Sqlite.java

package com.nicewuerfel.blockown.importer;

import com.nicewuerfel.blockown.OwningState;
import com.nicewuerfel.blockown.Setting;
import com.nicewuerfel.blockown.database.Database;
import com.nicewuerfel.blockown.database.DatabaseAction;
import com.nicewuerfel.blockown.database.SqliteDatabase;

import java.io.File;
import java.sql.SQLException;
import java.util.Iterator;

public class Sqlite extends Importer {

  public Sqlite(Setting settings, Database db, File pluginsFolder, Runnable runnable) {
    super(settings, db, pluginsFolder, runnable);
  }

  @Override
  public void run() {
    Database db = getDatabase();
    if (db instanceof SqliteDatabase) {
      throw new ImporterException("Can't import from running database");
    }

    try (Database source = new SqliteDatabase(getOutput(), getPluginsFolder())) {
      Iterator<OwningState> it = source.getOwnings();
      OwningState owning;
      while ((owning = it.next()) != null) {
        if (!db.getOwner(owning.getOwnable()).isPresent() && owning.getUser().isPresent()) {
          db.enqueue(DatabaseAction.newOwnInstance(owning.getOwnable(), owning.getUser().get()));
        }
      }
    } catch (SQLException | ClassNotFoundException e) {
      getOutput().printException(e);
    }
    finished();
  }
}