How to use

setInstance

method

in

liquibase.logging.LogFactory

private Liquibase getLiquibase(Connection connection) throws Exception {
  ServiceLocator sl = ServiceLocator.getInstance();
  if (!System.getProperties().containsKey("liquibase.scan.packages")) {
    if (sl.getPackages().remove("liquibase.core")) {
      sl.addPackageToScan("liquibase.core.xml");
    }
    if (sl.getPackages().remove("liquibase.parser")) {
      sl.addPackageToScan("liquibase.parser.core.xml");
    }
    if (sl.getPackages().remove("liquibase.serializer")) {
      sl.addPackageToScan("liquibase.serializer.core.xml");
    }
    sl.getPackages().remove("liquibase.ext");
    sl.getPackages().remove("liquibase.sdk");
  }
  LogFactory.setInstance(new LogWrapper());
  Database database = DatabaseFactory.getInstance().findCorrectDatabaseImplementation(new JdbcConnection(connection));
  return new Liquibase(CHANGELOG, new ClassLoaderResourceAccessor(getClass().getClassLoader()), database);
}

private Liquibase getLiquibase(Connection connection, String defaultSchema) throws Exception {
  ServiceLocator sl = ServiceLocator.getInstance();
  if (!System.getProperties().containsKey("liquibase.scan.packages")) {
    if (sl.getPackages().remove("liquibase.core")) {
      sl.addPackageToScan("liquibase.core.xml");
    }
    if (sl.getPackages().remove("liquibase.parser")) {
      sl.addPackageToScan("liquibase.parser.core.xml");
    }
    if (sl.getPackages().remove("liquibase.serializer")) {
      sl.addPackageToScan("liquibase.serializer.core.xml");
    }
    sl.getPackages().remove("liquibase.ext");
    sl.getPackages().remove("liquibase.sdk");
  }
  LogFactory.setInstance(new LogWrapper());
  Database database = DatabaseFactory.getInstance().findCorrectDatabaseImplementation(new JdbcConnection(connection));
  if (defaultSchema != null) {
    database.setDefaultSchemaName(defaultSchema);
  }
  return new Liquibase(CHANGELOG, new ClassLoaderResourceAccessor(getClass().getClassLoader()), database);
}

protected void baseLiquibaseInitialization() {
  ServiceLocator sl = ServiceLocator.getInstance();
  sl.setResourceAccessor(new ClassLoaderResourceAccessor(getClass().getClassLoader()));
  if (!System.getProperties().containsKey("liquibase.scan.packages")) {
    if (sl.getPackages().remove("liquibase.core")) {
      sl.addPackageToScan("liquibase.core.xml");
    }
    if (sl.getPackages().remove("liquibase.parser")) {
      sl.addPackageToScan("liquibase.parser.core.xml");
    }
    if (sl.getPackages().remove("liquibase.serializer")) {
      sl.addPackageToScan("liquibase.serializer.core.xml");
    }
    sl.getPackages().remove("liquibase.ext");
    sl.getPackages().remove("liquibase.sdk");
    String lockPackageName = DummyLockService.class.getPackage().getName();
    logger.debugf("Added package %s to liquibase", lockPackageName);
    sl.addPackageToScan(lockPackageName);
  }
  LogFactory.setInstance(new LogWrapper());
  // Adding PostgresPlus support to liquibase
  DatabaseFactory.getInstance().register(new PostgresPlusDatabase());
  // Adding newer version of MySQL/MariaDB support to liquibase
  DatabaseFactory.getInstance().register(new UpdatedMySqlDatabase());
  // Change command for creating lock and drop DELETE lock record from it
  SqlGeneratorFactory.getInstance().register(new CustomInsertLockRecordGenerator());
  // Use "SELECT FOR UPDATE" for locking database
  SqlGeneratorFactory.getInstance().register(new CustomLockDatabaseChangeLogGenerator());
}