/*
* Copyright 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 org.springframework.integration.websocket.client;
import static org.hamcrest.Matchers.instanceOf;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertThat;
import java.util.Collections;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.integration.annotation.Poller;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.integration.annotation.Transformer;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.channel.QueueChannel;
import org.springframework.integration.config.EnableIntegration;
import org.springframework.integration.core.MessageProducer;
import org.springframework.integration.transformer.ObjectToStringTransformer;
import org.springframework.integration.websocket.ClientWebSocketContainer;
import org.springframework.integration.websocket.IntegrationWebSocketContainer;
import org.springframework.integration.websocket.TestServerConfig;
import org.springframework.integration.websocket.TomcatWebSocketTestServer;
import org.springframework.integration.websocket.inbound.WebSocketInboundChannelAdapter;
import org.springframework.integration.websocket.outbound.WebSocketOutboundMessageHandler;
import org.springframework.integration.websocket.support.SubProtocolHandlerRegistry;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessageHandler;
import org.springframework.messaging.simp.stomp.StompCommand;
import org.springframework.messaging.simp.stomp.StompHeaderAccessor;
import org.springframework.messaging.support.GenericMessage;
import org.springframework.stereotype.Component;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.web.socket.client.WebSocketClient;
import org.springframework.web.socket.client.standard.StandardWebSocketClient;
import org.springframework.web.socket.messaging.StompSubProtocolHandler;
import org.springframework.web.socket.messaging.SubProtocolHandler;
import org.springframework.web.socket.sockjs.client.SockJsClient;
import org.springframework.web.socket.sockjs.client.Transport;
import org.springframework.web.socket.sockjs.client.WebSocketTransport;
/**
* @author Artem Bilan
* @since 4.1
*/
@ContextConfiguration
@RunWith(SpringJUnit4ClassRunner.class)
@DirtiesContext
public class WebSocketClientTests {
@Autowired
@Qualifier("webSocketOutputChannel")
private MessageChannel webSocketOutputChannel;
@Autowired
@Qualifier("webSocketInputChannel")
private QueueChannel webSocketInputChannel;
@Test
public void testWebSocketOutboundMessageHandler() throws Exception {
this.webSocketOutputChannel.send(new GenericMessage<String>("Spring"));
Message<?> received = this.webSocketInputChannel.receive(10000);
assertNotNull(received);
StompHeaderAccessor stompHeaderAccessor = StompHeaderAccessor.wrap(received);
assertEquals(StompCommand.MESSAGE.getMessageType(), stompHeaderAccessor.getMessageType());
Object receivedPayload = received.getPayload();
assertThat(receivedPayload, instanceOf(String.class));
assertEquals("Hello Spring", receivedPayload);
}
@Configuration
@EnableIntegration
public static class ContextConfiguration {
@Bean
public TomcatWebSocketTestServer server() {
return new TomcatWebSocketTestServer(ServerFlowConfig.class);
}
@Bean
public WebSocketClient webSocketClient() {
return new SockJsClient(Collections.<Transport>singletonList(new WebSocketTransport(new StandardWebSocketClient())));
}
@Bean
public IntegrationWebSocketContainer clientWebSocketContainer() {
return new ClientWebSocketContainer(webSocketClient(), server().getWsBaseUrl() + "/ws");
}
@Bean
public SubProtocolHandler stompSubProtocolHandler() {
return new StompSubProtocolHandler();
}
@Bean
public MessageChannel webSocketInputChannel() {
return new QueueChannel();
}
@Bean
public MessageChannel webSocketOutputChannel() {
return new DirectChannel();
}
@Bean
public MessageProducer webSocketInboundChannelAdapter() {
WebSocketInboundChannelAdapter webSocketInboundChannelAdapter =
new WebSocketInboundChannelAdapter(clientWebSocketContainer(),
new SubProtocolHandlerRegistry(stompSubProtocolHandler()));
webSocketInboundChannelAdapter.setOutputChannel(webSocketInputChannel());
return webSocketInboundChannelAdapter;
}
@Bean
@ServiceActivator(inputChannel = "webSocketOutputChannel")
public MessageHandler webSocketOutboundMessageHandler() {
return new WebSocketOutboundMessageHandler(clientWebSocketContainer(),
new SubProtocolHandlerRegistry(stompSubProtocolHandler()));
}
}
// WebSocket Server part
@Configuration
@EnableIntegration
static class ServerFlowConfig extends TestServerConfig {
@Bean
@Transformer(inputChannel = "clientInboundChannel", outputChannel = "serviceChannel",
poller = @Poller(fixedDelay = "100", maxMessagesPerPoll = "1"))
public org.springframework.integration.transformer.Transformer objectToStringTransformer() {
return new ObjectToStringTransformer();
}
@Bean
public DirectChannel serviceChannel() {
return new DirectChannel();
}
@Bean
public TestService service() {
return new TestService();
}
@Component
public static class TestService {
@ServiceActivator(inputChannel = "serviceChannel", outputChannel = "clientOutboundChannel")
public byte[] handle(String payload) {
return ("Hello " + payload).getBytes();
}
}
}
}