Examples of org.apache.catalina.Manager

org.apache.catalina.Manager
A Manager manages the pool of Sessions that are associated with a particular Container. Different Manager implementations may support value-added features such as the persistent storage of session data, as well as migrating sessions for distributable web applications.
In order for a Manager implementation to successfully operate with a Context implementation that implements reloading, it must obey the following constraints:
- Must implement Lifecycle so that the Context can indicate that a restart is required.
- Must allow a call to stop() to be followed by a call to start() on the same Manager instance.
@author Craig R. McClanahan @version $Revision: 1.12 $ $Date: 2004/08/16 09:31:07 $

                    log.debug(sm.getString("ReplicationValve.crossContext.add"));
                //FIXME add Pool of Arraylists
                crossContextSessions.set(new ArrayList());
            }
            getNext().invoke(request, response);
            Manager manager = request.getContext().getManager();
            if (manager != null && manager instanceof ClusterManager) {
                ClusterManager clusterManager = (ClusterManager) manager;
                CatalinaCluster containerCluster = (CatalinaCluster) getContainer().getCluster();
                if (containerCluster == null) {
                    if (log.isWarnEnabled())

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     * @throws IOException
     */
    protected void createPrimaryIndicator(Request request) throws IOException {
        String id = request.getRequestedSessionId();
        if ((id != null) && (id.length() > 0)) {
            Manager manager = request.getContext().getManager();
            Session session = manager.findSession(id);
            if (session instanceof ClusterSession) {
                ClusterSession cses = (ClusterSession) session;
                if (cses != null) {
                    if (log.isDebugEnabled())
                        log.debug(sm.getString(

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            if (context == null) {
                writer.println(sm.getString("managerServlet.noContext",
                                            RequestUtil.filter(displayPath)));
                return;
            }
            Manager manager = context.getManager() ;
            if(manager == null) {
               writer.println(sm.getString("managerServlet.noManager",
               RequestUtil.filter(displayPath)));
               return;               
            }
            int maxCount = 60;
            int maxInactiveInterval = manager.getMaxInactiveInterval()/60;
            int histoInterval = maxInactiveInterval / maxCount;
            if ( histoInterval * maxCount < maxInactiveInterval ) 
                histoInterval++;
            maxCount = maxInactiveInterval / histoInterval;
            if ( histoInterval * maxCount < maxInactiveInterval ) 
                maxCount++;


            writer.println(sm.getString("managerServlet.sessions", displayPath));
            writer.println(sm.getString("managerServlet.sessiondefaultmax",
                                "" + maxInactiveInterval));
            Session [] sessions = manager.findSessions();
            int [] timeout = new int[maxCount];
            int notimeout = 0;
            int expired = 0;
            long now = System.currentTimeMillis();
            for (int i = 0; i < sessions.length; i++) {

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             && getCluster() != null
             && request.getContext() != null
             && request.getContext().getDistributable() ) {
             // valve cluster can access manager - other cluster handle turnover 
             // at host level - hopefully!
             Manager manager = request.getContext().getManager();
             if (manager != null && manager instanceof ClusterManager
                     && getCluster().getManager(((ClusterManager)manager).getName()) != null)
                 handlePossibleTurnover(request, response);
        }
        // Pass this request on to the next valve in our pipeline

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     * 
     * @param request current request
     * @return return jvmRoute from ManagerBase or null
     */
    protected String getLocalJvmRoute(Request request) {
        Manager manager = getManager(request);
        if(manager instanceof ManagerBase)
            return ((ManagerBase) manager).getJvmRoute();
        return null ;
    }

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     * 
     * @param request current request
     * @return manager or null
     */
    protected Manager getManager(Request request) {
        Manager manager = request.getContext().getManager();
        if (log.isDebugEnabled()) {
            if(manager != null)
                log.debug(sm.getString("jvmRoute.foundManager", manager,  request.getContext().getName()));
            else 
                log.debug(sm.getString("jvmRoute.notFoundManager", manager,  request.getContext().getName()));

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     * @see #addManager(String, Manager)
     * @see DeltaManager#start()
     */
    public synchronized Manager createManager(String name) {
        if (log.isDebugEnabled()) log.debug("Creating ClusterManager for context " + name + " using class " + getManagerClassName());
        Manager manager = null;
        try {
            manager = managerTemplate.cloneFromTemplate();
            ((ClusterManager)manager).setName(name);
        } catch (Exception x) {
            log.error("Unable to clone cluster manager, defaulting to org.apache.catalina.ha.session.DeltaManager", x);

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                // Notify our interested LifecycleListeners
                lifecycle.fireLifecycleEvent(START_EVENT, null);
                
                // Acquire clustered manager
                Manager contextManager = null;
                if (manager == null) {
                    if ( (getCluster() != null) && distributable) {
                        try {
                            contextManager = getCluster().createManager(getName());
                        } catch (Exception ex) {

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                args[8] = response.encodeURL
                    (request.getContextPath() +
                     "/html/expire?path=" + displayPath);
                args[9] = appsExpire;
                args[10] = sm.getString("htmlManagerServlet.expire.explain");
                Manager manager = context.getManager();
                if (manager == null) {
                    args[11] = sm.getString("htmlManagerServlet.noManager");
                } else {
                    args[11] = new Integer(
                            context.getManager().getMaxInactiveInterval()/60);

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     * @see #addManager(String, Manager)
     * @see DeltaManager#start()
     */
    public synchronized Manager createManager(String name) {
        if (log.isDebugEnabled()) log.debug("Creating ClusterManager for context " + name + " using class " + getManagerClassName());
        Manager manager = null;
        try {
            manager = managerTemplate.cloneFromTemplate();
            ((ClusterManager)manager).setName(name);
        } catch (Exception x) {
            log.error("Unable to clone cluster manager, defaulting to org.apache.catalina.ha.session.DeltaManager", x);

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