org.apache.fontbox.ttf
Class RAFDataStream

java.lang.Object
  extended by org.apache.fontbox.ttf.TTFDataStream
      extended by org.apache.fontbox.ttf.RAFDataStream

public class RAFDataStream
extends TTFDataStream

An implementation of the TTFDataStream that goes against a RAF.

Version:
$Revision: 1.2 $
Author:
Ben Litchfield (ben@benlitchfield.com)

Constructor Summary
RAFDataStream(File file, String mode)
          Constructor.
RAFDataStream(String name, String mode)
          Constructor.
 
Method Summary
 void close()
          Close the underlying resources.
 long getCurrentPosition()
          Get the current position in the stream.
 InputStream getOriginalData()
          This will get the original data file that was used for this stream.
 int read()
          Read an unsigned byte.
 int read(byte[] b, int off, int len)
           
 long readLong()
          Read an unsigned byte.
 short readSignedShort()
          Read an signed short.
 int readUnsignedShort()
          Read an unsigned short.
 void seek(long pos)
          Seek into the datasource.
 
Methods inherited from class org.apache.fontbox.ttf.TTFDataStream
read, read32Fixed, readInternationalDate, readSignedByte, readString, readString, readUnsignedInt, readUnsignedShortArray
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RAFDataStream

public RAFDataStream(String name,
                     String mode)
              throws FileNotFoundException
Constructor.

Parameters:
name - The raf file.
mode - The mode to open the RAF.
Throws:
FileNotFoundException - If there is a problem creating the RAF.
See Also:
RandomAccessFile.RandomAccessFile( String, String )

RAFDataStream

public RAFDataStream(File file,
                     String mode)
              throws FileNotFoundException
Constructor.

Parameters:
file - The raf file.
mode - The mode to open the RAF.
Throws:
FileNotFoundException - If there is a problem creating the RAF.
See Also:
RandomAccessFile.RandomAccessFile( File, String )
Method Detail

readSignedShort

public short readSignedShort()
                      throws IOException
Read an signed short.

Specified by:
readSignedShort in class TTFDataStream
Returns:
An signed short.
Throws:
IOException - If there is an error reading the data.

getCurrentPosition

public long getCurrentPosition()
                        throws IOException
Get the current position in the stream.

Specified by:
getCurrentPosition in class TTFDataStream
Returns:
The current position in the stream.
Throws:
IOException - If an error occurs while reading the stream.

close

public void close()
           throws IOException
Close the underlying resources.

Specified by:
close in class TTFDataStream
Throws:
IOException - If there is an error closing the resources.

read

public int read()
         throws IOException
Read an unsigned byte.

Specified by:
read in class TTFDataStream
Returns:
An unsigned byte.
Throws:
IOException - If there is an error reading the data.

readUnsignedShort

public int readUnsignedShort()
                      throws IOException
Read an unsigned short.

Specified by:
readUnsignedShort in class TTFDataStream
Returns:
An unsigned short.
Throws:
IOException - If there is an error reading the data.

readLong

public long readLong()
              throws IOException
Read an unsigned byte.

Specified by:
readLong in class TTFDataStream
Returns:
An unsigned byte.
Throws:
IOException - If there is an error reading the data.

seek

public void seek(long pos)
          throws IOException
Seek into the datasource.

Specified by:
seek in class TTFDataStream
Parameters:
pos - The position to seek to.
Throws:
IOException - If there is an error seeking to that position.

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException
Specified by:
read in class TTFDataStream
Parameters:
b - The buffer to write to.
off - The offset into the buffer.
len - The length into the buffer.
Returns:
The number of bytes read.
Throws:
IOException - If there is an error reading from the stream.
See Also:
InputStream.read( byte[], int, int )

getOriginalData

public InputStream getOriginalData()
                            throws IOException
This will get the original data file that was used for this stream.

Specified by:
getOriginalData in class TTFDataStream
Returns:
The data that was read from.
Throws:
IOException - If there is an issue reading the data.


Copyright © 2008-2011 Apache Software Foundation. All Rights Reserved.