3 * Copyright © 2013 František Kučera (frantovo.cz)
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 package info.globalcode.sql.dk.logging;
20 import info.globalcode.sql.dk.ColorfulPrintWriter;
21 import static info.globalcode.sql.dk.ColorfulPrintWriter.TerminalColor;
22 import static info.globalcode.sql.dk.ColorfulPrintWriter.TerminalStyle;
23 import static info.globalcode.sql.dk.Functions.rpad;
24 import java.io.StringWriter;
25 import java.util.logging.Formatter;
26 import java.util.logging.Level;
27 import java.util.logging.LogRecord;
30 * For console/terminal log output. Log messages are printed in brief and colorful form.
32 * @author Ing. František Kučera (frantovo.cz)
34 public class ColorfulConsoleFormatter extends Formatter {
36 private boolean printStacktrace = false;
39 public String format(LogRecord r) {
40 StringWriter sw = new StringWriter();
41 try (ColorfulPrintWriter out = new ColorfulPrintWriter(sw)) {
42 printLevel(out, r.getLevel());
44 printThrowable(out, r);
50 private void printLevel(ColorfulPrintWriter out, Level l) {
51 TerminalColor color = TerminalColor.Magenta;
53 if (l == Level.SEVERE) {
54 color = TerminalColor.Red;
55 } else if (l == Level.WARNING) {
56 color = TerminalColor.Yellow;
59 out.print(color, rpad(l.getLocalizedName() + ": ", 10));
62 private void printMessage(ColorfulPrintWriter out, LogRecord r) {
63 out.print(formatMessage(r));
66 private void printThrowable(ColorfulPrintWriter out, LogRecord r) {
67 Throwable t = r.getThrown();
70 out.print(TerminalColor.Red, t.getClass().getSimpleName());
71 String message = t.getLocalizedMessage();
72 if (message != null) {
74 if (printStacktrace) {
77 out.print(message.replaceAll("\\n", " "));
80 if (printStacktrace) {
82 out.setForegroundColor(TerminalColor.Yellow);
83 out.setStyle(TerminalStyle.Dim);
84 t.printStackTrace(out);
90 public boolean isPrintStacktrace() {
91 return printStacktrace;
94 public void setPrintStacktrace(boolean printStacktrace) {
95 this.printStacktrace = printStacktrace;