org.brains2b.thex.tasks
Class FindTask

java.lang.Object
  org.brains2b.task.DefaultTask
      org.brains2b.thex.tasks.FindTask

All Implemented Interfaces:

java.lang.Runnable, org.brains2b.task.Task

public class FindTask
extends org.brains2b.task.DefaultTask

Runnable Task to allow finding an array of bytes from a document and locate and mark the results

Also implements a static method to find the first offset of the byte[] within a BinaryDocument

Version:

$Revision: 1.2 $ $Date: 2010/01/15 03:53:05 $

Author:

dennis@brains2b.nl

Field Summary

Fields inherited from interface org.brains2b.task.Task

RESULT_ERROR, RESULT_OK, RESULT_WARNING

Constructor Summary

FindTask(javax.swing.text.JTextComponent t, byte[] b, int start, int end, javax.swing.text.Position.Bias direction, boolean findAll)
Constructor for Task

Method Summary

static int	find(BinaryDocument doc, byte[] bb, int start, int end) find the first occurence of byte[] in a BinaryDocument
void	run() run the find as defined by the constructor

Methods inherited from class org.brains2b.task.DefaultTask

addException, addMessage, addTaskListener, fireTaskEvent, getMax, getMessages, getMin, getPosition, getResult, isFinished, progress, progress, removeTaskListener, setFinished, setMax, setMin, setResult

Methods inherited from class java.lang.Object

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

Constructor Detail

FindTask

public FindTask(javax.swing.text.JTextComponent t,
                byte[] b,
                int start,
                int end,
                javax.swing.text.Position.Bias direction,
                boolean findAll)

Constructor for Task

Parameters:

t - JTextComponent the component that displays the BinaryDocument

b - byte[], the bytes to look for

start - int, the location to start looking from

end - int, the location after which the find can be terminated

direction - Bias, Position.Bias.Forward or Position.Bias.Backward, Position.Bias.Forward if null is supplied

findAll - boolean, if true all occurrences of the byte[] will be found, otherwise only the first occurance will be shown

Method Detail

run

public void run()

run the find as defined by the constructor

find

public static final int find(BinaryDocument doc,
                             byte[] bb,
                             int start,
                             int end)

find the first occurence of byte[] in a BinaryDocument

Parameters:

doc - BinaryDocument, the document to look in

bb - byte[], the bytes to look for

start - int, the location to start looking from

end - int, the location after which the find can be terminated

Returns:

int the first location at which the bytes[] where found in the document after start and before end