ini/trakem2/utils/IJError.java

   1 /**
   2
   3 TrakEM2 plugin for ImageJ(C).
   4 Copyright (C) 2005, 2006 Albert Cardona and Rodney Douglas.
   5
   6 This program is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU General Public License
   8 as published by the Free Software Foundation (http://www.gnu.org/licenses/gpl.txt )
   9
  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.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 You may contact Albert Cardona at acardona at ini.phys.ethz.ch
  20 Institute of Neuroinformatics, University of Zurich / ETH, Switzerland.
  21 **/
  22
  23 package ini.trakem2.utils;
  24
  25
  26
  27 import java.io.CharArrayWriter;
  28 import java.io.PrintWriter;
  29
  30 /** A class to easily show the stack trace of an error in different operating systems.
  31  *
  32  */
  33 public class IJError {
  34
  35         static public final void print(final Throwable e) {
  36                 print(e, false);
  37         }
  38         static public final void print(final Throwable e, final boolean stdout) {
  39
  40                 CharArrayWriter caw = new CharArrayWriter();
  41                 PrintWriter pw = new PrintWriter(caw);
  42                 e.printStackTrace(pw);
  43                 String s = caw.toString();
  44                 if (isMacintosh()) {
  45                         if (s.indexOf("ThreadDeath")>0)
  46                                 ;//return null;
  47                         else s = fixNewLines(s);
  48                 }
  49                 String msg = "==================\nERROR:\n" + s + "\n======================";
  50                 if (stdout) Utils.log2(msg);
  51                 else Utils.log(msg);
  52         }
  53
  54         /** Converts carriage returns to line feeds. Copied from ij.util.tools by Wayne Rasband*/
  55
  56         static final String fixNewLines(final String s) {
  57                 final char[] chars = s.toCharArray();
  58                 for (int i=0; i<chars.length; i++) {
  59                         if (chars[i]=='\r') chars[i] = '\n';
  60                 }
  61                 return new String(chars);
  62         }
  63
  64         static String osname;
  65         static boolean isWin, isMac;
  66
  67         static {
  68                 osname = System.getProperty("os.name");
  69                 isWin = osname.startsWith("Windows");
  70                 isMac = !isWin && osname.startsWith("Mac");
  71         }
  72
  73         static boolean isMacintosh() {
  74                 return isMac;
  75         }
  76 }