Package net.logstash.logback.util

Class ProxyOutputStream

java.lang.Object

java.io.OutputStream

net.logstash.logback.util.ProxyOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class ProxyOutputStream
extends OutputStream

A Proxy stream which acts as expected, that is it passes the method calls on to the proxied stream and doesn't change which methods are being called (unlike JDK FilterOutputStream).

Note: This class is for internal use only and subject to backward incompatible change at any time.

Author:

brenuart

Field Summary

Fields

Modifier and Type	Field	Description
protected OutputStream	delegate

Constructor Summary

Constructors

Constructor	Description
ProxyOutputStream(OutputStream delegate)	Constructs a new ProxyOutputStream.

Method Summary

Modifier and Type	Method	Description
protected OutputStream	assertStreamConnected()	Get the underlying OutputStream and assert it is connected.
void	close()	Invokes the delegate's close() method.
void	flush()	Invokes the delegate's flush() method.
protected void	handleIOException(IOException e)	Handle any IOExceptions thrown.
void	write(byte[] b)	Invokes the delegate's write(byte[]) method.
void	write(byte[] b, int off, int len)	Invokes the delegate's write(byte[]) method.
void	write(int b)	Invokes the delegate's write(int) method.

Methods inherited from class java.io.OutputStream

nullOutputStream

Methods inherited from class java.lang.Object

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

Field Details

delegate

protected OutputStream delegate

Constructor Details

ProxyOutputStream

public ProxyOutputStream(OutputStream delegate)

Constructs a new ProxyOutputStream.

Parameters:

delegate - the OutputStream to delegate to

Method Details

write

public void write(int b)
           throws IOException

Invokes the delegate's write(int) method.

Specified by:

write in class OutputStream

Parameters:

b - the byte to write

Throws:

IOException - if an I/O error occurs

write

public void write(byte[] b)
           throws IOException

Invokes the delegate's write(byte[]) method.

Overrides:

write in class OutputStream

Parameters:

b - the bytes to write

Throws:

IOException - if an I/O error occurs

write

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

Invokes the delegate's write(byte[]) method.

Overrides:

write in class OutputStream

Parameters:

b - the bytes to write

off - The start offset

len - The number of bytes to write

Throws:

IOException - if an I/O error occurs

flush

public void flush()
           throws IOException

Invokes the delegate's flush() method.

Specified by:

flush in interface Flushable

Overrides:

flush in class OutputStream

Throws:

IOException - if an I/O error occurs

close

public void close()
           throws IOException

Invokes the delegate's close() method.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class OutputStream

Throws:

IOException - if an I/O error occurs

handleIOException

protected void handleIOException(IOException e)
                          throws IOException

Handle any IOExceptions thrown.

This method provides a point to implement custom exception handling. The default behavior is to re-throw the exception.

Parameters:

e - The IOException thrown

Throws:

IOException - if an I/O error occurs

assertStreamConnected

protected OutputStream assertStreamConnected()
                                      throws IOException

Get the underlying OutputStream and assert it is connected.

Returns:

the underlying OutputStream

Throws:

IOException - thrown when the stream is not connected