#567 Add/change email should be aware of account threshold

src/main/java/fr/xephi/authme/datasource/CacheDataSource.java

@@ -250,9 +250,4 @@ public class CacheDataSource implements DataSource {
     public List<PlayerAuth> getLoggedPlayers() {
         return new ArrayList<>(PlayerCache.getInstance().getCache().values());
     }
-
-    @Override
-    public boolean isEmailStored(String email) {
-        return source.isEmailStored(email);
-    }
 }

src/main/java/fr/xephi/authme/datasource/DataSource.java

@@ -185,8 +185,6 @@ public interface DataSource {
      */
     List<PlayerAuth> getLoggedPlayers();
 
-    boolean isEmailStored(String email);
-
     /**
      * Reload the data source.
      */

src/main/java/fr/xephi/authme/datasource/FlatFile.java

@@ -521,11 +521,6 @@ public class FlatFile implements DataSource {
         throw new UnsupportedOperationException("Flat file no longer supported");
     }
 
-    @Override
-    public boolean isEmailStored(String email) {
-        throw new UnsupportedOperationException("Flat file no longer supported");
-    }
-
     private static PlayerAuth buildAuthFromArray(String[] args) {
         // Format allows 2, 3, 4, 7, 8, 9 fields. Anything else is unknown
         if (args.length >= 2 && args.length <= 9 && args.length != 5 && args.length != 6) {

src/main/java/fr/xephi/authme/datasource/MySQL.java

@@ -908,20 +908,6 @@ public class MySQL implements DataSource {
         return auths;
     }
 
-    @Override
-    public synchronized boolean isEmailStored(String email) {
-        String sql = "SELECT 1 FROM " + tableName + " WHERE UPPER(" + col.EMAIL + ") = UPPER(?)";
-        try (Connection con = ds.getConnection(); PreparedStatement pst = con.prepareStatement(sql)) {
-            pst.setString(1, email);
-            try (ResultSet rs = pst.executeQuery()) {
-                return rs.next();
-            }
-        } catch (SQLException e) {
-            logSqlException(e);
-        }
-        return false;
-    }
-
     private PlayerAuth buildAuthFromResultSet(ResultSet row) throws SQLException {
         String salt = col.SALT.isEmpty() ? null : row.getString(col.SALT);
         int group = col.GROUP.isEmpty() ? -1 : row.getInt(col.GROUP);

src/main/java/fr/xephi/authme/datasource/SQLite.java

@@ -580,22 +580,6 @@ public class SQLite implements DataSource {
         return auths;
     }
 
-    @Override
-    public synchronized boolean isEmailStored(String email) {
-        String sql = "SELECT 1 FROM " + tableName + " WHERE " + col.EMAIL + " = ? COLLATE NOCASE;";
-        ResultSet rs = null;
-        try (PreparedStatement ps = con.prepareStatement(sql)) {
-            ps.setString(1, email);
-            rs = ps.executeQuery();
-            return rs.next();
-        } catch (SQLException e) {
-            logSqlException(e);
-        } finally {
-            close(rs);
-        }
-        return false;
-    }
-
     private PlayerAuth buildAuthFromResultSet(ResultSet row) throws SQLException {
         String salt = !col.SALT.isEmpty() ? row.getString(col.SALT) : null;