io.georocket.util

Class Window

java.lang.Object

io.georocket.util.Window

public class Window
extends java.lang.Object

A dynamically resizable buffer that acts like a window being moved over a larger input stream

Author:

Michel Kraemer

Constructor Summary

Constructors

Constructor and Description
Window()

Method Summary

Modifier and Type	Method and Description
void	advanceTo(int pos) Remove bytes from the beginning of the window (i.e.
void	append(io.vertx.core.buffer.Buffer buf) Append data to the window (i.e.
byte[]	getBytes(int start, int end) Return a chunk from the window

Methods inherited from class java.lang.Object

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

Constructor Detail

Window

public Window()

Method Detail

append

public void append(io.vertx.core.buffer.Buffer buf)

Append data to the window (i.e. make it larger)

Parameters:

buf - the data to append

getBytes

public byte[] getBytes(int start,
                       int end)

Return a chunk from the window

Parameters:

start - the start position of the chunk. This value is absolute to the position in the larger input stream the window is being moved over.

end - the end position of the chunk. This value is absolute to the position in the larger input stream the window is being moved over.

Returns:

the chunk

advanceTo

public void advanceTo(int pos)

Remove bytes from the beginning of the window (i.e. make it smaller)

Parameters:

pos - the number of bytes to remove (or in other words: the number of bytes to advance the window forward without changing its end)