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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.core;
import com.yahoo.yolean.system.CatchSignals;
import java.util.Arrays;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* @author arnej27959
*/
public class StandaloneMain {
private static final Logger log = Logger.getLogger(StandaloneMain.class.getName());
private final BootstrapLoader loader;
static {
// force load slf4j to avoid other logging frameworks from initializing before it
org.slf4j.LoggerFactory.getLogger(org.slf4j.Logger.ROOT_LOGGER_NAME);
}
public StandaloneMain() {
this.loader = new ApplicationLoader(Main.newOsgiFramework(), Main.newConfigModule());
}
public static void main(String [] args) {
if (args == null || args.length != 1 || args[0] == null) {
throw new IllegalArgumentException("Expected 1 argument, got " + Arrays.toString(args) + ".");
}
StandaloneMain me = new StandaloneMain();
me.run(args[0]);
}
void run(String bundleLocation) {
try {
log.log(Level.FINE, "Initializing application without privileges.");
setupSignalHandlers();
loader.init(bundleLocation, false);
loader.start();
waitForShutdown();
log.log(Level.INFO, "JDisc shutting down");
loader.stop();
log.log(Level.FINE, "Trying to clean up in a controlled manner.");
loader.destroy();
log.log(Level.FINE, "Stopped ok.");
System.exit(0);
} catch (Throwable e) {
log.log(Level.SEVERE, "JDisc exiting: Throwable caught: ", e);
System.exit(6);
}
}
private final AtomicBoolean signalCaught = new AtomicBoolean(false);
private void setupSignalHandlers() {
CatchSignals.setup(signalCaught);
}
private void waitForShutdown() {
synchronized (signalCaught) {
while (!signalCaught.get()) {
try {
signalCaught.wait();
} catch (InterruptedException e) {
// empty
}
}
}
}
}
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