Do not lookup twice for banned players

src/main/java/fr/xephi/authme/command/executable/authme/PurgeBannedPlayersCommand.java

@@ -4,7 +4,6 @@ import fr.xephi.authme.AuthMe;
 import fr.xephi.authme.command.CommandService;
 import fr.xephi.authme.command.ExecutableCommand;
 import fr.xephi.authme.datasource.DataSource;
-import fr.xephi.authme.hooks.PluginHooks;
 import fr.xephi.authme.task.PurgeTask;
 import fr.xephi.authme.util.BukkitService;
 
@@ -27,9 +26,6 @@ public class PurgeBannedPlayersCommand implements ExecutableCommand {
     @Inject
     private DataSource dataSource;
 
-    @Inject
-    private PluginHooks pluginHooks;
-
     @Inject
     private AuthMe plugin;
 
@@ -39,17 +35,18 @@ public class PurgeBannedPlayersCommand implements ExecutableCommand {
     @Override
     public void executeCommand(CommandSender sender, List<String> arguments, CommandService commandService) {
         // Get the list of banned players
-        Set<String> bannedPlayers = new HashSet<>();
+        Set<String> namedBanned = new HashSet<>();
-        for (OfflinePlayer offlinePlayer : bukkitService.getBannedPlayers()) {
+        Set<OfflinePlayer> bannedPlayers = bukkitService.getBannedPlayers();
-            bannedPlayers.add(offlinePlayer.getName().toLowerCase());
+        for (OfflinePlayer offlinePlayer : bannedPlayers) {
+            namedBanned.add(offlinePlayer.getName().toLowerCase());
         }
 
         //todo: note this should may run async because it may executes a SQL-Query
         // Purge the banned players
-        dataSource.purgeBanned(bannedPlayers);
+        dataSource.purgeBanned(namedBanned);
 
         // Show a status message
         sender.sendMessage(ChatColor.GOLD + "Purging user accounts...");
-        new PurgeTask(plugin, plugin.getSettings(), sender, bannedPlayers).runTaskTimer(plugin, 0, 1);
+        new PurgeTask(plugin, plugin.getSettings(), sender, namedBanned, bannedPlayers).runTaskTimer(plugin, 0, 1);
     }
 }

src/main/java/fr/xephi/authme/task/PurgeTask.java

@@ -27,19 +27,25 @@ public class PurgeTask extends BukkitRunnable {
     private final UUID sender;
     private final Set<String> toPurge;
 
-    private final OfflinePlayer[] offlinePlayers = Bukkit.getOfflinePlayers();
+    private final OfflinePlayer[] offlinePlayers;
 
     private final boolean autoPurging;
     private final int totalPurgeCount;
 
     private int currentPage = 0;
 
+    public PurgeTask(AuthMe plugin, NewSetting newSetting, CommandSender sender
+            , Set<String> purged, Set<OfflinePlayer> offlinePlayers) {
+        this(plugin, newSetting, sender, purged, false
+                , offlinePlayers.toArray(new OfflinePlayer[offlinePlayers.size()]));
+    }
+
     public PurgeTask(AuthMe plugin, NewSetting newSetting, CommandSender sender, Set<String> purged) {
-        this(plugin, newSetting, sender, purged, false);
+        this(plugin, newSetting, sender, purged, false, Bukkit.getOfflinePlayers());
     }
 
     public PurgeTask(AuthMe plugin, NewSetting newSetting, CommandSender sender, Set<String> purged
-            , boolean autoPurging) {
+            , boolean autoPurging, OfflinePlayer[] offlinePlayers) {
         this.plugin = plugin;
         this.newSetting = newSetting;
 
@@ -52,6 +58,7 @@ public class PurgeTask extends BukkitRunnable {
         this.toPurge = purged;
         this.totalPurgeCount = purged.size();
         this.autoPurging = autoPurging;
+        this.offlinePlayers = offlinePlayers;
 
         //this is commented out because I assume all players in the database already have an lowercase name
 //        toPurge = new HashSet<>(purged.size());

src/test/java/fr/xephi/authme/datasource/AbstractDataSourceIntegrationTest.java

@@ -10,6 +10,8 @@ import java.util.List;
 import static fr.xephi.authme.AuthMeMatchers.equalToHash;
 import static fr.xephi.authme.AuthMeMatchers.hasAuthBasicData;
 import static fr.xephi.authme.AuthMeMatchers.hasAuthLocation;
+import java.util.HashSet;
+import java.util.Set;
 import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.hasItem;
 import static org.hamcrest.Matchers.hasSize;
@@ -221,7 +223,7 @@ public abstract class AbstractDataSourceIntegrationTest {
     public void shouldDeletePlayers() {
         // given
         DataSource dataSource = getDataSource();
-        List<String> playersToDelete = Arrays.asList("bobby", "doesNotExist");
+        Set<String> playersToDelete = new HashSet<>(Arrays.asList("bobby", "doesNotExist"));
         assumeThat(dataSource.getAccountsRegistered(), equalTo(2));
 
         // when