| /* |
| * Copyright (c) 1996, 2014, 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 sun.tools.serialver; |
| |
| import java.io.*; |
| import java.io.ObjectStreamClass; |
| import java.util.Properties; |
| import java.text.MessageFormat; |
| import java.util.ResourceBundle; |
| import java.util.MissingResourceException; |
| import java.net.URLClassLoader; |
| import java.net.URL; |
| import java.net.MalformedURLException; |
| import java.util.StringTokenizer; |
| import sun.net.www.ParseUtil; |
| |
| public class SerialVer { |
| |
| /* |
| * A class loader that will load from the CLASSPATH environment |
| * variable set by the user. |
| */ |
| static URLClassLoader loader = null; |
| |
| /* |
| * Create a URL class loader that will load classes from the |
| * specified classpath. |
| */ |
| static void initializeLoader(String cp) |
| throws MalformedURLException, IOException { |
| URL[] urls; |
| StringTokenizer st = new StringTokenizer(cp, File.pathSeparator); |
| int count = st.countTokens(); |
| urls = new URL[count]; |
| for (int i = 0; i < count; i++) { |
| urls[i] = ParseUtil.fileToEncodedURL( |
| new File(new File(st.nextToken()).getCanonicalPath())); |
| } |
| loader = new URLClassLoader(urls); |
| } |
| |
| /* |
| * From the classname find the serialVersionUID string formatted |
| * for to be copied to a java class. |
| */ |
| static String serialSyntax(String classname) throws ClassNotFoundException { |
| String ret = null; |
| boolean classFound = false; |
| |
| // If using old style of qualifyling inner classes with '$'s. |
| if (classname.indexOf('$') != -1) { |
| ret = resolveClass(classname); |
| } else { |
| /* Try to resolve the fully qualified name and if that fails, start |
| * replacing the '.'s with '$'s starting from the last '.', until |
| * the class is resolved. |
| */ |
| try { |
| ret = resolveClass(classname); |
| classFound = true; |
| } catch (ClassNotFoundException e) { |
| /* Class not found so far */ |
| } |
| if (!classFound) { |
| StringBuilder workBuffer = new StringBuilder(classname); |
| String workName = workBuffer.toString(); |
| int i; |
| while ((i = workName.lastIndexOf('.')) != -1 && !classFound) { |
| workBuffer.setCharAt(i, '$'); |
| try { |
| workName = workBuffer.toString(); |
| ret = resolveClass(workName); |
| classFound = true; |
| } catch (ClassNotFoundException e) { |
| /* Continue searching */ |
| } |
| } |
| } |
| if (!classFound) { |
| throw new ClassNotFoundException(); |
| } |
| } |
| return ret; |
| } |
| |
| static String resolveClass(String classname) throws ClassNotFoundException { |
| Class<?> cl = Class.forName(classname, false, loader); |
| ObjectStreamClass desc = ObjectStreamClass.lookup(cl); |
| if (desc != null) { |
| return " private static final long serialVersionUID = " + |
| desc.getSerialVersionUID() + "L;"; |
| } else { |
| return null; |
| } |
| } |
| |
| public static void main(String[] args) { |
| String envcp = null; |
| int i = 0; |
| |
| if (args.length == 0) { |
| usage(); |
| System.exit(1); |
| } |
| |
| for (i = 0; i < args.length; i++) { |
| if (args[i].equals("-classpath")) { |
| if ((i+1 == args.length) || args[i+1].startsWith("-")) { |
| System.err.println(Res.getText("error.missing.classpath")); |
| usage(); |
| System.exit(1); |
| } |
| envcp = new String(args[i+1]); |
| i++; |
| } else if (args[i].startsWith("-")) { |
| System.err.println(Res.getText("invalid.flag", args[i])); |
| usage(); |
| System.exit(1); |
| } else { |
| break; // drop into processing class names |
| } |
| } |
| |
| |
| /* |
| * Get user's CLASSPATH environment variable, if the -classpath option |
| * is not defined, and make a loader that can read from that path. |
| */ |
| if (envcp == null) { |
| envcp = System.getProperty("env.class.path"); |
| /* |
| * If environment variable not set, add current directory to path. |
| */ |
| if (envcp == null) { |
| envcp = "."; |
| } |
| } |
| |
| try { |
| initializeLoader(envcp); |
| } catch (MalformedURLException mue) { |
| System.err.println(Res.getText("error.parsing.classpath", envcp)); |
| System.exit(2); |
| } catch (IOException ioe) { |
| System.err.println(Res.getText("error.parsing.classpath", envcp)); |
| System.exit(3); |
| } |
| |
| /* |
| * Check if there are any class names specified |
| */ |
| if (i == args.length) { |
| usage(); |
| System.exit(1); |
| } |
| |
| /* |
| * The rest of the parameters are classnames. |
| */ |
| boolean exitFlag = false; |
| for (i = i; i < args.length; i++ ) { |
| try { |
| String syntax = serialSyntax(args[i]); |
| if (syntax != null) |
| System.out.println(args[i] + ":" + syntax); |
| else { |
| System.err.println(Res.getText("NotSerializable", |
| args[i])); |
| exitFlag = true; |
| } |
| } catch (ClassNotFoundException cnf) { |
| System.err.println(Res.getText("ClassNotFound", args[i])); |
| exitFlag = true; |
| } |
| } |
| if (exitFlag) { |
| System.exit(1); |
| } |
| } |
| |
| |
| /** |
| * Usage |
| */ |
| public static void usage() { |
| System.err.println(Res.getText("usage")); |
| } |
| |
| } |
| |
| /** |
| * Utility for integrating with serialver and for localization. |
| * Handle Resources. Access to error and warning counts. |
| * Message formatting. |
| * |
| * @see java.util.ResourceBundle |
| * @see java.text.MessageFormat |
| */ |
| class Res { |
| |
| private static ResourceBundle messageRB; |
| |
| /** |
| * Initialize ResourceBundle |
| */ |
| static void initResource() { |
| try { |
| messageRB = |
| ResourceBundle.getBundle("sun.tools.serialver.resources.serialver"); |
| } catch (MissingResourceException e) { |
| throw new Error("Fatal: Resource for serialver is missing"); |
| } |
| } |
| |
| /** |
| * get and format message string from resource |
| * |
| * @param key selects message from resource |
| */ |
| static String getText(String key) { |
| return getText(key, (String)null); |
| } |
| |
| /** |
| * get and format message string from resource |
| * |
| * @param key selects message from resource |
| * @param a1 first argument |
| */ |
| static String getText(String key, String a1) { |
| return getText(key, a1, null); |
| } |
| |
| /** |
| * get and format message string from resource |
| * |
| * @param key selects message from resource |
| * @param a1 first argument |
| * @param a2 second argument |
| */ |
| static String getText(String key, String a1, String a2) { |
| return getText(key, a1, a2, null); |
| } |
| |
| /** |
| * get and format message string from resource |
| * |
| * @param key selects message from resource |
| * @param a1 first argument |
| * @param a2 second argument |
| * @param a3 third argument |
| */ |
| static String getText(String key, String a1, String a2, String a3) { |
| if (messageRB == null) { |
| initResource(); |
| } |
| try { |
| String message = messageRB.getString(key); |
| return MessageFormat.format(message, a1, a2, a3); |
| } catch (MissingResourceException e) { |
| throw new Error("Fatal: Resource for serialver is broken. There is no " + key + " key in resource."); |
| } |
| } |
| } |