| /* |
| * Copyright (c) 2016, 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 com.sun.tools.jdeps; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.lang.module.ModuleDescriptor; |
| import java.util.Comparator; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| |
| import static com.sun.tools.jdeps.Analyzer.NOT_FOUND; |
| |
| /** |
| * Analyze module dependences and any reference to JDK internal APIs. |
| * It can apply transition reduction on the resulting module graph. |
| * |
| * The result prints one line per module it depends on |
| * one line per JDK internal API package it references: |
| * $MODULE[/$PACKAGE] |
| * |
| */ |
| public class ModuleExportsAnalyzer extends DepsAnalyzer { |
| // source archive to its dependences and JDK internal APIs it references |
| private final Map<Archive, Map<Archive,Set<String>>> deps = new HashMap<>(); |
| private final boolean reduced; |
| private final PrintWriter writer; |
| public ModuleExportsAnalyzer(JdepsConfiguration config, |
| JdepsFilter filter, |
| boolean reduced, |
| PrintWriter writer) { |
| super(config, filter, null, |
| Analyzer.Type.PACKAGE, |
| false /* all classes */); |
| this.reduced = reduced; |
| this.writer = writer; |
| } |
| |
| @Override |
| public boolean run() throws IOException { |
| // analyze dependences |
| boolean rc = super.run(); |
| |
| // A visitor to record the module-level dependences as well as |
| // use of JDK internal APIs |
| Analyzer.Visitor visitor = (origin, originArchive, target, targetArchive) -> { |
| Set<String> jdkInternals = |
| deps.computeIfAbsent(originArchive, _k -> new HashMap<>()) |
| .computeIfAbsent(targetArchive, _k -> new HashSet<>()); |
| |
| Module module = targetArchive.getModule(); |
| if (originArchive.getModule() != module && |
| module.isJDK() && !module.isExported(target)) { |
| // use of JDK internal APIs |
| jdkInternals.add(target); |
| } |
| }; |
| |
| // visit the dependences |
| archives.stream() |
| .filter(analyzer::hasDependences) |
| .sorted(Comparator.comparing(Archive::getName)) |
| .forEach(archive -> analyzer.visitDependences(archive, visitor)); |
| |
| |
| // print the dependences on named modules |
| printDependences(); |
| |
| // print the dependences on unnamed module |
| deps.values().stream() |
| .flatMap(map -> map.keySet().stream()) |
| .filter(archive -> !archive.getModule().isNamed()) |
| .map(archive -> archive != NOT_FOUND |
| ? "unnamed module: " + archive.getPathName() |
| : archive.getPathName()) |
| .distinct() |
| .sorted() |
| .forEach(archive -> writer.format(" %s%n", archive)); |
| |
| return rc; |
| } |
| |
| private void printDependences() { |
| // find use of JDK internals |
| Map<Module, Set<String>> jdkinternals = new HashMap<>(); |
| dependenceStream() |
| .flatMap(map -> map.entrySet().stream()) |
| .filter(e -> e.getValue().size() > 0) |
| .forEach(e -> jdkinternals.computeIfAbsent(e.getKey().getModule(), |
| _k -> new HashSet<>()) |
| .addAll(e.getValue())); |
| |
| |
| // build module graph |
| ModuleGraphBuilder builder = new ModuleGraphBuilder(configuration); |
| Module root = new RootModule("root"); |
| builder.addModule(root); |
| // find named module dependences |
| dependenceStream() |
| .flatMap(map -> map.keySet().stream()) |
| .filter(m -> m.getModule().isNamed() |
| && !configuration.rootModules().contains(m)) |
| .map(Archive::getModule) |
| .forEach(m -> builder.addEdge(root, m)); |
| |
| // module dependences |
| Set<Module> modules = builder.build().adjacentNodes(root); |
| |
| // if reduced is set, apply transition reduction |
| Set<Module> reducedSet; |
| if (reduced) { |
| Set<Module> nodes = builder.reduced().adjacentNodes(root); |
| if (nodes.size() == 1) { |
| // java.base only |
| reducedSet = nodes; |
| } else { |
| // java.base is mandated and can be excluded from the reduced graph |
| reducedSet = nodes.stream() |
| .filter(m -> !"java.base".equals(m.name()) || |
| jdkinternals.containsKey("java.base")) |
| .collect(Collectors.toSet()); |
| } |
| } else { |
| reducedSet = modules; |
| } |
| |
| modules.stream() |
| .sorted(Comparator.comparing(Module::name)) |
| .forEach(m -> { |
| if (jdkinternals.containsKey(m)) { |
| jdkinternals.get(m).stream() |
| .sorted() |
| .forEach(pn -> writer.format(" %s/%s%n", m, pn)); |
| } else if (reducedSet.contains(m)){ |
| // if the transition reduction is applied, show the reduced graph |
| writer.format(" %s%n", m); |
| } |
| }); |
| } |
| |
| /* |
| * Returns a stream of dependence map from an Archive to the set of JDK |
| * internal APIs being used. |
| */ |
| private Stream<Map<Archive, Set<String>>> dependenceStream() { |
| return deps.keySet().stream() |
| .filter(source -> !source.getModule().isNamed() |
| || configuration.rootModules().contains(source)) |
| .map(deps::get); |
| } |
| |
| private class RootModule extends Module { |
| final ModuleDescriptor descriptor; |
| RootModule(String name) { |
| super(name); |
| |
| ModuleDescriptor.Builder builder = ModuleDescriptor.module(name); |
| this.descriptor = builder.build(); |
| } |
| |
| @Override |
| public ModuleDescriptor descriptor() { |
| return descriptor; |
| } |
| } |
| |
| } |