import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import java.lang.management.ManagementFactory;
+import java.lang.management.ThreadInfo;
+
public class ShutdownServiceImpl implements ShutdownService, AutoCloseable {
private final ShutdownService impl;
private final ShutdownRuntimeRegistration registration;
}
@Override
- public void shutdown(String inputSecret, Optional<String> reason) {
- impl.shutdown(inputSecret, reason);
+ public void shutdown(String inputSecret, Long maxWaitTime, Optional<String> reason) {
+ impl.shutdown(inputSecret, maxWaitTime, reason);
}
@Override
}
@Override
- public void shutdown(String inputSecret, Optional<String> reason) {
+ public void shutdown(String inputSecret, Long maxWaitTime, Optional<String> reason) {
logger.warn("Shutdown issued with secret {} and reason {}", inputSecret, reason);
try {
Thread.sleep(1000); // prevent brute force attack
if (this.secret.equals(inputSecret)) {
logger.info("Server is shutting down");
- Thread stopSystemBundle = new Thread() {
- @Override
- public void run() {
- try {
- // wait so that JMX response is received
- Thread.sleep(1000);
- systemBundle.stop();
- } catch (BundleException e) {
- logger.warn("Can not stop OSGi server", e);
- } catch (InterruptedException e) {
- logger.warn("Shutdown process interrupted", e);
- }
- }
- };
- stopSystemBundle.start();
-
+ // actual work:
+ Thread stopSystemBundleThread = new StopSystemBundleThread(systemBundle);
+ stopSystemBundleThread.start();
+ if (maxWaitTime != null && maxWaitTime > 0) {
+ Thread systemExitThread = new CallSystemExitThread(maxWaitTime);
+ logger.debug("Scheduling {}", systemExitThread);
+ systemExitThread.start();
+ }
+ // end
} else {
logger.warn("Unauthorized attempt to shut down server");
throw new IllegalArgumentException("Invalid secret");
}
+class StopSystemBundleThread extends Thread {
+ private static final Logger logger = LoggerFactory.getLogger(StopSystemBundleThread.class);
+ private final Bundle systemBundle;
+
+ StopSystemBundleThread(Bundle systemBundle) {
+ super("stop-system-bundle");
+ this.systemBundle = systemBundle;
+ }
+
+ @Override
+ public void run() {
+ try {
+ // wait so that JMX response is received
+ Thread.sleep(1000);
+ logger.debug("Stopping system bundle");
+ systemBundle.stop();
+ } catch (BundleException e) {
+ logger.warn("Can not stop OSGi server", e);
+ } catch (InterruptedException e) {
+ logger.warn("Shutdown process interrupted", e);
+ }
+ }
+}
+
+class CallSystemExitThread extends Thread {
+ private static final Logger logger = LoggerFactory.getLogger(CallSystemExitThread.class);
+ private final long maxWaitTime;
+ CallSystemExitThread(long maxWaitTime) {
+ super("call-system-exit-daemon");
+ setDaemon(true);
+ if (maxWaitTime <= 0){
+ throw new IllegalArgumentException("Cannot schedule to zero or negative time:" + maxWaitTime);
+ }
+ this.maxWaitTime = maxWaitTime;
+ }
+
+ @Override
+ public String toString() {
+ return "CallSystemExitThread{" +
+ "maxWaitTime=" + maxWaitTime +
+ '}';
+ }
+
+ @Override
+ public void run() {
+ try {
+ // wait specified time
+ Thread.sleep(maxWaitTime);
+ logger.error("Since some threads are still running, server is going to shut down via System.exit(1) !");
+ // do a thread dump
+ ThreadInfo[] threads = ManagementFactory.getThreadMXBean().dumpAllThreads(true, true);
+ StringBuffer sb = new StringBuffer();
+ for(ThreadInfo info : threads) {
+ sb.append(info);
+ sb.append("\n");
+ }
+ logger.warn("Thread dump:{}", sb);
+ System.exit(1);
+ } catch (InterruptedException e) {
+ logger.warn("Interrupted, not going to call System.exit(1)");
+ }
+ }
+}
+
+
class MXBeanImpl implements ShutdownRuntimeMXBean {
private final ShutdownService impl;
}
@Override
- public void shutdown(String inputSecret, String nullableReason) {
+ public void shutdown(String inputSecret, Long maxWaitTime, String nullableReason) {
Optional<String> optionalReason;
if (nullableReason == null) {
optionalReason = Optional.absent();
} else {
optionalReason = Optional.of(nullableReason);
}
- impl.shutdown(inputSecret, optionalReason);
+ impl.shutdown(inputSecret, maxWaitTime, optionalReason);
}
}