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JBoss Logging Log4j Implementation

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/*
  * JBoss, Home of Professional Open Source
  * Copyright 2005, JBoss Inc., and individual contributors as indicated
  * by the @authors tag. See the copyright.txt in the distribution for a
  * full listing of individual contributors.
  *
  * 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.jboss.logging.appender;

import java.io.File;

import java.net.URL;
import java.net.MalformedURLException;

import org.apache.log4j.helpers.LogLog;

/** 
 * An extention of the default Log4j FileAppender which
 * will make the directory structure for the set log file. 
 *
 * @version $Revision: 1958 $
 * @author  Jason Dillon
 */
public class FileAppender
   extends org.apache.log4j.FileAppender
{
   public void setFile(final String filename)
   {
      FileAppender.Helper.makePath(filename);
      super.setFile(filename);
   }

   /**
    * A helper for FileAppenders.
    */
   public static class Helper
   {
      public static void makePath(final String filename)
      {
         File dir;

         try {
            URL url = new URL(filename.trim());
            dir = new File(url.getFile()).getParentFile();
         }
         catch (MalformedURLException e) {
            dir = new File(filename.trim()).getParentFile();
         }

         if (!dir.exists()) {
            boolean success = dir.mkdirs();
            if (!success) {
               LogLog.error("Failed to create directory structure: " + dir);
            }
         }
      }
   }
}