/**
 * 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)
      throws FileNotFoundException {
    this.file = file;
    fos = new FileOutputStream(file, append);
    this.os = new BufferedOutputStream(fos);
    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);
  }

}
