AsyncResourceTest.java
/*
* Copyright (c) 2010, 2022 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.glassfish.jersey.examples.server.async;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import org.glassfish.jersey.internal.guava.ThreadFactoryBuilder;
import org.glassfish.jersey.process.JerseyProcessingUncaughtExceptionHandler;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.test.JerseyTest;
import org.glassfish.jersey.test.TestProperties;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.fail;
public class AsyncResourceTest extends JerseyTest {
private static final Logger LOGGER = Logger.getLogger(AsyncResourceTest.class.getName());
@Override
protected ResourceConfig configure() {
// mvn test -Djersey.config.test.container.factory=org.glassfish.jersey.test.inmemory.InMemoryTestContainerFactory
// mvn test -Djersey.config.test.container.factory=org.glassfish.jersey.test.grizzly.GrizzlyTestContainerFactory
enable(TestProperties.LOG_TRAFFIC);
enable(TestProperties.DUMP_ENTITY);
return App.create();
}
@Test
public void testFireAndForgetChatResource() throws InterruptedException {
executeChatTest(target().path(App.ASYNC_MESSAGING_FIRE_N_FORGET_PATH),
FireAndForgetChatResource.POST_NOTIFICATION_RESPONSE);
}
@Test
public void testBlockingPostChatResource() throws InterruptedException {
executeChatTest(target().path(App.ASYNC_MESSAGING_BLOCKING_PATH), BlockingPostChatResource.POST_NOTIFICATION_RESPONSE);
}
private void executeChatTest(final WebTarget resourceTarget, final String expectedPostResponse) throws InterruptedException {
final int MAX_MESSAGES = 100;
final int LATCH_WAIT_TIMEOUT = 10 * getAsyncTimeoutMultiplier();
final boolean debugMode = false;
final boolean sequentialGet = false;
final boolean sequentialPost = false;
final Object sequentialGetLock = new Object();
final Object sequentialPostLock = new Object();
final ExecutorService executor = Executors.newCachedThreadPool(new ThreadFactoryBuilder()
.setNameFormat("async-resource-test-%02d")
.setUncaughtExceptionHandler(new JerseyProcessingUncaughtExceptionHandler())
.build());
final Map<Integer, String> postResponses = new ConcurrentHashMap<Integer, String>();
final Map<Integer, String> getResponses = new ConcurrentHashMap<Integer, String>();
final CountDownLatch postRequestLatch = new CountDownLatch(MAX_MESSAGES);
final CountDownLatch getRequestLatch = new CountDownLatch(MAX_MESSAGES);
try {
for (int i = 0; i < MAX_MESSAGES; i++) {
final int requestId = i;
executor.submit(new Runnable() {
@Override
public void run() {
if (debugMode || sequentialPost) {
synchronized (sequentialPostLock) {
post();
}
} else {
post();
}
}
private void post() {
try {
int attemptCounter = 0;
while (true) {
attemptCounter++;
try {
final String response = resourceTarget.request()
.post(Entity.text(String.format("%02d", requestId)), String.class);
postResponses.put(requestId, response);
break;
} catch (Throwable t) {
LOGGER.log(Level.WARNING, String.format("Error POSTING message <%s> for %d. time.",
requestId, attemptCounter), t);
}
if (attemptCounter > 3) {
break;
}
Thread.sleep(10);
}
} catch (InterruptedException ignored) {
LOGGER.log(Level.WARNING,
String.format("Error POSTING message <%s>: Interrupted", requestId), ignored);
} finally {
postRequestLatch.countDown();
}
}
});
executor.submit(new Runnable() {
@Override
public void run() {
if (debugMode || sequentialGet) {
synchronized (sequentialGetLock) {
get();
}
} else {
get();
}
}
private void get() {
try {
int attemptCounter = 0;
while (true) {
attemptCounter++;
try {
final String response = resourceTarget.queryParam("id", requestId).request()
.get(String.class);
getResponses.put(requestId, response);
break;
} catch (Throwable t) {
LOGGER.log(Level.SEVERE, String.format("Error sending GET request <%s> for %d. time.",
requestId, attemptCounter), t);
}
if (attemptCounter > 3) {
break;
}
Thread.sleep(10);
}
} catch (InterruptedException ignored) {
LOGGER.log(Level.WARNING,
String.format("Error sending GET message <%s>: Interrupted", requestId), ignored);
} finally {
getRequestLatch.countDown();
}
}
});
}
if (debugMode) {
postRequestLatch.await();
getRequestLatch.await();
} else {
if (!postRequestLatch.await(LATCH_WAIT_TIMEOUT, TimeUnit.SECONDS)) {
LOGGER.log(Level.SEVERE, "Waiting for all POST requests to complete has timed out.");
}
if (!getRequestLatch.await(LATCH_WAIT_TIMEOUT, TimeUnit.SECONDS)) {
LOGGER.log(Level.SEVERE, "Waiting for all GET requests to complete has timed out.");
}
}
} finally {
executor.shutdownNow();
}
StringBuilder messageBuilder = new StringBuilder("POST responses received: ").append(postResponses.size()).append("\n");
for (Map.Entry<Integer, String> postResponseEntry : postResponses.entrySet()) {
messageBuilder.append(String.format("POST response for message %02d: ", postResponseEntry.getKey()))
.append(postResponseEntry.getValue()).append('\n');
}
messageBuilder.append('\n');
messageBuilder.append("GET responses received: ").append(getResponses.size()).append("\n");
for (Map.Entry<Integer, String> getResponseEntry : getResponses.entrySet()) {
messageBuilder.append(String.format("GET response for message %02d: ", getResponseEntry.getKey()))
.append(getResponseEntry.getValue()).append('\n');
}
LOGGER.info(messageBuilder.toString());
for (Map.Entry<Integer, String> postResponseEntry : postResponses.entrySet()) {
assertEquals(expectedPostResponse, postResponseEntry.getValue(),
String.format("Unexpected POST notification response for message %02d", postResponseEntry.getKey()));
}
final List<Integer> lost = new LinkedList<Integer>();
final Collection<String> getResponseValues = getResponses.values();
for (int i = 0; i < MAX_MESSAGES; i++) {
if (!getResponseValues.contains(String.format("%02d", i))) {
lost.add(i);
}
}
if (!lost.isEmpty()) {
fail("Detected a posted message loss(es): " + lost.toString());
}
assertEquals(MAX_MESSAGES, postResponses.size());
assertEquals(MAX_MESSAGES, getResponses.size());
}
@Test
public void testLongRunningResource() throws InterruptedException {
final WebTarget resourceTarget = target().path(App.ASYNC_LONG_RUNNING_OP_PATH);
final String expectedResponse = SimpleLongRunningResource.NOTIFICATION_RESPONSE;
final int MAX_MESSAGES = 100;
final int LATCH_WAIT_TIMEOUT = 25 * getAsyncTimeoutMultiplier();
final boolean debugMode = false;
final boolean sequentialGet = false;
final Object sequentialGetLock = new Object();
final ExecutorService executor = Executors.newCachedThreadPool(new ThreadFactoryBuilder()
.setNameFormat("async-resource-test-%02d")
.setUncaughtExceptionHandler(new JerseyProcessingUncaughtExceptionHandler())
.build());
final Map<Integer, String> getResponses = new ConcurrentHashMap<Integer, String>();
final CountDownLatch getRequestLatch = new CountDownLatch(MAX_MESSAGES);
try {
for (int i = 0; i < MAX_MESSAGES; i++) {
final int requestId = i;
executor.submit(new Runnable() {
@Override
public void run() {
if (debugMode || sequentialGet) {
synchronized (sequentialGetLock) {
get();
}
} else {
get();
}
}
private void get() {
try {
int attemptCounter = 0;
while (true) {
attemptCounter++;
try {
final String response = resourceTarget.request().get(String.class);
getResponses.put(requestId, response);
break;
} catch (Throwable t) {
LOGGER.log(Level.SEVERE, String.format("Error sending GET request <%s> for %d. time.",
requestId, attemptCounter), t);
}
if (attemptCounter > 3) {
break;
}
Thread.sleep(10);
}
} catch (InterruptedException ignored) {
LOGGER.log(Level.WARNING,
String.format("Error sending GET message <%s>: Interrupted", requestId), ignored);
} finally {
getRequestLatch.countDown();
}
}
});
}
if (debugMode) {
getRequestLatch.await();
} else {
if (!getRequestLatch.await(LATCH_WAIT_TIMEOUT, TimeUnit.SECONDS)) {
LOGGER.log(Level.SEVERE, "Waiting for all GET requests to complete has timed out.");
}
}
} finally {
executor.shutdownNow();
}
final ArrayList<Map.Entry<Integer, String>> responseEntryList =
new ArrayList<Map.Entry<Integer, String>>(getResponses.entrySet());
Collections.sort(responseEntryList,
new Comparator<Map.Entry<Integer, String>>() {
@Override
public int compare(Map.Entry<Integer, String> o1, Map.Entry<Integer, String> o2) {
return o1.getKey().compareTo(o2.getKey());
}
});
StringBuilder messageBuilder = new StringBuilder("GET responses received: ").append(responseEntryList.size())
.append("\n");
for (Map.Entry<Integer, String> getResponseEntry : responseEntryList) {
messageBuilder.append(String.format("GET response for message %02d: ", getResponseEntry.getKey()))
.append(getResponseEntry.getValue()).append('\n');
}
LOGGER.info(messageBuilder.toString());
for (Map.Entry<Integer, String> entry : responseEntryList) {
assertEquals(expectedResponse, entry.getValue(),
String.format("Unexpected GET notification response for message %02d", entry.getKey()));
}
assertEquals(MAX_MESSAGES, getResponses.size());
}
}