httpasyncclient/src/test/java/org/apache/http/nio/client/integration/TestHttpAsyncClientUtils.java

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 * 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
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 *   http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
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 * KIND, either express or implied.  See the License for the
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 * under the License.
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 * This software consists of voluntary contributions made by many
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package org.apache.http.nio.client.integration;

import java.net.InetSocketAddress;
import java.util.concurrent.Future;

import org.apache.http.HttpAsyncTestBase;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.config.ConnectionConfig;
import org.apache.http.impl.DefaultConnectionReuseStrategy;
import org.apache.http.impl.DefaultHttpResponseFactory;
import org.apache.http.impl.nio.DefaultNHttpServerConnection;
import org.apache.http.impl.nio.DefaultNHttpServerConnectionFactory;
import org.apache.http.impl.nio.client.HttpAsyncClients;
import org.apache.http.localserver.EchoHandler;
import org.apache.http.localserver.RandomHandler;
import org.apache.http.nio.NHttpConnectionFactory;
import org.apache.http.nio.client.util.HttpAsyncClientUtils;
import org.apache.http.nio.protocol.BasicAsyncRequestHandler;
import org.apache.http.nio.protocol.HttpAsyncExpectationVerifier;
import org.apache.http.nio.protocol.HttpAsyncRequestHandlerMapper;
import org.apache.http.nio.protocol.HttpAsyncService;
import org.apache.http.nio.protocol.UriHttpAsyncRequestHandlerMapper;
import org.apache.http.nio.reactor.IOReactorStatus;
import org.apache.http.nio.reactor.ListenerEndpoint;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

public class TestHttpAsyncClientUtils extends HttpAsyncTestBase {

    @Before
    public void setUp() throws Exception {
        initServer();
        initConnectionManager();
    }

    @After
    public void tearDown() throws Exception {
        shutDownClient();
        shutDownServer();
    }

    @Override
    protected NHttpConnectionFactory<DefaultNHttpServerConnection> createServerConnectionFactory(
            final ConnectionConfig config) throws Exception {
        return new DefaultNHttpServerConnectionFactory(config);
    }

    @Override
    protected String getSchemeName() {
        return "http";
    }

    @Test
    public void testAsync() throws Exception {
        final HttpHost target = start();
        final HttpGet httpget = new HttpGet("/random/2048");
        final Future<HttpResponse> future = this.httpclient.execute(target, httpget, null);
        final HttpResponse response = future.get();
        Assert.assertNotNull(response);
        Assert.assertEquals(200, response.getStatusLine().getStatusCode());

        HttpAsyncClientUtils.closeQuietly(this.httpclient);
        // Close it twice
        HttpAsyncClientUtils.closeQuietly(this.httpclient);
    }

    private HttpHost start() throws Exception {
        final UriHttpAsyncRequestHandlerMapper registry = new UriHttpAsyncRequestHandlerMapper();
        registry.register("/echo/*", new BasicAsyncRequestHandler(new EchoHandler()));
        registry.register("/random/*", new BasicAsyncRequestHandler(new RandomHandler()));
        return start(registry, null);
    }

    private HttpHost start(final HttpAsyncRequestHandlerMapper requestHandlerResolver,
            final HttpAsyncExpectationVerifier expectationVerifier) throws Exception {
        final HttpAsyncService serviceHandler = new HttpAsyncService(
                this.serverHttpProc,
                DefaultConnectionReuseStrategy.INSTANCE,
                DefaultHttpResponseFactory.INSTANCE,
                requestHandlerResolver,
                expectationVerifier);

        this.httpclient = HttpAsyncClients.custom()
                .setConnectionManager(this.connMgr)
                .build();

        this.server.start(serviceHandler);
        this.httpclient.start();

        final ListenerEndpoint endpoint = this.server.getListenerEndpoint();
        endpoint.waitFor();

        Assert.assertEquals("Test server status", IOReactorStatus.ACTIVE, this.server.getStatus());
        final InetSocketAddress address = (InetSocketAddress) endpoint.getAddress();
        return new HttpHost("localhost", address.getPort(), getSchemeName());
    }

}