Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright 2002-2004 Sun Microsystems, Inc.  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.  Sun designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

  * CA 95054 USA or visit www.sun.com if you need additional information or

  * have any questions.

  */

 package com.sun.tools.javah;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.IOException;

 import java.util.ResourceBundle;

 import java.text.MessageFormat;

 import java.util.MissingResourceException;

 /**

  * Messages, verbose and error handling support.

  *

  * For errors, the failure modes are:

  *      error -- User did something wrong

  *      bug   -- Bug has occurred in javah

  *      fatal -- We can't even find resources, so bail fast, don't localize

  *

  */

 public class Util {

     /*

      * Help for verbosity.

      */

     public static boolean verbose = false;

     public static void log(String s) {

         System.out.println(s);

     }

     /*

      * Help for loading localized messages.

      */

     private static ResourceBundle m;

     private static void initMessages() {

         try {

             m=ResourceBundle.getBundle("com.sun.tools.javah.resources.l10n");

         } catch (MissingResourceException mre) {

             fatal("Error loading resources.  Please file a bug report.", mre);

         }

     }

     public static String getText(String key) {

         return getText(key, null, null);

     }

     private static String getText(String key, String a1, String a2){

         if (m == null)

             initMessages();

         try {

             return MessageFormat.format(m.getString(key),

                                         new Object[] { a1, a2 });

         } catch (MissingResourceException e) {

             fatal("Key " + key + " not found in resources.", e);

         }

         return null; /* dead code */

     }

     /*

      * Usage message.

      */

     public static void usage(int exitValue) {

         if (exitValue == 0) {

             System.out.println(getText("usage"));

         } else {

             System.err.println(getText("usage"));

         }

         System.exit(exitValue);

     }

     public static void version() {

         System.out.println(getText("javah.version",

                                    System.getProperty("java.version"), null));

         System.exit(0);

     }

     /*

      * Failure modes.

      */

     public static void bug(String key) {

         bug(key, null);

     }

     public static void bug(String key, Exception e) {

         if (e != null)

             e.printStackTrace();

         System.err.println(getText(key));

         System.err.println(getText("bug.report"));

         System.exit(11);

     }

     public static void error(String key) {

         error(key, null);

     }

     public static void error(String key, String a1) {

         error(key, a1, null);

     }

     public static void error(String key, String a1, String a2) {

         error(key, a1, a2, false);

     }

     public static void error(String key, String a1, String a2,

                              boolean showUsage) {

         System.err.println("Error: " + getText(key, a1, a2));

         if (showUsage)

             usage(15);

         System.exit(15);

     }

     private static void fatal(String msg) {

         fatal(msg, null);

     }

     private static void fatal(String msg, Exception e) {

         if (e != null) {

             e.printStackTrace();

         }

         System.err.println(msg);

         System.exit(10);

     }

     /*

      * Support for platform specific things in javah, such as pragma

      * directives, exported symbols etc.

      */

     static private ResourceBundle platform = null;

     /*

      * Set when platform has been initialized.

      */

     static private boolean platformInit = false;

     static String getPlatformString(String key) {

         if (!platformInit) {

             initPlatform();

             platformInit = true;

         }

         if (platform == null)

             return null;

         try {

             return platform.getString(key);

         } catch (MissingResourceException mre) {

             return null;

         }

     }

     private static void initPlatform() {

         String os = System.getProperty("os.name");

         if (os.startsWith("Windows")) {

             os = "win32";

         } else if (os.indexOf("Linux") >= 0) {

             os = "Linux";

         }

         String arch = System.getProperty("os.arch");

         String resname = "com.sun.tools.javah.resources." + os + "_" + arch;

         try {

             platform=ResourceBundle.getBundle(resname);

         } catch (MissingResourceException mre) {

             // fatal("Error loading resources.  Please file a bug report.", mre);

         }

     }

 }