Added Replica4

1 files changed, 108 insertions, 0 deletions

diff --git a/src/main/java/derms/Replica4.java b/src/main/java/derms/Replica4.java
new file mode 100644
index 0000000..760f8bb
--- /dev/null
+++ b/src/main/java/derms/Replica4.java
@@ -0,0 +1,108 @@
+package derms;
+
+//import derms.Replica3pkg.ResponderClient;
+import java.io.*;
+import java.util.*;
+
+import derms.Replica4pkg.RemoteServer;
+
+public class Replica4 implements Replica {
+
+    private ReplicaManager replicaManager;
+    private RemoteServer remoteServer;
+    private boolean alive = true;
+    
+    public Replica4(ReplicaManager replicaManager){
+        this.replicaManager = replicaManager;
+    }
+
+    @Override
+    public boolean isAlive() {
+        return alive;
+    }
+
+    @Override
+    public void startProcess() {
+        this.remoteServer = new RemoteServer();
+        System.out.println("[Replica 4] Process started.");
+    }
+
+    @Override
+    public void processRequest(Request request) {
+        ResponderClient responderClient;
+        CoordinatorClient coordinatorClient;
+        String responseMessage;
+        switch (request.getFunction()) {
+            case "addResource":
+                responderClient = new ResponderClient(request.getClientID());
+                responseMessage = responderClient.addResource(request.getResourceID(), request.getResourceType(), request.getDuration());
+                break;
+            case "removeResource":
+                responderClient = new ResponderClient(request.getClientID());
+                responseMessage = responderClient.removeResource(request.getResourceID(), request.getDuration());
+                break;
+            case "listResourceAvailability":
+                responderClient = new ResponderClient(request.getClientID());
+                responseMessage = responderClient.listResourceAvailability(request.getResourceType());
+                break;
+            case "requestResource":
+                coordinatorClient = new CoordinatorClient(request.getClientID());
+                responseMessage = coordinatorClient.requestResource(request.getResourceID(), request.getDuration());
+                break;
+            case "findResource":
+                coordinatorClient = new CoordinatorClient(request.getClientID());
+                responseMessage = coordinatorClient.findResource(request.getResourceType());
+                break;
+            case "returnResource":
+                coordinatorClient = new CoordinatorClient(request.getClientID());
+                responseMessage = coordinatorClient.returnResource(request.getResourceID());
+                break;
+            case "swapResource":
+                coordinatorClient = new CoordinatorClient(request.getClientID());
+                responseMessage = coordinatorClient.swapResource(
+                        request.getClientID(),
+                        request.getOldResourceID(),
+                        request.getOldResourceType(),
+                        request.getResourceID(),
+                        request.getResourceType()
+                );
+                break;
+            default:
+                responseMessage = "Unrecognized function: " + request.getFunction();
+                log("Unrecognized function in request: " + request.getFunction());
+                break;
+        }
+
+        Response response = new Response(request.getSequenceNumber(), responseMessage);
+        log("Replica " + 4 + " processed request: " + request + ", response: " + response);
+        replicaManager.sendResponseToFE(response);
+    }
+
+    @Override
+    public void restart() {
+        shutDown();
+        startProcess();
+    }
+
+    public void shutDown(){
+        this.remoteServer.stopServers();
+    }
+
+    @Override
+    public int getId() {
+        return 4;
+    }
+
+    public synchronized void log(String message) {
+        String logMessage = new Date() + " - " + message;
+        System.out.println(logMessage);
+
+        try (FileWriter fw = new FileWriter("Replica4_log.txt", true);
+             BufferedWriter bw = new BufferedWriter(fw);
+             PrintWriter out = new PrintWriter(bw)) {
+            out.println(logMessage);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}
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