net.sf.mmm.crypto.io

Class OutputStreamWrapper

java.lang.Object

java.io.OutputStream

net.sf.mmm.crypto.io.OutputStreamWrapper

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

Direct Known Subclasses:

CryptorOutputStream, HashOutputStream

public class OutputStreamWrapper
extends OutputStream

An OutputStream that wraps another OutputStream to delegate to.

Since:

1.0.0

Author:

Joerg Hohwiller (hohwille at users.sourceforge.net)

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	closed
private OutputStream	delegate

Constructor Summary

Constructors

Constructor and Description
OutputStreamWrapper() The constructor.
OutputStreamWrapper(OutputStream delegate) The constructor.

Method Summary

Modifier and Type	Method and Description
void	close()
protected OutputStream	getDelegate()
protected boolean	isClosed()
protected void	requireNotClosed()
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class java.io.OutputStream

flush

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

delegate

private final OutputStream delegate

closed

private boolean closed

Constructor Detail

OutputStreamWrapper

public OutputStreamWrapper()

The constructor.

OutputStreamWrapper

public OutputStreamWrapper(OutputStream delegate)

The constructor.

Parameters:

delegate - the delegate. May be null.

Method Detail

getDelegate

protected OutputStream getDelegate()

Returns:

the wrapped OutputStream to delegate to. May be null for none (/dev/null.

requireNotClosed

protected void requireNotClosed()
                         throws IOException

Throws:

IOException - if the stream has already been closed.

write

public final void write(byte[] b)
                 throws IOException

Overrides:

write in class OutputStream

Throws:

IOException

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException

Overrides:

write in class OutputStream

Throws:

IOException

write

public void write(int b)
           throws IOException

Specified by:

write in class OutputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class OutputStream

Throws:

IOException

isClosed

protected boolean isClosed()

Returns:

true if closed, false otherwise.