Start logging work

src/main/java/chat/haver/server/Client.java

@@ -50,7 +50,7 @@ public String getName() {
     public Object getToken() {return token;}
 
     public void setName(final String name) {
-        if (Main.DEBUG && !(validName(name))) {System.err.println("Client:setName() : Invalid name");} // TODO: null check and fix error message
+        if (!(validName(name))) Logger.warning("Invalid name"); // TODO: null check and fix error message
         this.name = name;
     }
 

src/main/java/chat/haver/server/Location.java

@@ -82,7 +82,7 @@ public static Location fromJSON(final JSONObject jsonObject) {
 
             return new Location(latitude, longitude, accuracy);
         } catch(Exception e) {
-            System.err.println("Location:fromJSON : " + e.getMessage());
+            Logger.warning(e.getMessage());
             return null;
         }
     }
@@ -104,7 +104,7 @@ public double distanceBetween(final Location location) {
                 Math.sin(dLong/2) * Math.sin(dLong/2);
         double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
         double d = EARTH_RADIUS * c * 1000;
-        System.out.println("Locations are " + d + " meters apart.");
+        Logger.info("Locations are " + d + " meters apart.");
         return d;
     }
 

src/main/java/chat/haver/server/Logger.java

@@ -0,0 +1,63 @@
+package chat.haver.server;
+
+import java.util.Date;
+
+/**
+ * Created by azertify on 22/01/2016.
+ */
+public class Logger {
+
+    public static void info(String message) {
+        out(format(message, "info"));
+    }
+
+    public static void warning(String message) {
+        err(format(message, "warning"));
+    }
+
+    public static void sever(String message) {
+        err(format(message, "sever"));
+    }
+
+    private static String format(String message, String type) {
+        Date date = new Date();
+        StackTraceElement ste = Thread.currentThread().getStackTrace()[3];
+        String[] arr = ste.getClassName().split("\\.");
+        String classDetails = arr[arr.length] + ":" + ste.getMethodName();
+        if (type.equalsIgnoreCase("warning") || type.equalsIgnoreCase("sever")) {
+            return "[" + date.toString() + "] " + type.toUpperCase() + " (" + classDetails + ") " + message;
+        } else {
+            return "[" + date.toString() + "] " + type.toUpperCase() + " " + message;
+        }
+    }
+
+    private static void out(String message) {
+        switch(Main.ENVIRONMENT) {
+            case DEVELOPMENT:
+                System.out.println(message);
+                break;
+            case TESTING:
+                System.out.println(message);
+                break;
+            case PRODUCTION:
+                System.out.println(message); // TODO: Sort out production logging
+                break;
+        }
+    }
+
+    private static void err(String message) {
+        switch(Main.ENVIRONMENT) {
+            case DEVELOPMENT:
+                System.err.println(message);
+                break;
+            case TESTING:
+                System.out.println(message);
+                System.err.println(message);
+                break;
+            case PRODUCTION:
+                System.out.println(message);
+                System.err.println(message);
+                break;
+        }
+    }
+}

src/main/java/chat/haver/server/Main.java

@@ -27,7 +27,11 @@ public String toString() {
         }
     }
 
-    private Main(){}
+    /**
+     * Empty private constructor to prevent creation of Main.
+     */
+    private Main() {
+    }
 
     /**
      * Parses command line arguments then creates and runs a {@link Router server}.
@@ -39,9 +43,9 @@ public static void main(final String[] args) {
         try {
             Router router = new Router(host, port);
             router.start();
-            System.out.println("Hosting new server on: " + router.getAddress());
+            Logger.info("Hosting new server on: " + router.getAddress());
         } catch (UnknownHostException e) {
-            System.err.println("Invalid host: " + host + ':' + port);
+            Logger.sever("Invalid host: " + host + ':' + port);
         }
     }