| /* |
| * Copyright (c) 2009, 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. |
| * |
| * 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. |
| */ |
| |
| import java.io.*; |
| import java.util.*; |
| import java.util.regex.Pattern; |
| import javax.tools.*; |
| |
| import com.sun.tools.classfile.*; |
| import com.sun.tools.classfile.Dependencies.*; |
| import com.sun.tools.classfile.Dependency.Location; |
| import com.sun.tools.javac.file.JavacFileManager; |
| import com.sun.tools.javac.util.Context; |
| |
| /** |
| * Demo utility for using the classfile dependency analysis API framework. |
| * |
| * Usage: |
| * getdeps [options] classes |
| * where options include: |
| * -classpath path where to find classes to analyze |
| * -p package-name restrict analysis to classes in this package |
| * (may be given multiple times) |
| * -r regex restrict analysis to packages matching pattern |
| * (-p and -r are exclusive) |
| * -rev invert the dependencies in the output |
| * -t transitive closure of dependencies |
| */ |
| public class GetDeps { |
| public static void main(String... args) throws Exception { |
| new GetDeps().run(args); |
| } |
| |
| void run(String... args) throws IOException, ClassFileNotFoundException { |
| PrintWriter pw = new PrintWriter(System.out); |
| try { |
| run(pw, args); |
| } finally { |
| pw.flush(); |
| } |
| } |
| |
| void run(PrintWriter out, String... args) throws IOException, ClassFileNotFoundException { |
| decodeArgs(args); |
| |
| final StandardJavaFileManager fm = new JavacFileManager(new Context(), false, null); |
| if (classpath != null) |
| fm.setLocation(StandardLocation.CLASS_PATH, classpath); |
| |
| ClassFileReader reader = new ClassFileReader(fm); |
| |
| Dependencies d = new Dependencies(); |
| |
| if (regex != null) |
| d.setFilter(Dependencies.getRegexFilter(Pattern.compile(regex))); |
| |
| if (packageNames.size() > 0) |
| d.setFilter(Dependencies.getPackageFilter(packageNames, false)); |
| |
| SortedRecorder r = new SortedRecorder(reverse); |
| |
| d.findAllDependencies(reader, rootClassNames, transitiveClosure, r); |
| |
| SortedMap<Location,SortedSet<Dependency>> deps = r.getMap(); |
| for (Map.Entry<Location, SortedSet<Dependency>> e: deps.entrySet()) { |
| out.println(e.getKey()); |
| for (Dependency dep: e.getValue()) { |
| out.println(" " + dep.getTarget()); |
| } |
| } |
| } |
| |
| void decodeArgs(String... args) { |
| rootClassNames = new TreeSet<String>(); |
| packageNames = new TreeSet<String>(); |
| |
| for (int i = 0; i < args.length; i++) { |
| String arg = args[i]; |
| if (arg.equals("-classpath") && (i + 1 < args.length)) |
| classpath = getPathFiles(args[++i]); |
| else if (arg.equals("-p") && (i + 1 < args.length)) |
| packageNames.add(args[++i]); |
| else if (arg.equals("-r") && (i + 1 < args.length)) |
| regex = args[++i]; |
| else if (arg.equals("-rev")) |
| reverse = true; |
| else if (arg.equals("-t")) |
| transitiveClosure = true; |
| else if (arg.startsWith("-")) |
| throw new Error(arg); |
| else { |
| for ( ; i < args.length; i++) |
| rootClassNames.add(args[i]); |
| } |
| } |
| } |
| |
| List<File> getPathFiles(String path) { |
| List<File> files = new ArrayList<File>(); |
| for (String p: path.split(File.pathSeparator)) { |
| if (p.length() > 0) |
| files.add(new File(p)); |
| } |
| return files; |
| } |
| |
| boolean transitiveClosure; |
| List<File> classpath; |
| Set<String> rootClassNames; |
| Set<String> packageNames; |
| String regex; |
| boolean reverse; |
| |
| |
| static class ClassFileReader implements Dependencies.ClassFileReader { |
| private JavaFileManager fm; |
| |
| ClassFileReader(JavaFileManager fm) { |
| this.fm = fm; |
| } |
| |
| @Override |
| public ClassFile getClassFile(String className) throws ClassFileNotFoundException { |
| try { |
| JavaFileObject fo = fm.getJavaFileForInput( |
| StandardLocation.CLASS_PATH, className, JavaFileObject.Kind.CLASS); |
| if (fo == null) |
| fo = fm.getJavaFileForInput( |
| StandardLocation.PLATFORM_CLASS_PATH, className, JavaFileObject.Kind.CLASS); |
| if (fo == null) |
| throw new ClassFileNotFoundException(className); |
| InputStream in = fo.openInputStream(); |
| try { |
| return ClassFile.read(in); |
| } finally { |
| in.close(); |
| } |
| } catch (ConstantPoolException e) { |
| throw new ClassFileNotFoundException(className, e); |
| } catch (IOException e) { |
| throw new ClassFileNotFoundException(className, e); |
| } |
| } |
| }; |
| |
| static class SortedRecorder implements Recorder { |
| public SortedRecorder(boolean reverse) { |
| this.reverse = reverse; |
| } |
| |
| public void addDependency(Dependency d) { |
| Location o = (reverse ? d.getTarget() : d.getOrigin()); |
| SortedSet<Dependency> odeps = map.get(o); |
| if (odeps == null) { |
| Comparator<Dependency> c = (reverse ? originComparator : targetComparator); |
| map.put(o, odeps = new TreeSet<Dependency>(c)); |
| } |
| odeps.add(d); |
| } |
| |
| public SortedMap<Location, SortedSet<Dependency>> getMap() { |
| return map; |
| } |
| |
| private Comparator<Dependency> originComparator = new Comparator<Dependency>() { |
| public int compare(Dependency o1, Dependency o2) { |
| return o1.getOrigin().toString().compareTo(o2.getOrigin().toString()); |
| } |
| }; |
| |
| private Comparator<Dependency> targetComparator = new Comparator<Dependency>() { |
| public int compare(Dependency o1, Dependency o2) { |
| return o1.getTarget().toString().compareTo(o2.getTarget().toString()); |
| } |
| }; |
| |
| private Comparator<Location> locationComparator = new Comparator<Location>() { |
| public int compare(Location o1, Location o2) { |
| return o1.toString().compareTo(o2.toString()); |
| } |
| }; |
| |
| private final SortedMap<Location, SortedSet<Dependency>> map = |
| new TreeMap<Location, SortedSet<Dependency>>(locationComparator); |
| |
| boolean reverse; |
| } |
| |
| } |