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package org.glassfish.jersey.examples.server.async.managed;
import java.util.Collection;
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 javax.ws.rs.core.Response;
import org.glassfish.jersey.client.ClientConfig;
import org.glassfish.jersey.jackson.JacksonFeature;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.test.JerseyTest;
import org.glassfish.jersey.test.TestProperties;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import jersey.repackaged.com.google.common.util.concurrent.ThreadFactoryBuilder;
/**
* Test for the asynchronous managed resources example.
*
* @author Marek Potociar (marek.potociar at oracle.com)
*/
public class ManagedAsyncResourceTest extends JerseyTest {
private static final Logger LOGGER = Logger.getLogger(ManagedAsyncResourceTest.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
// mvn test -Djersey.config.test.container.factory=org.glassfish.jersey.test.external.ExternalTestContainerFactory
enable(TestProperties.LOG_TRAFFIC);
enable(TestProperties.DUMP_ENTITY);
return App.create();
}
@Override
protected void configureClient(ClientConfig config) {
config.register(new JacksonFeature());
}
@Test
public void testLongRunningResource() throws InterruptedException {
final WebTarget resourceTarget = target().path(App.ASYNC_LONG_RUNNING_MANAGED_OP_PATH);
final String expectedResponse = SimpleJerseyExecutorManagedLongRunningResource.NOTIFICATION_RESPONSE;
final int MAX_MESSAGES = 100;
final int LATCH_WAIT_TIMEOUT = 10 * 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-%d").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.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) {
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();
}
StringBuilder messageBuilder = new StringBuilder("GET responses received: ").append(getResponses.size()).append("\n");
for (Map.Entry<Integer, String> getResponseEntry : getResponses.entrySet()) {
messageBuilder.append("GET response for message ")
.append(getResponseEntry.getKey()).append(": ")
.append(getResponseEntry.getValue()).append('\n');
}
LOGGER.info(messageBuilder.toString());
for (Map.Entry<Integer, String> entry : getResponses.entrySet()) {
assertTrue(
"Unexpected GET notification response for message " + entry.getKey(),
entry.getValue().contains(expectedResponse));
}
assertEquals(MAX_MESSAGES, getResponses.size());
}
@Test
public void testChatResource() throws InterruptedException {
final WebTarget resourceTarget = target().path("chat");
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-%d").build());
final Map<Integer, Integer> postResponses = new ConcurrentHashMap<Integer, Integer>();
final Map<Integer, Message> getResponses = new ConcurrentHashMap<Integer, Message>();
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 Response response = resourceTarget.request()
.post(Entity.json(new Message("" + requestId, "" + requestId)));
postResponses.put(requestId, response.getStatus());
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 Message response = resourceTarget.request("application/json").get(Message.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, Integer> postResponseEntry : postResponses.entrySet()) {
messageBuilder.append("POST response for message ")
.append(postResponseEntry.getKey()).append(": ")
.append(postResponseEntry.getValue()).append('\n');
}
messageBuilder.append('\n');
messageBuilder.append("GET responses received: ").append(getResponses.size()).append("\n");
for (Map.Entry<Integer, Message> getResponseEntry : getResponses.entrySet()) {
messageBuilder.append("GET response for message ")
.append(getResponseEntry.getKey()).append(": ")
.append(getResponseEntry.getValue()).append('\n');
}
LOGGER.info(messageBuilder.toString());
for (Map.Entry<Integer, Integer> postResponseEntry : postResponses.entrySet()) {
assertEquals(
"Unexpected POST notification response for message " + postResponseEntry.getKey(),
200, postResponseEntry.getValue().intValue());
}
final List<Integer> lost = new LinkedList<Integer>();
final Collection<Message> getResponseValues = getResponses.values();
for (int i = 0; i < MAX_MESSAGES; i++) {
if (!getResponseValues.contains(new Message("" + i, "" + 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());
}
}