content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.arrow.driver.jdbc;
  
  import java.sql.ResultSetMetaData;
  import java.sql.SQLException;
  import java.util.Properties;
  import java.util.TimeZone;
  import org.apache.arrow.driver.jdbc.client.ArrowFlightSqlClientHandler;
  import org.apache.arrow.memory.RootAllocator;
  import org.apache.calcite.avatica.AvaticaConnection;
  import org.apache.calcite.avatica.AvaticaFactory;
  import org.apache.calcite.avatica.AvaticaResultSetMetaData;
  import org.apache.calcite.avatica.AvaticaSpecificDatabaseMetaData;
  import org.apache.calcite.avatica.AvaticaStatement;
  import org.apache.calcite.avatica.Meta;
  import org.apache.calcite.avatica.QueryState;
  import org.apache.calcite.avatica.UnregisteredDriver;
  
  /** Factory for the Arrow Flight JDBC Driver. */
  public class ArrowFlightJdbcFactory implements AvaticaFactory {
    private final int major;
    private final int minor;
  
    // This need to be public so Avatica can call this constructor
    public ArrowFlightJdbcFactory() {
      this(4, 1);
    }
  
    private ArrowFlightJdbcFactory(final int major, final int minor) {
      this.major = major;
      this.minor = minor;
    }
  
    @Override
    public AvaticaConnection newConnection(
        final UnregisteredDriver driver,
        final AvaticaFactory factory,
        final String url,
        final Properties info)
        throws SQLException {
      return ArrowFlightConnection.createNewConnection(
          (ArrowFlightJdbcDriver) driver, factory, url, info, new RootAllocator(Long.MAX_VALUE));
    }
  
    @Override
    public AvaticaStatement newStatement(
        final AvaticaConnection connection,
        final Meta.StatementHandle handle,
        final int resultType,
        final int resultSetConcurrency,
        final int resultSetHoldability) {
      return new ArrowFlightStatement(
          (ArrowFlightConnection) connection,
          handle,
          resultType,
          resultSetConcurrency,
          resultSetHoldability);
    }
  
    @Override
    public ArrowFlightPreparedStatement newPreparedStatement(
        final AvaticaConnection connection,
        final Meta.StatementHandle statementHandle,
        final Meta.Signature signature,
        final int resultType,
        final int resultSetConcurrency,
        final int resultSetHoldability)
        throws SQLException {
      final ArrowFlightConnection flightConnection = (ArrowFlightConnection) connection;
      ArrowFlightSqlClientHandler.PreparedStatement preparedStatement =
          flightConnection.getMeta().getPreparedStatement(statementHandle);
  
      return ArrowFlightPreparedStatement.newPreparedStatement(
          flightConnection,
          preparedStatement,
          statementHandle,
          signature,
          resultType,
          resultSetConcurrency,
          resultSetHoldability);
    }
  
    @Override
    public ArrowFlightJdbcVectorSchemaRootResultSet newResultSet(
        final AvaticaStatement statement,
        final QueryState state,
        final Meta.Signature signature,
        final TimeZone timeZone,
        final Meta.Frame frame)
        throws SQLException {
      final ResultSetMetaData metaData = newResultSetMetaData(statement, signature);
  
      return new ArrowFlightJdbcFlightStreamResultSet(
          statement, state, signature, metaData, timeZone, frame);
    }
  
    @Override
    public AvaticaSpecificDatabaseMetaData newDatabaseMetaData(final AvaticaConnection connection) {
      return new ArrowDatabaseMetadata(connection);
    }
  
    @Override
    public ResultSetMetaData newResultSetMetaData(
        final AvaticaStatement avaticaStatement, final Meta.Signature signature) {
      return new AvaticaResultSetMetaData(avaticaStatement, null, signature);
    }
  
    @Override
    public int getJdbcMajorVersion() {
      return major;
    }
  
    @Override
    public int getJdbcMinorVersion() {
      return minor;
    }
  }
  