Document Parser sample in Java demonstrating ‘Extract Borderless Table to CSV using Template ID Asynchronously’
Main.java
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.JsonPrimitive;
import okhttp3.*;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
public class Main {
// Get your own API Key by registering at https://app.pdf.co
final static String API_KEY = "****************************************";
public static void main(String[] args) throws IOException, InterruptedException {
// Source PDF file
final String SourceFileUrl = "https://pdfco-test-files.s3.us-west-2.amazonaws.com/document-parser/sample-invoice.pdf";
// PDF document password. Leave empty for unprotected documents.
final String Password = "";
// Destination CSV file name
final Path DestinationFile = Paths.get(".\\result2.csv");
final String outputFormat = "CSV";
// Template text. Use Document Parser to create templates.
final String templateId = "1";
// Create HTTP client instance
OkHttpClient webClient = new OkHttpClient();
// Initiate async document parsing
initiateAsyncDocumentParsing(webClient, API_KEY, DestinationFile, Password, SourceFileUrl, outputFormat, templateId);
}
public static void initiateAsyncDocumentParsing(OkHttpClient webClient, String apiKey, Path destinationFile,
String password, String uploadedFileUrl, String outputFormat, String templateId) throws IOException, InterruptedException {
// Prepare POST request body in JSON format
JsonObject jsonBody = new JsonObject();
jsonBody.add("url", new JsonPrimitive(uploadedFileUrl));
jsonBody.add("outputFormat", new JsonPrimitive(outputFormat));
jsonBody.add("templateId", new JsonPrimitive(templateId));
jsonBody.add("async", new JsonPrimitive(true)); // Enable async mode
RequestBody body = RequestBody.create(MediaType.parse("application/json"), jsonBody.toString());
// Prepare request to `Document Parser` API
Request request = new Request.Builder()
.url("https://api.pdf.co/v1/pdf/documentparser")
.addHeader("x-api-key", apiKey) // (!) Set API Key
.addHeader("Content-Type", "application/json")
.post(body)
.build();
// Execute request
Response response = webClient.newCall(request).execute();
if (response.code() == 200) {
// Parse JSON response
JsonObject json = JsonParser.parseString(response.body().string()).getAsJsonObject();
boolean error = json.get("error").getAsBoolean();
if (!error) {
// Asynchronous job ID
String jobId = json.get("jobId").getAsString();
System.out.println("Job#" + jobId + ": has been created.");
// Poll job status
pollJobStatus(webClient, apiKey, jobId, destinationFile);
} else {
// Display service reported error
System.out.println(json.get("message").getAsString());
}
} else {
// Display request error
System.out.println(response.code() + " " + response.message());
}
}
private static void pollJobStatus(OkHttpClient webClient, String apiKey, String jobId, Path destinationFile) throws IOException, InterruptedException {
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("MM/dd/yyyy HH:mm:ss");
String jobStatusUrl = "https://api.pdf.co/v1/job/check?jobid=" + jobId;
while (true) {
// Prepare request to check job status
Request request = new Request.Builder()
.url(jobStatusUrl)
.addHeader("x-api-key", apiKey) // (!) Set API Key
.build();
// Execute request
Response response = webClient.newCall(request).execute();
if (response.code() == 200) {
// Parse JSON response
JsonObject json = JsonParser.parseString(response.body().string()).getAsJsonObject();
String status = json.get("status").getAsString();
System.out.println("Job#" + jobId + ": " + status + " - " + dtf.format(LocalDateTime.now()));
if (status.equalsIgnoreCase("success")) {
// Get result file URL
String resultFileUrl = json.get("url").getAsString();
downloadFile(webClient, resultFileUrl, destinationFile.toFile());
System.out.printf("Generated file saved to \"%s\" file.%n", destinationFile.toString());
break;
} else if (status.equalsIgnoreCase("failed") || status.equalsIgnoreCase("aborted")) {
System.out.println("Job failed with status: " + status);
break;
}
// Wait for a few seconds before checking again
Thread.sleep(3000);
} else {
// Display request error
System.out.println(response.code() + " " + response.message());
break;
}
}
}
public static void downloadFile(OkHttpClient webClient, String url, File destinationFile) throws IOException {
// Prepare request
Request request = new Request.Builder()
.url(url)
.build();
// Execute request
Response response = webClient.newCall(request).execute();
byte[] fileBytes = response.body().bytes();
// Save downloaded bytes to file
OutputStream output = new FileOutputStream(destinationFile);
output.write(fileBytes);
output.flush();
output.close();
response.close();
}
}
App.java
package $org.example;
/**
* Hello world!
*
*/
public class App
{
public static void main( String[] args )
{
System.out.println( "Hello World!" );
}
}
AppTest.java
package $org.example;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
/**
* Unit test for simple App.
*/
public class AppTest
extends TestCase
{
/**
* Create the test case
*
* @param testName name of the test case
*/
public AppTest( String testName )
{
super( testName );
}
/**
* @return the suite of tests being tested
*/
public static Test suite()
{
return new TestSuite( AppTest.class );
}
/**
* Rigourous Test :-)
*/
public void testApp()
{
assertTrue( true );
}
}
PDF.co Web API: the Web API with a set of tools for documents manipulation, data conversion, data extraction, splitting and merging of documents. Includes image recognition, built-in OCR, barcode generation and barcode decoders to decode bar codes from scans, pictures and pdf.
Download Source Code (.zip)
return to the previous page explore Document Parser endpoint
Copyright © 2016 - 2024 PDF.co