J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1995-2000 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.misc; |
| 27 | |
| 28 | /** |
| 29 | * MessageUtils: miscellaneous utilities for handling error and status |
| 30 | * properties and messages. |
| 31 | * |
| 32 | * @author Herb Jellinek |
| 33 | */ |
| 34 | |
| 35 | public class MessageUtils { |
| 36 | // can instantiate it for to allow less verbose use - via instance |
| 37 | // instead of classname |
| 38 | |
| 39 | public MessageUtils() { } |
| 40 | |
| 41 | public static String subst(String patt, String arg) { |
| 42 | String args[] = { arg }; |
| 43 | return subst(patt, args); |
| 44 | } |
| 45 | |
| 46 | public static String subst(String patt, String arg1, String arg2) { |
| 47 | String args[] = { arg1, arg2 }; |
| 48 | return subst(patt, args); |
| 49 | } |
| 50 | |
| 51 | public static String subst(String patt, String arg1, String arg2, |
| 52 | String arg3) { |
| 53 | String args[] = { arg1, arg2, arg3 }; |
| 54 | return subst(patt, args); |
| 55 | } |
| 56 | |
| 57 | public static String subst(String patt, String args[]) { |
| 58 | StringBuffer result = new StringBuffer(); |
| 59 | int len = patt.length(); |
| 60 | for (int i = 0; i >= 0 && i < len; i++) { |
| 61 | char ch = patt.charAt(i); |
| 62 | if (ch == '%') { |
| 63 | if (i != len) { |
| 64 | int index = Character.digit(patt.charAt(i + 1), 10); |
| 65 | if (index == -1) { |
| 66 | result.append(patt.charAt(i + 1)); |
| 67 | i++; |
| 68 | } else if (index < args.length) { |
| 69 | result.append(args[index]); |
| 70 | i++; |
| 71 | } |
| 72 | } |
| 73 | } else { |
| 74 | result.append(ch); |
| 75 | } |
| 76 | } |
| 77 | return result.toString(); |
| 78 | } |
| 79 | |
| 80 | public static String substProp(String propName, String arg) { |
| 81 | return subst(System.getProperty(propName), arg); |
| 82 | } |
| 83 | |
| 84 | public static String substProp(String propName, String arg1, String arg2) { |
| 85 | return subst(System.getProperty(propName), arg1, arg2); |
| 86 | } |
| 87 | |
| 88 | public static String substProp(String propName, String arg1, String arg2, |
| 89 | String arg3) { |
| 90 | return subst(System.getProperty(propName), arg1, arg2, arg3); |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Print a message directly to stderr, bypassing all the |
| 95 | * character conversion methods. |
| 96 | * @param msg message to print |
| 97 | */ |
| 98 | public static native void toStderr(String msg); |
| 99 | |
| 100 | /** |
| 101 | * Print a message directly to stdout, bypassing all the |
| 102 | * character conversion methods. |
| 103 | * @param msg message to print |
| 104 | */ |
| 105 | public static native void toStdout(String msg); |
| 106 | |
| 107 | |
| 108 | // Short forms of the above |
| 109 | |
| 110 | public static void err(String s) { |
| 111 | toStderr(s + "\n"); |
| 112 | } |
| 113 | |
| 114 | public static void out(String s) { |
| 115 | toStdout(s + "\n"); |
| 116 | } |
| 117 | |
| 118 | // Print a stack trace to stderr |
| 119 | // |
| 120 | public static void where() { |
| 121 | Throwable t = new Throwable(); |
| 122 | StackTraceElement[] es = t.getStackTrace(); |
| 123 | for (int i = 1; i < es.length; i++) |
| 124 | toStderr("\t" + es[i].toString() + "\n"); |
| 125 | } |
| 126 | |
| 127 | } |