| /* |
| * 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. |
| */ |
| package com.sun.classanalyzer; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.*; |
| |
| /** |
| * A simple tool to print out the static dependencies for a given set of JAR, |
| * class files, or combinations of. The tools supports an -ignore option to |
| * ignore references to classes listed in the file (including .classlists |
| * created by the ClassAnalyzer tool). |
| */ |
| |
| public class ShowDeps { |
| |
| static void usage() { |
| System.out.println("java ShowDeps [-ignore <classlist>] file..."); |
| System.out.println(" where <file> is a class or JAR file, or a directory"); |
| System.out.println(); |
| System.out.println("Example usages:"); |
| System.out.println(" java ShowDeps Foo.jar"); |
| System.out.println(" java ShowDeps -ignore base.classlist Foo.jar"); |
| System.out.println(" java ShowDeps -ignore base.classlist -ignore " + |
| "jaxp-parsers.classlist <dir>"); |
| System.exit(-1); |
| } |
| |
| public static void main(String[] args) throws IOException { |
| // process -ignore options |
| int argi = 0; |
| Set<String> ignore = new HashSet<String>(); |
| while (argi < args.length && args[argi].equals("-ignore")) { |
| argi++; |
| Scanner s = new Scanner(new File(args[argi++])); |
| try { |
| while (s.hasNextLine()) { |
| String line = s.nextLine(); |
| if (!line.endsWith(".class")) |
| continue; |
| int len = line.length(); |
| // convert to class names |
| String clazz = line.replace('\\', '.').replace('/', '.') |
| .substring(0, len-6); |
| ignore.add(clazz); |
| } |
| } finally { |
| s.close(); |
| } |
| } |
| |
| if (argi >= args.length) |
| usage(); |
| |
| // parse all classes |
| while (argi < args.length) |
| ClassPath.setClassPath(args[argi++]); |
| ClassPath.parseAllClassFiles(); |
| |
| // find the classes that don't exist |
| Set<Klass> unresolved = new TreeSet<Klass>(); |
| for (Klass k : Klass.getAllClasses()) { |
| if (k.getFileSize() == 0) |
| unresolved.add(k); |
| } |
| |
| // print references to classes that don't exist |
| for (Klass k: Klass.getAllClasses()) { |
| for (Klass other : k.getReferencedClasses()) { |
| if (unresolved.contains(other)) { |
| String name = other.toString(); |
| if (!ignore.contains(name)) { |
| System.out.format("%s -> %s\n", k, other); |
| } |
| } |
| } |
| } |
| } |
| } |