/*

 * Copyright (c) 2019, 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

 * 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.

 *

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package jdk.incubator.jpackage;

import jdk.incubator.jpackage.internal.JPackageToolProvider;

import java.io.PrintWriter;

import java.util.Optional;

import java.util.spi.ToolProvider;

/**

 * A factory class to obtain a {@linkplain ToolProvider tool provider}

 * for the incubating {@code jpackage} tool.

 * 

 * It is planned to implement {@code jpackage} tool as a service provider

 * to {@link ToolProvider} in a future release at which point

 * {@link ToolProvider#findFirst} can be used to look up jpackage tool.

 *

 * @since   14

 */

public class ToolProviderFactory { 

    private static ToolProvider provider = new JPackageToolProvider();

    // Prevent creating an instance of this class

    private ToolProviderFactory() {

    }

    /**

     * Returns an {@link Optional} containing the {@code ToolProvider}

     * if the given toolname is "jpackage". Returns an empty

     * {@code Optional} if the given toolname is not "jpackage".

     *

     * @param   toolname {@code String} name of tool to look for.

     * @return  an {@link Optional} containing the {@code ToolPovider}

     *

     * @since 14

     */

    public static Optional<ToolProvider> findFirst(String toolName) {

        if ("jpackage".equals(toolName)) {

            return Optional.of(provider);

        } else {

            return Optional.empty();

        }

    } 

}