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 static org.apache.arrow.driver.jdbc.utils.ArrowFlightConnectionConfigImpl.ArrowFlightConnectionProperty;
  
  import java.io.PrintWriter;
  import java.sql.SQLException;
  import java.sql.SQLFeatureNotSupportedException;
  import java.util.Properties;
  import java.util.logging.Logger;
  import javax.sql.DataSource;
  import org.apache.arrow.driver.jdbc.utils.ArrowFlightConnectionConfigImpl;
  import org.apache.arrow.util.Preconditions;
  
  /** {@link DataSource} implementation for Arrow Flight JDBC Driver. */
  public class ArrowFlightJdbcDataSource implements DataSource {
    private final Properties properties;
    private final ArrowFlightConnectionConfigImpl config;
    private PrintWriter logWriter;
  
    /** Instantiates a new DataSource. */
    protected ArrowFlightJdbcDataSource(
        final Properties properties, final ArrowFlightConnectionConfigImpl config) {
      this.properties = Preconditions.checkNotNull(properties);
      this.config = Preconditions.checkNotNull(config);
    }
  
    /**
     * Gets the {@link #config} for this {@link ArrowFlightJdbcDataSource}.
     *
     * @return the {@link ArrowFlightConnectionConfigImpl}.
     */
    protected final ArrowFlightConnectionConfigImpl getConfig() {
      return config;
    }
  
    /**
     * Gets a copy of the {@link #properties} for this {@link ArrowFlightJdbcDataSource} with the
     * provided {@code username} and {@code password}.
     *
     * @return the {@link Properties} for this data source.
     */
    protected final Properties getProperties(final String username, final String password) {
      final Properties newProperties = new Properties();
      newProperties.putAll(this.properties);
      if (username != null) {
        newProperties.replace(ArrowFlightConnectionProperty.USER.camelName(), username);
      }
      if (password != null) {
        newProperties.replace(ArrowFlightConnectionProperty.PASSWORD.camelName(), password);
      }
      return ArrowFlightJdbcDriver.lowerCasePropertyKeys(newProperties);
    }
  
    /**
     * Creates a new {@link ArrowFlightJdbcDataSource}.
     *
     * @param properties the properties.
     * @return a new data source.
     */
    public static ArrowFlightJdbcDataSource createNewDataSource(final Properties properties) {
      return new ArrowFlightJdbcDataSource(
          properties, new ArrowFlightConnectionConfigImpl(properties));
    }
  
    @Override
    public ArrowFlightConnection getConnection() throws SQLException {
      return getConnection(config.getUser(), config.getPassword());
    }
  
    @Override
    public ArrowFlightConnection getConnection(final String username, final String password)
        throws SQLException {
      final Properties properties = getProperties(username, password);
      return new ArrowFlightJdbcDriver().connect(config.url(), properties);
    }
  
    @Override
    public <T> T unwrap(Class<T> aClass) throws SQLException {
      throw new SQLException("ArrowFlightJdbcDataSource is not a wrapper.");
    }
  
    @Override
    public boolean isWrapperFor(Class<?> aClass) {
      return false;
    }
  
    @Override
    public PrintWriter getLogWriter() {
      return this.logWriter;
    }
  
    @Override
    public void setLogWriter(PrintWriter logWriter) {
      this.logWriter = logWriter;
    }
  
    @Override
    public void setLoginTimeout(int timeout) throws SQLException {
      throw new SQLFeatureNotSupportedException("Setting Login timeout is not supported.");
    }
  
    @Override
    public int getLoginTimeout() {
      return 0;
    }
  
    @Override
    public Logger getParentLogger() {
      return Logger.getLogger("ArrowFlightJdbc");
    }
  }
  