EventPipelineTest.java

/*
 * Copyright (c) 2010-2012 Sonatype, Inc. All rights reserved.
 *
 * This program is licensed to you under the Apache License Version 2.0,
 * and you may not use this file except in compliance with the Apache License Version 2.0.
 * You may obtain a copy of the Apache License Version 2.0 at http://www.apache.org/licenses/LICENSE-2.0.
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the Apache License Version 2.0 is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Apache License Version 2.0 for the specific language governing permissions and limitations there under.
 */
package org.asynchttpclient.netty;

import io.github.artsok.RepeatedIfExceptionsTest;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.handler.codec.http.HttpMessage;
import org.asynchttpclient.AbstractBasicTest;
import org.asynchttpclient.AsyncHttpClient;
import org.asynchttpclient.Response;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;

import static org.asynchttpclient.Dsl.asyncHttpClient;
import static org.asynchttpclient.Dsl.config;
import static org.asynchttpclient.Dsl.get;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

public class EventPipelineTest extends AbstractBasicTest {

    @RepeatedIfExceptionsTest(repeats = 5)
    public void asyncPipelineTest() throws Exception {
        Consumer<Channel> httpAdditionalPipelineInitializer = channel -> channel.pipeline()
                .addBefore("inflater", "copyEncodingHeader", new CopyEncodingHandler());

        try (AsyncHttpClient client = asyncHttpClient(config().setHttpAdditionalChannelInitializer(httpAdditionalPipelineInitializer))) {
            final CountDownLatch latch = new CountDownLatch(1);
            client.executeRequest(get(getTargetUrl()), new AsyncCompletionHandlerAdapter() {
                @Override
                public Response onCompleted(Response response) {
                    try {
                        assertEquals(200, response.getStatusCode());
                        assertEquals("<original encoding>", response.getHeader("X-Original-Content-Encoding"));
                    } finally {
                        latch.countDown();
                    }
                    return response;
                }
            }).get();
            assertTrue(latch.await(TIMEOUT, TimeUnit.SECONDS));
        }
    }

    private static class CopyEncodingHandler extends ChannelInboundHandlerAdapter {
        @Override
        public void channelRead(ChannelHandlerContext ctx, Object e) {
            if (e instanceof HttpMessage) {
                HttpMessage m = (HttpMessage) e;
                // for test there is no Content-Encoding header so just hard
                // coding value
                // for verification
                m.headers().set("X-Original-Content-Encoding", "<original encoding>");
            }
            ctx.fireChannelRead(e);
        }
    }
}