huge rework, RAFT WORKING

SymphonyManager/src/main/java/io/github/lumijiez/AddressHolder.java

@@ -0,0 +1,45 @@
+package io.github.lumijiez;
+
+import java.util.Timer;
+import java.util.TimerTask;
+
+public class AddressHolder {
+    private String host;
+    private int port;
+
+    private static AddressHolder INSTANCE;
+
+    private AddressHolder() {
+//        Timer timer = new Timer(true);
+//        timer.scheduleAtFixedRate(new TimerTask() {
+//            @Override
+//            public void run() {
+//                Main.logger.info("Host: {}, Port: {}", host, port);
+//            }
+//        }, 0, 1000);
+    }
+
+    public static AddressHolder getInstance() {
+        if (INSTANCE == null) {
+            INSTANCE = new AddressHolder();
+        }
+        return INSTANCE;
+    }
+
+    public int getPort() {
+        return port;
+    }
+
+    public String getHost() {
+        return host;
+    }
+
+    public void setHost(String host) {
+        this.host = host;
+    }
+
+    public void setPort(int port) {
+        this.port = port;
+    }
+}
+

SymphonyManager/src/main/java/io/github/lumijiez/JavalinHttpConfig.java

@@ -0,0 +1,20 @@
+package io.github.lumijiez;
+
+import io.github.lumijiez.requests.UpdateLeaderRequest;
+import io.javalin.Javalin;
+import io.javalin.http.Context;
+
+public class JavalinHttpConfig {
+    public static void setup(Javalin app) {
+        app.post("/update_leader", JavalinHttpConfig::handleUpdateLeader);
+    }
+
+    public static void handleUpdateLeader(Context ctx) {
+        UpdateLeaderRequest request = ctx.bodyAsClass(UpdateLeaderRequest.class);
+
+        AddressHolder.getInstance().setHost(request.getLeaderHost());
+        AddressHolder.getInstance().setPort(request.getLeaderPort());
+
+        Main.logger.info("Changed host to leader: {}:{}", request.getLeaderHost(), request.getLeaderPort());
+    }
+}

SymphonyManager/src/main/java/io/github/lumijiez/Main.java

@@ -1,8 +1,26 @@
 package io.github.lumijiez;
 
-public class Main {
+import io.javalin.Javalin;
+import io.javalin.json.JavalinGson;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
+import java.time.Duration;
+
+public class Main {
+    public static Logger logger = LogManager.getLogger(Main.class);
     public static void main(String[] args) {
-        BrokerConnector.connect();
+        new Thread(BrokerConnector::connect, "RabbitMQ-Connection").start();
+
+        Javalin app = Javalin.create(config -> {
+            config.jsonMapper(new JavalinGson());
+            config.jetty.modifyWebSocketServletFactory(wsFactoryConfig -> {
+                wsFactoryConfig.setIdleTimeout(Duration.ZERO);
+            });
+        }).start(8081);
+
+        JavalinHttpConfig.setup(app);
+
+        logger.info("Discovery service up and running");
     }
 }

SymphonyManager/src/main/java/io/github/lumijiez/requests/UpdateLeaderRequest.java

@@ -0,0 +1,22 @@
+package io.github.lumijiez.requests;
+
+public class UpdateLeaderRequest {
+    private String leaderHost;
+    private int leaderPort;
+
+    public void setLeaderHost(String leaderHost) {
+        this.leaderHost = leaderHost;
+    }
+
+    public void setLeaderPort(int leaderPort) {
+        this.leaderPort = leaderPort;
+    }
+
+    public int getLeaderPort() {
+        return leaderPort;
+    }
+
+    public String getLeaderHost() {
+        return leaderHost;
+    }
+}