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//
// ========================================================================
// Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.servlets;
import static org.junit.Assert.*;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.junit.Test;
/**
*
*/
public class BalancerServletTest extends AbstractBalancerServletTest
{
@Test
public void testRoundRobinBalancer() throws Exception
{
setStickySessions(false);
startBalancer(CounterServlet.class);
for (int i = 0; i < 10; i++)
{
byte[] responseBytes = sendRequestToBalancer("/");
String returnedCounter = readFirstLine(responseBytes);
// RR : response should increment every other request
String expectedCounter = String.valueOf(i / 2);
assertEquals(expectedCounter,returnedCounter);
}
}
@Test
public void testStickySessionsBalancer() throws Exception
{
setStickySessions(true);
startBalancer(CounterServlet.class);
for (int i = 0; i < 10; i++)
{
byte[] responseBytes = sendRequestToBalancer("/");
String returnedCounter = readFirstLine(responseBytes);
// RR : response should increment on each request
String expectedCounter = String.valueOf(i);
assertEquals(expectedCounter,returnedCounter);
}
}
@Test
public void testProxyPassReverse() throws Exception
{
setStickySessions(false);
startBalancer(RelocationServlet.class);
byte[] responseBytes = sendRequestToBalancer("index.html");
String msg = readFirstLine(responseBytes);
assertEquals("success",msg);
}
private String readFirstLine(byte[] responseBytes) throws IOException
{
BufferedReader reader = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(responseBytes)));
return reader.readLine();
}
@SuppressWarnings("serial")
public static final class CounterServlet extends HttpServlet
{
private int counter;
@Override
public void init() throws ServletException
{
counter = 0;
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
// Force session creation
req.getSession();
resp.setContentType("text/plain");
resp.getWriter().println(counter++);
}
}
@SuppressWarnings("serial")
public static final class RelocationServlet extends HttpServlet
{
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
if (req.getRequestURI().endsWith("/index.html"))
{
resp.sendRedirect("http://localhost:" + req.getLocalPort() + req.getContextPath() + req.getServletPath() + "/other.html?secret=pipo%20molo");
return;
}
resp.setContentType("text/plain");
if ("pipo molo".equals(req.getParameter("secret")))
{
resp.getWriter().println("success");
}
else
{
resp.getWriter().println("failure");
}
}
}
}
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