1 /*

     2  * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package jdk.nio.zipfs;

    27 

    28 import java.net.URI;

    29 import java.net.URISyntaxException;

    30 import java.nio.file.FileSystem;

    31 import java.nio.file.Path;

    32 import java.nio.file.Paths;

    33 

    34 class JarFileSystemProvider extends ZipFileSystemProvider {

    35 

    36     @Override

    37     public String getScheme() {

    38         return "jar";

    39     }

    40 

    41     @Override

    42     protected Path uriToPath(URI uri) {

    43         String scheme = uri.getScheme();

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

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

    46         }

    47         try {

    48             String uristr = uri.toString();

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

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

    51             uri = new URI(uristr);

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

    53                         .toAbsolutePath();

    54         } catch (URISyntaxException e) {

    55             throw new AssertionError(e); //never thrown

    56         }

    57     }

    58 

    59     @Override

    60     public Path getPath(URI uri) {

    61         FileSystem fs = getFileSystem(uri);

    62         String path = uri.getFragment();

    63         if (path == null) {

    64             String uristr = uri.toString();

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

    66             if (off != -1)

    67                 path = uristr.substring(off + 2);

    68         }

    69         if (path != null)

    70             return fs.getPath(path);

    71         throw new IllegalArgumentException("URI: "

    72             + uri

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

    74     }

    75 }