/*
* Copyright 2001-2002 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 org.visage.tools.debug.tty;
import java.io.PrintStream;
import java.util.*;
import java.text.MessageFormat;
/**
* Internationalization (i18n) convenience methods for jdb.
*
* All program output should flow through these methods, and this is
* the only class that should be printing directly or otherwise
* accessing System.[out,err].
*
* @bug 4348376
* @author Tim Bell
*/
public class MessageOutput {
/**
* The resource bundle containing localizable message content.
*/
private static ResourceBundle textResources;
static {
textResources = ResourceBundle.getBundle
("org.visage.tools.debug.tty.TTYResources",
Locale.getDefault());
}
/** Our message formatter. Allocated once, used many times */
private static MessageFormat messageFormat;
private PrintStream msErr = System.err;
private PrintStream msOut = System.out;
void resetOutputs() {
msErr = System.err;
msOut = System.out;
}
void setOutput(PrintStream out) {
if (out != null) {
msOut = out;
}
}
void setError(PrintStream err) {
if (err != null) {
msErr = err;
}
}
/**
* Fatal error notification. This is sent to msErr
* instead of msOut
*/
void fatalError(String messageKey) {
msErr.println();
msErr.println(format("Fatal error"));
msErr.println(format(messageKey));
}
/**
* "Format" a string by doing a simple key lookup.
*/
static String format(String key) {
return (textResources.getString(key));
}
/**
* Fetch and format a message with one string argument.
* This is the most common usage.
*/
static String format(String key, String argument) {
return format(key, new Object [] {argument});
}
/**
* Fetch a string by key lookup and format in the arguments.
*/
static synchronized String format(String key, Object [] arguments) {
if (messageFormat == null) {
messageFormat = new MessageFormat (textResources.getString(key));
} else {
messageFormat.applyPattern (textResources.getString(key));
}
return (messageFormat.format (arguments));
}
/**
* Print directly to msOut.
* Every rule has a few exceptions.
* The exceptions to "must use the MessageOutput formatters" are:
* VMConnection.dumpStream()
* TTY.monitorCommand()
* TTY.TTY() (for the '!!' command only)
* Commands.java (multiple locations)
* These are the only sites that should be calling this
* method.
*/
void printDirectln(String line) {
msOut.println(line);
msOut.flush();
}
void printDirect(String line) {
msOut.print(line);
}
void printDirect(char c) {
msOut.print(c);
}
/**
* Print a newline.
* Use this instead of '\n'
*/
void println() {
msOut.println();
msOut.flush();
}
/**
* Format and print a simple string.
*/
void print(String key) {
msOut.print(format(key));
}
/**
* Format and print a simple string.
*/
void println(String key) {
msOut.println(format(key));
msOut.flush();
}
/**
* Fetch, format and print a message with one string argument.
* This is the most common usage.
*/
void print(String key, String argument) {
msOut.print(format(key, argument));
}
void println(String key, String argument) {
msOut.println(format(key, argument));
msOut.flush();
}
/**
* Fetch, format and print a message with an arbitrary
* number of message arguments.
*/
void println(String key, Object [] arguments) {
msOut.println(format(key, arguments));
msOut.flush();
}
/**
* Print a newline, followed by the string.
*/
void lnprint(String key) {
msOut.println();
msOut.print(textResources.getString(key));
}
void lnprint(String key, String argument) {
msOut.println();
msOut.print(format(key, argument));
msOut.flush();
}
void lnprint(String key, Object [] arguments) {
msOut.println();
msOut.print(format(key, arguments));
msOut.flush();
}
/**
* Print an exception message with a stack trace.
*/
void printException(String key, Exception e) {
if (key != null) {
try {
println(key);
} catch (MissingResourceException mex) {
printDirectln(key);
}
}
msOut.flush();
e.printStackTrace();
}
void printPrompt(ThreadInfo threadInfo) {
if (threadInfo == null) {
msOut.print
(format("jdb prompt with no current thread"));
} else {
msOut.print
(format("jdb prompt thread name and current stack frame",
new Object [] {
threadInfo.getThread().name(),
new Integer (threadInfo.getCurrentFrameIndex() + 1)}));
}
msOut.flush();
}
}