Examples with ClusterManager org.apache.catalina.ha.ClusterManager used on opensource projects

Example 16 with ClusterManager

use of org.apache.catalina.ha.ClusterManager in project tomcat70 by apache.

the class ReplicationValve method invoke.

/**
 * Log the interesting request parameters, invoke the next Valve in the
 * sequence, and log the interesting response parameters.
 *
 * @param request The servlet request to be processed
 * @param response The servlet response to be created
 *
 * @exception IOException if an input/output error occurs
 * @exception ServletException if a servlet error occurs
 */
@Override
public void invoke(Request request, Response response) throws IOException, ServletException {
    long totalstart = 0;
    // this happens before the request
    if (doStatistics()) {
        totalstart = System.currentTimeMillis();
    }
    if (primaryIndicator) {
        createPrimaryIndicator(request);
    }
    Context context = request.getContext();
    boolean isCrossContext = context != null && context instanceof StandardContext && ((StandardContext) context).getCrossContext();
    try {
        if (isCrossContext) {
            if (log.isDebugEnabled())
                log.debug(sm.getString("ReplicationValve.crossContext.add"));
            // FIXME add Pool of Arraylists
            crossContextSessions.set(new ArrayList<DeltaSession>());
        }
        getNext().invoke(request, response);
        if (context != null && cluster != null && context.getManager() instanceof ClusterManager) {
            ClusterManager clusterManager = (ClusterManager) context.getManager();
            // at host level - hopefully!
            if (cluster.getManager(clusterManager.getName()) == null)
                return;
            if (cluster.hasMembers()) {
                sendReplicationMessage(request, totalstart, isCrossContext, clusterManager, cluster);
            } else {
                resetReplicationRequest(request, isCrossContext);
            }
        }
    } finally {
        // Don't register this request session again!
        if (isCrossContext) {
            if (log.isDebugEnabled())
                log.debug(sm.getString("ReplicationValve.crossContext.remove"));
            // crossContextSessions.remove() only exist at Java 5
            // register ArrayList at a pool
            crossContextSessions.set(null);
        }
    }
}