1/*
2 * Copyright (c) 2017, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24package jdk.tools.jaotc.collect;
25
26import java.nio.file.Path;
27import java.util.function.BiConsumer;
28
29public interface ClassSource {
30    static boolean pathIsClassFile(Path entry) {
31        String fileName = entry.getFileName().toString();
32        return fileName.endsWith(".class") && !fileName.endsWith("module-info.class");
33    }
34
35    static String stripRoot(Path path) {
36        if (path.getRoot() != null) {
37            String root = path.getRoot().toString();
38            String filename = path.toString().substring(root.length());
39            String separator = path.getFileSystem().getSeparator();
40            while (filename.startsWith(separator)) {
41                filename = filename.substring(separator.length());
42            }
43            return filename;
44        }
45
46        return path.toString();
47    }
48
49    static String makeClassName(Path path) {
50        String fileName = path.toString();
51
52        if (!fileName.endsWith(".class")) {
53            throw new IllegalArgumentException("File doesn't end with .class: '" + fileName + "'");
54        }
55
56        fileName = stripRoot(path);
57
58        String className = fileName.substring(0, fileName.length() - ".class".length());
59        className = className.replace(path.getFileSystem().getSeparator(), ".");
60        return className;
61    }
62
63    void eachClass(BiConsumer<String, ClassLoader> consumer);
64}
65