fix: make sure annotated endpoints works along Vaadin PUSH (CP: 1.1)

integration-tests/common-test-code/pom.xml

@@ -61,6 +61,12 @@
             <artifactId>flow-test-util</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>com.vaadin</groupId>
+            <artifactId>custom-websockets</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
 
         <dependency>
             <groupId>io.quarkus</groupId>

integration-tests/common-test-code/src/main/java/com/vaadin/flow/quarkus/it/CustomAnnotatedEnpoint.java

@@ -0,0 +1,23 @@
+package com.vaadin.flow.quarkus.it;
+
+import javax.websocket.OnMessage;
+import javax.websocket.OnOpen;
+import javax.websocket.Session;
+import javax.websocket.server.ServerEndpoint;
+
+@ServerEndpoint(CustomAnnotatedEnpoint.URI)
+public class CustomAnnotatedEnpoint {
+
+    public static final String URI = "/app-annotated-websocket";
+    public static final String PREFIX = ">> Application Annotated Endpoint: ";
+
+    @OnOpen
+    public void onOpen(Session session) {
+        session.getAsyncRemote().sendText(PREFIX + "Welcome");
+    }
+
+    @OnMessage
+    public void onMessage(String message, Session session) {
+        session.getAsyncRemote().sendText(PREFIX + message);
+    }
+}

integration-tests/common-test-code/src/test/java/com/vaadin/flow/quarkus/it/CustomWebsocketsIT.java

@@ -0,0 +1,82 @@
+package com.vaadin.flow.quarkus.it;
+
+import javax.websocket.ClientEndpoint;
+import javax.websocket.ContainerProvider;
+import javax.websocket.OnMessage;
+import javax.websocket.OnOpen;
+import javax.websocket.Session;
+import java.io.IOException;
+import java.net.URI;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.LinkedBlockingDeque;
+import java.util.concurrent.TimeUnit;
+
+import io.quarkus.test.common.http.TestHTTPResource;
+import io.quarkus.test.junit.QuarkusIntegrationTest;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.vaadin.sample.websockets.DependencyAnnotatedWS;
+import org.vaadin.sample.websockets.SimpleEndpoint;
+
+@QuarkusIntegrationTest
+class CustomWebsocketsIT {
+
+    @TestHTTPResource(DependencyAnnotatedWS.URI)
+    URI dependencyAnnotatedWSURI;
+
+    @TestHTTPResource(SimpleEndpoint.URI)
+    URI dependencyNotAnnotatedWSURI;
+
+    @TestHTTPResource(CustomAnnotatedEnpoint.URI)
+    URI appAnnotatedWSURI;
+
+    @Test
+    void dependencyAnnotatedEndpointShouldWork() throws Exception {
+        assertWebsocketWorks(dependencyAnnotatedWSURI,
+                DependencyAnnotatedWS.PREFIX);
+    }
+
+    @Test
+    void applicationAnnotatedEndpointShouldWork() throws Exception {
+        assertWebsocketWorks(appAnnotatedWSURI, CustomAnnotatedEnpoint.PREFIX);
+    }
+
+    @Test
+    void dependencyNotAnnotatedEndpointShouldWork() throws Exception {
+        assertWebsocketWorks(dependencyNotAnnotatedWSURI,
+                SimpleEndpoint.PREFIX);
+    }
+
+    void assertWebsocketWorks(URI uri, String messagePrefix) throws Exception {
+        Client client = new Client();
+        try (Session session = ContainerProvider.getWebSocketContainer()
+                .connectToServer(client, uri)) {
+            Assertions.assertEquals("CONNECT", client.receivedMessage());
+            Assertions.assertEquals(messagePrefix + "Welcome",
+                    client.receivedMessage());
+            session.getBasicRemote().sendText("hello world");
+            Assertions.assertEquals(messagePrefix + "hello world",
+                    client.receivedMessage());
+        }
+    }
+
+    @ClientEndpoint
+    public static class Client {
+        final LinkedBlockingDeque<String> messages = new LinkedBlockingDeque<>();
+
+        @OnOpen
+        public void open(Session session) throws IOException {
+            messages.add("CONNECT");
+        }
+
+        @OnMessage
+        void message(String msg) {
+            messages.add(msg);
+        }
+
+        String receivedMessage() throws InterruptedException {
+            return messages.poll(12, TimeUnit.SECONDS);
+        }
+
+    }
+}

integration-tests/custom-websocket-dependency/pom.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0"?>
+<project
+        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"
+        xmlns="http://maven.apache.org/POM/4.0.0"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+
+    <parent>
+        <groupId>com.vaadin</groupId>
+        <artifactId>vaadin-quarkus-integration-tests</artifactId>
+        <version>1.1-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>custom-websockets</artifactId>
+    <name>Test dependency with custom websocket endpoints</name>
+    <packaging>jar</packaging>
+
+    <properties>
+        <maven.deploy.skip>true</maven.deploy.skip>
+        <maven.javadoc.skip>true</maven.javadoc.skip>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>jakarta.websocket</groupId>
+            <artifactId>jakarta.websocket-api</artifactId>
+            <version>1.1.2</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.jboss.jandex</groupId>
+                <artifactId>jandex-maven-plugin</artifactId>
+                <version>1.2.2</version>
+                <executions>
+                    <execution>
+                        <id>make-index</id>
+                        <goals>
+                            <goal>jandex</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>

integration-tests/custom-websocket-dependency/src/main/java/org/vaadin/sample/websockets/DependencyAnnotatedWS.java

@@ -0,0 +1,23 @@
+package org.vaadin.sample.websockets;
+
+import javax.websocket.OnMessage;
+import javax.websocket.OnOpen;
+import javax.websocket.Session;
+import javax.websocket.server.ServerEndpoint;
+
+@ServerEndpoint(DependencyAnnotatedWS.URI)
+public class DependencyAnnotatedWS {
+
+    public static final String URI = "/dependency-annotated-websocket";
+    public static final String PREFIX = ">> Dependency Annotated Endpoint: ";
+
+    @OnOpen
+    public void onOpen(Session session) {
+        session.getAsyncRemote().sendText(PREFIX + "Welcome");
+    }
+
+    @OnMessage
+    public void onMessage(String message, Session session) {
+        session.getAsyncRemote().sendText(PREFIX + message);
+    }
+}

integration-tests/custom-websocket-dependency/src/main/java/org/vaadin/sample/websockets/SimpleEndpoint.java

@@ -0,0 +1,39 @@
+package org.vaadin.sample.websockets;
+
+import javax.websocket.Endpoint;
+import javax.websocket.EndpointConfig;
+import javax.websocket.MessageHandler;
+import javax.websocket.RemoteEndpoint;
+import javax.websocket.Session;
+
+public class SimpleEndpoint extends Endpoint {
+
+    public static final String URI = "/dependency-websocket";
+
+    public static final String PREFIX = ">> Dependency Simple Endpoint: ";
+
+    @Override
+    public void onOpen(Session session, EndpointConfig config) {
+        Handler handler = new Handler(session.getAsyncRemote());
+        session.addMessageHandler(handler);
+        handler.reply("Welcome");
+    }
+
+    private static class Handler implements MessageHandler.Whole<String> {
+
+        private final RemoteEndpoint.Async remote;
+
+        public Handler(RemoteEndpoint.Async remote) {
+            this.remote = remote;
+        }
+
+        @Override
+        public void onMessage(String message) {
+            reply(message);
+        }
+
+        private void reply(String message) {
+            remote.sendText(PREFIX + message);
+        }
+    }
+}

integration-tests/custom-websocket-dependency/src/main/java/org/vaadin/sample/websockets/SimpleEndpointConfig.java

@@ -0,0 +1,21 @@
+package org.vaadin.sample.websockets;
+
+import javax.websocket.Endpoint;
+import javax.websocket.server.ServerApplicationConfig;
+import javax.websocket.server.ServerEndpointConfig;
+import java.util.Collections;
+import java.util.Set;
+
+public class SimpleEndpointConfig implements ServerApplicationConfig {
+    @Override
+    public Set<ServerEndpointConfig> getEndpointConfigs(
+            Set<Class<? extends Endpoint>> endpointClasses) {
+        return Set.of(ServerEndpointConfig.Builder
+                .create(SimpleEndpoint.class, SimpleEndpoint.URI).build());
+    }
+
+    @Override
+    public Set<Class<?>> getAnnotatedEndpointClasses(Set<Class<?>> scanned) {
+        return Collections.emptySet();
+    }
+}

integration-tests/development/pom.xml

@@ -50,6 +50,11 @@
             <artifactId>test-addon-with-jandex</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.vaadin</groupId>
+            <artifactId>custom-websockets</artifactId>
+            <version>${project.version}</version>
+        </dependency>
 
         <dependency>
             <groupId>com.vaadin</groupId>

integration-tests/pom.xml

@@ -19,6 +19,7 @@
         <!-- Builds testing addons -->
         <module>test-addons/addon-with-jandex</module>
         <module>test-addons/addon-without-jandex</module>
+        <module>custom-websocket-dependency</module>
         <!-- only validates that code compiles -->
         <module>common-test-code</module>
 

integration-tests/production/pom.xml

@@ -45,6 +45,11 @@
             <artifactId>test-addon-with-jandex</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.vaadin</groupId>
+            <artifactId>custom-websockets</artifactId>
+            <version>${project.version}</version>
+        </dependency>
 
         <dependency>
             <groupId>com.vaadin</groupId>

runtime/src/main/java/com/vaadin/quarkus/EnableWebsockets.java

@@ -19,22 +19,39 @@
 import javax.websocket.server.ServerApplicationConfig;
 import javax.websocket.server.ServerEndpointConfig;
 
+import java.util.Collections;
 import java.util.Set;
 
 /**
  * Only purpose of this class is to automatically enable quarkus WebSocket
  * deployment, in order to make Atmosphere JSR365Endpoint work.
+ * 
+ * Quarkus enables WebSocket deployment only if it finds annotated endpoints
+ * (@{@link javax.websocket.server.ServerEndpoint}) or implementors of
+ * {@link ServerApplicationConfig} interface.
+ * 
+ * Unfortunately, if at least one implementation of
+ * {@link ServerApplicationConfig} is found, annotated endpoints are not
+ * deployed automatically.
+ *
+ * To circumvent this problem, implementation of
+ * {@link #getAnnotatedEndpointClasses(Set)} method will return all the provided
+ * scanned annotated endpoints. Although Javadocs says that the passed set of
+ * scanned classes contains all the annotated endpoint classes in the JAR or WAR
+ * file containing the implementation of this interface, Quarkus will instead
+ * provide all available annotated endpoints found at build time.
+ *
  */
 public class EnableWebsockets implements ServerApplicationConfig {
 
     @Override
     public Set<ServerEndpointConfig> getEndpointConfigs(
             Set<Class<? extends Endpoint>> endpointClasses) {
-        return null;
+        return Collections.emptySet();
     }
 
     @Override
     public Set<Class<?>> getAnnotatedEndpointClasses(Set<Class<?>> scanned) {
-        return null;
+        return scanned;
     }
 }