| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package jdk.internal.module; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.UncheckedIOException; |
| import java.lang.module.ModuleDescriptor; |
| import java.lang.module.ModuleFinder; |
| import java.lang.module.ModuleReference; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import static java.nio.charset.StandardCharsets.*; |
| |
| /** |
| * Generates the maps of concealed and exported packages to open at run-time. |
| * |
| * This is used at run-time for exploded builds, and at link-time to generate |
| * the maps for the system modules in the run-time image. |
| */ |
| |
| public class IllegalAccessMaps { |
| private final Map<String, Set<String>> concealedPackagesToOpen; |
| private final Map<String, Set<String>> exportedPackagesToOpen; |
| |
| private IllegalAccessMaps(Map<String, Set<String>> map1, |
| Map<String, Set<String>> map2) { |
| this.concealedPackagesToOpen = map1; |
| this.exportedPackagesToOpen = map2; |
| } |
| |
| /** |
| * Returns the map of concealed packages to open. The map key is the |
| * module name, the value is the set of concealed packages to open. |
| */ |
| public Map<String, Set<String>> concealedPackagesToOpen() { |
| return concealedPackagesToOpen; |
| } |
| |
| /** |
| * Returns the map of exported packages to open. The map key is the |
| * module name, the value is the set of exported packages to open. |
| */ |
| public Map<String, Set<String>> exportedPackagesToOpen() { |
| return exportedPackagesToOpen; |
| } |
| |
| /** |
| * Generate the maps of module to concealed and exported packages for |
| * the system modules that are observable with the given module finder. |
| */ |
| public static IllegalAccessMaps generate(ModuleFinder finder) { |
| Map<String, ModuleDescriptor> map = new HashMap<>(); |
| finder.findAll().stream() |
| .map(ModuleReference::descriptor) |
| .forEach(md -> md.packages().forEach(pn -> map.putIfAbsent(pn, md))); |
| |
| Map<String, Set<String>> concealedPackagesToOpen = new HashMap<>(); |
| Map<String, Set<String>> exportedPackagesToOpen = new HashMap<>(); |
| |
| String rn = "jdk8_packages.dat"; |
| InputStream in = IllegalAccessMaps.class.getResourceAsStream(rn); |
| if (in == null) { |
| throw new InternalError(rn + " not found"); |
| } |
| try (BufferedReader br = new BufferedReader(new InputStreamReader(in, UTF_8))) { |
| br.lines() |
| .filter(line -> !line.isEmpty() && !line.startsWith("#")) |
| .forEach(pn -> { |
| ModuleDescriptor descriptor = map.get(pn); |
| if (descriptor != null && !isOpen(descriptor, pn)) { |
| String name = descriptor.name(); |
| if (isExported(descriptor, pn)) { |
| exportedPackagesToOpen.computeIfAbsent(name, |
| k -> new HashSet<>()).add(pn); |
| } else { |
| concealedPackagesToOpen.computeIfAbsent(name, |
| k -> new HashSet<>()).add(pn); |
| } |
| } |
| }); |
| |
| } catch (IOException ioe) { |
| throw new UncheckedIOException(ioe); |
| } |
| |
| return new IllegalAccessMaps(concealedPackagesToOpen, exportedPackagesToOpen); |
| } |
| |
| private static boolean isExported(ModuleDescriptor descriptor, String pn) { |
| return descriptor.exports() |
| .stream() |
| .anyMatch(e -> e.source().equals(pn) && !e.isQualified()); |
| } |
| |
| private static boolean isOpen(ModuleDescriptor descriptor, String pn) { |
| return descriptor.opens() |
| .stream() |
| .anyMatch(e -> e.source().equals(pn) && !e.isQualified()); |
| } |
| } |