/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.undertow.servlet.test.request;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import javax.servlet.ServletException;
import io.undertow.servlet.api.ServletInfo;
import io.undertow.servlet.test.util.DeploymentUtils;
import io.undertow.testutils.DefaultServer;
import io.undertow.testutils.HttpClientUtils;
import io.undertow.testutils.TestHttpClient;
import io.undertow.util.StatusCodes;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;
/**
* @author Stuart Douglas
*/
@RunWith(DefaultServer.class)
public class ExecutorPerServletTestCase {
private static ExecutorService executorService;
public static final int NUM_THREADS = 10;
public static final int NUM_REQUESTS = 100;
@BeforeClass
public static void setup() throws ServletException {
DeploymentUtils.setupServlet(
new ServletInfo("racey", RaceyAddServlet.class)
.addMapping("/racey"),
new ServletInfo("single", RaceyAddServlet.class)
.addMapping("/single")
.setExecutor(executorService = Executors.newSingleThreadExecutor()));
}
@AfterClass
public static void after() {
executorService.shutdown();
}
@Test
@Ignore("This won't pass every run, but on most machines it should pass consistently")
public void testRaceyServlet() throws InterruptedException, ExecutionException, IOException {
Assert.assertNotEquals(NUM_REQUESTS * NUM_THREADS, runTest("/racey"));
}
@Test
public void testSingleThreadExecutor() throws InterruptedException, ExecutionException, IOException {
Assert.assertEquals(NUM_REQUESTS * NUM_THREADS, runTest("/single"));
}
public int runTest(final String path) throws IOException, ExecutionException, InterruptedException {
ExecutorService executor = Executors.newFixedThreadPool(NUM_THREADS);
try {
final List<Future<?>> futures = new ArrayList<>();
for (int i = 0; i < NUM_THREADS; ++i) {
futures.add(executor.submit(new Runnable() {
@Override
public void run() {
TestHttpClient client = new TestHttpClient();
try {
for (int i = 0; i < NUM_REQUESTS; ++i) {
HttpGet get = new HttpGet(DefaultServer.getDefaultServerURL() + "/servletContext" + path);
HttpResponse result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
final String response = HttpClientUtils.readResponse(result);
}
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
client.getConnectionManager().shutdown();
}
}
}));
}
for (Future<?> future : futures) {
future.get();
}
TestHttpClient client = new TestHttpClient();
try {
HttpGet get = new HttpGet(DefaultServer.getDefaultServerURL() + "/servletContext" + path);
HttpResponse result = client.execute(get);
Assert.assertEquals(StatusCodes.OK, result.getStatusLine().getStatusCode());
return Integer.parseInt(HttpClientUtils.readResponse(result));
} finally {
client.getConnectionManager().shutdown();
}
} finally {
executor.shutdown();
}
}
}