/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.core.recovery;
  
  import java.io.*;
  import java.nio.channels.FileChannel;
  
  public class ResilientFileOutputStream extends ResilientOutputStreamBase {
  
      private File file;
      private FileOutputStream fos;
  
      public ResilientFileOutputStream(File file, boolean append, long bufferSize) throws FileNotFoundException {
          this.file = file;
          fos = new FileOutputStream(file, append);
          this.os = new BufferedOutputStream(fos, (int) bufferSize);
          this.presumedClean = true;
      }
  
      public FileChannel getChannel() {
          if (os == null) {
              return null;
          }
          return fos.getChannel();
      }
  
      public File getFile() {
          return file;
      }
  
      @Override
      String getDescription() {
          return "file [" + file + "]";
      }
  
      @Override
      OutputStream openNewOutputStream() throws IOException {
          // see LOGBACK-765
          fos = new FileOutputStream(file, true);
          return new BufferedOutputStream(fos);
      }
  
      @Override
      public String toString() {
          return "c.q.l.c.recovery.ResilientFileOutputStream@" + System.identityHashCode(this);
      }
  
  }