@SuppressWarnings({"unchecked", "boxing", "rawtypes"})
private DiscoveryManager getRemoteProxyToDiscoveryManager(final String ip, final int port) {
final String address = ip + ":" + port;
final int timeout = 500; // 500 ms RemoteAPIImpl if need detailed version...
this.logger.status("remoteproxytodiscovery/start", "ip", ip, "port", port);
final DiscoveryManager newClient =
Proxies.newClient(
EXPORT_NAME, address, getClass().getClassLoader(), DiscoveryManager.class);
// Execute collection asynchronously (TODO: cache pool usage could be improved)
final ExecutorService cachePool =
Executors.newCachedThreadPool(RemoteDiscoveryImpl.threadFactory);
final ExecutorCompletionService<String> ecs = new ExecutorCompletionService(cachePool);
final Future<String> future =
ecs.submit(
new Callable<String>() {
public String call() throws Exception {
return AccessController.doPrivileged(
new PrivilegedAction<String>() {
public String run() {
return newClient.ping(667) == 667 ? "OK" : null;
}
});
}
});
// Wait at most half a second (TODO: Make this configurable)
try {
final String string = future.get(timeout, TimeUnit.MILLISECONDS);
if (string == null) return null;
return newClient;
} catch (final InterruptedException e) {
this.logger.status("remoteproxytodiscovery/exception/interrupted", "message", e.getMessage());
e.printStackTrace();
} catch (final ExecutionException e) {
this.logger.status(
"remoteproxytodiscovery/exception/executionexception", "message", e.getMessage());
} catch (final TimeoutException e) {
this.logger.status(
"remoteproxytodiscovery/exception/timeoutexception", "message", e.getMessage());
} catch (final SecurityException e) {
this.logger.status(
"remoteproxytodiscovery/exception/securityexception", "message", e.getMessage());
e.printStackTrace();
} finally {
AccessController.doPrivileged(
new PrivilegedAction<Object>() {
public Object run() {
future.cancel(true);
cachePool.shutdownNow();
return null;
}
});
this.logger.status("remoteproxytodiscovery/end");
}
this.logger.status("remoteproxytodiscovery/end");
return null;
}
