Implement saving or passivating when all requests have exited session; implement separate timeout for expiry scavenge and idle timeout and periodic inspection

This commit is contained in:
Jan Bartel 2016-03-04 18:04:46 +01:00
parent b61c5ffc1f
commit 436c4835a4
2 changed files with 103 additions and 254 deletions

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//
// ========================================================================
// Copyright (c) 1995-2016 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.server.session;
/**
* AbstractInspector
*
*
*/
public abstract class AbstractSessionInspector implements SessionInspector
{
/**
* <0 means never inspect
* 0 means always inspect
* >0 means inspect at that interval
*/
protected int _timeoutSec = -1;
/**
* -ve means never inspect
* 0 means always inspect
* +ve means inspect at interval
*/
protected long _lastTime;
/**
* @see org.eclipse.jetty.server.session.SessionInspector#getTimeoutSec()
*/
@Override
public int getTimeoutSec()
{
return _timeoutSec;
}
/**
* @see org.eclipse.jetty.server.session.SessionInspector#setTimeoutSet(int)
*/
@Override
public void setTimeoutSet(int sec)
{
_timeoutSec = sec;
}
/**
* @see org.eclipse.jetty.server.session.SessionInspector#preInspection()
*/
@Override
public boolean preInspection()
{
long now = System.currentTimeMillis();
return checkTimeout(now);
}
/**
* @see org.eclipse.jetty.server.session.SessionInspector#inspect(org.eclipse.jetty.server.session.Session)
*/
@Override
public void inspect(Session s)
{
_lastTime = System.currentTimeMillis();
}
/**
* @see org.eclipse.jetty.server.session.SessionInspector#postInspection()
*/
@Override
public void postInspection()
{
}
protected boolean checkTimeout (long now)
{
if (_timeoutSec == 0)
return true; // always inspect
if (_timeoutSec < 0)
return false; //never inspect
if (_lastTime == 0)
return true; //always perform inspection on first use
return ((now - _lastTime)*1000L) >= _timeoutSec; //only inspect if interval since last inspection has expired
}
}

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@ -1,254 +0,0 @@
//
// ========================================================================
// Copyright (c) 1995-2016 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.server.session;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.eclipse.jetty.client.HttpClient;
import org.eclipse.jetty.client.api.ContentResponse;
import org.eclipse.jetty.client.api.Request;
import org.eclipse.jetty.server.SessionManager;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;
import org.eclipse.jetty.util.IO;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.StdErrLog;
import org.eclipse.jetty.util.thread.Locker.Lock;
import org.junit.Test;
/**
* IdleSessionTest
*
* Checks that a session can be idled and de-idled on the next request if it hasn't expired.
*
*
*
*/
public class IdleSessionTest
{
public class IdleHashTestServer extends HashTestServer
{
private int _idlePeriod;
private File _storeDir;
public IdleHashTestServer(int port, int maxInactivePeriod, int scavengePeriod, int idlePeriod, File storeDir)
{
super(port, maxInactivePeriod, scavengePeriod);
_idlePeriod = idlePeriod;
_storeDir = storeDir;
}
@Override
public SessionManager newSessionManager()
{
FileSessionManager manager = new FileSessionManager();
manager.getSessionStore().setIdlePassivationTimeoutSec(_idlePeriod);
manager.getSessionDataStore().setStoreDir(_storeDir);
return manager;
}
}
public HashTestServer createServer(int port, int max, int scavenge, int idle, File storeDir)
{
return new IdleHashTestServer(port, max, scavenge, idle, storeDir);
}
public void pause (int sec)
{
try
{
Thread.sleep(sec * 1000L);
}
catch (InterruptedException e)
{
e.printStackTrace();
}
}
@Test
public void testSessionIdle() throws Exception
{
String contextPath = "";
String servletMapping = "/server";
int inactivePeriod = 200;
int scavengePeriod = 3;
int idlePeriod = 5;
((StdErrLog)Log.getLogger("org.eclipse.jetty.server.session")).setHideStacks(true);
System.setProperty("org.eclipse.jetty.STACKS", "false");
File storeDir = new File (System.getProperty("java.io.tmpdir"), "idle-test");
storeDir.deleteOnExit();
HashTestServer server1 = createServer(0, inactivePeriod, scavengePeriod, idlePeriod, storeDir);
TestServlet servlet = new TestServlet();
ServletHolder holder = new ServletHolder(servlet);
ServletContextHandler contextHandler = server1.addContext(contextPath);
contextHandler.addServlet(holder, servletMapping);
server1.start();
int port1 = server1.getPort();
try
{
HttpClient client = new HttpClient();
client.start();
String url = "http://localhost:" + port1 + contextPath + servletMapping;
//make a request to set up a session on the server
ContentResponse response = client.GET(url + "?action=init");
assertEquals(HttpServletResponse.SC_OK,response.getStatus());
String sessionCookie = response.getHeaders().get("Set-Cookie");
assertTrue(sessionCookie != null);
// Mangle the cookie, replacing Path with $Path, etc.
sessionCookie = sessionCookie.replaceFirst("(\\W)(P|p)ath=", "$1\\$Path=");
//and wait until the session should be idled out
pause(idlePeriod * 2);
//check that the file exists
checkSessionIdled(storeDir, HashTestServer.extractSessionId(sessionCookie));
//make another request to de-idle the session
Request request = client.newRequest(url + "?action=test");
request.getHeaders().add("Cookie", sessionCookie);
ContentResponse response2 = request.send();
assertEquals(HttpServletResponse.SC_OK,response2.getStatus());
//check session de-idled
checkSessionDeIdled(storeDir);
//wait again for the session to be idled
pause(idlePeriod * 2);
//check that it is
checkSessionIdled(storeDir, HashTestServer.extractSessionId(sessionCookie));
//delete the file
File idleFile = getIdleFile(storeDir, HashTestServer.extractSessionId(sessionCookie));
assertTrue(idleFile.exists());
assertTrue(idleFile.delete());
//make a request
request = client.newRequest(url + "?action=testfail");
request.getHeaders().add("Cookie", sessionCookie);
response2 = request.send();
assertEquals(HttpServletResponse.SC_OK,response2.getStatus());
}
finally
{
server1.stop();
IO.delete(storeDir);
}
}
/**
* @param sessionDir
* @param sessionId
*/
public void checkSessionIdled (File sessionDir, String sessionId)
{
assertNotNull(sessionDir);
assertTrue(sessionDir.exists());
String[] files = sessionDir.list();
assertNotNull(files);
assertEquals(1, files.length);
assertTrue(files[0].contains(sessionId));
}
/**
* @param sessionDir
*/
public void checkSessionDeIdled (File sessionDir)
{
assertNotNull(sessionDir);
assertTrue(sessionDir.exists());
String[] files = sessionDir.list();
assertNotNull(files);
assertEquals(0, files.length);
}
/**
* @param sessionDir
* @param sessionId
* @return
*/
public File getIdleFile (File sessionDir, String sessionId)
{
assertNotNull(sessionDir);
assertTrue(sessionDir.exists());
String[] files = sessionDir.list();
assertNotNull(files);
return new File(sessionDir, files[0]);
}
public static class TestServlet extends HttpServlet
{
public String originalId = null;
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse httpServletResponse) throws ServletException, IOException
{
String action = request.getParameter("action");
if ("init".equals(action))
{
HttpSession session = request.getSession(true);
session.setAttribute("test", "test");
originalId = session.getId();
Session s = (Session)session;
try (Lock lock = s.lock())
{
assertTrue(!s.isPassivated());
}
}
else if ("test".equals(action))
{
HttpSession session = request.getSession(false);
assertTrue(session != null);
assertTrue(originalId.equals(session.getId()));
assertEquals("test", session.getAttribute("test"));
}
else if ("testfail".equals(action))
{
HttpSession session = request.getSession(false);
assertTrue(session == null);
}
}
}
}