--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/eclipse/jetty/server/SessionIdManager.java	Wed Sep 07 21:15:48 2016 -0600
@@ -0,0 +1,81 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2014 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;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+
+import org.eclipse.jetty.util.component.LifeCycle;
+
+/** Session ID Manager.
+ * Manages session IDs across multiple contexts.
+ */
+public interface SessionIdManager extends LifeCycle
+{
+    /**
+     * @param id The session ID without any cluster node extension
+     * @return True if the session ID is in use by at least one context.
+     */
+    public boolean idInUse(String id);
+    
+    /**
+     * Add a session to the list of known sessions for a given ID.
+     * @param session The session
+     */
+    public void addSession(HttpSession session);
+    
+    /**
+     * Remove session from the list of known sessions for a given ID.
+     * @param session
+     */
+    public void removeSession(HttpSession session);
+    
+    /**
+     * Call {@link HttpSession#invalidate()} on all known sessions for the given id.
+     * @param id The session ID without any cluster node extension
+     */
+    public void invalidateAll(String id);
+    
+    /**
+     * @param request
+     * @param created
+     * @return the new session id
+     */
+    public String newSessionId(HttpServletRequest request,long created);
+    
+    public String getWorkerName();
+    
+    
+    /* ------------------------------------------------------------ */
+    /** Get a cluster ID from a node ID.
+     * Strip node identifier from a located session ID.
+     * @param nodeId
+     * @return the cluster id
+     */
+    public String getClusterId(String nodeId);
+    
+    /* ------------------------------------------------------------ */
+    /** Get a node ID from a cluster ID and a request
+     * @param clusterId The ID of the session
+     * @param request The request that for the session (or null)
+     * @return The session ID qualified with the node ID.
+     */
+    public String getNodeId(String clusterId,HttpServletRequest request);
+    
+}