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package org.glassfish.jersey.tests.e2e.server;
import java.io.IOException;
import java.io.InputStream;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.container.AsyncResponse;
import javax.ws.rs.container.ConnectionCallback;
import javax.ws.rs.container.Suspended;
import javax.ws.rs.core.Application;
import javax.ws.rs.core.Response;
import org.glassfish.jersey.server.ChunkedOutput;
import org.glassfish.jersey.server.ManagedAsync;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.test.JerseyTest;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
/**
* Tests {@link ConnectionCallback connection callback}.
*
* @author Miroslav Fuksa
*/
public class AsyncCallbackTest extends JerseyTest {
public static final AtomicBoolean onDisconnectCalled = new AtomicBoolean(false);
public static CountDownLatch streamClosedSignal;
public static CountDownLatch callbackCalledSignal;
@Path("resource")
public static class Resource {
@GET
@ManagedAsync
@Path("outputStream")
public void get(@Suspended final AsyncResponse asyncResponse) throws IOException, InterruptedException {
asyncResponse.register(MyConnectionCallback.class);
final InputStream is = new InputStream() {
private int counter = 0;
@Override
public int read() throws IOException {
return 65 + (++counter % 35);
}
};
asyncResponse.resume(is);
}
@GET
@ManagedAsync
@Path("chunked")
public void getChunkedOutput(@Suspended AsyncResponse asyncResponse) throws IOException, InterruptedException {
asyncResponse.register(MyConnectionCallback.class);
ChunkedOutput<String> chunkedOutput = new ChunkedOutput<String>(String.class);
asyncResponse.resume(chunkedOutput);
for (int i = 0; i < 50000; i++) {
chunkedOutput.write("something-");
}
}
}
public static class TestLatch extends CountDownLatch {
private final String name;
private final int multiplier;
public TestLatch(int count, String name, int multiplier) {
super(count);
this.name = name;
this.multiplier = multiplier;
}
@Override
public void countDown() {
super.countDown();
}
@Override
public void await() throws InterruptedException {
final boolean success = super.await(10 * multiplier, TimeUnit.SECONDS);
Assert.assertTrue(
Thread.currentThread().getName() + ": Latch [" + name + "] awaiting -> timeout!!!",
success);
}
}
@Before
public void setup() {
onDisconnectCalled.set(false);
streamClosedSignal = new TestLatch(1, "streamClosedSignal", getAsyncTimeoutMultiplier());
callbackCalledSignal = new TestLatch(1, "callbackCalledSignal", getAsyncTimeoutMultiplier());
}
@Override
protected Application configure() {
return new ResourceConfig(Resource.class);
}
@Test
public void testOutputStream() throws InterruptedException, IOException {
_testConnectionCallback("resource/outputStream");
}
@Test
public void testChunkedOutput() throws InterruptedException, IOException {
_testConnectionCallback("resource/chunked");
}
private void _testConnectionCallback(String path) throws IOException, InterruptedException {
final Response response = target().path(path).request().get();
final InputStream inputStream = response.readEntity(InputStream.class);
for (int i = 0; i < 500; i++) {
inputStream.read();
}
response.close();
streamClosedSignal.countDown();
callbackCalledSignal.await();
Assert.assertTrue(onDisconnectCalled.get());
}
public static class MyConnectionCallback implements ConnectionCallback {
@Override
public void onDisconnect(AsyncResponse disconnected) {
onDisconnectCalled.set(true);
callbackCalledSignal.countDown();
}
}
}