/**
*
* Copyright (C) 2000-2004 Enterprise Distributed Technologies Ltd
*
* www.enterprisedt.com
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Bug fixes, suggestions and comments should be sent to support@enterprisedt.com
*
* Change Log:
*
* $Log: FileAppender.java,v $
* Revision 1.8 2010-10-22 03:53:07 bruceb
* closed checks and remove stderr printing
*
* Revision 1.7 2010-10-15 06:10:29 bruceb
* rolling file appender changes
*
* Revision 1.6 2007-04-26 04:21:47 hans
* Keep reference to File object.
*
* Revision 1.5 2006/10/12 12:38:58 bruceb
* synchronized methods
*
* Revision 1.4 2006/10/11 08:43:11 hans
* made cvsId final
*
* Revision 1.3 2005/01/28 16:39:15 bruceb
* flush FileAppender
*
* Revision 1.2 2004/08/16 21:08:08 bruceb
* made cvsids public
*
* Revision 1.1 2004/05/01 16:55:42 bruceb
* first cut
*
*
*/
package com.enterprisedt.util.debug;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
/**
* Appends log statements to a file
*
* @author Bruce Blackshaw
* @version $Revision: 1.8 $
*/
public class FileAppender implements Appender {
/**
* Revision control id
*/
public final static String cvsId = "@(#)$Id: FileAppender.java,v 1.8 2010-10-22 03:53:07 bruceb Exp $";
/**
* Destination
*/
protected PrintWriter log;
/**
* Path of logging file.
*/
private String file;
/**
* True if closed
*/
protected boolean closed = false;
/**
* Constructor
*
* @param file file to log to
* @throws IOException
*/
public FileAppender(String file) throws IOException {
this.file = file;
open();
}
protected synchronized void open() throws IOException {
log = new PrintWriter(new FileWriter(file, true), true);
closed = false;
}
/**
* Log a message
*
* @param msg message to log
*/
public synchronized void log(String msg) {
if (!closed)
log.println(msg);
}
/* (non-Javadoc)
* @see com.enterprisedt.util.debug.Appender#log(java.lang.Throwable)
*/
public synchronized void log(Throwable t) {
if (!closed) {
t.printStackTrace(log);
log.println();
}
}
/* (non-Javadoc)
* @see com.enterprisedt.util.debug.Appender#close()
*/
public synchronized void close() {
if (!closed) {
closed = true;
log.flush();
log.close();
log = null;
}
}
/**
* Returns the path of the logging file.
*
* @return the path of the logging file.
*/
public String getFile() {
return file;
}
}