package org.jboss.as.test.integration.ee.appclient.basic;
import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.ejb.ConcurrencyManagement;
import javax.ejb.ConcurrencyManagementType;
import javax.ejb.Singleton;
import org.jboss.logging.Logger;
/**
* @author Stuart Douglas
*/
@Singleton
@ConcurrencyManagement(ConcurrencyManagementType.BEAN)
public class AppClientStateSingleton implements AppClientSingletonRemote {
private static final Logger logger = Logger.getLogger("org.jboss.as.test.appclient");
private volatile CountDownLatch latch = new CountDownLatch(1);
private volatile String value;
@Override
public void reset() {
logger.trace("Reset called!");
value = null;
//if we have a thread blocked on the latch release it
latch.countDown();
latch = new CountDownLatch(1);
}
@Override
public void makeAppClientCall(final String value) {
logger.trace("AppClient Call called!");
this.value = value;
latch.countDown();
}
@Override
public String awaitAppClientCall() {
try {
boolean b = latch.await(30, TimeUnit.SECONDS);
logger.trace("Await returned: " + b + " : " + value);
if (!b) {
ThreadInfo[] threadInfos = ManagementFactory.getThreadMXBean().dumpAllThreads(true, true);
for (ThreadInfo info : threadInfos) {
logger.trace(info);
}
}
return value;
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
}