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| 1 | +/* | |
| 2 | + * Copyright (c) 1995, 2000, Oracle and/or its affiliates. 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. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * 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 | +} | |