单元测试来说明如何设置用户队列中的消息过期。
需要tomcat-embedded、spring-messaging和active-mq
import org.apache.catalina.Context;
import org.apache.catalina.Wrapper;
import org.apache.catalina.connector.Connector;
import org.apache.catalina.startup.Tomcat;
import org.apache.coyote.http11.Http11NioProtocol;
import org.apache.tomcat.util.descriptor.web.ApplicationListener;
import org.apache.tomcat.websocket.server.WsContextListener;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.simp.SimpMessagingTemplate;
import org.springframework.messaging.simp.config.ChannelRegistration;
import org.springframework.messaging.simp.config.MessageBrokerRegistry;
import org.springframework.messaging.simp.stomp.*;
import org.springframework.messaging.support.ChannelInterceptorAdapter;
import org.springframework.web.SpringServletContainerInitializer;
import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
import org.springframework.web.socket.WebSocketHttpHeaders;
import org.springframework.web.socket.client.standard.StandardWebSocketClient;
import org.springframework.web.socket.config.annotation.AbstractWebSocketMessageBrokerConfigurer;
import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
import org.springframework.web.socket.messaging.WebSocketStompClient;
import org.springframework.web.socket.sockjs.client.SockJsClient;
import org.springframework.web.socket.sockjs.client.WebSocketTransport;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Type;
import java.util.*;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
import static java.util.concurrent.TimeUnit.SECONDS;
public class Test48402361 {
private static final Logger logger = LoggerFactory.getLogger(Test48402361.class);
private static TomcatWebSocketTestServer server = new TomcatWebSocketTestServer(33333);
@BeforeClass
public static void beforeClass() throws Exception {
server.deployConfig(Config.class);
server.start();
}
@AfterClass
public static void afterClass() throws Exception {
server.stop();
}
@Test
public void testUser() throws Exception {
WebSocketStompClient stompClient = new WebSocketStompClient(new SockJsClient(Collections.singletonList(new WebSocketTransport(new StandardWebSocketClient()))));
BlockingQueue<String> blockingQueue = new LinkedBlockingQueue<>();
StompSession session = stompClient
.connect("ws://localhost:" + server.getPort() + "/test", new WebSocketHttpHeaders(), new StompSessionHandlerAdapter() {
})
.get();
// waiting until message 2 expired
Thread.sleep(3000);
session.subscribe("/user/john/reply", new StompFrameHandler() {
@Override
public Type getPayloadType(StompHeaders headers) {
return byte[].class;
}
@Override
public void handleFrame(StompHeaders headers, Object payload) {
String message = new String((byte[]) payload);
logger.debug("message: {}, headers: {}", message, headers);
blockingQueue.add(message);
}
});
String message = blockingQueue.poll(1, SECONDS);
Assert.assertEquals("1", message);
message = blockingQueue.poll(1, SECONDS);
Assert.assertEquals("3", message);
}
public static class Config extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getRootConfigClasses() {
return new Class[] { };
}
@Override
protected Class<?>[] getServletConfigClasses() {
return new Class[] { Mvc.class };
}
@Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
}
@Configuration
@EnableWebSocketMessageBroker
public static class Mvc extends AbstractWebSocketMessageBrokerConfigurer {
@Override
public void registerStompEndpoints(StompEndpointRegistry stompEndpointRegistry) {
stompEndpointRegistry.addEndpoint("/test")
.withSockJS()
.setWebSocketEnabled(true);
}
@Override
public void configureMessageBroker(MessageBrokerRegistry registry) {
registry.enableStompBrokerRelay("/user").setRelayHost("localhost").setRelayPort(61614);
}
@Autowired
private SimpMessagingTemplate template;
@Override
public void configureClientInboundChannel(ChannelRegistration registration) {
registration.setInterceptors(new ChannelInterceptorAdapter() {
@Override
public Message<?> preSend(Message<?> message, MessageChannel channel) {
StompHeaderAccessor sha = StompHeaderAccessor.wrap(message);
switch (sha.getCommand()) {
case CONNECT:
// after connect we send 3 messages to user john, one will purged after 2 seconds.
template.convertAndSendToUser("john", "/reply", "1");
Map<String, Object> headers = new HashMap<>();
headers.put("expires", System.currentTimeMillis() + 2000);
template.convertAndSendToUser("john", "/reply", "2", headers);
template.convertAndSendToUser("john", "/reply", "3");
break;
}
return super.preSend(message, channel);
}
});
}
}
public static class TomcatWebSocketTestServer {
private static final ApplicationListener WS_APPLICATION_LISTENER =
new ApplicationListener(WsContextListener.class.getName(), false);
private final Tomcat tomcatServer;
private final int port;
private Context context;
public TomcatWebSocketTestServer(int port) {
this.port = port;
Connector connector = new Connector(Http11NioProtocol.class.getName());
connector.setPort(this.port);
File baseDir = createTempDir("tomcat");
String baseDirPath = baseDir.getAbsolutePath();
this.tomcatServer = new Tomcat();
this.tomcatServer.setBaseDir(baseDirPath);
this.tomcatServer.setPort(this.port);
this.tomcatServer.getService().addConnector(connector);
this.tomcatServer.setConnector(connector);
}
private File createTempDir(String prefix) {
try {
File tempFolder = File.createTempFile(prefix + '.', "." + getPort());
tempFolder.delete();
tempFolder.mkdir();
tempFolder.deleteOnExit();
return tempFolder;
} catch (IOException ex) {
throw new RuntimeException("Unable to create temp directory", ex);
}
}
public int getPort() {
return this.port;
}
@SafeVarargs
public final void deployConfig(Class<? extends WebApplicationInitializer>... initializers) {
this.context = this.tomcatServer.addContext("", System.getProperty("java.io.tmpdir"));
// Add Tomcat's DefaultServlet
Wrapper defaultServlet = this.context.createWrapper();
defaultServlet.setName("default");
defaultServlet.setServletClass("org.apache.catalina.servlets.DefaultServlet");
this.context.addChild(defaultServlet);
// Ensure WebSocket support
this.context.addApplicationListener(WS_APPLICATION_LISTENER);
this.context.addServletContainerInitializer(
new SpringServletContainerInitializer(), new HashSet<>(Arrays.asList(initializers)));
}
public void start() throws Exception {
this.tomcatServer.start();
}
public void stop() throws Exception {
this.tomcatServer.stop();
}
}
}