1 /*

     2  * Copyright (c) 2016, 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 package jdk.tools.jlink.internal;

    26 

    27 import java.nio.file.Path;

    28 import java.util.Objects;

    29 import jdk.tools.jlink.plugin.ModuleEntry;

    30 

    31 public final class ModuleEntryFactory {

    32     private ModuleEntryFactory() {}

    33 

    34     public static ModuleEntry create(String path,

    35             ModuleEntry.Type type, byte[] content) {

    36         return new ByteArrayModuleEntry(moduleFrom(path), path, type, content);

    37     }

    38 

    39     public static ModuleEntry create(String path,

    40             ModuleEntry.Type type, Path file) {

    41         return new PathModuleEntry(moduleFrom(path), path, type, file);

    42     }

    43 

    44     public static ModuleEntry create(ModuleEntry original, byte[] content) {

    45         return new ByteArrayModuleEntry(original.getModule(),

    46                 original.getPath(), original.getType(), content);

    47     }

    48 

    49     public static ModuleEntry create(ModuleEntry original, Path file) {

    50         return new PathModuleEntry(original.getModule(),

    51                 original.getPath(), original.getType(), file);

    52     }

    53 

    54     static String moduleFrom(String path) {

    55         Objects.requireNonNull(path);

    56         if (path.isEmpty() || path.charAt(0) != '/') {

    57             throw new IllegalArgumentException(path + " must start with /");

    58         }

    59         int idx = path.indexOf('/', 1);

    60         if (idx == -1) {

    61             throw new IllegalArgumentException("/ missing after module: " + path);

    62         }

    63         return path.substring(1, idx);

    64     }

    65 

    66     static String packageFrom(String path) {

    67         Objects.requireNonNull(path);

    68         int idx = path.lastIndexOf('/');

    69         if (idx == -1) {

    70             throw new IllegalArgumentException("/ missing from path: " + path);

    71         }

    72         if (path.startsWith("/")) {

    73             int jdx = path.indexOf('/', 1);

    74             if (jdx == -1) {

    75                 throw new IllegalArgumentException("/ missing after module: " + path);

    76             }

    77             return path.substring(jdx + 1, idx);

    78         } else {

    79             return path.substring(0, idx);

    80         }

    81     }

    82 }