/*
* 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 org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import java.util.ArrayList;
import java.util.Iterator;
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: BackupMessagesLog.java 760 2008-02-07 15:08:07Z pnedonosko $
*/
public class BackupMessagesLog
{
public static final int MESSAGES_MAXSIZE = 250;
protected Log log = ExoLogger.getLogger("exo.jcr.component.ext.BackupMessagesLog");
private final List<BackupMessage> messages = new ArrayList<BackupMessage>();
private final int messagesMaxSize;
public BackupMessagesLog()
{
this.messagesMaxSize = MESSAGES_MAXSIZE;
}
public BackupMessagesLog(int messagesMaxSize)
{
this.messagesMaxSize = messagesMaxSize;
}
public void addError(String message, Throwable e)
{
synchronized (messages)
{
messages.add(new BackupError(message, e));
removeEldest();
}
}
public void addMessage(String message)
{
synchronized (messages)
{
messages.add(new BackupMessage(message));
removeEldest();
}
}
private void removeEldest()
{
if (messages.size() > messagesMaxSize)
{
// remove eldest
int curentSize = messages.size();
for (Iterator<BackupMessage> i = messages.iterator(); i.hasNext() && (curentSize > messagesMaxSize);)
{
i.next();
i.remove();
curentSize--;
}
}
}
public BackupMessage[] getMessages()
{
synchronized (messages)
{
BackupMessage[] copy = new BackupMessage[messages.size()];
for (int i = 0; i < messages.size(); i++)
{
BackupMessage m = messages.get(i);
copy[i] =
m instanceof BackupError ? new BackupError(((BackupError)m).getMessage(), ((BackupError)m).stackTraces)
: new BackupMessage(m.getMessage());
}
return copy;
}
}
public void clear()
{
messages.clear();
}
}