/*

 * Copyright (c) 2014, 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 com.sun.tools.javac.platform;

import java.io.Closeable;

import java.io.IOException;

import java.nio.file.Path;

import java.util.Collection;

import java.util.List;

import java.util.Map;

import javax.annotation.processing.Processor;

import com.sun.source.util.Plugin;

/**A description of settings needed for a particular {@code -release name} option.

 *

 *  <p><b>This is NOT part of any supported API.

 *  If you write code that depends on this, you do so at your own risk.

 *  This code and its internal interfaces are subject to change or

 *  deletion without notice.</b>

 */

public interface PlatformDescription extends Closeable {

    /**Returns paths that should be used as the current platform's bootclasspath, or null if

     * the default should be used.

     *

     * @return the current platforms's bootclasspath, or null for default

     */

    Collection<Path> getPlatformPath();

    /**Returns the source version that should be selected.

     * Equivalent to {@code -source N} on the command line.

     *

     * @return the required source version

     */

    String getSourceVersion();

    /**Returns the target version that should be selected.

     * Equivalent to {@code -target N} on the command line.

     *

     * @return the required target version

     */

    String getTargetVersion();

    /**Returns the description of annotation Processor or javac Plugin that should be enabled

     * in the current javac run.

     *

     * @param <T> either Processor or Plugin

     */

    interface PluginInfo<T> {

        /**Returns the name of the Processor or Plugin.

         *

         * @return name of the Processor or Plugin.

         */

        String getName();

        /**Returns the options for the Processor or Plugin. For plugin, the map will be converted to a collection

         * by concatenating the map's keys, the '=' sign and the map's values.

         *

         *

         * @return the options

         */

        Map<String, String> getOptions();

        /**Returns the Processor or Plugin instance.

         *

         * @return the Processor or Plugin instance.

         */

        T getPlugin();

    }

    /**Returns the annotation Processors that should be enabled in the current javac run.

     *

     * @return annotation Processors

     */

    List<PluginInfo<Processor>> getAnnotationProcessors();

    /**Returns the javac Plugins that should be enabled in the current javac run.

     *

     * @return javac Plugins

     */

    List<PluginInfo<Plugin>> getPlugins();

    /**Returns the additional command line options that should be passed to javac.

     *

     * @return additional command line options

     */

    List<String> getAdditionalOptions();

    /**Perform cleanup for this PlatformProvider - this instance won't be used after this method

     * is called.

     *

     * @throws IOException if unexpected problems occur during closing this provider

     */

    void close() throws IOException;

}