/*

 * Copyright (c) 2016, 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

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package jdk.tools.jlink.internal.plugins;

import java.util.HashSet;

import java.util.Map;

import java.util.Set;

import jdk.tools.jlink.plugin.Plugin;

import jdk.tools.jlink.plugin.PluginException;

import jdk.tools.jlink.plugin.ResourcePool;

import jdk.tools.jlink.plugin.ResourcePoolBuilder;

import jdk.tools.jlink.plugin.ResourcePoolEntry.Type;

/**

 *

 * A plugin to exclude a JMOD section such as man pages or header files

 */

public final class ExcludeJmodSectionPlugin implements Plugin {

    public static final String NAME = "exclude-jmod-section";

    public static final String MAN_PAGES = "man";

    public static final String INCLUDE_HEADER_FILES = "headers";

    private final Set<Type> filters = new HashSet<>();

    @Override

    public String getName() {

        return NAME;

    }

    @Override

    public void configure(Map<String, String> config) {

        String arg = config.get(NAME);

        if (arg.isEmpty()) {

            throw new IllegalArgumentException("Section name must be specified");

        }

        switch (arg) {

            case MAN_PAGES:

                filters.add(Type.MAN_PAGE);

                break;

            case INCLUDE_HEADER_FILES:

                filters.add(Type.HEADER_FILE);

                break;

            default:

                throw new IllegalArgumentException("Invalid section name: " + arg);

        }

    }

    @Override

    public ResourcePool transform(ResourcePool in, ResourcePoolBuilder out) {

        in.transformAndCopy(entry -> {

            // filter entries whose type corresponds to the specified JMOD section

            if (filters.contains(entry.type())) {

                entry = null;

            }

            return entry;

        }, out);

        return out.build();

    }

    @Override

    public Category getType() {

        return Category.FILTER;

    }

    @Override

    public String getDescription() {

        return PluginsResourceBundle.getDescription(NAME);

    }

    @Override

    public boolean hasArguments() {

        return true;

    }

    @Override

    public String getArgumentsDescription() {

       return PluginsResourceBundle.getArgument(NAME);

    }

}