/**
* Will create a new ClusteredServer and add it to the hash map.
*
* @param domainName The domain name for the new server
* @param directory The director for the new server.
*/
public synchronized void addServer(String domainName, String directory) {
if (domainName == null) {
throw new IllegalArgumentException("The domainName cannot be null");
}
if (directory == null) {
directory = "";
}
ClusteredServer server = createNewServer(domainName, directory);
servers.put(server.getServerId(), server);
statusChecker.addServer(server);
log.debug(
"Added server " + domainName + directory + " to the cluster on id " + server.getServerId());
}
/**
* Checks the request for any session. If there is a session created we make sure that the server
* returned is the one the issued the session. If no session is included in the request we will
* choose the next server in a round-robin fashion.
*
* @see net.sf.j2ep.model.ServerContainer#getServer(javax.servlet.http.HttpServletRequest)
*/
public Server getServer(HttpServletRequest request) {
String serverId = getServerIdFromCookie(request.getCookies());
ClusteredServer server = (ClusteredServer) servers.get(serverId);
if (server == null || !server.online()) {
server = getNextServer();
} else {
log.debug("Server found in session");
}
if (server.online()) {
log.debug("Using id " + server.getServerId() + " for this request");
} else {
log.error(
"All the servers in this cluster are offline. Using id "
+ server.getServerId()
+ ", will probably not work");
}
return server;
}
/**
* Sets the server to online status. Will only handle servers that are ClusteredServers
*
* @see net.sf.j2ep.servers.ServerStatusListener#serverOnline(net.sf.j2ep.model.Server)
*/
public void serverOnline(Server server) {
if (server instanceof ClusteredServer) {
((ClusteredServer) server).setOnline(true);
}
}
