/*
* 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.commons.utils;
/**
* Jul 8, 2004
*
* @author: Tuan Nguyen
* @version: $Id: ExceptionUtil.java,v 1.2 2004/10/05 14:40:47 tuan08 Exp $
*/
public class ExceptionUtil
{
private static String LINE_SEPARATOR = PrivilegedSystemHelper.getProperty("line.separator");
static public String getExoStackTrace(Throwable t)
{
StackTraceElement[] elements = t.getStackTrace();
StringBuffer b = new StringBuffer();
b.append(t.getMessage()).append(LINE_SEPARATOR);
boolean appendDot = true;
for (int i = 0; i < elements.length; i++)
{
if (i < 10)
{
b.append(" at ").append(elements[i].toString()).append(LINE_SEPARATOR);
}
else
{
if (elements[i].getClassName().startsWith("exo."))
{
b.append(" at ").append(elements[i].toString()).append(LINE_SEPARATOR);
appendDot = true;
}
else
{
if (appendDot)
{
b.append(" [...................................]").append(LINE_SEPARATOR);
appendDot = false;
}
}
}
}
return b.toString();
}
static public String getStackTrace(Throwable t, int numberOfLine)
{
StackTraceElement[] elements = t.getStackTrace();
if (numberOfLine > elements.length)
numberOfLine = elements.length;
StringBuffer b = new StringBuffer();
b.append(t.getMessage()).append(LINE_SEPARATOR);
for (int i = 0; i < numberOfLine; i++)
{
b.append(elements[i].toString()).append(LINE_SEPARATOR);
}
return b.toString();
}
static public Throwable getRootCause(Throwable t)
{
Throwable root = t;
while (root.getCause() != null)
{
root = root.getCause();
}
return root;
}
}