HttpUrlConnectionDelayTest.java

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;

import org.junit.Test;

public class HttpURLConnectionDelayTest {

	static String param1 = "v=1.0&langpair=de%7Cen&q=159%0A&langpair=de%7Cen&q=Vaterrolle%0A&langpair=de%7Cen&q=Informationen+%C3%BCber+die+Rolle+des+Vaters+bei+der+Kindererziehung%0A&langpair=de%7Cen&q=Alle+Dokumente%2C+die+die+spezielle+Rolle+des+Vaters+bei+der+Kindererziehung%0A++++++++untersuchen.+Dazu+geh%C3%B6ren+auch+Dokumente%2C+die+die+Ver%C3%A4nderung+dieser+Rolle+%C3%BCber+die+Zeit%0A++++++++untersuchen.%0A";
	static String param2 = "v=1.0&langpair=de%7Cen&q=160%0A&langpair=de%7Cen&q=Prek%C3%A4re+Arbeitsverh%C3%A4ltnisse%0A&langpair=de%7Cen&q=Forschungsarbeiten+und+-ver%C3%B6ffentlichungen+zu+abweichenden+Formen+vom%0A++++++++++++Normalarbeitsverh%C3%A4ltnis%0A&langpair=de%7Cen&q=Welche+%27atypischen%27+Formen+haben+sich+entwickelt%3F+Welches+sind+die+%27prek%C3%A4ren%27+Folgen%0A++++++++++++f%C3%BCr+die+betroffenen+Arbeitnehmer%3F+Welche+Verbesserungen+des+Kranken-%2C+Renten-+und%0A++++++++++++Arbeitslosen-Versicherungsstatus+sind+in+der+Diskussion%3F+Gibt+es+Faktoren%2C+die+die%0A++++++++++++Entwicklungen+stoppen+k%C3%B6nnen%3F%0A";

	
	public static void makeQuery(String parameter) throws Exception
	{
		URL url = new URL("http://ajax.googleapis.com/ajax/services/language/translate");
		
		final HttpURLConnection connection = (HttpURLConnection) url.openConnection();
		connection.setRequestProperty("referer", "www.test.org");
		connection.setRequestMethod("POST");
		connection.setDoOutput(true);
		
		final PrintWriter writer = new PrintWriter(connection.getOutputStream());
		writer.write(parameter);
		writer.flush();
		
		try {
			// DEBUG
			InputStream in = connection.getInputStream();
			final String result = inputStreamToString(in);
			System.out.println(result);
		} finally { // http://java.sun.com/j2se/1.5.0/docs/guide/net/http-keepalive.html
			connection.getInputStream().close();
			if (connection.getErrorStream() != null) {
				connection.getErrorStream().close();
			}
			writer.close();
		}
	}
	
	
//	@Test
	public void testOnlyFirst() throws Exception 
	{
		makeQuery(param1);
	}
	
	
//	@Test
	public void testOnlySecond() throws Exception 
	{
		makeQuery(param2);
	}
	
	
//	@Test
	public void testBoth() throws Exception 
	{
		makeQuery(param1);
		makeQuery(param2);
	}
	
	
//	@Test
	public void testBothButReversed() throws Exception 
	{	
		makeQuery(param2);
		makeQuery(param1);
	}
	
	
    private static String inputStreamToString(final InputStream inputStream) throws Exception {
    	final StringBuilder outputBuilder = new StringBuilder();
    	
    	try {
    		String string;
    		if (inputStream != null) {
    			BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
    			while (null != (string = reader.readLine())) {
    				outputBuilder.append(string).append('\n');
    			}
    		}
    	} catch (Exception ex) {
    		throw new Exception("[google-api-translate-java] Error reading translation stream.", ex);
    	}
    	
    	return outputBuilder.toString();
    }
}