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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.core;
import com.google.inject.AbstractModule;
import com.yahoo.jdisc.Request;
import com.yahoo.jdisc.Response;
import com.yahoo.jdisc.application.Application;
import com.yahoo.jdisc.application.ContainerBuilder;
import com.yahoo.jdisc.handler.AbstractRequestHandler;
import com.yahoo.jdisc.handler.CompletionHandler;
import com.yahoo.jdisc.handler.ContentChannel;
import com.yahoo.jdisc.handler.ResponseHandler;
import com.yahoo.jdisc.test.NonWorkingOsgiFramework;
import org.junit.jupiter.api.Test;
import java.net.URI;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
/**
* @author Simon Thoresen Hult
*/
public class ApplicationRestartTestCase {
@Test
void requireThatStopStartDoesNotBreakShutdown() throws Exception {
ApplicationLoader loader = newApplicationLoader();
loader.init(null, false);
loader.start();
assertGracefulStop(loader);
loader.start();
assertGracefulStop(loader);
loader.destroy();
}
@Test
void requireThatDestroyInitDoesNotBreakShutdown() throws Exception {
ApplicationLoader loader = newApplicationLoader();
loader.init(null, false);
loader.start();
assertGracefulStop(loader);
loader.destroy();
loader.init(null, false);
loader.start();
assertGracefulStop(loader);
loader.destroy();
}
private static ApplicationLoader newApplicationLoader() {
return new ApplicationLoader(new NonWorkingOsgiFramework(),
Arrays.asList(new AbstractModule() {
@Override
public void configure() {
bind(Application.class).to(SimpleApplication.class);
}
}));
}
private static void assertGracefulStop(ApplicationLoader loader) throws Exception {
MyRequestHandler requestHandler = new MyRequestHandler();
ContainerBuilder builder = loader.newContainerBuilder();
builder.serverBindings().bind("http://host/path", requestHandler);
loader.activateContainer(builder);
MyResponseHandler responseHandler = new MyResponseHandler();
Request request = new Request(loader, URI.create("http://host/path"));
request.connect(responseHandler).close(null);
request.release();
StopTask task = new StopTask(loader);
task.start();
assertFalse(task.latch.await(100, TimeUnit.MILLISECONDS));
requestHandler.responseHandler.handleResponse(new Response(Response.Status.OK)).close(null);
assertTrue(task.latch.await(600, TimeUnit.SECONDS));
}
private static class StopTask extends Thread {
final ApplicationLoader loader;
final CountDownLatch latch = new CountDownLatch(1);
StopTask(ApplicationLoader loader) {
this.loader = loader;
}
@Override
public void run() {
try {
loader.stop();
} catch (Exception e) {
e.printStackTrace();
return;
}
latch.countDown();
}
}
private static class SimpleApplication implements Application {
@Override
public void start() {
}
@Override
public void stop() {
}
@Override
public void destroy() {
}
}
private static class MyRequestHandler extends AbstractRequestHandler {
ResponseHandler responseHandler;
@Override
public ContentChannel handleRequest(Request request, ResponseHandler handler) {
this.responseHandler = handler;
return new MyContentChannel();
}
}
private static class MyResponseHandler implements ResponseHandler {
@Override
public ContentChannel handleResponse(Response response) {
return new MyContentChannel();
}
}
private static class MyContentChannel implements ContentChannel {
@Override
public void write(ByteBuffer buf, CompletionHandler handler) {
handler.completed();
}
@Override
public void close(CompletionHandler handler) {
handler.completed();
}
}
}
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