ModuleHelper.java revision 12723:afedee84773e 
1/*
2 * Copyright (c) 2015, 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
24import java.net.URI;
25import java.lang.module.ModuleDescriptor;
26import java.util.Collections;
27import java.util.HashSet;
28import java.util.Set;
29
30import sun.hotspot.WhiteBox;
31
32public class ModuleHelper {
33
34    public static void DefineModule(Object module, String version, String location,
35                                    String[] pkgs) throws Throwable {
36        WhiteBox wb = WhiteBox.getWhiteBox();
37        wb.DefineModule(module, version, location, pkgs);
38    }
39
40    public static void AddModuleExports(Object from, String pkg, Object to) throws Throwable {
41        WhiteBox wb = WhiteBox.getWhiteBox();
42        wb.AddModuleExports(from, pkg, to);
43        java.lang.ModuleHelper.addExportsNoSync((Module)from, pkg, (Module)to);
44    }
45
46    public static void AddReadsModule(Object from, Object to) throws Throwable {
47        WhiteBox wb = WhiteBox.getWhiteBox();
48        wb.AddReadsModule(from, to);
49        java.lang.ModuleHelper.addReadsNoSync((Module)from, (Module)to);
50    }
51
52    public static void AddModulePackage(Object m, String pkg) throws Throwable {
53        WhiteBox wb = WhiteBox.getWhiteBox();
54        wb.AddModulePackage(m, pkg);
55        java.lang.ModuleHelper.addPackageNoSync((Module)m, pkg);
56    }
57
58    public static Module GetModuleByPackageName(Object ldr, String pkg) throws Throwable {
59        WhiteBox wb = WhiteBox.getWhiteBox();
60        return (Module)wb.GetModuleByPackageName(ldr, pkg);
61    }
62
63    public static void AddModuleExportsToAllUnnamed(Object m, String pkg) throws Throwable {
64        WhiteBox wb = WhiteBox.getWhiteBox();
65        wb.AddModuleExportsToAllUnnamed(m, pkg);
66        //java.lang.ModuleHelper.addExportsToAllUnnamedNoSync((Module)m, pkg);
67    }
68
69    public static void AddModuleExportsToAll(Object m, String pkg) throws Throwable {
70        WhiteBox wb = WhiteBox.getWhiteBox();
71        wb.AddModuleExportsToAll(m, pkg);
72        java.lang.ModuleHelper.addExportsNoSync((Module)m, pkg, (Module)null);
73    }
74
75    public static Module ModuleObject(String name, ClassLoader loader, String[] pkgs) throws Throwable {
76        Set<String> pkg_set = new HashSet<>();
77        if (pkgs != null) {
78            for (String pkg: pkgs) {
79                pkg_set.add(pkg.replace('/', '.'));
80            }
81        } else {
82            pkg_set = Collections.emptySet();
83        }
84
85        ModuleDescriptor descriptor =
86            ModuleDescriptor.newModule(name).packages(pkg_set).build();
87        URI uri = URI.create("module:/" + name);
88
89        return java.lang.ModuleHelper.newModule(loader, descriptor);
90    }
91
92}
93