/*

 * Copyright (c)  2017, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package jdk.incubator.sql2;

import java.util.ServiceLoader;

import java.util.ServiceLoader.Provider;

/**

 * This interface supports injecting a {@link DataSourceFactory}. The SPI

 * mechanism will find {@link DataSourceFactory} implementations with the

 * given class name.

 * 

 * Implementations must be thread safe.

 *

 */

public interface DataSourceFactory {

  /**

   * Uses SPI to find a {@link DataSourceFactory} with the requested name or

   * {@code null} if one is not found.

   *

   * @param name the name of the class that implements the factory

   * @return a {@link DataSourceFactory} for {@code name} or {@code null} if one

   * is not found

   */

    if (name == null) throw new IllegalArgumentException("DataSourceFactory name is null");

            .load(DataSourceFactory.class)

            .stream()

            .filter(p -> p.type().getName().equals(name))

            .findFirst()

            .map(Provider::get)

            .orElse(null);

  }

  /**

   * Returns a new {@link DataSource} builder.

   *

   * @return a {@link DataSource} builder. Not {@code null}.

   */

  public DataSource.Builder builder();

}