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package org.glassfish.jersey.server.internal;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ThreadFactory;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.inject.Inject;
import org.glassfish.jersey.internal.util.Producer;
import org.glassfish.jersey.server.ApplicationHandler;
import org.glassfish.jersey.server.ContainerResponse;
import org.glassfish.jersey.server.RequestContextBuilder;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.server.BackgroundScheduler;
import org.glassfish.jersey.spi.ScheduledThreadPoolExecutorProvider;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* Test basic application behavior.
*
* @author Jakub Podlesak (jakub.podlesak at oracle.com)
* @author Marek Potociar (marek.potociar at oracle.com)
* @author Michal Gajdos
*/
public class BackgroundSchedulerProviderTest {
private ApplicationHandler createApplication(Class<?>... classes) {
final ResourceConfig resourceConfig = new ResourceConfig(classes);
return new ApplicationHandler(resourceConfig);
}
public static final class CustomThread extends Thread {
public CustomThread(Runnable target) {
super(target);
}
}
@BackgroundScheduler
public static final class CustomThreadProvider extends ScheduledThreadPoolExecutorProvider {
public CustomThreadProvider() {
super("custom-scheduler");
}
@Override
public ThreadFactory getBackingThreadFactory() {
return new ThreadFactory() {
@Override
public Thread newThread(Runnable r) {
return new CustomThread(r);
}
};
}
}
@Path("executors-test")
public static final class TestResource {
@Inject
@BackgroundScheduler
private ScheduledExecutorService bs;
@GET
public int getTestResult() throws ExecutionException, InterruptedException {
int result = 1; // method invoked
final Future<Integer> future = bs.submit(new Producer<Integer>() {
@Override
public Integer call() {
final Thread thread = Thread.currentThread();
if (thread instanceof CustomThread) {
return 10; // CustomThreadProvider used to provide BackgroundScheduler executor service
}
return 0;
}
});
result += future.get();
return result;
}
}
@Test
public void testCustomRuntimeThreadProviderSupport() throws ExecutionException, InterruptedException {
ApplicationHandler ah = createApplication(CustomThreadProvider.class, TestResource.class);
final ContainerResponse response = ah.apply(RequestContextBuilder.from("/executors-test", "GET").build()).get();
assertEquals(200, response.getStatus());
assertEquals("Some executor test assertions failed.", 11, response.getEntity());
}
}