de.uni_hildesheim.sse.monitoring.runtime.wrap

Class DelegatingOutputStream

java.lang.Object

java.io.OutputStream

de.uni_hildesheim.sse.monitoring.runtime.wrap.DelegatingOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

public class DelegatingOutputStream
extends java.io.OutputStream

A stream class delegating its operation to an arbitrary input stream while notifying the recorder about performed operations.

Since:

1.00

Version:

1.00

Author:

Holger Eichelberger

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	inWrite1 Stores if we are in a write method with 1 parameter (avoid double recording).
private boolean	inWrite3 Stores if we are in a write method with 3 parameters (avoid double recording).
private java.lang.String	recId Stores the recorder id to aggregate the notifications for.
private java.io.OutputStream	stream Stores the output stream to delegate to.
private StreamType	type Stores the type of stream to delegate to.

Constructor Summary

Constructors

Constructor and Description
DelegatingOutputStream(java.io.OutputStream stream, StreamType type) Creates a new delegating stream.
DelegatingOutputStream(java.io.OutputStream stream, StreamType type, java.lang.String recId) Creates a new delegating stream.

Method Summary

Modifier and Type	Method and Description
void	close() Closes the stream.
void	flush() Flushes the contents.
void	write(byte[] buffer) Writes a data array.
void	write(byte[] buffer, int off, int len) Writes a portion of a data array.
void	write(int value) Writes a byte to the stream.

Methods inherited from class java.lang.Object

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

Field Detail

stream

private java.io.OutputStream stream

Stores the output stream to delegate to.

inWrite3

private boolean inWrite3

Stores if we are in a write method with 3 parameters (avoid double recording).

inWrite1

private boolean inWrite1

Stores if we are in a write method with 1 parameter (avoid double recording).

type

private StreamType type

Stores the type of stream to delegate to.

recId

private java.lang.String recId

Stores the recorder id to aggregate the notifications for.

Constructor Detail

DelegatingOutputStream

public DelegatingOutputStream(java.io.OutputStream stream,
                              StreamType type)

Creates a new delegating stream.

Parameters:

stream - the stream to delegate the operations to

type - the type of the stream

Since:

1.00

DelegatingOutputStream

public DelegatingOutputStream(java.io.OutputStream stream,
                              StreamType type,
                              java.lang.String recId)

Creates a new delegating stream.

Parameters:

stream - the stream to delegate the operations to

type - the type of the stream

recId - the recorder id to aggregate the notifications for

Since:

1.00

Method Detail

write

public void write(int value)
           throws java.io.IOException

Writes a byte to the stream.

Specified by:

write in class java.io.OutputStream

Parameters:

value - the data byte

Throws:

java.io.IOException - If an I/O error occurs

write

public void write(byte[] buffer)
           throws java.io.IOException

Writes a data array.

Overrides:

write in class java.io.OutputStream

Parameters:

buffer - the data array

Throws:

java.io.IOException - If an I/O error occurs

write

public void write(byte[] buffer,
                  int off,
                  int len)
           throws java.io.IOException

Writes a portion of a data array.

Overrides:

write in class java.io.OutputStream

Parameters:

buffer - the data array

off - Offset from which to start writing characters

len - Number of characters to write

Throws:

java.io.IOException - If an I/O error occurs

flush

public void flush()
           throws java.io.IOException

Flushes the contents.

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.OutputStream

Throws:

java.io.IOException - in case of I/O errors

close

public void close()
           throws java.io.IOException

Closes the stream.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.OutputStream

Throws:

java.io.IOException - in case of I/O errors