/*
* Copyright (c) 2016 Network New Technologies Inc.
*
* 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 com.networknt.limit;
import com.networknt.utility.Constants;
import io.undertow.Handlers;
import io.undertow.Undertow;
import io.undertow.server.HttpHandler;
import io.undertow.server.RoutingHandler;
import io.undertow.util.Methods;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.junit.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
/**
* Created by steve on 23/09/16.
*/
public class LimitHandlerTest {
static final Logger logger = LoggerFactory.getLogger(LimitHandlerTest.class);
static Undertow server = null;
@BeforeClass
public static void setUp() {
if(server == null) {
logger.info("starting server");
HttpHandler handler = getTestHandler();
LimitHandler limitHandler = new LimitHandler();
limitHandler.setNext(handler);
handler = limitHandler;
server = Undertow.builder()
.addHttpListener(8080, "localhost")
.setHandler(handler)
.build();
server.start();
}
}
@AfterClass
public static void tearDown() throws Exception {
if(server != null) {
try {
Thread.sleep(100);
} catch (InterruptedException ignored) {
}
server.stop();
logger.info("The server is stopped.");
}
}
static RoutingHandler getTestHandler() {
return Handlers.routing()
.add(Methods.GET, "/", exchange -> {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
}
exchange.getResponseSender().send("OK");
});
}
@Test
public void testOneRequest() throws Exception {
String url = "http://localhost:8080";
CloseableHttpClient client = HttpClients.createDefault();
HttpGet httpGet = new HttpGet(url);
try {
CloseableHttpResponse response = client.execute(httpGet);
int statusCode = response.getStatusLine().getStatusCode();
String body = IOUtils.toString(response.getEntity().getContent(), "utf8");
Assert.assertEquals(200, statusCode);
if(statusCode == 200) {
Assert.assertNotNull(body);
Assert.assertEquals("OK", body);
}
} catch (Exception e) {
e.printStackTrace();
}
}
public String callApi() throws Exception {
String url = "http://localhost:8080";
CloseableHttpClient client = HttpClients.createDefault();
HttpGet httpGet = new HttpGet(url);
ResponseHandler<String> responseHandler = response -> {
int statusCode = response.getStatusLine().getStatusCode();
String body = IOUtils.toString(response.getEntity().getContent(), "utf8");
return body + ":" + statusCode;
};
String response = "";
try {
response = client.execute(httpGet, responseHandler);
logger.debug("response = " + response);
} catch (Exception e) {
e.printStackTrace();
}
return response;
}
@Test
public void testMoreRequests() throws Exception {
Callable<String> task = this::callApi;
List<Callable<String>> tasks = Collections.nCopies(10, task);
long start = System.currentTimeMillis();
ExecutorService executorService = Executors.newFixedThreadPool(10);
List<Future<String>> futures = executorService.invokeAll(tasks);
List<String> resultList = new ArrayList<>(futures.size());
// Check for exceptions
for (Future<String> future : futures) {
// Throws an exception if an exception was thrown by the task.
resultList.add(future.get());
}
long last = (System.currentTimeMillis() - start);
// make sure that there are at least one element in resultList is :513
Assert.assertTrue(resultList.contains(":513"));
System.out.println("resultList = " + resultList + " response time = " + last);
}
}