author | mchung |
Wed, 15 Feb 2017 16:18:18 -0800 | |
changeset 43873 | 705d732d3715 |
child 44452 | 93f6470b1045 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.tools.jdeps; |
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import static java.lang.module.ModuleDescriptor.Requires.Modifier.*; |
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import static java.util.stream.Collectors.*; |
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|
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import java.io.BufferedWriter; |
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import java.io.IOException; |
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import java.io.PrintWriter; |
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import java.lang.module.Configuration; |
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import java.lang.module.ModuleDescriptor; |
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import java.lang.module.ModuleFinder; |
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import java.lang.module.ModuleReference; |
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import java.lang.module.ResolvedModule; |
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import java.nio.file.Files; |
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import java.nio.file.Path; |
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import java.util.ArrayDeque; |
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import java.util.ArrayList; |
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import java.util.Deque; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Objects; |
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import java.util.Set; |
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import java.util.TreeSet; |
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import java.util.function.Function; |
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import java.util.stream.Collectors; |
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import java.util.stream.Stream; |
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/** |
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* Generate dot graph for modules |
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*/ |
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public class ModuleDotGraph { |
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private final Map<String, Configuration> configurations; |
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private final boolean apiOnly; |
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public ModuleDotGraph(JdepsConfiguration config, boolean apiOnly) { |
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this(config.rootModules().stream() |
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.map(Module::name) |
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.sorted() |
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.collect(toMap(Function.identity(), mn -> config.resolve(Set.of(mn)))), |
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apiOnly); |
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} |
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public ModuleDotGraph(Map<String, Configuration> configurations, boolean apiOnly) { |
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this.configurations = configurations; |
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this.apiOnly = apiOnly; |
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} |
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/** |
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* Generate dotfile for all modules |
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* |
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* @param dir output directory |
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*/ |
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public boolean genDotFiles(Path dir) throws IOException { |
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Files.createDirectories(dir); |
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for (String mn : configurations.keySet()) { |
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Path path = dir.resolve(mn + ".dot"); |
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genDotFile(path, mn, configurations.get(mn)); |
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} |
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return true; |
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} |
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/** |
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* Generate dotfile of the given path |
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*/ |
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public void genDotFile(Path path, String name, Configuration configuration) |
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throws IOException |
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{ |
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// transitive reduction |
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Graph<String> graph = apiOnly |
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? requiresTransitiveGraph(configuration, Set.of(name)) |
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: gengraph(configuration); |
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DotGraphBuilder builder = new DotGraphBuilder(name, graph); |
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builder.subgraph("se", "java", DotGraphBuilder.ORANGE, |
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DotGraphBuilder.JAVA_SE_SUBGRAPH) |
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.subgraph("jdk", "jdk", DotGraphBuilder.BLUE, |
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DotGraphBuilder.JDK_SUBGRAPH) |
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.descriptors(graph.nodes().stream() |
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.map(mn -> configuration.findModule(mn).get() |
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.reference().descriptor())); |
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// build dot file |
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builder.build(path); |
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} |
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/** |
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* Returns a Graph of the given Configuration after transitive reduction. |
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* |
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* Transitive reduction of requires transitive edge and requires edge have |
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* to be applied separately to prevent the requires transitive edges |
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* (e.g. U -> V) from being reduced by a path (U -> X -> Y -> V) |
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* in which V would not be re-exported from U. |
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*/ |
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private Graph<String> gengraph(Configuration cf) { |
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Graph.Builder<String> builder = new Graph.Builder<>(); |
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cf.modules().stream() |
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.forEach(resolvedModule -> { |
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String mn = resolvedModule.reference().descriptor().name(); |
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builder.addNode(mn); |
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resolvedModule.reads().stream() |
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.map(ResolvedModule::name) |
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.forEach(target -> builder.addEdge(mn, target)); |
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}); |
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Graph<String> rpg = requiresTransitiveGraph(cf, builder.nodes); |
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return builder.build().reduce(rpg); |
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} |
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|
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|
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/** |
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* Returns a Graph containing only requires transitive edges |
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* with transitive reduction. |
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*/ |
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public Graph<String> requiresTransitiveGraph(Configuration cf, |
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Set<String> roots) |
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{ |
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Deque<String> deque = new ArrayDeque<>(roots); |
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Set<String> visited = new HashSet<>(); |
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Graph.Builder<String> builder = new Graph.Builder<>(); |
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144 |
|
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while (deque.peek() != null) { |
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String mn = deque.pop(); |
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if (visited.contains(mn)) |
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continue; |
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|
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visited.add(mn); |
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builder.addNode(mn); |
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ModuleDescriptor descriptor = cf.findModule(mn).get() |
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.reference().descriptor(); |
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descriptor.requires().stream() |
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.filter(d -> d.modifiers().contains(TRANSITIVE) |
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|| d.name().equals("java.base")) |
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.map(d -> d.name()) |
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.forEach(d -> { |
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deque.add(d); |
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builder.addEdge(mn, d); |
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}); |
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} |
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|
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return builder.build().reduce(); |
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} |
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166 |
|
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public static class DotGraphBuilder { |
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static final Set<String> JAVA_SE_SUBGRAPH = javaSE(); |
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static final Set<String> JDK_SUBGRAPH = jdk(); |
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|
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private static Set<String> javaSE() { |
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String root = "java.se.ee"; |
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ModuleFinder system = ModuleFinder.ofSystem(); |
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if (system.find(root).isPresent()) { |
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return Stream.concat(Stream.of(root), |
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Configuration.empty().resolve(system, |
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ModuleFinder.of(), |
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Set.of(root)) |
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.findModule(root).get() |
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.reads().stream() |
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.map(ResolvedModule::name)) |
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.collect(toSet()); |
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} else { |
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// approximation |
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return system.findAll().stream() |
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.map(ModuleReference::descriptor) |
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.map(ModuleDescriptor::name) |
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.filter(name -> name.startsWith("java.") && |
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!name.equals("java.smartcardio")) |
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.collect(Collectors.toSet()); |
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191 |
} |
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|
192 |
} |
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|
193 |
|
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194 |
private static Set<String> jdk() { |
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|
195 |
return ModuleFinder.ofSystem().findAll().stream() |
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.map(ModuleReference::descriptor) |
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197 |
.map(ModuleDescriptor::name) |
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|
198 |
.filter(name -> !JAVA_SE_SUBGRAPH.contains(name) && |
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(name.startsWith("java.") || |
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|
200 |
name.startsWith("jdk.") || |
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|
201 |
name.startsWith("javafx."))) |
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|
202 |
.collect(Collectors.toSet()); |
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|
203 |
} |
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|
204 |
|
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205 |
static class SubGraph { |
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206 |
final String name; |
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final String group; |
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208 |
final String color; |
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209 |
final Set<String> nodes; |
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SubGraph(String name, String group, String color, Set<String> nodes) { |
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this.name = Objects.requireNonNull(name); |
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this.group = Objects.requireNonNull(group); |
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this.color = Objects.requireNonNull(color); |
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this.nodes = Objects.requireNonNull(nodes); |
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|
215 |
} |
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216 |
} |
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|
217 |
|
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static final String ORANGE = "#e76f00"; |
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static final String BLUE = "#437291"; |
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static final String GRAY = "#dddddd"; |
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221 |
static final String BLACK = "#000000"; |
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|
222 |
|
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223 |
static final String FONT_NAME = "DejaVuSans"; |
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static final int FONT_SIZE = 12; |
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225 |
static final int ARROW_SIZE = 1; |
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226 |
static final int ARROW_WIDTH = 2; |
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227 |
static final int RANK_SEP = 1; |
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|
228 |
|
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229 |
static final String REEXPORTS = ""; |
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230 |
static final String REQUIRES = "style=\"dashed\""; |
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static final String REQUIRES_BASE = "color=\"" + GRAY + "\""; |
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232 |
|
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233 |
// can be configured |
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234 |
static double rankSep = RANK_SEP; |
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|
235 |
static String fontColor = BLACK; |
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|
236 |
static String fontName = FONT_NAME; |
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|
237 |
static int fontsize = FONT_SIZE; |
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|
238 |
static int arrowWidth = ARROW_WIDTH; |
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|
239 |
static int arrowSize = ARROW_SIZE; |
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240 |
static final Map<String, Integer> weights = new HashMap<>(); |
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|
241 |
static final List<Set<String>> ranks = new ArrayList<>(); |
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|
242 |
|
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243 |
private final String name; |
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244 |
private final Graph<String> graph; |
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245 |
private final Set<ModuleDescriptor> descriptors = new TreeSet<>(); |
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246 |
private final List<SubGraph> subgraphs = new ArrayList<>(); |
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247 |
public DotGraphBuilder(String name, Graph<String> graph) { |
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|
248 |
this.name = name; |
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|
249 |
this.graph = graph; |
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|
250 |
} |
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|
251 |
|
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252 |
public DotGraphBuilder descriptors(Stream<ModuleDescriptor> descriptors) { |
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253 |
descriptors.forEach(this.descriptors::add); |
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|
254 |
return this; |
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|
255 |
} |
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256 |
|
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257 |
public void build(Path filename) throws IOException { |
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|
258 |
try (BufferedWriter writer = Files.newBufferedWriter(filename); |
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259 |
PrintWriter out = new PrintWriter(writer)) { |
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260 |
|
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261 |
out.format("digraph \"%s\" {%n", name); |
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262 |
out.format(" nodesep=.5;%n"); |
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out.format(" ranksep=%f;%n", rankSep); |
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out.format(" pencolor=transparent;%n"); |
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out.format(" node [shape=plaintext, fontname=\"%s\", fontsize=%d, margin=\".2,.2\"];%n", |
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fontName, fontsize); |
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out.format(" edge [penwidth=%d, color=\"#999999\", arrowhead=open, arrowsize=%d];%n", |
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arrowWidth, arrowSize); |
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|
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// same RANKS |
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ranks.stream() |
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.map(nodes -> descriptors.stream() |
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.map(ModuleDescriptor::name) |
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.filter(nodes::contains) |
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.map(mn -> "\"" + mn + "\"") |
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.collect(joining(","))) |
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.filter(group -> group.length() > 0) |
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.forEach(group -> out.format(" {rank=same %s}%n", group)); |
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|
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subgraphs.forEach(subgraph -> { |
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out.format(" subgraph %s {%n", subgraph.name); |
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descriptors.stream() |
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.map(ModuleDescriptor::name) |
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.filter(subgraph.nodes::contains) |
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.forEach(mn -> printNode(out, mn, subgraph.color, subgraph.group)); |
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out.format(" }%n"); |
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}); |
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|
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descriptors.stream() |
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.filter(md -> graph.contains(md.name()) && |
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!graph.adjacentNodes(md.name()).isEmpty()) |
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.forEach(md -> printNode(out, md, graph.adjacentNodes(md.name()))); |
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|
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out.println("}"); |
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} |
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} |
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|
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public DotGraphBuilder subgraph(String name, String group, String color, |
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Set<String> nodes) { |
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subgraphs.add(new SubGraph(name, group, color, nodes)); |
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return this; |
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} |
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|
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public void printNode(PrintWriter out, String node, String color, String group) { |
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out.format(" \"%s\" [fontcolor=\"%s\", group=%s];%n", |
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node, color, group); |
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} |
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|
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public void printNode(PrintWriter out, ModuleDescriptor md, Set<String> edges) { |
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Set<String> requiresTransitive = md.requires().stream() |
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.filter(d -> d.modifiers().contains(TRANSITIVE)) |
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.map(d -> d.name()) |
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.collect(toSet()); |
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|
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String mn = md.name(); |
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edges.stream().forEach(dn -> { |
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String attr = dn.equals("java.base") ? REQUIRES_BASE |
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: (requiresTransitive.contains(dn) ? REEXPORTS : REQUIRES); |
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|
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int w = weightOf(mn, dn); |
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if (w > 1) { |
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if (!attr.isEmpty()) |
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attr += ", "; |
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|
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attr += "weight=" + w; |
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} |
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out.format(" \"%s\" -> \"%s\" [%s];%n", mn, dn, attr); |
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}); |
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} |
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|
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public int weightOf(String s, String t) { |
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int w = weights.getOrDefault(s + ":" + t, 1); |
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if (w != 1) |
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return w; |
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if (s.startsWith("java.") && t.startsWith("java.")) |
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return 10; |
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return 1; |
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} |
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|
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public static void sameRankNodes(Set<String> nodes) { |
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ranks.add(nodes); |
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} |
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|
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public static void weight(String s, String t, int w) { |
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weights.put(s + ":" + t, w); |
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} |
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|
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public static void setRankSep(double value) { |
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rankSep = value; |
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} |
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|
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public static void setFontSize(int size) { |
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fontsize = size; |
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354 |
} |
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355 |
|
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public static void setFontColor(String color) { |
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fontColor = color; |
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358 |
} |
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359 |
|
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public static void setArrowSize(int size) { |
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arrowSize = size; |
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362 |
} |
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363 |
|
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public static void setArrowWidth(int width) { |
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|
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arrowWidth = width; |
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366 |
} |
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} |
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368 |
} |