pass FE ip address as cmdline arg

1 files changed, 9 insertions, 7 deletions

diff --git a/src/main/java/derms/ReplicaManager.java b/src/main/java/derms/ReplicaManager.java
index 1f95fac..414cdf0 100644
--- a/src/main/java/derms/ReplicaManager.java
+++ b/src/main/java/derms/ReplicaManager.java
@@ -21,6 +21,7 @@ import java.io.ObjectInputStream;
 import java.util.logging.Logger;
 
 public class ReplicaManager {
+    public static final String usage = "Usage: java ReplicaManager <replicaId> <frontEndIP>";
     private final int replicaId;
     private Replica replica;
     private Response response;
@@ -29,18 +30,18 @@ public class ReplicaManager {
     private ReliableUnicastSender<Response> unicastSender;
     private TotalOrderMulticastReceiver multicastReceiver;
 
-    public ReplicaManager(int replicaId) throws IOException {
+    public ReplicaManager(int replicaId, InetAddress frontEndIP) throws IOException {
         this.replicaId = replicaId;
         this.log = Logger.getLogger(getClass().getName());
-        initUnicastSender();
+        initUnicastSender(frontEndIP);
         initReplica();
         initMulticastReceiver();
         startHeartbeatThread();
     }
 
-    private void initUnicastSender() throws IOException {
+    private void initUnicastSender(InetAddress frontEndIP) throws IOException {
         int frontEndPort = Config.frontendResponsePorts[replicaId - 1];
-        frontEndAddress = new InetSocketAddress("localhost", frontEndPort);
+        frontEndAddress = new InetSocketAddress(frontEndIP, frontEndPort);
         unicastSender = new ReliableUnicastSender<>(frontEndAddress);
     }
 
@@ -134,15 +135,16 @@ public class ReplicaManager {
     }
 
     public static void main(String[] args) {
-        if (args.length != 1) {
-            System.err.println("Usage: java ReplicaManager <replicaId>");
+        if (args.length < 2) {
+            System.err.println(usage);
             System.exit(1);
         }
 
         int replicaId = Integer.parseInt(args[0]);
 
         try {
-            ReplicaManager replicaManager = new ReplicaManager(replicaId);
+            InetAddress frontEndIP = InetAddress.getByName(args[1]);
+            ReplicaManager replicaManager = new ReplicaManager(replicaId, frontEndIP);
             System.out.println("ReplicaManager " + replicaId + " is running.");
         } catch (IOException e) {
             System.err.println("Failed to start ReplicaManager: " + e.getMessage());