/**
* Blocking, may take a while, up to 20 seconds
*/
public synchronized void stop() {
if (_log.shouldLog(Log.DEBUG))
_log.debug("UPnP Stop");
_shouldBeRunning = false;
_rescanner.cancel();
if (_isRunning)
_upnp.terminate();
_isRunning = false;
_detectedAddress = null;
if (_log.shouldLog(Log.DEBUG))
_log.debug("UPnP Stop Done");
}
/**
* Blocking, may take a while
*/
public synchronized void start() {
if (_log.shouldLog(Log.DEBUG))
_log.debug("UPnP Start");
_shouldBeRunning = true;
if (!_isRunning) {
long b = _context.clock().now();
try {
_isRunning = _upnp.runPlugin();
if (_log.shouldLog(Log.INFO))
_log.info("UPnP runPlugin took " + (_context.clock().now() - b));
} catch (Exception e) {
// NPE in UPnP (ticket #728), can't let it bring us down
if (!_errorLogged) {
_log.error("UPnP error, please report", e);
_errorLogged = true;
}
}
}
if (_isRunning) {
_rescanner.schedule(RESCAN_LONG_DELAY);
if (_log.shouldLog(Log.DEBUG))
_log.debug("UPnP Start Done");
} else {
_rescanner.schedule(RESCAN_SHORT_DELAY);
// Do we have a non-loopback, non-broadcast address?
// If not, that's why it failed (HTTPServer won't start)
if (!Addresses.isConnected()) {
if (!_disconLogged) {
_log.logAlways(Log.WARN, "UPnP start failed - no network connection?");
_disconLogged = true;
}
} else {
_log.error("UPnP start failed - port conflict?");
}
}
}
/**
* @param action "start" or "stop" or "uninstall"
* @throws just about anything if an app has a delay less than zero, caller would be wise to catch
* Throwable If no apps have a delay less than zero, it shouldn't throw anything
*/
private static void runClientApps(
RouterContext ctx, File pluginDir, List<ClientAppConfig> apps, String action)
throws Exception {
Log log = ctx.logManager().getLog(PluginStarter.class);
// initialize pluginThreadGroup and _pendingPluginClients
String pluginName = pluginDir.getName();
if (!pluginThreadGroups.containsKey(pluginName))
pluginThreadGroups.put(pluginName, new ThreadGroup(pluginName));
ThreadGroup pluginThreadGroup = pluginThreadGroups.get(pluginName);
if (action.equals("start"))
_pendingPluginClients.put(pluginName, new ConcurrentHashSet<SimpleTimer2.TimedEvent>());
for (ClientAppConfig app : apps) {
// If the client is a running ClientApp that we want to stop,
// bypass all the logic below.
if (action.equals("stop")) {
String[] argVal = LoadClientAppsJob.parseArgs(app.args);
// We must do all the substitution just as when started, so the
// argument array comparison in getClientApp() works.
// Do this after parsing so we don't need to worry about quoting
for (int i = 0; i < argVal.length; i++) {
if (argVal[i].indexOf("$") >= 0) {
argVal[i] = argVal[i].replace("$I2P", ctx.getBaseDir().getAbsolutePath());
argVal[i] = argVal[i].replace("$CONFIG", ctx.getConfigDir().getAbsolutePath());
argVal[i] = argVal[i].replace("$PLUGIN", pluginDir.getAbsolutePath());
}
}
ClientApp ca = ctx.routerAppManager().getClientApp(app.className, argVal);
if (ca != null) {
// even if (ca.getState() != ClientAppState.RUNNING), we do this, we don't want to fall
// thru
try {
ca.shutdown(LoadClientAppsJob.parseArgs(app.stopargs));
} catch (Throwable t) {
throw new Exception(t);
}
continue;
}
}
if (action.equals("start") && app.disabled) continue;
String argVal[];
if (action.equals("start")) {
// start
argVal = LoadClientAppsJob.parseArgs(app.args);
} else {
String args;
if (action.equals("stop")) args = app.stopargs;
else if (action.equals("uninstall")) args = app.uninstallargs;
else throw new IllegalArgumentException("bad action");
// args must be present
if (args == null || args.length() <= 0) continue;
argVal = LoadClientAppsJob.parseArgs(args);
}
// do this after parsing so we don't need to worry about quoting
for (int i = 0; i < argVal.length; i++) {
if (argVal[i].indexOf("$") >= 0) {
argVal[i] = argVal[i].replace("$I2P", ctx.getBaseDir().getAbsolutePath());
argVal[i] = argVal[i].replace("$CONFIG", ctx.getConfigDir().getAbsolutePath());
argVal[i] = argVal[i].replace("$PLUGIN", pluginDir.getAbsolutePath());
}
}
ClassLoader cl = null;
if (app.classpath != null) {
String cp = app.classpath;
if (cp.indexOf("$") >= 0) {
cp = cp.replace("$I2P", ctx.getBaseDir().getAbsolutePath());
cp = cp.replace("$CONFIG", ctx.getConfigDir().getAbsolutePath());
cp = cp.replace("$PLUGIN", pluginDir.getAbsolutePath());
}
// Old way - add for the whole JVM
// addToClasspath(cp, app.clientName, log);
// New way - add only for this client
// We cache the ClassLoader we start the client with, so
// we can reuse it for stopping and uninstalling.
// If we don't, the client won't be able to find its
// static members.
String clCacheKey = pluginName + app.className + app.args;
if (!action.equals("start")) cl = _clCache.get(clCacheKey);
if (cl == null) {
URL[] urls = classpathToURLArray(cp, app.clientName, log);
if (urls != null) {
cl = new URLClassLoader(urls, ClassLoader.getSystemClassLoader());
if (action.equals("start")) _clCache.put(clCacheKey, cl);
}
}
}
if (app.delay < 0 && action.equals("start")) {
// this will throw exceptions
LoadClientAppsJob.runClientInline(app.className, app.clientName, argVal, log, cl);
} else if (app.delay == 0 || !action.equals("start")) {
// quick check, will throw ClassNotFoundException on error
LoadClientAppsJob.testClient(app.className, cl);
// run this guy now
LoadClientAppsJob.runClient(
app.className, app.clientName, argVal, ctx, log, pluginThreadGroup, cl);
} else {
// If there is some delay, there may be a really good reason for it.
// Loading a class would be one of them!
// So we do a quick check first, If it bombs out, we delay and try again.
// If it bombs after that, then we throw the ClassNotFoundException.
try {
// quick check
LoadClientAppsJob.testClient(app.className, cl);
} catch (ClassNotFoundException ex) {
// Try again 1 or 2 seconds later.
// This should be enough time. Although it is a lousy hack
// it should work for most cases.
// Perhaps it may be even better to delay a percentage
// if > 1, and reduce the delay time.
// Under normal circumstances there will be no delay at all.
try {
if (app.delay > 1) {
Thread.sleep(2000);
} else {
Thread.sleep(1000);
}
} catch (InterruptedException ie) {
}
// quick check, will throw ClassNotFoundException on error
LoadClientAppsJob.testClient(app.className, cl);
}
// wait before firing it up
SimpleTimer2.TimedEvent evt =
new TrackedDelayedClient(
pluginName,
ctx.simpleTimer2(),
ctx,
app.className,
app.clientName,
argVal,
pluginThreadGroup,
cl);
evt.schedule(app.delay);
}
}
}