Give periodic status messages to the console in conversion

src/main/java/com/gmail/nossr50/database/DatabaseManager.java

@@ -11,6 +11,8 @@ import com.gmail.nossr50.datatypes.player.PlayerProfile;
 public interface DatabaseManager {
     // One month in milliseconds
     public final long PURGE_TIME = 2630000000L * Config.getInstance().getOldUsersCutoff();
+    // During convertUsers, how often to output a status
+    public final int progressInterval = 200;
 
     /**
      * Purge users with 0 power level from the database.

src/main/java/com/gmail/nossr50/database/FlatfileDatabaseManager.java

@@ -411,6 +411,8 @@ public final class FlatfileDatabaseManager implements DatabaseManager {
     public void convertUsers(DatabaseManager destination) {
         BufferedReader in = null;
         String usersFilePath = mcMMO.getUsersFilePath();
+        int convertedUsers = 0;
+        long startMillis = System.currentTimeMillis();
 
         synchronized (fileWritingLock) {
             try {
@@ -427,6 +429,11 @@ public final class FlatfileDatabaseManager implements DatabaseManager {
                     catch (Exception e) {
                         e.printStackTrace();
                     }
+                    convertedUsers++;
+                    if ((convertedUsers % DatabaseManager.progressInterval) == 0) {
+                        // Can't use Bukkit.broadcastMessage because async
+                        System.out.println(String.format("[mcMMO] Conversion progress: %d users at %.2f users/second", convertedUsers, convertedUsers / ((System.currentTimeMillis() - startMillis) / 1000D)));
+                    }
                 }
             }
             catch (Exception e) {

src/main/java/com/gmail/nossr50/database/SQLDatabaseManager.java

@@ -447,6 +447,8 @@ public final class SQLDatabaseManager implements DatabaseManager {
                     + "WHERE u.user = ?");
             List<String> usernames = getStoredUsers();
             ResultSet result = null;
+            int convertedUsers = 0;
+            long startMillis = System.currentTimeMillis();
             for (String playerName : usernames) {
                 statement.setString(1, playerName);
                 try {
@@ -458,6 +460,11 @@ public final class SQLDatabaseManager implements DatabaseManager {
                 catch (SQLException e) {
                     // Ignore
                 }
+                convertedUsers++;
+                if ((convertedUsers % DatabaseManager.progressInterval) == 0) {
+                    // Can't use Bukkit.broadcastMessage because async
+                    System.out.println(String.format("[mcMMO] Conversion progress: %d users at %.2f users/second", convertedUsers, convertedUsers / ((System.currentTimeMillis() - startMillis) / 1000D)));
+                }
             }
         }
         catch (SQLException e) {

src/main/java/com/gmail/nossr50/runnables/database/FormulaConversionTask.java

@@ -5,6 +5,7 @@ import org.bukkit.scheduler.BukkitRunnable;
 
 import com.gmail.nossr50.mcMMO;
 import com.gmail.nossr50.config.experience.ExperienceConfig;
+import com.gmail.nossr50.database.DatabaseManager;
 import com.gmail.nossr50.datatypes.experience.FormulaType;
 import com.gmail.nossr50.datatypes.player.McMMOPlayer;
 import com.gmail.nossr50.datatypes.player.PlayerProfile;
@@ -23,6 +24,8 @@ public class FormulaConversionTask extends BukkitRunnable {
 
     @Override
     public void run() {
+        int convertedUsers = 0;
+        long startMillis = System.currentTimeMillis();
         for (String playerName : mcMMO.getDatabaseManager().getStoredUsers()) {
             McMMOPlayer mcMMOPlayer = UserManager.getPlayer(playerName, true);
             PlayerProfile profile;
@@ -43,6 +46,11 @@ public class FormulaConversionTask extends BukkitRunnable {
                 profile = mcMMOPlayer.getProfile();
                 editValues(profile);
             }
+            convertedUsers++;
+            if ((convertedUsers % DatabaseManager.progressInterval) == 0) {
+                // Can't use Bukkit.broadcastMessage because async
+                System.out.println(String.format("[mcMMO] Conversion progress: %d users at %.2f users/second", convertedUsers, convertedUsers / ((System.currentTimeMillis() - startMillis) / 1000D)));
+            }
         }
         mcMMO.getFormulaManager().setPreviousFormulaType(formulaType);