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Forgot this one.

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git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/branches/REL_1_5_BRANCH@352664 13f79535-47bb-0310-9956-ffa450edef68
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Glen Stampoultzis 2002-06-09 12:42:42 +00:00
parent d7672fa259
commit bc4ab79fdd
1 changed files with 116 additions and 0 deletions
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116
src/java/org/apache/poi/util/HexRead.java Normal file
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package org.apache.poi.util;
import java.io.IOException;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.List;
import java.util.ArrayList;
public class HexRead
{
public static byte[] readTestData( String filename )
throws IOException
{
File file = new File( filename );
FileInputStream stream = new FileInputStream( file );
int characterCount = 0;
byte b = (byte) 0;
List bytes = new ArrayList();
boolean done = false;
while ( !done )
{
int count = stream.read();
switch ( count )
{
case '#':
readToEOL(stream);
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
b <<= 4;
b += (byte) ( count - '0' );
characterCount++;
if ( characterCount == 2 )
{
bytes.add( new Byte( b ) );
characterCount = 0;
b = (byte) 0;
}
break;
case 'A':
case 'B':
case 'C':
case 'D':
case 'E':
case 'F':
b <<= 4;
b += (byte) ( count + 10 - 'A' );
characterCount++;
if ( characterCount == 2 )
{
bytes.add( new Byte( b ) );
characterCount = 0;
b = (byte) 0;
}
break;
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
b <<= 4;
b += (byte) ( count + 10 - 'a' );
characterCount++;
if ( characterCount == 2 )
{
bytes.add( new Byte( b ) );
characterCount = 0;
b = (byte) 0;
}
break;
case -1:
done = true;
break;
default :
break;
}
}
stream.close();
Byte[] polished = (Byte[]) bytes.toArray( new Byte[0] );
byte[] rval = new byte[polished.length];
for ( int j = 0; j < polished.length; j++ )
{
rval[j] = polished[j].byteValue();
}
return rval;
}
static private void readToEOL( InputStream stream ) throws IOException
{
int c = stream.read();
while ( c != -1 && c != '\n' && c != '\r')
{
c = stream.read();
}
}
}