/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.jcr.ext.backup.impl;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.List;
/**
* Created by The eXo Platform SAS Author : Peter Nedonosko peter.nedonosko@exoplatform.com.ua
* 15.01.2008
*
* @author <a href="mailto:peter.nedonosko@exoplatform.com.ua">Peter Nedonosko</a>
* @version $Id: BackupError.java 627 2008-01-15 14:18:58Z pnedonosko $
*/
public class BackupError extends BackupMessage
{
final List<StackTraceElement[]> stackTraces = new ArrayList<StackTraceElement[]>();
BackupError(Throwable e)
{
super(e.toString());
readStackTrace(e);
}
BackupError(String description, Throwable e)
{
super(description);
readStackTrace(e);
}
BackupError(String description, List<StackTraceElement[]> clone)
{
super(description);
this.stackTraces.addAll(clone);
}
public boolean isError()
{
return true;
}
private void readStackTrace(Throwable e)
{
this.stackTraces.add(e.getStackTrace());
Throwable cause;
while ((cause = e.getCause()) != null)
{
this.stackTraces.add(cause.getStackTrace());
}
}
public void printStackTrace()
{
printStackTrace(System.err);
}
public void printStackTrace(PrintStream s)
{
synchronized (s)
{
s.println("Backup error: " + message);
if (stackTraces.size() > 0)
{
StackTraceElement[] ourTrace = stackTraces.get(0);
for (int i = 0; i < ourTrace.length; i++)
s.println("\tat " + ourTrace[i]);
for (int i = 1; i < stackTraces.size(); i++)
{
printStackTraceAsCause(s, ourTrace, stackTraces.get(i));
}
}
}
}
private void printStackTraceAsCause(PrintStream s, StackTraceElement[] ourTrace, StackTraceElement[] causedTrace)
{
// Compute number of frames in common between this and caused
int m = ourTrace.length - 1, n = causedTrace.length - 1;
while (m >= 0 && n >= 0 && ourTrace[m].equals(causedTrace[n]))
{
m--;
n--;
}
int framesInCommon = ourTrace.length - 1 - m;
s.println("Caused by: " + this);
for (int i = 0; i <= m; i++)
s.println("\tat " + ourTrace[i]);
if (framesInCommon != 0)
s.println("\t... " + framesInCommon + " more");
}
}