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  package org.apache.cayenne.dba.mariadb;
  
  import java.sql.DatabaseMetaData;
  import java.sql.SQLException;
  
  import org.apache.cayenne.configuration.runtime.DbAdapterDetector;
  import org.apache.cayenne.dba.DbAdapter;
  import org.apache.cayenne.dba.mysql.MySQLAdapter;
  import org.apache.cayenne.di.AdhocObjectFactory;
  import org.apache.cayenne.di.Inject;
  
  public class MariaDBSniffer implements DbAdapterDetector {
  
      public static final String DEFAULT_STORAGE_ENGINE = "InnoDB";
      protected AdhocObjectFactory objectFactory;
  
      public MariaDBSniffer(@Inject AdhocObjectFactory objectFactory) {
          this.objectFactory = objectFactory;
      }
  
      @Override
      public DbAdapter createAdapter(DatabaseMetaData md) throws SQLException {
          String dbName = md.getDatabaseProductName();
          if(dbName == null || !dbName.toUpperCase().contains("MARIADB")) {
              return null;
          }
  
          MySQLAdapter adapter = objectFactory.newInstance(MySQLAdapter.class, MySQLAdapter.class.getName());
          adapter.setStorageEngine(DEFAULT_STORAGE_ENGINE);
          return adapter;
      }
  }
  