gcc/libjava/java/io/FileOutputStream.java

// FileOutputStream.java - Write bytes to a file.

/* Copyright (C) 1998, 1999  Cygnus Solutions

   This file is part of libgcj.

This software is copyrighted work licensed under the terms of the
Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
details.  */

package java.io;

/**
 * @author Tom Tromey <tromey@cygnus.com>
 * @date September 24, 1998 
 */

/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
 * "The Java Language Specification", ISBN 0-201-63451-1
 * Status:  Complete to version 1.1.
 */

public class FileOutputStream extends OutputStream
{
  public FileOutputStream (String path, boolean append)
    throws SecurityException, IOException
  {
    SecurityManager s = System.getSecurityManager();
    if (s != null)
      s.checkWrite(path);
    fd = new FileDescriptor (path, (append
				    ? FileDescriptor.APPEND
				    : FileDescriptor.WRITE));
  }

  public FileOutputStream (String path) throws SecurityException, IOException
  {
    this (path, false);
  }

  public FileOutputStream (File file) throws SecurityException, IOException
  {
    this (file.getPath(), false);
  }

  public FileOutputStream (FileDescriptor fdObj) throws SecurityException
  {
    SecurityManager s = System.getSecurityManager();
    if (s != null)
      s.checkWrite(fdObj);
    fd = fdObj;
  }

  protected void finalize () throws IOException
  {
    // We don't actually need this, but we include it because it is
    // mentioned in the JCL.
  }

  public final FileDescriptor getFD () throws IOException
  {
    if (! fd.valid())
      throw new IOException ();
    return fd;
  }

  public void write (int b) throws IOException
  {
    fd.write (b);
  }

  public void write (byte[] b) throws IOException, NullPointerException
  {
    fd.write (b, 0, b.length);
  }

  public void write (byte[] b, int off, int len)
    throws IOException, NullPointerException, IndexOutOfBoundsException
  {
    if (off < 0 || len < 0 || off + len > b.length)
      throw new ArrayIndexOutOfBoundsException ();
    fd.write (b, off, len);
  }

  public void close () throws IOException
  {
    if (fd.valid())
      fd.close();
  }

  // Instance variables.
  private FileDescriptor fd;
}