From 912d379f53c43e8fbf73dd7124f96024eda5f2c1 Mon Sep 17 00:00:00 2001
From: Theodora-Mara Pislar <tmp1u19@soton.ac.uk>
Date: Sun, 25 Apr 2021 23:03:44 +0100
Subject: [PATCH] Add the skeleton of the java classes needed for this project
---
src/Client.java | 12 ++++++++++++
src/Controller.java | 26 ++++++++++++++++++++++++++
src/Dstore.java | 18 ++++++++++++++++++
3 files changed, 56 insertions(+)
create mode 100644 src/Client.java
diff --git a/src/Client.java b/src/Client.java
new file mode 100644
index 0000000..e62fd9a
--- /dev/null
+++ b/src/Client.java
@@ -0,0 +1,12 @@
+public class Client {
+
+ // controller port to communicate with
+ int cport;
+ // timeout in milliseconds
+ long timeout;
+
+ public Client(int cport, long timeout) {
+ this.cport = cport;
+ this.timeout = timeout;
+ }
+}
\ No newline at end of file
diff --git a/src/Controller.java b/src/Controller.java
index e69de29..5e258c3 100644
--- a/src/Controller.java
+++ b/src/Controller.java
@@ -0,0 +1,26 @@
+import java.io.*;
+import java.net.*;
+
+public class Controller {
+
+ // port to listen on
+ private int cport;
+ // replication factor => number of Dstores to join
+ private int R;
+ // timeout in milliseconds
+ private long timeout;
+ // how long to wait to start the next rebalance operation
+ private long rebalance_period;
+
+ public Controller (int cport, int R, long timeout, long rebalance_period) {
+ this.cport = cport;
+ this.R = R;
+ this.timeout = timeout;
+ this.rebalance_period = rebalance_period;
+ }
+
+ // orchestrates client requests
+ // maintains an index with the allocation of files to Dstores
+ // waits for Dstores to join the datastore (rebalance operation)
+ // it doesn't serve any client request until at least R Dstores have joined the system
+}
\ No newline at end of file
diff --git a/src/Dstore.java b/src/Dstore.java
index e69de29..20bfc0c 100644
--- a/src/Dstore.java
+++ b/src/Dstore.java
@@ -0,0 +1,18 @@
+public class Dstore {
+
+ // port to listen on
+ int port;
+ // controller's port to talk to
+ int cport;
+ // timeout in milliseconds
+ long timeout;
+ // where to store the data locally
+ String file_folder;
+
+ public Dstore (int port, int cport, long timeout, String file_folder) {
+ this.port = port;
+ this.cport = cport;
+ this.timeout = timeout;
+ this. file_folder = file_folder;
+ }
+}
\ No newline at end of file
--
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