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 */
25package jdk.tools.jlink.internal;
26
27import java.nio.file.Path;
28import java.util.Objects;
29import jdk.tools.jlink.plugin.ResourcePoolEntry;
30
31public final class ResourcePoolEntryFactory {
32    private ResourcePoolEntryFactory() {}
33
34    public static ResourcePoolEntry create(String path,
35            ResourcePoolEntry.Type type, byte[] content) {
36        return new ByteArrayResourcePoolEntry(moduleFrom(path), path, type, content);
37    }
38
39    public static ResourcePoolEntry create(String path,
40            ResourcePoolEntry.Type type, Path file) {
41        return new PathResourcePoolEntry(moduleFrom(path), path, type, file);
42    }
43
44    public static ResourcePoolEntry create(ResourcePoolEntry original, byte[] content) {
45        return new ByteArrayResourcePoolEntry(original.moduleName(),
46                original.path(), original.type(), content);
47    }
48
49    public static ResourcePoolEntry create(ResourcePoolEntry original, Path file) {
50        return new PathResourcePoolEntry(original.moduleName(),
51                original.path(), original.type(), file);
52    }
53
54    public static ResourcePoolEntry createSymbolicLink(String path,
55                                                       ResourcePoolEntry.Type type,
56                                                       ResourcePoolEntry target) {
57        return new SymLinkResourcePoolEntry(moduleFrom(path), path, type, target);
58    }
59
60    private static String moduleFrom(String path) {
61        Objects.requireNonNull(path);
62        if (path.isEmpty() || path.charAt(0) != '/') {
63            throw new IllegalArgumentException(path + " must start with /");
64        }
65        String noRoot = path.substring(1);
66        int idx = noRoot.indexOf('/');
67        if (idx == -1) {
68            throw new IllegalArgumentException("/ missing after module: " + path);
69        }
70        return noRoot.substring(0, idx);
71    }
72}
73