jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/jdeps/JdepsTask.java@aa91bc6e8480 (annotated)

src/share/classes/com/sun/tools/jdeps/JdepsTask.java@aa91bc6e8480 (annotated)

src/share/classes/com/sun/tools/jdeps/JdepsTask.java

Wed, 30 Oct 2013 08:35:52 -0700

author: mchung
date: Wed, 30 Oct 2013 08:35:52 -0700
changeset 2172: aa91bc6e8480
parent 2139: defadd528513
child 2214: 4a2ed1900428
permissions: -rw-r--r--

8027481: jdeps to handle classes with the same package name and correct profile for javax.crypto.*
Reviewed-by: alanb, dfuchs

 /*
  * Copyright (c) 2012, 2013, 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 com.sun.tools.classfile.AccessFlags;
 import com.sun.tools.classfile.ClassFile;
 import com.sun.tools.classfile.ConstantPoolException;
 import com.sun.tools.classfile.Dependencies;
 import com.sun.tools.classfile.Dependencies.ClassFileError;
 import com.sun.tools.classfile.Dependency;
 import com.sun.tools.jdeps.PlatformClassPath.JDKArchive;
 import java.io.*;
 import java.nio.file.DirectoryStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.text.MessageFormat;
 import java.util.*;
 import java.util.regex.Pattern;
 /**
  * Implementation for the jdeps tool for static class dependency analysis.
  */
 class JdepsTask {
     static class BadArgs extends Exception {
         static final long serialVersionUID = 8765093759964640721L;
         BadArgs(String key, Object... args) {
             super(JdepsTask.getMessage(key, args));
             this.key = key;
             this.args = args;
         }
         BadArgs showUsage(boolean b) {
             showUsage = b;
             return this;
         }
         final String key;
         final Object[] args;
         boolean showUsage;
     }
     static abstract class Option {
         Option(boolean hasArg, String... aliases) {
             this.hasArg = hasArg;
             this.aliases = aliases;
         }
         boolean isHidden() {
             return false;
         }
         boolean matches(String opt) {
             for (String a : aliases) {
                 if (a.equals(opt))
                     return true;
                 if (hasArg && opt.startsWith(a + "="))
                     return true;
             }
             return false;
         }
         boolean ignoreRest() {
             return false;
         }
         abstract void process(JdepsTask task, String opt, String arg) throws BadArgs;
         final boolean hasArg;
         final String[] aliases;
     }
     static abstract class HiddenOption extends Option {
         HiddenOption(boolean hasArg, String... aliases) {
             super(hasArg, aliases);
         }
         boolean isHidden() {
             return true;
         }
     }
     static Option[] recognizedOptions = {
         new Option(false, "-h", "-?", "-help") {
             void process(JdepsTask task, String opt, String arg) {
                 task.options.help = true;
             }
         },
         new Option(true, "-dotoutput") {
             void process(JdepsTask task, String opt, String arg) throws BadArgs {
                 Path p = Paths.get(arg);
                 if (Files.exists(p) && (!Files.isDirectory(p) || !Files.isWritable(p))) {
                     throw new BadArgs("err.dot.output.path", arg);
                 }
                 task.options.dotOutputDir = arg;
             }
         },
         new Option(false, "-s", "-summary") {
             void process(JdepsTask task, String opt, String arg) {
                 task.options.showSummary = true;
                 task.options.verbose = Analyzer.Type.SUMMARY;
             }
         },
         new Option(false, "-v", "-verbose",
                           "-verbose:package",
                           "-verbose:class")
         {
             void process(JdepsTask task, String opt, String arg) throws BadArgs {
                 switch (opt) {
                     case "-v":
                     case "-verbose":
                         task.options.verbose = Analyzer.Type.VERBOSE;
                         break;
                     case "-verbose:package":
                             task.options.verbose = Analyzer.Type.PACKAGE;
                             break;
                     case "-verbose:class":
                             task.options.verbose = Analyzer.Type.CLASS;
                             break;
                     default:
                         throw new BadArgs("err.invalid.arg.for.option", opt);
                 }
             }
         },
         new Option(true, "-cp", "-classpath") {
             void process(JdepsTask task, String opt, String arg) {
                 task.options.classpath = arg;
             }
         },
         new Option(true, "-p", "-package") {
             void process(JdepsTask task, String opt, String arg) {
                 task.options.packageNames.add(arg);
             }
         },
         new Option(true, "-e", "-regex") {
             void process(JdepsTask task, String opt, String arg) {
                 task.options.regex = arg;
             }
         },
         new Option(true, "-include") {
             void process(JdepsTask task, String opt, String arg) throws BadArgs {
                 task.options.includePattern = Pattern.compile(arg);
             }
         },
         new Option(false, "-P", "-profile") {
             void process(JdepsTask task, String opt, String arg) throws BadArgs {
                 task.options.showProfile = true;
                 if (Profile.getProfileCount() == 0) {
                     throw new BadArgs("err.option.unsupported", opt, getMessage("err.profiles.msg"));
                 }
             }
         },
         new Option(false, "-apionly") {
             void process(JdepsTask task, String opt, String arg) {
                 task.options.apiOnly = true;
             }
         },
         new Option(false, "-R", "-recursive") {
             void process(JdepsTask task, String opt, String arg) {
                 task.options.depth = 0;
             }
         },
         new Option(false, "-version") {
             void process(JdepsTask task, String opt, String arg) {
                 task.options.version = true;
             }
         },
         new HiddenOption(false, "-fullversion") {
             void process(JdepsTask task, String opt, String arg) {
                 task.options.fullVersion = true;
             }
         },
         new HiddenOption(false, "-showlabel") {
             void process(JdepsTask task, String opt, String arg) {
                 task.options.showLabel = true;
             }
         },
         new HiddenOption(true, "-depth") {
             void process(JdepsTask task, String opt, String arg) throws BadArgs {
                 try {
                     task.options.depth = Integer.parseInt(arg);
                 } catch (NumberFormatException e) {
                     throw new BadArgs("err.invalid.arg.for.option", opt);
                 }
             }
         },
     };
     private static final String PROGNAME = "jdeps";
     private final Options options = new Options();
     private final List<String> classes = new ArrayList<String>();
     private PrintWriter log;
     void setLog(PrintWriter out) {
         log = out;
     }
     /**
      * Result codes.
      */
     static final int EXIT_OK = 0, // Completed with no errors.
                      EXIT_ERROR = 1, // Completed but reported errors.
                      EXIT_CMDERR = 2, // Bad command-line arguments
                      EXIT_SYSERR = 3, // System error or resource exhaustion.
                      EXIT_ABNORMAL = 4;// terminated abnormally
     int run(String[] args) {
         if (log == null) {
             log = new PrintWriter(System.out);
         }
         try {
             handleOptions(args);
             if (options.help) {
                 showHelp();
             }
             if (options.version || options.fullVersion) {
                 showVersion(options.fullVersion);
             }
             if (classes.isEmpty() && options.includePattern == null) {
                 if (options.help || options.version || options.fullVersion) {
                     return EXIT_OK;
                 } else {
                     showHelp();
                     return EXIT_CMDERR;
                 }
             }
             if (options.regex != null && options.packageNames.size() > 0) {
                 showHelp();
                 return EXIT_CMDERR;
             }
             if (options.showSummary && options.verbose != Analyzer.Type.SUMMARY) {
                 showHelp();
                 return EXIT_CMDERR;
             }
             boolean ok = run();
             return ok ? EXIT_OK : EXIT_ERROR;
         } catch (BadArgs e) {
             reportError(e.key, e.args);
             if (e.showUsage) {
                 log.println(getMessage("main.usage.summary", PROGNAME));
             }
             return EXIT_CMDERR;
         } catch (IOException e) {
             return EXIT_ABNORMAL;
         } finally {
             log.flush();
         }
     }
     private final List<Archive> sourceLocations = new ArrayList<>();
     private boolean run() throws IOException {
         findDependencies();
         Analyzer analyzer = new Analyzer(options.verbose);
         analyzer.run(sourceLocations);
         if (options.dotOutputDir != null) {
             Path dir = Paths.get(options.dotOutputDir);
             Files.createDirectories(dir);
             generateDotFiles(dir, analyzer);
         } else {
             printRawOutput(log, analyzer);
         }
         return true;
     }
     private void generateDotFiles(Path dir, Analyzer analyzer) throws IOException {
         Path summary = dir.resolve("summary.dot");
         boolean verbose = options.verbose == Analyzer.Type.VERBOSE;
         DotGraph<?> graph = verbose ? new DotSummaryForPackage()
                                     : new DotSummaryForArchive();
         for (Archive archive : sourceLocations) {
             analyzer.visitArchiveDependences(archive, graph);
             if (verbose || options.showLabel) {
                 // traverse detailed dependences to generate package-level
                 // summary or build labels for edges
                 analyzer.visitDependences(archive, graph);
             }
         }
         try (PrintWriter sw = new PrintWriter(Files.newOutputStream(summary))) {
             graph.writeTo(sw);
         }
         // output individual .dot file for each archive
         if (options.verbose != Analyzer.Type.SUMMARY) {
             for (Archive archive : sourceLocations) {
                 if (analyzer.hasDependences(archive)) {
                     Path dotfile = dir.resolve(archive.getFileName() + ".dot");
                     try (PrintWriter pw = new PrintWriter(Files.newOutputStream(dotfile));
                          DotFileFormatter formatter = new DotFileFormatter(pw, archive)) {
                         analyzer.visitDependences(archive, formatter);
                     }
                 }
             }
         }
     }
     private void printRawOutput(PrintWriter writer, Analyzer analyzer) {
         for (Archive archive : sourceLocations) {
             RawOutputFormatter formatter = new RawOutputFormatter(writer);
             analyzer.visitArchiveDependences(archive, formatter);
             if (options.verbose != Analyzer.Type.SUMMARY) {
                 analyzer.visitDependences(archive, formatter);
             }
         }
     }
     private boolean isValidClassName(String name) {
         if (!Character.isJavaIdentifierStart(name.charAt(0))) {
             return false;
         }
         for (int i=1; i < name.length(); i++) {
             char c = name.charAt(i);
             if (c != '.'  && !Character.isJavaIdentifierPart(c)) {
                 return false;
             }
         }
         return true;
     }
     private Dependency.Filter getDependencyFilter() {
          if (options.regex != null) {
             return Dependencies.getRegexFilter(Pattern.compile(options.regex));
         } else if (options.packageNames.size() > 0) {
             return Dependencies.getPackageFilter(options.packageNames, false);
         } else {
             return new Dependency.Filter() {
                 @Override
                 public boolean accepts(Dependency dependency) {
                     return !dependency.getOrigin().equals(dependency.getTarget());
                 }
             };
         }
     }
     private boolean matches(String classname, AccessFlags flags) {
         if (options.apiOnly && !flags.is(AccessFlags.ACC_PUBLIC)) {
             return false;
         } else if (options.includePattern != null) {
             return options.includePattern.matcher(classname.replace('/', '.')).matches();
         } else {
             return true;
         }
     }
     private void findDependencies() throws IOException {
         Dependency.Finder finder =
             options.apiOnly ? Dependencies.getAPIFinder(AccessFlags.ACC_PROTECTED)
                             : Dependencies.getClassDependencyFinder();
         Dependency.Filter filter = getDependencyFilter();
         List<Archive> archives = new ArrayList<>();
         Deque<String> roots = new LinkedList<>();
         for (String s : classes) {
             Path p = Paths.get(s);
             if (Files.exists(p)) {
                 archives.add(new Archive(p, ClassFileReader.newInstance(p)));
             } else {
                 if (isValidClassName(s)) {
                     roots.add(s);
                 } else {
                     warning("warn.invalid.arg", s);
                 }
             }
         }
         sourceLocations.addAll(archives);
         List<Archive> classpaths = new ArrayList<>(); // for class file lookup
         classpaths.addAll(getClassPathArchives(options.classpath));
         if (options.includePattern != null) {
             archives.addAll(classpaths);
         }
         classpaths.addAll(PlatformClassPath.getArchives());
         // add all classpath archives to the source locations for reporting
         sourceLocations.addAll(classpaths);
         // Work queue of names of classfiles to be searched.
         // Entries will be unique, and for classes that do not yet have
         // dependencies in the results map.
         Deque<String> deque = new LinkedList<>();
         Set<String> doneClasses = new HashSet<>();
         // get the immediate dependencies of the input files
         for (Archive a : archives) {
             for (ClassFile cf : a.reader().getClassFiles()) {
                 String classFileName;
                 try {
                     classFileName = cf.getName();
                 } catch (ConstantPoolException e) {
                     throw new ClassFileError(e);
                 }
                 if (matches(classFileName, cf.access_flags)) {
                     if (!doneClasses.contains(classFileName)) {
                         doneClasses.add(classFileName);
                     }
                     for (Dependency d : finder.findDependencies(cf)) {
                         if (filter.accepts(d)) {
                             String cn = d.getTarget().getName();
                             if (!doneClasses.contains(cn) && !deque.contains(cn)) {
                                 deque.add(cn);
                             }
                             a.addClass(d.getOrigin(), d.getTarget());
                         }
                     }
                 }
             }
         }
         // add Archive for looking up classes from the classpath
         // for transitive dependency analysis
         Deque<String> unresolved = roots;
         int depth = options.depth > 0 ? options.depth : Integer.MAX_VALUE;
         do {
             String name;
             while ((name = unresolved.poll()) != null) {
                 if (doneClasses.contains(name)) {
                     continue;
                 }
                 ClassFile cf = null;
                 for (Archive a : classpaths) {
                     cf = a.reader().getClassFile(name);
                     if (cf != null) {
                         String classFileName;
                         try {
                             classFileName = cf.getName();
                         } catch (ConstantPoolException e) {
                             throw new ClassFileError(e);
                         }
                         if (!doneClasses.contains(classFileName)) {
                             // if name is a fully-qualified class name specified
                             // from command-line, this class might already be parsed
                             doneClasses.add(classFileName);
                             for (Dependency d : finder.findDependencies(cf)) {
                                 if (depth == 0) {
                                     // ignore the dependency
                                     a.addClass(d.getOrigin());
                                     break;
                                 } else if (filter.accepts(d)) {
                                     a.addClass(d.getOrigin(), d.getTarget());
                                     String cn = d.getTarget().getName();
                                     if (!doneClasses.contains(cn) && !deque.contains(cn)) {
                                         deque.add(cn);
                                     }
                                 }
                             }
                         }
                         break;
                     }
                 }
                 if (cf == null) {
                     doneClasses.add(name);
                 }
             }
             unresolved = deque;
             deque = new LinkedList<>();
         } while (!unresolved.isEmpty() && depth-- > 0);
     }
     public void handleOptions(String[] args) throws BadArgs {
         // process options
         for (int i=0; i < args.length; i++) {
             if (args[i].charAt(0) == '-') {
                 String name = args[i];
                 Option option = getOption(name);
                 String param = null;
                 if (option.hasArg) {
                     if (name.startsWith("-") && name.indexOf('=') > 0) {
                         param = name.substring(name.indexOf('=') + 1, name.length());
                     } else if (i + 1 < args.length) {
                         param = args[++i];
                     }
                     if (param == null || param.isEmpty() || param.charAt(0) == '-') {
                         throw new BadArgs("err.missing.arg", name).showUsage(true);
                     }
                 }
                 option.process(this, name, param);
                 if (option.ignoreRest()) {
                     i = args.length;
                 }
             } else {
                 // process rest of the input arguments
                 for (; i < args.length; i++) {
                     String name = args[i];
                     if (name.charAt(0) == '-') {
                         throw new BadArgs("err.option.after.class", name).showUsage(true);
                     }
                     classes.add(name);
                 }
             }
         }
     }
     private Option getOption(String name) throws BadArgs {
         for (Option o : recognizedOptions) {
             if (o.matches(name)) {
                 return o;
             }
         }
         throw new BadArgs("err.unknown.option", name).showUsage(true);
     }
     private void reportError(String key, Object... args) {
         log.println(getMessage("error.prefix") + " " + getMessage(key, args));
     }
     private void warning(String key, Object... args) {
         log.println(getMessage("warn.prefix") + " " + getMessage(key, args));
     }
     private void showHelp() {
         log.println(getMessage("main.usage", PROGNAME));
         for (Option o : recognizedOptions) {
             String name = o.aliases[0].substring(1); // there must always be at least one name
             name = name.charAt(0) == '-' ? name.substring(1) : name;
             if (o.isHidden() || name.equals("h")) {
                 continue;
             }
             log.println(getMessage("main.opt." + name));
         }
     }
     private void showVersion(boolean full) {
         log.println(version(full ? "full" : "release"));
     }
     private String version(String key) {
         // key=version:  mm.nn.oo[-milestone]
         // key=full:     mm.mm.oo[-milestone]-build
         if (ResourceBundleHelper.versionRB == null) {
             return System.getProperty("java.version");
         }
         try {
             return ResourceBundleHelper.versionRB.getString(key);
         } catch (MissingResourceException e) {
             return getMessage("version.unknown", System.getProperty("java.version"));
         }
     }
     static String getMessage(String key, Object... args) {
         try {
             return MessageFormat.format(ResourceBundleHelper.bundle.getString(key), args);
         } catch (MissingResourceException e) {
             throw new InternalError("Missing message: " + key);
         }
     }
     private static class Options {
         boolean help;
         boolean version;
         boolean fullVersion;
         boolean showProfile;
         boolean showSummary;
         boolean wildcard;
         boolean apiOnly;
         boolean showLabel;
         String dotOutputDir;
         String classpath = "";
         int depth = 1;
         Analyzer.Type verbose = Analyzer.Type.PACKAGE;
         Set<String> packageNames = new HashSet<>();
         String regex;             // apply to the dependences
         Pattern includePattern;   // apply to classes
     }
     private static class ResourceBundleHelper {
         static final ResourceBundle versionRB;
         static final ResourceBundle bundle;
         static {
             Locale locale = Locale.getDefault();
             try {
                 bundle = ResourceBundle.getBundle("com.sun.tools.jdeps.resources.jdeps", locale);
             } catch (MissingResourceException e) {
                 throw new InternalError("Cannot find jdeps resource bundle for locale " + locale);
             }
             try {
                 versionRB = ResourceBundle.getBundle("com.sun.tools.jdeps.resources.version");
             } catch (MissingResourceException e) {
                 throw new InternalError("version.resource.missing");
             }
         }
     }
     private List<Archive> getArchives(List<String> filenames) throws IOException {
         List<Archive> result = new ArrayList<Archive>();
         for (String s : filenames) {
             Path p = Paths.get(s);
             if (Files.exists(p)) {
                 result.add(new Archive(p, ClassFileReader.newInstance(p)));
             } else {
                 warning("warn.file.not.exist", s);
             }
         }
         return result;
     }
     private List<Archive> getClassPathArchives(String paths) throws IOException {
         List<Archive> result = new ArrayList<>();
         if (paths.isEmpty()) {
             return result;
         }
         for (String p : paths.split(File.pathSeparator)) {
             if (p.length() > 0) {
                 List<Path> files = new ArrayList<>();
                 // wildcard to parse all JAR files e.g. -classpath dir/*
                 int i = p.lastIndexOf(".*");
                 if (i > 0) {
                     Path dir = Paths.get(p.substring(0, i));
                     try (DirectoryStream<Path> stream = Files.newDirectoryStream(dir, "*.jar")) {
                         for (Path entry : stream) {
                             files.add(entry);
                         }
                     }
                 } else {
                     files.add(Paths.get(p));
                 }
                 for (Path f : files) {
                     if (Files.exists(f)) {
                         result.add(new Archive(f, ClassFileReader.newInstance(f)));
                     }
                 }
             }
         }
         return result;
     }
     /**
      * If the given archive is JDK archive and non-null Profile,
      * this method returns the profile name only if -profile option is specified;
      * a null profile indicates it accesses a private JDK API and this method
      * will return "JDK internal API".
      *
      * For non-JDK archives, this method returns the file name of the archive.
      */
     private String getProfileArchiveInfo(Archive source, Profile profile) {
         if (options.showProfile && profile != null)
             return profile.toString();
         if (source instanceof JDKArchive) {
             return profile == null ? "JDK internal API (" + source.getFileName() + ")" : "";
         }
         return source.getFileName();
     }
     /**
      * Returns the profile name or "JDK internal API" for JDK archive;
      * otherwise empty string.
      */
     private String profileName(Archive archive, Profile profile) {
         if (archive instanceof JDKArchive) {
             return Objects.toString(profile, "JDK internal API");
         } else {
             return "";
         }
     }
     class RawOutputFormatter implements Analyzer.Visitor {
         private final PrintWriter writer;
         RawOutputFormatter(PrintWriter writer) {
             this.writer = writer;
         }
         private String pkg = "";
         @Override
         public void visitDependence(String origin, Archive source,
                                     String target, Archive archive, Profile profile) {
             if (!origin.equals(pkg)) {
                 pkg = origin;
                 writer.format("   %s (%s)%n", origin, source.getFileName());
             }
             writer.format("      -> %-50s %s%n", target, getProfileArchiveInfo(archive, profile));
         }
         @Override
         public void visitArchiveDependence(Archive origin, Archive target, Profile profile) {
             writer.format("%s -> %s", origin.getPathName(), target.getPathName());
             if (options.showProfile && profile != null) {
                 writer.format(" (%s)%n", profile);
             } else {
                 writer.format("%n");
             }
         }
     }
     class DotFileFormatter extends DotGraph<String> implements AutoCloseable {
         private final PrintWriter writer;
         private final String name;
         DotFileFormatter(PrintWriter writer, Archive archive) {
             this.writer = writer;
             this.name = archive.getFileName();
             writer.format("digraph \"%s\" {%n", name);
             writer.format("    // Path: %s%n", archive.getPathName());
         }
         @Override
         public void close() {
             writer.println("}");
         }
         @Override
         public void visitDependence(String origin, Archive source,
                                     String target, Archive archive, Profile profile) {
             // if -P option is specified, package name -> profile will
             // be shown and filter out multiple same edges.
             String name = getProfileArchiveInfo(archive, profile);
             writeEdge(writer, new Edge(origin, target, getProfileArchiveInfo(archive, profile)));
         }
         @Override
         public void visitArchiveDependence(Archive origin, Archive target, Profile profile) {
             throw new UnsupportedOperationException();
         }
     }
     class DotSummaryForArchive extends DotGraph<Archive> {
         @Override
         public void visitDependence(String origin, Archive source,
                                     String target, Archive archive, Profile profile) {
             Edge e = findEdge(source, archive);
             assert e != null;
             // add the dependency to the label if enabled and not compact1
             if (profile == Profile.COMPACT1) {
                 return;
             }
             e.addLabel(origin, target, profileName(archive, profile));
         }
         @Override
         public void visitArchiveDependence(Archive origin, Archive target, Profile profile) {
             // add an edge with the archive's name with no tag
             // so that there is only one node for each JDK archive
             // while there may be edges to different profiles
             Edge e = addEdge(origin, target, "");
             if (target instanceof JDKArchive) {
                 // add a label to print the profile
                 if (profile == null) {
                     e.addLabel("JDK internal API");
                 } else if (options.showProfile && !options.showLabel) {
                     e.addLabel(profile.toString());
                 }
             }
         }
     }
     // DotSummaryForPackage generates the summary.dot file for verbose mode
     // (-v or -verbose option) that includes all class dependencies.
     // The summary.dot file shows package-level dependencies.
     class DotSummaryForPackage extends DotGraph<String> {
         private String packageOf(String cn) {
             int i = cn.lastIndexOf('.');
             return i > 0 ? cn.substring(0, i) : "<unnamed>";
         }
         @Override
         public void visitDependence(String origin, Archive source,
                                     String target, Archive archive, Profile profile) {
             // add a package dependency edge
             String from = packageOf(origin);
             String to = packageOf(target);
             Edge e = addEdge(from, to, getProfileArchiveInfo(archive, profile));
             // add the dependency to the label if enabled and not compact1
             if (!options.showLabel || profile == Profile.COMPACT1) {
                 return;
             }
             // trim the package name of origin to shorten the label
             int i = origin.lastIndexOf('.');
             String n1 = i < 0 ? origin : origin.substring(i+1);
             e.addLabel(n1, target, profileName(archive, profile));
         }
         @Override
         public void visitArchiveDependence(Archive origin, Archive target, Profile profile) {
             // nop
         }
     }
     abstract class DotGraph<T> implements Analyzer.Visitor  {
         private final Set<Edge> edges = new LinkedHashSet<>();
         private Edge curEdge;
         public void writeTo(PrintWriter writer) {
             writer.format("digraph \"summary\" {%n");
             for (Edge e: edges) {
                 writeEdge(writer, e);
             }
             writer.println("}");
         }
         void writeEdge(PrintWriter writer, Edge e) {
             writer.format("   %-50s -> \"%s\"%s;%n",
                           String.format("\"%s\"", e.from.toString()),
                           e.tag.isEmpty() ? e.to
                                           : String.format("%s (%s)", e.to, e.tag),
                           getLabel(e));
         }
         Edge addEdge(T origin, T target, String tag) {
             Edge e = new Edge(origin, target, tag);
             if (e.equals(curEdge)) {
                 return curEdge;
             }
             if (edges.contains(e)) {
                 for (Edge e1 : edges) {
                    if (e.equals(e1)) {
                        curEdge = e1;
                    }
                 }
             } else {
                 edges.add(e);
                 curEdge = e;
             }
             return curEdge;
         }
         Edge findEdge(T origin, T target) {
             for (Edge e : edges) {
                 if (e.from.equals(origin) && e.to.equals(target)) {
                     return e;
                 }
             }
             return null;
         }
         String getLabel(Edge e) {
             String label = e.label.toString();
             return label.isEmpty() ? "" : String.format("[label=\"%s\",fontsize=9]", label);
         }
         class Edge {
             final T from;
             final T to;
             final String tag;  // optional tag
             final StringBuilder label = new StringBuilder();
             Edge(T from, T to, String tag) {
                 this.from = from;
                 this.to = to;
                 this.tag = tag;
             }
             void addLabel(String s) {
                 label.append(s).append("\\n");
             }
             void addLabel(String origin, String target, String profile) {
                 label.append(origin).append(" -> ").append(target);
                 if (!profile.isEmpty()) {
                     label.append(" (" + profile + ")");
                 }
                 label.append("\\n");
             }
             @Override @SuppressWarnings("unchecked")
             public boolean equals(Object o) {
                 if (o instanceof DotGraph<?>.Edge) {
                     DotGraph<?>.Edge e = (DotGraph<?>.Edge)o;
                     return this.from.equals(e.from) &&
                            this.to.equals(e.to) &&
                            this.tag.equals(e.tag);
                 }
                 return false;
             }
             @Override
             public int hashCode() {
                 int hash = 7;
                 hash = 67 * hash + Objects.hashCode(this.from) +
                        Objects.hashCode(this.to) + Objects.hashCode(this.tag);
                 return hash;
             }
         }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/jdeps/JdepsTask.java@aa91bc6e8480 (annotated)

src/share/classes/com/sun/tools/jdeps/JdepsTask.java