Rapaport TechNet
 
RapLink Web Request - JAVA

package com.rapaport.technet.webservices;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.zip.GZIPInputStream;

public final class WebRequestCodeSample {
public static void main(String[] args) throws Exception {
final WebRequestCodeSample webRequestCodeSample = new WebRequestCodeSample();
final String authenticationTicket =
webRequestCodeSample.getAuthenticationTicket("username", "password");

webRequestCodeSample
.getData(
new URL( "http://technet.rapaport.com/HTTP/RapLink/download.aspx?Programmatically=yes"), authenticationTicket);
}

/**
* Get the ticket
*
* @param username
* @param password
* @return
* @throws IOException
*/
private String getAuthenticationTicket(final String username, final String password) throws IOException {
final URL url = new URL("https://technet.rapaport.com/HTTP/Authenticate.aspx");
final String data = URLEncoder.encode("username", "UTF-8").concat("=")
.concat(URLEncoder.encode(username, "UTF-8")).concat("&")
.concat(URLEncoder.encode("password", "UTF-8")).concat("=")
.concat(URLEncoder.encode(password, "UTF-8"));

final URLConnection connection = url.openConnection();
connection.setDoOutput(true);
final OutputStream outputStream = connection.getOutputStream();
final OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream);
outputStreamWriter.write(data);
outputStreamWriter.flush();

// Get the response
final BufferedReader rd = new BufferedReader(new InputStreamReader(connection.getInputStream()));

final StringBuffer stringBuffer = new StringBuffer();
String line;
while ((line = rd.readLine()) != null) {
stringBuffer.append(line);
}
outputStreamWriter.close();
rd.close();

return stringBuffer.toString();
}

/**
* Gets the data
*
* @param url
*
eg

*
http://technet.rapaport.com/HTTP/RapLink/download.aspx?CaratSizeFrom

*
=0.30&CaratSizeTo=5

* @param ticket
*
authentication ticket

* @throws IOException
*/
private void getData(final URL url, final String ticket) throws IOException {
final String data = URLEncoder.encode("ticket", "UTF-8").concat("=").concat(URLEncoder.encode(ticket, "UTF-8"));
final URLConnection connection = url.openConnection();

connection.setDoOutput(true);
connection.setRequestProperty("Accept-Encoding", "gzip");

final OutputStream outputStream = connection.getOutputStream();
final OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream);

outputStreamWriter.write(data);
outputStreamWriter.flush();

final InputStream replyStream = connection.getInputStream();
final InputStreamReader inputStreamReader;

// The following is to check if the server sending the response supports
// Gzip
final String contentEncodingField = connection.getHeaderField("Content-Encoding");
if (contentEncodingField != null && contentEncodingField.equalsIgnoreCase("gzip")) {
// read the gzipped format
final GZIPInputStream gzipInputStream = new GZIPInputStream(replyStream);
inputStreamReader = new InputStreamReader(gzipInputStream);
} else {
inputStreamReader = new InputStreamReader(replyStream);
}

final BufferedReader reader = new BufferedReader(inputStreamReader);
String line;
while ((line = reader.readLine()) != null) {
System.out.println(line);
}
outputStreamWriter.close();
reader.close();
}
}