added skeleton for websockets

build.gradle

@@ -15,6 +15,7 @@ repositories {
 
 dependencies {
 	compile 'org.hibernate.javax.persistence:hibernate-jpa-2.1-api:1.0.0.Final'
+	compile "org.springframework.boot:spring-boot-starter-websocket"
 	implementation 'org.springframework.boot:spring-boot-starter'
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
 	implementation 'org.springframework.boot:spring-boot-starter-security'

src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/websocket/HouseEndpoint.java

@@ -0,0 +1,24 @@
+package ch.usi.inf.sa4.sanmarinoes.smarthut.websocket;
+
+import java.io.IOException;
+import javax.websocket.*;
+import javax.websocket.server.ServerEndpoint;
+
+@ServerEndpoint(
+        value =
+                "theEndpointMustHaveAShotNameBecauseAndreaBritesMartesMaronesIsAVeryNiceProgrammerThatMustTypeThisByHand.exe") // DONE: choose path
+public class HouseEndpoint {
+    private Session session;
+
+    @OnOpen
+    public void onOpen(Session session) throws IOException {}
+
+    @OnMessage
+    public void onMessage() throws IOException {}
+
+    @OnClose
+    public void onClose() {}
+
+    @OnError
+    public void onError() {}
+}

src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/websocket/WebSocketConfig.java

@@ -0,0 +1,26 @@
+package ch.usi.inf.sa4.sanmarinoes.smarthut.websocket;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.messaging.simp.config.MessageBrokerRegistry;
+import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
+import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
+import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;
+
+@Configuration
+@EnableWebSocketMessageBroker
+public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {
+
+    @Override
+    public void registerStompEndpoints(StompEndpointRegistry registry) {
+        registry.addEndpoint("/house")
+                .setAllowedOrigins("domainURL")
+                .withSockJS(); // TODO: set domain URL
+    }
+
+    /** Creates message brokers in-memory to send and receive messages for topic and queue route */
+    @Override
+    public void configureMessageBroker(MessageBrokerRegistry config) {
+        config.enableSimpleBroker("/topic/", "/queue/");
+        config.setApplicationDestinationPrefixes("/app");
+    }
+}