/*

 * Copyright (c) 2014, 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

 * 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.

 */

import java.util.Arrays;

import java.util.Collection;

import java.util.Collections;

import java.util.ServiceLoader;

import java.util.concurrent.CopyOnWriteArrayList;

/**

 * BasicBundlers

 *

 * A basic bundlers collection that loads the default bundlers.

 * Loads the common bundlers.

 * <UL>

 *     <LI>Windows file image</LI>

 *     <LI>Mac .app</LI>

 *     <LI>Linux file image</LI>

 *     <LI>Windows MSI</LI>

 *     <LI>Windows EXE</LI>

 *     <LI>Mac DMG</LI>

 *     <LI>Mac PKG</LI>

 *     <LI>Linux DEB</LI>

 *     <LI>Linux RPM</LI>

 *

 * </UL>

 */

public class BasicBundlers implements Bundlers {

    boolean defaultsLoaded = false;

    private final Collection<Bundler> bundlers = new CopyOnWriteArrayList<>();

    @Override

    public Collection<Bundler> getBundlers() {

        return Collections.unmodifiableCollection(bundlers);

    }

    @Override

    public Collection<Bundler> getBundlers(String type) {

        if (type == null) return Collections.emptySet();

        switch (type) {

            case "NONE":

                return Collections.emptySet();

            case "ALL":

                return getBundlers();

            default:

                return Arrays.asList(getBundlers().stream()

                        .filter(b -> type.equalsIgnoreCase(b.getBundleType()))

                        .toArray(Bundler[]::new));

        }

    }

    // Loads bundlers from the META-INF/services direct

    @Override

    public void loadBundlersFromServices(ClassLoader cl) {

        ServiceLoader<Bundler> loader = ServiceLoader.load(Bundler.class, cl);

        for (Bundler aLoader : loader) {

            bundlers.add(aLoader);

        }

    }

}