com.gaodashang.demo.echo.CustomContainerWebSocketsApplicationTests.java Source code

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Here is the source code for com.gaodashang.demo.echo.CustomContainerWebSocketsApplicationTests.java

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/*
 * Copyright 2012-2014 the original author or authors.
 *
 * 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.gaodashang.demo.echo;

import com.gaodashang.demo.MainApplicationConfiguration;
import com.gaodashang.demo.client.GreetingService;
import com.gaodashang.demo.client.SimpleClientWebSocketHandler;
import com.gaodashang.demo.client.SimpleGreetingService;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.autoconfigure.PropertyPlaceholderAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.embedded.EmbeddedServletContainerFactory;
import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
import org.springframework.boot.test.IntegrationTest;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.util.SocketUtils;
import org.springframework.web.socket.client.WebSocketConnectionManager;
import org.springframework.web.socket.client.standard.StandardWebSocketClient;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;

import static org.junit.Assert.assertEquals;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = { MainApplicationConfiguration.class,
        CustomContainerWebSocketsApplicationTests.CustomContainerConfiguration.class })
@WebAppConfiguration
@IntegrationTest
@DirtiesContext
public class CustomContainerWebSocketsApplicationTests {

    private static Log logger = LogFactory.getLog(CustomContainerWebSocketsApplicationTests.class);

    private static int PORT = SocketUtils.findAvailableTcpPort();

    @Test
    public void echoEndpoint() throws Exception {
        ConfigurableApplicationContext context = new SpringApplicationBuilder(ClientConfiguration.class,
                PropertyPlaceholderAutoConfiguration.class)
                        .properties("websocket.uri:ws://localhost:" + PORT + "/ws/echo/websocket")
                        .run("--spring.main.web_environment=false");
        long count = context.getBean(ClientConfiguration.class).latch.getCount();
        AtomicReference<String> messagePayloadReference = context.getBean(ClientConfiguration.class).messagePayload;
        context.close();
        assertEquals(0, count);
        assertEquals("Did you say \"Hello world!\"?", messagePayloadReference.get());
    }

    @Test
    public void reverseEndpoint() throws Exception {
        ConfigurableApplicationContext context = new SpringApplicationBuilder(ClientConfiguration.class,
                PropertyPlaceholderAutoConfiguration.class)
                        .properties("websocket.uri:ws://localhost:" + PORT + "/ws/reverse")
                        .run("--spring.main.web_environment=false");
        long count = context.getBean(ClientConfiguration.class).latch.getCount();
        AtomicReference<String> messagePayloadReference = context.getBean(ClientConfiguration.class).messagePayload;
        context.close();
        assertEquals(0, count);
        assertEquals("Reversed: !dlrow olleH", messagePayloadReference.get());
    }

    @Configuration
    protected static class CustomContainerConfiguration {

        @Bean
        public EmbeddedServletContainerFactory embeddedServletContainerFactory() {
            return new TomcatEmbeddedServletContainerFactory("/ws", PORT);
        }

    }

    @Configuration
    static class ClientConfiguration implements CommandLineRunner {

        @Value("${websocket.uri}")
        private String webSocketUri;

        private final CountDownLatch latch = new CountDownLatch(1);

        private final AtomicReference<String> messagePayload = new AtomicReference<String>();

        @Override
        public void run(String... args) throws Exception {
            logger.info("Waiting for response: latch=" + this.latch.getCount());
            if (this.latch.await(10, TimeUnit.SECONDS)) {
                logger.info("Got response: " + this.messagePayload.get());
            } else {
                logger.info("Response not received: latch=" + this.latch.getCount());
            }
        }

        @Bean
        public WebSocketConnectionManager wsConnectionManager() {

            WebSocketConnectionManager manager = new WebSocketConnectionManager(client(), handler(),
                    this.webSocketUri);
            manager.setAutoStartup(true);

            return manager;
        }

        @Bean
        public StandardWebSocketClient client() {
            return new StandardWebSocketClient();
        }

        @Bean
        public SimpleClientWebSocketHandler handler() {
            return new SimpleClientWebSocketHandler(greetingService(), this.latch, this.messagePayload);
        }

        @Bean
        public GreetingService greetingService() {
            return new SimpleGreetingService();
        }

    }

}