/// <summary>
/// Creates a file output stream to write to the specified file
/// descriptor, which represents an existing connection to an actual
/// file in the file system.
/// <para>
/// First, if there is a security manager, its <code>checkWrite</code>
/// method is called with the file descriptor <code>fdObj</code>
/// argument as its argument.
/// </para>
/// <para>
/// If <code>fdObj</code> is null then a <code>NullPointerException</code>
/// is thrown.
/// </para>
/// <para>
/// This constructor does not throw an exception if <code>fdObj</code>
/// is <seealso cref="java.io.FileDescriptor#valid() invalid"/>.
/// However, if the methods are invoked on the resulting stream to attempt
/// I/O on the stream, an <code>IOException</code> is thrown.
///
/// </para>
/// </summary>
/// <param name="fdObj"> the file descriptor to be opened for writing </param>
/// <exception cref="SecurityException"> if a security manager exists and its
/// <code>checkWrite</code> method denies
/// write access to the file descriptor </exception>
/// <seealso cref= java.lang.SecurityManager#checkWrite(java.io.FileDescriptor) </seealso>
public FileOutputStream(FileDescriptor fdObj)
{
SecurityManager security = System.SecurityManager;
if (fdObj == null)
{
throw new NullPointerException();
}
if (security != null)
{
security.CheckWrite(fdObj);
}
this.Fd = fdObj;
this.Append = false;
this.Path = null;
Fd.Attach(this);
}
/// <summary>
/// Creates a <code>FileInputStream</code> by using the file descriptor
/// <code>fdObj</code>, which represents an existing connection to an
/// actual file in the file system.
/// <para>
/// If there is a security manager, its <code>checkRead</code> method is
/// called with the file descriptor <code>fdObj</code> as its argument to
/// see if it's ok to read the file descriptor. If read access is denied
/// to the file descriptor a <code>SecurityException</code> is thrown.
/// </para>
/// <para>
/// If <code>fdObj</code> is null then a <code>NullPointerException</code>
/// is thrown.
/// </para>
/// <para>
/// This constructor does not throw an exception if <code>fdObj</code>
/// is <seealso cref="java.io.FileDescriptor#valid() invalid"/>.
/// However, if the methods are invoked on the resulting stream to attempt
/// I/O on the stream, an <code>IOException</code> is thrown.
///
/// </para>
/// </summary>
/// <param name="fdObj"> the file descriptor to be opened for reading. </param>
/// <exception cref="SecurityException"> if a security manager exists and its
/// <code>checkRead</code> method denies read access to the
/// file descriptor. </exception>
/// <seealso cref= SecurityManager#checkRead(java.io.FileDescriptor) </seealso>
public FileInputStream(FileDescriptor fdObj)
{
SecurityManager security = System.SecurityManager;
if (fdObj == null)
{
throw new NullPointerException();
}
if (security != null)
{
security.CheckRead(fdObj);
}
Fd = fdObj;
Path = null;
/*
* FileDescriptor is being shared by streams.
* Register this stream with FileDescriptor tracker.
*/
Fd.Attach(this);
}
/// <summary>
/// Creates a <code>FileInputStream</code> by
/// opening a connection to an actual file,
/// the file named by the <code>File</code>
/// object <code>file</code> in the file system.
/// A new <code>FileDescriptor</code> object
/// is created to represent this file connection.
/// <para>
/// First, if there is a security manager,
/// its <code>checkRead</code> method is called
/// with the path represented by the <code>file</code>
/// argument as its argument.
/// </para>
/// <para>
/// If the named file does not exist, is a directory rather than a regular
/// file, or for some other reason cannot be opened for reading then a
/// <code>FileNotFoundException</code> is thrown.
///
/// </para>
/// </summary>
/// <param name="file"> the file to be opened for reading. </param>
/// <exception cref="FileNotFoundException"> if the file does not exist,
/// is a directory rather than a regular file,
/// or for some other reason cannot be opened for
/// reading. </exception>
/// <exception cref="SecurityException"> if a security manager exists and its
/// <code>checkRead</code> method denies read access to the file. </exception>
/// <seealso cref= java.io.File#getPath() </seealso>
/// <seealso cref= java.lang.SecurityManager#checkRead(java.lang.String) </seealso>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public FileInputStream(File file) throws FileNotFoundException
public FileInputStream(File file)
{
String name = (file != null ? file.Path : null);
SecurityManager security = System.SecurityManager;
if (security != null)
{
security.CheckRead(name);
}
if (name == null)
{
throw new NullPointerException();
}
if (file.Invalid)
{
throw new FileNotFoundException("Invalid file path");
}
Fd = new FileDescriptor();
Fd.Attach(this);
Path = name;
Open(name);
}
/// <summary>
/// Creates a file output stream to write to the file represented by
/// the specified <code>File</code> object. If the second argument is
/// <code>true</code>, then bytes will be written to the end of the file
/// rather than the beginning. A new <code>FileDescriptor</code> object is
/// created to represent this file connection.
/// <para>
/// First, if there is a security manager, its <code>checkWrite</code>
/// method is called with the path represented by the <code>file</code>
/// argument as its argument.
/// </para>
/// <para>
/// If the file exists but is a directory rather than a regular file, does
/// not exist but cannot be created, or cannot be opened for any other
/// reason then a <code>FileNotFoundException</code> is thrown.
///
/// </para>
/// </summary>
/// <param name="file"> the file to be opened for writing. </param>
/// <param name="append"> if <code>true</code>, then bytes will be written
/// to the end of the file rather than the beginning </param>
/// <exception cref="FileNotFoundException"> if the file exists but is a directory
/// rather than a regular file, does not exist but cannot
/// be created, or cannot be opened for any other reason </exception>
/// <exception cref="SecurityException"> if a security manager exists and its
/// <code>checkWrite</code> method denies write access
/// to the file. </exception>
/// <seealso cref= java.io.File#getPath() </seealso>
/// <seealso cref= java.lang.SecurityException </seealso>
/// <seealso cref= java.lang.SecurityManager#checkWrite(java.lang.String)
/// @since 1.4 </seealso>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public FileOutputStream(File file, boolean append) throws FileNotFoundException
public FileOutputStream(File file, bool append)
{
String name = (file != null ? file.Path : null);
SecurityManager security = System.SecurityManager;
if (security != null)
{
security.CheckWrite(name);
}
if (name == null)
{
throw new NullPointerException();
}
if (file.Invalid)
{
throw new FileNotFoundException("Invalid file path");
}
this.Fd = new FileDescriptor();
Fd.Attach(this);
this.Append = append;
this.Path = name;
Open(name, append);
}