Refactor plugin to use a specific CommandExecutor class

Author: ricglz

src/main/java/me/ricglz/discoords/Discoords.java

@@ -6,10 +6,6 @@
 import net.dv8tion.jda.api.JDABuilder;
 import net.dv8tion.jda.api.entities.TextChannel;
 
-import org.bukkit.Location;
-import org.bukkit.command.Command;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
 import org.bukkit.plugin.java.JavaPlugin;
 
 /**
@@ -28,54 +24,17 @@ public void onEnable() {
         try {
             jda = JDABuilder.createDefault(token).build().awaitReady();
             channel = jda.getTextChannelById(channelID);
-            if (channel == null) {
-                getLogger().warning("The channel id is incorrect");
-                return;
-            }
-            channel.sendMessage(welcomeMessage).queue();
         } catch (LoginException | InterruptedException e) {
             getLogger().warning("There was a problem building the bot. It may be due to the token");
             if (e instanceof InterruptedException) {
                 Thread.currentThread().interrupt();
             }
         }
-    }
-
-    @Override
-    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
-        if (cmd.getName().equalsIgnoreCase("discoords")) {
-            if (args.length > 1) {
-                sender.sendMessage("The command doesn't accept as many arguments");
-                return false;
-            }
-            if (jda == null || channel == null) {
-                sender.sendMessage("Discoord is not available");
-                return true;
-            }
-            if (sender instanceof Player) {
-                Player player = (Player) sender;
-                Location loc = player.getLocation();
-                String locString = String.format("(%d, %d, %d)", (int) loc.getX(), (int) loc.getY(), (int) loc.getZ());
-                String msg = args.length == 0 ? locString : String.format("%s - %s", locString, args[0]);
-                sender.sendMessage(msg);
-                sendLocation(msg, player.getDisplayName());
-            } else {
-                sender.sendMessage("You must be a player!");
-            }
-            return true;
+        if (channel == null) {
+            getLogger().warning("The channel id is incorrect");
+            return;
         }
-        return true;
-    }
-
-    /**
-     * Sends a mesage about the current location and the player name to the
-     * designated discord channel
-     * 
-     * @param sentMessage Message that was sent to the player in Minecraft
-     * @param playerName  Name of the player who executed the command
-     */
-    private void sendLocation(String sentMessage, String playerName) {
-        String msg = String.format("%s - by %s", sentMessage, playerName);
-        channel.sendMessage(msg).queue();
+        channel.sendMessage(welcomeMessage).queue();
+        this.getCommand("discoords").setExecutor(new DiscoordsCommandExecutor(channel));
     }
 }

src/main/java/me/ricglz/discoords/DiscoordsCommandExecutor.java

@@ -0,0 +1,54 @@
+package me.ricglz.discoords;
+
+import org.bukkit.Location;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+import net.dv8tion.jda.api.entities.TextChannel;
+
+public class DiscoordsCommandExecutor implements CommandExecutor {
+    TextChannel channel;
+
+    DiscoordsCommandExecutor(TextChannel channel) {
+        this.channel = channel;
+    }
+
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+        if (args.length > 1) {
+            sender.sendMessage("[Error] The command doesn't accept as many arguments");
+            return false;
+        }
+        if (!(sender instanceof Player)) {
+            sender.sendMessage("[Error] You must be a player!");
+            return true;
+        }
+        if (channel == null) {
+            sender.sendMessage("[Error] Discoord is not available");
+            return true;
+        }
+
+        Player player = (Player) sender;
+        Location loc = player.getLocation();
+        String locString = String.format("(%d, %d, %d)", (int) loc.getX(), (int) loc.getY(), (int) loc.getZ());
+        String msg = args.length == 0 ? locString : String.format("%s - %s", locString, args[0]);
+        sender.sendMessage(msg);
+        sendLocation(msg, player.getDisplayName());
+
+        return true;
+    }
+
+    /**
+     * Sends a mesage about the current location and the player name to the
+     * designated discord channel
+     * 
+     * @param sentMessage Message that was sent to the player in Minecraft
+     * @param playerName  Name of the player who executed the command
+     */
+    private void sendLocation(String sentMessage, String playerName) {
+        String msg = String.format("%s - by %s", sentMessage, playerName);
+        channel.sendMessage(msg).queue();
+    }
+}