Top Description Fields Constructors Methods
org.xnio.streams

public final Class LimitedOutputStream

extends OutputStream
Class Inheritance
Imports
java.io.IOException, .InterruptedIOException, .OutputStream

An output stream which truncates the writable output to the given length. Attempting to exceed the fixed limit will result in an exception.
Author
David M. Lloyd

Field Summary

Modifier and TypeField and Description
private final OutputStream
private long

Constructor Summary

AccessConstructor and Description
public
LimitedOutputStream(final OutputStream
the delegate output stream
delegate
,
final long
the number of bytes to allow
size
)

Construct a new instance.

Method Summary

Modifier and TypeMethod and Description
public void
close()

Overrides java.io.OutputStream.close.

Implements java.io.Closeable.close.

Closes this output stream and releases any system resources associated with this stream.

public void
flush()

Overrides java.io.OutputStream.flush.

Implements java.io.Flushable.flush.

Flushes this output stream and forces any buffered output bytes to be written out.

private static IOException
public void
write(final int
the byte.
b
)

Implements abstract java.io.OutputStream.write.

Writes the specified byte to this output stream.

public void
write(final byte[]
the data.
b
,
final int
the start offset in the data.
off
,
final int
the number of bytes to write.
len
)

Overrides java.io.OutputStream.write.

Writes len bytes from the specified byte array starting at offset off to this output stream.

Inherited from java.io.OutputStream:
nullOutputStreamwrite

Field Detail

delegateback to summary
private final OutputStream delegate
remainingback to summary
private long remaining

Constructor Detail

LimitedOutputStreamback to summary
public LimitedOutputStream(final OutputStream delegate, final long size)

Construct a new instance.

Parameters
delegate:OutputStream

the delegate output stream

size:long

the number of bytes to allow

Method Detail

closeback to summary
public void close() throws IOException

Overrides java.io.OutputStream.close.

Implements java.io.Closeable.close.

Doc from java.io.OutputStream.close.

Closes this output stream and releases any system resources associated with this stream. The general contract of close is that it closes the output stream. A closed stream cannot perform output operations and cannot be reopened.

Exceptions
IOException:
if an I/O error occurs.
flushback to summary
public void flush() throws IOException

Overrides java.io.OutputStream.flush.

Implements java.io.Flushable.flush.

Doc from java.io.OutputStream.flush.

Flushes this output stream and forces any buffered output bytes to be written out. The general contract of flush is that calling it is an indication that, if any bytes previously written have been buffered by the implementation of the output stream, such bytes should immediately be written to their intended destination.

If the intended destination of this stream is an abstraction provided by the underlying operating system, for example a file, then flushing the stream guarantees only that bytes previously written to the stream are passed to the operating system for writing; it does not guarantee that they are actually written to a physical device such as a disk drive.

Exceptions
IOException:
if an I/O error occurs.
notEnoughSpaceback to summary
private static IOException notEnoughSpace()
writeback to summary
public void write(final int b) throws IOException

Implements abstract java.io.OutputStream.write.

Doc from java.io.OutputStream.write.

Writes the specified byte to this output stream. The general contract for write is that one byte is written to the output stream. The byte to be written is the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.

Parameters
b:int

the byte.

Exceptions
IOException:
if an I/O error occurs. In particular, an IOException may be thrown if the output stream has been closed.
writeback to summary
public void write(final byte[] b, final int off, final int len) throws IOException

Overrides java.io.OutputStream.write.

Doc from java.io.OutputStream.write.

Writes len bytes from the specified byte array starting at offset off to this output stream. The general contract for write(b, off, len) is that some of the bytes in the array b are written to the output stream in order; element b[off] is the first byte written and b[off+len-1] is the last byte written by this operation.

If b is null, a NullPointerException is thrown.

If off is negative, or len is negative, or off+len is greater than the length of the array b, then an IndexOutOfBoundsException is thrown.

Parameters
b:byte[]

the data.

off:int

the start offset in the data.

len:int

the number of bytes to write.

Exceptions
IOException:
if an I/O error occurs. In particular, an IOException is thrown if the output stream is closed.