/**
* Register the classLoader and start a thread that will be used to monitor folders where classes
* can be created.
*
* @param classLoader the classLoader of the application
* @param ctx the spring application context
*/
public static void register(ClassLoader classLoader, ConfigurableApplicationContext ctx) {
try {
Environment env = ctx.getEnvironment();
// Load from env the list of folders to watch
List<String> watchFolders = getWatchFolders(env);
if (watchFolders.size() == 0) {
log.warn(
"SpringLoaded - No watched folders have been defined in the application-{profile}.yml. "
+ "We will use the default target/classes");
watchFolders.add("target/classes");
}
final Thread thread =
new Thread(new JHipsterFileSystemWatcher(watchFolders, ctx, classLoader));
thread.setDaemon(true);
thread.start();
Runtime.getRuntime()
.addShutdownHook(
new Thread() {
public void run() {
JHipsterFileSystemWatcher.isStarted = false;
try {
thread.join();
} catch (InterruptedException e) {
log.error("Failed during the JVM shutdown", e);
}
}
});
} catch (Exception e) {
log.error("Failed to start the watcher. New class will not be loaded.", e);
}
}
private static boolean isAaptPresent() throws Exception {
boolean result = true;
try {
Process proc = Runtime.getRuntime().exec("aapt");
BufferedReader br = new BufferedReader(new InputStreamReader(proc.getErrorStream()));
String line = null;
while ((line = br.readLine()) != null) {}
} catch (Exception ex) {
result = false;
}
return result;
}
public static boolean init() {
synchronized (cudaEngines) {
System.err.println("---------Initializing Cuda----------------");
try {
extractAndLoadNativeLibs();
JCudaDriver.setExceptionsEnabled(true);
JCudaDriver.cuInit(0);
compileKernelsPtx();
// Obtain the number of devices
int deviceCountArray[] = {0};
JCudaDriver.cuDeviceGetCount(deviceCountArray);
availableDevicesNb = deviceCountArray[0];
if (availableDevicesNb == 0) return false;
availableDevicesNb = NB_OF_DEVICE_TO_USE; // TODO
initialization = Executors.newCachedThreadPool();
System.out.println("Found " + availableDevicesNb + " GPU devices");
for (int i = 0 /*-NB_OF_DEVICE_TO_USE*/; i < availableDevicesNb; i++) {
final int index = i;
Future<?> initJob =
initialization.submit(
new Runnable() {
public void run() {
System.err.println("Initializing device n°" + index);
cudaEngines.put(index, new CudaEngine(index));
}
});
initJob.get();
initialization.shutdown();
}
} catch (InterruptedException
| ExecutionException
| IOException
| CudaException
| UnsatisfiedLinkError e) {
e.printStackTrace();
System.err.println("---------Cannot initialize Cuda !!! ----------------");
return false;
}
Runtime.getRuntime()
.addShutdownHook(
new Thread() {
@Override
public void run() {
CudaEngine.stop();
}
});
System.out.println("---------Cuda Initialized----------------");
return true;
}
}
private boolean startLauncher(File dir) {
try {
Runtime rt = Runtime.getRuntime();
ArrayList<String> command = new ArrayList<String>();
command.add("java");
command.add("-jar");
command.add("Launcher.jar");
String[] cmdarray = command.toArray(new String[command.size()]);
Process proc = rt.exec(cmdarray, null, dir);
return true;
} catch (Exception ex) {
System.err.println("Unable to start the Launcher program.\n" + ex.getMessage());
return false;
}
}
/**
* Checks if address can be reached using one argument InetAddress.isReachable() version or ping
* command if failed.
*
* @param addr Address to check.
* @param reachTimeout Timeout for the check.
* @return {@code True} if address is reachable.
*/
public static boolean reachableByPing(InetAddress addr, int reachTimeout) {
try {
if (addr.isReachable(reachTimeout)) return true;
String cmd = String.format("ping -%s 1 %s", U.isWindows() ? "n" : "c", addr.getHostAddress());
Process myProc = Runtime.getRuntime().exec(cmd);
myProc.waitFor();
return myProc.exitValue() == 0;
} catch (IOException ignore) {
return false;
} catch (InterruptedException ignored) {
Thread.currentThread().interrupt();
return false;
}
}