| /* |
| * ==================================================================== |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.hc.client5.testing.async; |
| |
| import java.util.concurrent.Future; |
| |
| import org.apache.hc.client5.http.UserTokenHandler; |
| import org.apache.hc.client5.http.async.methods.SimpleHttpRequest; |
| import org.apache.hc.client5.http.async.methods.SimpleHttpResponse; |
| import org.apache.hc.client5.http.async.methods.SimpleRequestBuilder; |
| import org.apache.hc.client5.http.config.ConnectionConfig; |
| import org.apache.hc.client5.http.config.RequestConfig; |
| import org.apache.hc.client5.http.impl.async.CloseableHttpAsyncClient; |
| import org.apache.hc.client5.http.impl.async.HttpAsyncClientBuilder; |
| import org.apache.hc.client5.http.impl.nio.PoolingAsyncClientConnectionManager; |
| import org.apache.hc.client5.http.impl.nio.PoolingAsyncClientConnectionManagerBuilder; |
| import org.apache.hc.client5.http.protocol.HttpClientContext; |
| import org.apache.hc.client5.http.ssl.DefaultClientTlsStrategy; |
| import org.apache.hc.client5.testing.SSLTestContexts; |
| import org.apache.hc.core5.http.ContentType; |
| import org.apache.hc.core5.http.EndpointDetails; |
| import org.apache.hc.core5.http.HttpException; |
| import org.apache.hc.core5.http.HttpHost; |
| import org.apache.hc.core5.http.HttpResponse; |
| import org.apache.hc.core5.http.HttpStatus; |
| import org.apache.hc.core5.http.config.Http1Config; |
| import org.apache.hc.core5.http.protocol.BasicHttpContext; |
| import org.apache.hc.core5.http.protocol.HttpContext; |
| import org.apache.hc.core5.http.protocol.HttpCoreContext; |
| import org.apache.hc.core5.net.URIAuthority; |
| import org.junit.Assert; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExternalResource; |
| |
| public class TestHttp1AsyncStatefulConnManagement extends AbstractIntegrationTestBase<CloseableHttpAsyncClient> { |
| |
| protected HttpAsyncClientBuilder clientBuilder; |
| protected PoolingAsyncClientConnectionManager connManager; |
| |
| @Rule |
| public ExternalResource connManagerResource = new ExternalResource() { |
| |
| @Override |
| protected void before() throws Throwable { |
| connManager = PoolingAsyncClientConnectionManagerBuilder.create() |
| .setTlsStrategy(new DefaultClientTlsStrategy(SSLTestContexts.createClientSSLContext())) |
| .setDefaultConnectionConfig(ConnectionConfig.custom() |
| .setConnectTimeout(TIMEOUT) |
| .setSocketTimeout(TIMEOUT) |
| .build()) |
| .build(); |
| } |
| |
| @Override |
| protected void after() { |
| if (connManager != null) { |
| connManager.close(); |
| connManager = null; |
| } |
| } |
| |
| }; |
| |
| @Rule |
| public ExternalResource clientBuilderResource = new ExternalResource() { |
| |
| @Override |
| protected void before() throws Throwable { |
| clientBuilder = HttpAsyncClientBuilder.create() |
| .setDefaultRequestConfig(RequestConfig.custom() |
| .setConnectionRequestTimeout(TIMEOUT) |
| .build()) |
| .setConnectionManager(connManager); |
| } |
| |
| }; |
| |
| @Override |
| protected CloseableHttpAsyncClient createClient() throws Exception { |
| return clientBuilder.build(); |
| } |
| |
| @Override |
| public HttpHost start() throws Exception { |
| return super.start(null, Http1Config.DEFAULT); |
| } |
| |
| @Test |
| public void testStatefulConnections() throws Exception { |
| server.register("*", () -> new AbstractSimpleServerExchangeHandler() { |
| |
| @Override |
| protected SimpleHttpResponse handle( |
| final SimpleHttpRequest request, |
| final HttpCoreContext context) throws HttpException { |
| final SimpleHttpResponse response = new SimpleHttpResponse(HttpStatus.SC_OK); |
| response.setBody("Whatever", ContentType.TEXT_PLAIN); |
| return response; |
| } |
| }); |
| |
| final UserTokenHandler userTokenHandler = (route, context) -> context.getAttribute("user"); |
| clientBuilder.setUserTokenHandler(userTokenHandler); |
| final HttpHost target = start(); |
| |
| final int workerCount = 2; |
| final int requestCount = 5; |
| |
| final HttpContext[] contexts = new HttpContext[workerCount]; |
| final HttpWorker[] workers = new HttpWorker[workerCount]; |
| for (int i = 0; i < contexts.length; i++) { |
| final HttpClientContext context = HttpClientContext.create(); |
| contexts[i] = context; |
| workers[i] = new HttpWorker( |
| "user" + i, |
| context, requestCount, target, httpclient); |
| } |
| |
| for (final HttpWorker worker : workers) { |
| worker.start(); |
| } |
| for (final HttpWorker worker : workers) { |
| worker.join(LONG_TIMEOUT.toMilliseconds()); |
| } |
| for (final HttpWorker worker : workers) { |
| final Exception ex = worker.getException(); |
| if (ex != null) { |
| throw ex; |
| } |
| Assert.assertEquals(requestCount, worker.getCount()); |
| } |
| |
| for (final HttpContext context : contexts) { |
| final String state0 = (String) context.getAttribute("r0"); |
| Assert.assertNotNull(state0); |
| for (int r = 1; r < requestCount; r++) { |
| Assert.assertEquals(state0, context.getAttribute("r" + r)); |
| } |
| } |
| |
| } |
| |
| static class HttpWorker extends Thread { |
| |
| private final String uid; |
| private final HttpClientContext context; |
| private final int requestCount; |
| private final HttpHost target; |
| private final CloseableHttpAsyncClient httpclient; |
| |
| private volatile Exception exception; |
| private volatile int count; |
| |
| public HttpWorker( |
| final String uid, |
| final HttpClientContext context, |
| final int requestCount, |
| final HttpHost target, |
| final CloseableHttpAsyncClient httpclient) { |
| super(); |
| this.uid = uid; |
| this.context = context; |
| this.requestCount = requestCount; |
| this.target = target; |
| this.httpclient = httpclient; |
| this.count = 0; |
| } |
| |
| public int getCount() { |
| return count; |
| } |
| |
| public Exception getException() { |
| return exception; |
| } |
| |
| @Override |
| public void run() { |
| try { |
| context.setAttribute("user", uid); |
| for (int r = 0; r < requestCount; r++) { |
| final SimpleHttpRequest request = SimpleRequestBuilder.get() |
| .setHttpHost(target) |
| .setPath("/") |
| .build(); |
| final Future<SimpleHttpResponse> future = httpclient.execute(request, null); |
| future.get(); |
| |
| count++; |
| final EndpointDetails endpointDetails = context.getEndpointDetails(); |
| final String connuid = Integer.toHexString(System.identityHashCode(endpointDetails)); |
| context.setAttribute("r" + r, connuid); |
| } |
| |
| } catch (final Exception ex) { |
| exception = ex; |
| } |
| } |
| |
| } |
| |
| @Test |
| public void testRouteSpecificPoolRecylcing() throws Exception { |
| server.register("*", () -> new AbstractSimpleServerExchangeHandler() { |
| |
| @Override |
| protected SimpleHttpResponse handle( |
| final SimpleHttpRequest request, |
| final HttpCoreContext context) throws HttpException { |
| final SimpleHttpResponse response = new SimpleHttpResponse(HttpStatus.SC_OK); |
| response.setBody("Whatever", ContentType.TEXT_PLAIN); |
| return response; |
| } |
| }); |
| |
| // This tests what happens when a maxed connection pool needs |
| // to kill the last idle connection to a route to build a new |
| // one to the same route. |
| final UserTokenHandler userTokenHandler = (route, context) -> context.getAttribute("user"); |
| clientBuilder.setUserTokenHandler(userTokenHandler); |
| |
| final HttpHost target = start(); |
| final int maxConn = 2; |
| // We build a client with 2 max active // connections, and 2 max per route. |
| connManager.setMaxTotal(maxConn); |
| connManager.setDefaultMaxPerRoute(maxConn); |
| |
| // Bottom of the pool : a *keep alive* connection to Route 1. |
| final HttpContext context1 = new BasicHttpContext(); |
| context1.setAttribute("user", "stuff"); |
| |
| final SimpleHttpRequest request1 = SimpleRequestBuilder.get() |
| .setHttpHost(target) |
| .setPath("/") |
| .build(); |
| final Future<SimpleHttpResponse> future1 = httpclient.execute(request1, context1, null); |
| final HttpResponse response1 = future1.get(); |
| Assert.assertNotNull(response1); |
| Assert.assertEquals(200, response1.getCode()); |
| |
| // The ConnPoolByRoute now has 1 free connection, out of 2 max |
| // The ConnPoolByRoute has one RouteSpcfcPool, that has one free connection |
| // for [localhost][stuff] |
| |
| Thread.sleep(100); |
| |
| // Send a very simple HTTP get (it MUST be simple, no auth, no proxy, no 302, no 401, ...) |
| // Send it to another route. Must be a keepalive. |
| final HttpContext context2 = new BasicHttpContext(); |
| |
| final SimpleHttpRequest request2 = SimpleRequestBuilder.get() |
| .setScheme(target.getSchemeName()) |
| .setAuthority(new URIAuthority("127.0.0.1", target.getPort())) |
| .setPath("/") |
| .build(); |
| final Future<SimpleHttpResponse> future2 = httpclient.execute(request2, context2, null); |
| final HttpResponse response2 = future2.get(); |
| Assert.assertNotNull(response2); |
| Assert.assertEquals(200, response2.getCode()); |
| |
| // ConnPoolByRoute now has 2 free connexions, out of its 2 max. |
| // The [localhost][stuff] RouteSpcfcPool is the same as earlier |
| // And there is a [127.0.0.1][null] pool with 1 free connection |
| |
| Thread.sleep(100); |
| |
| // This will put the ConnPoolByRoute to the targeted state : |
| // [localhost][stuff] will not get reused because this call is [localhost][null] |
| // So the ConnPoolByRoute will need to kill one connection (it is maxed out globally). |
| // The killed conn is the oldest, which means the first HTTPGet ([localhost][stuff]). |
| // When this happens, the RouteSpecificPool becomes empty. |
| final HttpContext context3 = new BasicHttpContext(); |
| |
| final SimpleHttpRequest request3 = SimpleRequestBuilder.get() |
| .setHttpHost(target) |
| .setPath("/") |
| .build(); |
| final Future<SimpleHttpResponse> future3 = httpclient.execute(request3, context3, null); |
| final HttpResponse response3 = future3.get(); |
| Assert.assertNotNull(response3); |
| Assert.assertEquals(200, response3.getCode()); |
| } |
| |
| } |