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| 1 | /* | ||
| 2 | * Copyright (c) 2001, 2002, 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 | package com.sun.tools.example.debug.tty; | ||
| 26 | |||
| 27 | import java.util.*; | ||
| 28 | import java.text.MessageFormat; | ||
| 29 | /** | ||
| 30 | * Internationalization (i18n) convenience methods for jdb. | ||
| 31 | * | ||
| 32 | * All program output should flow through these methods, and this is | ||
| 33 | * the only class that should be printing directly or otherwise | ||
| 34 | * accessing System.[out,err]. | ||
| 35 | * | ||
| 36 | * @bug 4348376 | ||
| 37 | * @author Tim Bell | ||
| 38 | */ | ||
| 39 | public class MessageOutput { | ||
| 40 | /** | ||
| 41 | * The resource bundle containing localizable message content. | ||
| 42 | * This is loaded by TTY.main() at start-up | ||
| 43 | */ | ||
| 44 | static ResourceBundle textResources; | ||
| 45 | |||
| 46 | /** Our message formatter. Allocated once, used many times */ | ||
| 47 | private static MessageFormat messageFormat; | ||
| 48 | |||
| 49 | /** | ||
| 50 | * Fatal shutdown notification. This is sent to System.err | ||
| 51 | * instead of System.out | ||
| 52 | */ | ||
| 53 | static void fatalError(String messageKey) { | ||
| 54 | System.err.println(); | ||
| 55 | System.err.println(format("Fatal error")); | ||
| 56 | System.err.println(format(messageKey)); | ||
| 57 | Env.shutdown(); | ||
| 58 | } | ||
| 59 | |||
| 60 | /** | ||
| 61 | * "Format" a string by doing a simple key lookup. | ||
| 62 | */ | ||
| 63 | static String format(String key) { | ||
| 64 | return (textResources.getString(key)); | ||
| 65 | } | ||
| 66 | |||
| 67 | /** | ||
| 68 | * Fetch and format a message with one string argument. | ||
| 69 | * This is the most common usage. | ||
| 70 | */ | ||
| 71 | static String format(String key, String argument) { | ||
| 72 | return format(key, new Object [] {argument}); | ||
| 73 | } | ||
| 74 | |||
| 75 | /** | ||
| 76 | * Fetch a string by key lookup and format in the arguments. | ||
| 77 | */ | ||
| 78 | static synchronized String format(String key, Object [] arguments) { | ||
| 79 | if (messageFormat == null) { | ||
| 80 | messageFormat = new MessageFormat (textResources.getString(key)); | ||
| 81 | } else { | ||
| 82 | messageFormat.applyPattern (textResources.getString(key)); | ||
| 83 | } | ||
| 84 | return (messageFormat.format (arguments)); | ||
| 85 | } | ||
| 86 | |||
| 87 | /** | ||
| 88 | * Print directly to System.out. | ||
| 89 | * Every rule has a few exceptions. | ||
| 90 | * The exceptions to "must use the MessageOutput formatters" are: | ||
| 91 | * VMConnection.dumpStream() | ||
| 92 | * TTY.monitorCommand() | ||
| 93 | * TTY.TTY() (for the '!!' command only) | ||
| 94 | * Commands.java (multiple locations) | ||
| 95 | * These are the only sites that should be calling this | ||
| 96 | * method. | ||
| 97 | */ | ||
| 98 | static void printDirectln(String line) { | ||
| 99 | System.out.println(line); | ||
| 100 | } | ||
| 101 | static void printDirect(String line) { | ||
| 102 | System.out.print(line); | ||
| 103 | } | ||
| 104 | static void printDirect(char c) { | ||
| 105 | System.out.print(c); | ||
| 106 | } | ||
| 107 | |||
| 108 | /** | ||
| 109 | * Print a newline. | ||
| 110 | * Use this instead of '\n' | ||
| 111 | */ | ||
| 112 | static void println() { | ||
| 113 | System.out.println(); | ||
| 114 | } | ||
| 115 | |||
| 116 | /** | ||
| 117 | * Format and print a simple string. | ||
| 118 | */ | ||
| 119 | static void print(String key) { | ||
| 120 | System.out.print(format(key)); | ||
| 121 | } | ||
| 122 | /** | ||
| 123 | * Format and print a simple string. | ||
| 124 | */ | ||
| 125 | static void println(String key) { | ||
| 126 | System.out.println(format(key)); | ||
| 127 | } | ||
| 128 | |||
| 129 | |||
| 130 | /** | ||
| 131 | * Fetch, format and print a message with one string argument. | ||
| 132 | * This is the most common usage. | ||
| 133 | */ | ||
| 134 | static void print(String key, String argument) { | ||
| 135 | System.out.print(format(key, argument)); | ||
| 136 | } | ||
| 137 | static void println(String key, String argument) { | ||
| 138 | System.out.println(format(key, argument)); | ||
| 139 | } | ||
| 140 | |||
| 141 | /** | ||
| 142 | * Fetch, format and print a message with an arbitrary | ||
| 143 | * number of message arguments. | ||
| 144 | */ | ||
| 145 | static void println(String key, Object [] arguments) { | ||
| 146 | System.out.println(format(key, arguments)); | ||
| 147 | } | ||
| 148 | |||
| 149 | /** | ||
| 150 | * Print a newline, followed by the string. | ||
| 151 | */ | ||
| 152 | static void lnprint(String key) { | ||
| 153 | System.out.println(); | ||
| 154 | System.out.print(textResources.getString(key)); | ||
| 155 | } | ||
| 156 | |||
| 157 | static void lnprint(String key, String argument) { | ||
| 158 | System.out.println(); | ||
| 159 | System.out.print(format(key, argument)); | ||
| 160 | } | ||
| 161 | |||
| 162 | static void lnprint(String key, Object [] arguments) { | ||
| 163 | System.out.println(); | ||
| 164 | System.out.print(format(key, arguments)); | ||
| 165 | } | ||
| 166 | |||
| 167 | /** | ||
| 168 | * Print an exception message with a stack trace. | ||
| 169 | */ | ||
| 170 | static void printException(String key, Exception e) { | ||
| 171 | if (key != null) { | ||
| 172 | try { | ||
| 173 | println(key); | ||
| 174 | } catch (MissingResourceException mex) { | ||
| 175 | printDirectln(key); | ||
| 176 | } | ||
| 177 | } | ||
| 178 | System.out.flush(); | ||
| 179 | e.printStackTrace(); | ||
| 180 | } | ||
| 181 | |||
| 182 | static void printPrompt() { | ||
| 183 | ThreadInfo threadInfo = ThreadInfo.getCurrentThreadInfo(); | ||
| 184 | if (threadInfo == null) { | ||
| 185 | System.out.print | ||
| 186 | (MessageOutput.format("jdb prompt with no current thread")); | ||
| 187 | } else { | ||
| 188 | System.out.print | ||
| 189 | (MessageOutput.format("jdb prompt thread name and current stack frame", | ||
| 190 | new Object [] { | ||
| 191 | threadInfo.getThread().name(), | ||
| 192 | new Integer (threadInfo.getCurrentFrameIndex() + 1)})); | ||
| 193 | } | ||
| 194 | System.out.flush(); | ||
| 195 | } | ||
| 196 | } | ||