/**
* Start this server. If we manage an own HttpServer, then the HttpServer will be started as well.
*/
public void start() {
// URL as configured takes precedence
String configUrl =
NetworkUtil.replaceExpression(config.getJolokiaConfig().get(ConfigKey.DISCOVERY_AGENT_URL));
jolokiaHttpHandler.start(
lazy, configUrl != null ? configUrl : url, config.getAuthenticator() != null);
if (httpServer != null) {
// Starting our own server in an own thread group with a fixed name
// so that the cleanup thread can recognize it.
ThreadGroup threadGroup = new ThreadGroup("jolokia");
threadGroup.setDaemon(false);
Thread starterThread =
new Thread(
threadGroup,
new Runnable() {
@Override
public void run() {
httpServer.start();
}
});
starterThread.start();
cleaner = new CleanupThread(httpServer, threadGroup);
cleaner.start();
}
}
/**
* Returns an array containing the existing client connections. This can be used by concrete
* subclasses to implement messages that do something with each connection (e.g. kill it, send a
* message to it etc.). Remember that after this array is obtained, some clients in this migth
* disconnect. New clients can also connect, these later will not appear in the array.
*
* @return an array of <code>Thread</code> containing <code>ConnectionToClient</code> instances.
*/
public final synchronized Thread[] getClientConnections() {
Thread[] clientThreadList = new Thread[clientThreadGroup.activeCount()];
clientThreadGroup.enumerate(clientThreadList);
return clientThreadList;
}
/** Helper method for main to load tests into a thread group and start each test case. */
private static void loadThread(String name) {
try {
ThreadGroup myThreadGroup = new ThreadGroup(name);
String urlSpec = "http://54.201.122.231:8181/v4/gumball";
// String urlSpec = "http://localhost:8080/v4/gumball" ;
RunLoadTest test = new RunLoadTest(myThreadGroup, urlSpec);
test.runTest(); // Run The Test in its own thread
myThreadGroup.list();
} catch (Exception e) {
System.out.println("ERROR: " + e.getMessage());
}
}
private Runner getRunner() {
try {
return (Runner) threadpool.pop();
} catch (EmptyStackException empty) {
if (runners.activeCount() > 255) throw new RuntimeException("System overload");
return new Runner();
}
}
public static void main(String args[]) {
try {
ServerSocket serv = new ServerSocket(8080);
System.out.println("showserver created at port 8080.");
ThreadGroup workers = new ThreadGroup("WebWorkers");
while (true) {
if (workers.activeCount() < maxCon) {
System.out.println("Hay " + workers.activeCount() + " hebras corriendo.");
Socket conn = serv.accept();
Thread hs = new Thread(workers, new HebraServ(conn));
hs.start();
} else {
try {
Thread.sleep(500);
} catch (Exception ex) {
}
}
}
} catch (IOException e) {
System.err.println(e);
}
}
public static boolean kill() {
int j = 0;
Thread meMySelfI = Thread.currentThread();
do {
/* iter across the thread group, killing all members. */
shutdown = true;
Thread list[] = new Thread[tg.activeCount()];
// get all members of the group (including submembers)
int i = tg.enumerate(list);
// no members means that we have gracefully suceeded
if (i == 0) return true;
// if some of the threads do IO during the shut down they will
// need time to accomplish the IO. So, I give it to 'em
// after the first attempt.
if (j > 0)
try {
meMySelfI.sleep(500);
} catch (Exception e) {
}
;
// try to shudown each thread in the group
while (i-- > 0) {
FlickrFtpd tftp = (FlickrFtpd) list[i];
tftp.interrupt(); // first, do it politely
meMySelfI.yield(); // give 'em time to respond
tftp.forceClose(); // second, use a big hammer
meMySelfI.yield(); // give 'em time to respond
}
} while (j++ <= 3);
return false;
}
/**
* Counts the number of clients currently connected.
*
* @return the number of clients currently connected.
*/
public final int getNumberOfClients() {
return clientThreadGroup.activeCount();
}
