/*

 * Copyright (c) 2007, 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.nio.zipfs;

import java.net.URI;

import java.net.URISyntaxException;

import java.nio.file.FileSystem;

import java.nio.file.Path;

import java.nio.file.Paths;

class JarFileSystemProvider extends ZipFileSystemProvider {

    @Override

    public String getScheme() {

        return "jar";

    }

    @Override

    protected Path uriToPath(URI uri) {

        String scheme = uri.getScheme();

        if ((scheme == null) || !scheme.equalsIgnoreCase(getScheme())) {

            throw new IllegalArgumentException("URI scheme is not '" + getScheme() + "'");

        }

        try {

            String uristr = uri.toString();

            int end = uristr.indexOf("!/");

            uristr = uristr.substring(4, (end == -1) ? uristr.length() : end);

            uri = new URI(uristr);

            return Paths.get(new URI("file", uri.getHost(), uri.getPath(), null))

                        .toAbsolutePath();

        } catch (URISyntaxException e) {

            throw new AssertionError(e); //never thrown

        }

    }

    @Override

    public Path getPath(URI uri) {

        FileSystem fs = getFileSystem(uri);

        String path = uri.getFragment();

        if (path == null) {

            String uristr = uri.toString();

            int off = uristr.indexOf("!/");

            if (off != -1)

                path = uristr.substring(off + 2);

        }

        if (path != null)

            return fs.getPath(path);

        throw new IllegalArgumentException("URI: "

            + uri

            + " does not contain path fragment ex. jar:///c:/foo.zip!/BAR");

    }

}