From 26458eafb530582b744929e6b03b0042c977f7cd Mon Sep 17 00:00:00 2001
From: Pacien TRAN-GIRARD
Date: Tue, 10 May 2016 20:31:10 +0200
Subject: Create entry points structures

---
 src/ch/epfl/xblast/ArgumentChecker.java | 29 +++++++++++++++++++++++++++++
 src/ch/epfl/xblast/client/Client.java   | 30 ++++++++++++++++++++++++++++++
 src/ch/epfl/xblast/client/Main.java     | 23 +++++++++++++++++++++++
 src/ch/epfl/xblast/server/Main.java     | 24 ++++++++++++++++++++++++
 src/ch/epfl/xblast/server/Server.java   | 30 ++++++++++++++++++++++++++++++
 5 files changed, 136 insertions(+)
 create mode 100644 src/ch/epfl/xblast/client/Client.java
 create mode 100644 src/ch/epfl/xblast/client/Main.java
 create mode 100644 src/ch/epfl/xblast/server/Main.java
 create mode 100644 src/ch/epfl/xblast/server/Server.java

diff --git a/src/ch/epfl/xblast/ArgumentChecker.java b/src/ch/epfl/xblast/ArgumentChecker.java
index 7e77b61..56f8acd 100644
--- a/src/ch/epfl/xblast/ArgumentChecker.java
+++ b/src/ch/epfl/xblast/ArgumentChecker.java
@@ -59,4 +59,33 @@ public final class ArgumentChecker {
         return s;
     }
 
+    /**
+     * Returns the element from the array at the requested index, or null if it cannot be retrieved.
+     *
+     * @param array the array
+     * @param index the index
+     * @param <T>   the type of element
+     * @return the requested element, or null
+     */
+    public static <T> T getOrNull(T[] array, int index) {
+        if (Objects.isNull(array) || index < 0 || index >= array.length)
+            return null;
+        else
+            return array[index];
+    }
+
+    /**
+     * Parses and returns an integer, or return null on error.
+     *
+     * @param str the integer to parse
+     * @return the parsed integer, or null
+     */
+    public static Integer parseIntOrNull(String str) {
+        try {
+            return Integer.parseInt(str);
+        } catch (NumberFormatException | NullPointerException e) {
+            return null;
+        }
+    }
+
 }
diff --git a/src/ch/epfl/xblast/client/Client.java b/src/ch/epfl/xblast/client/Client.java
new file mode 100644
index 0000000..dc08f1b
--- /dev/null
+++ b/src/ch/epfl/xblast/client/Client.java
@@ -0,0 +1,30 @@
+package ch.epfl.xblast.client;
+
+import ch.epfl.xblast.server.Server;
+
+import java.net.InetSocketAddress;
+import java.util.Optional;
+
+/**
+ * The Client class.
+ *
+ * @author Pacien TRAN-GIRARD (261948)
+ */
+public class Client {
+
+    private static final String DEFAULT_SERVER_HOST = "localhost";
+    private static final int DEFAULT_SERVER_PORT = Server.DEFAULT_PORT;
+
+    private final InetSocketAddress serverAddr;
+
+    public Client(String host, Integer port) {
+        this.serverAddr = new InetSocketAddress(
+                Optional.ofNullable(host).orElse(DEFAULT_SERVER_HOST),
+                Optional.ofNullable(port).orElse(DEFAULT_SERVER_PORT));
+    }
+
+    public void run() {
+        // TODO
+    }
+
+}
diff --git a/src/ch/epfl/xblast/client/Main.java b/src/ch/epfl/xblast/client/Main.java
new file mode 100644
index 0000000..19145c5
--- /dev/null
+++ b/src/ch/epfl/xblast/client/Main.java
@@ -0,0 +1,23 @@
+package ch.epfl.xblast.client;
+
+import ch.epfl.xblast.ArgumentChecker;
+
+/**
+ * Entry point class of the client.
+ *
+ * @author Pacien TRAN-GIRARD (261948)
+ */
+public final class Main {
+
+    private Main() {
+        // Static class
+    }
+
+    public static void main(String[] args) {
+        String host = ArgumentChecker.getOrNull(args, 0);
+        Integer port = ArgumentChecker.parseIntOrNull(ArgumentChecker.getOrNull(args, 1));
+
+        (new Client(host, port)).run();
+    }
+
+}
diff --git a/src/ch/epfl/xblast/server/Main.java b/src/ch/epfl/xblast/server/Main.java
new file mode 100644
index 0000000..98bbb3d
--- /dev/null
+++ b/src/ch/epfl/xblast/server/Main.java
@@ -0,0 +1,24 @@
+package ch.epfl.xblast.server;
+
+import ch.epfl.xblast.ArgumentChecker;
+
+/**
+ * Entry point class of the server.
+ *
+ * @author Pacien TRAN-GIRARD (261948)
+ */
+public final class Main {
+
+    private Main() {
+        // Static class
+    }
+
+    public static void main(String[] args) {
+        Integer expectedClients = ArgumentChecker.parseIntOrNull(ArgumentChecker.getOrNull(args, 0));
+        String iface = ArgumentChecker.getOrNull(args, 1);
+        Integer port = ArgumentChecker.parseIntOrNull(ArgumentChecker.getOrNull(args, 2));
+
+        (new Server(iface, port, expectedClients)).run();
+    }
+
+}
diff --git a/src/ch/epfl/xblast/server/Server.java b/src/ch/epfl/xblast/server/Server.java
new file mode 100644
index 0000000..76f332e
--- /dev/null
+++ b/src/ch/epfl/xblast/server/Server.java
@@ -0,0 +1,30 @@
+package ch.epfl.xblast.server;
+
+import ch.epfl.xblast.PlayerID;
+
+import java.net.InetSocketAddress;
+import java.util.Optional;
+
+/**
+ * The Server class.
+ *
+ * @author Pacien TRAN-GIRARD (261948)
+ */
+public class Server {
+
+    public static final int DEFAULT_PORT = 2016;
+    public static final int DEFAULT_EXPECTED_CLIENTS = PlayerID.values().length;
+
+    private final InetSocketAddress iface;
+    private final int expectedClients;
+
+    public Server(String iface, Integer port, Integer expectedClients) {
+        this.iface = new InetSocketAddress(iface, Optional.ofNullable(port).orElse(DEFAULT_PORT));
+        this.expectedClients = Optional.ofNullable(expectedClients).orElse(DEFAULT_EXPECTED_CLIENTS);
+    }
+
+    public void run() {
+        // TODO
+    }
+
+}
-- 
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