/*
* Copyright (c) 1995, 2000, Oracle and/or its affiliates. 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.misc;
/**
* MessageUtils: miscellaneous utilities for handling error and status
* properties and messages.
*
* @author Herb Jellinek
*/
public class MessageUtils {
// can instantiate it for to allow less verbose use - via instance
// instead of classname
public MessageUtils() { }
public static String subst(String patt, String arg) {
String args[] = { arg };
return subst(patt, args);
}
public static String subst(String patt, String arg1, String arg2) {
String args[] = { arg1, arg2 };
return subst(patt, args);
}
public static String subst(String patt, String arg1, String arg2,
String arg3) {
String args[] = { arg1, arg2, arg3 };
return subst(patt, args);
}
public static String subst(String patt, String args[]) {
StringBuffer result = new StringBuffer();
int len = patt.length();
for (int i = 0; i >= 0 && i < len; i++) {
char ch = patt.charAt(i);
if (ch == '%') {
if (i != len) {
int index = Character.digit(patt.charAt(i + 1), 10);
if (index == -1) {
result.append(patt.charAt(i + 1));
i++;
} else if (index < args.length) {
result.append(args[index]);
i++;
}
}
} else {
result.append(ch);
}
}
return result.toString();
}
public static String substProp(String propName, String arg) {
return subst(System.getProperty(propName), arg);
}
public static String substProp(String propName, String arg1, String arg2) {
return subst(System.getProperty(propName), arg1, arg2);
}
public static String substProp(String propName, String arg1, String arg2,
String arg3) {
return subst(System.getProperty(propName), arg1, arg2, arg3);
}
/**
* Print a message directly to stderr, bypassing all the
* character conversion methods.
* @param msg message to print
*/
public static native void toStderr(String msg);
/**
* Print a message directly to stdout, bypassing all the
* character conversion methods.
* @param msg message to print
*/
public static native void toStdout(String msg);
// Short forms of the above
public static void err(String s) {
toStderr(s + "\n");
}
public static void out(String s) {
toStdout(s + "\n");
}
// Print a stack trace to stderr
//
public static void where() {
Throwable t = new Throwable();
StackTraceElement[] es = t.getStackTrace();
for (int i = 1; i < es.length; i++)
toStderr("\t" + es[i].toString() + "\n");
}
}