Package com.itextpdf.text.io

Class GetBufferedRandomAccessSource

java.lang.Object

com.itextpdf.text.io.GetBufferedRandomAccessSource

All Implemented Interfaces:

RandomAccessSource

public class GetBufferedRandomAccessSource
extends java.lang.Object
implements RandomAccessSource

Since:

5.3.5

Field Summary

Fields

Modifier and Type	Field	Description
private byte[]	getBuffer
private long	getBufferEnd
private long	getBufferStart
private RandomAccessSource	source	The source

Constructor Summary

Constructors

Constructor	Description
GetBufferedRandomAccessSource(RandomAccessSource source)	Constructs a new OffsetRandomAccessSource

Method Summary

Modifier and Type	Method	Description
void	close()	Does nothing - the underlying source is not closed
int	get(long position)	Gets a byte at the specified position
int	get(long position, byte[] bytes, int off, int len)	Gets an array at the specified position.
long	length()

Methods inherited from class java.lang.Object

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

Field Detail

source

private final RandomAccessSource source

The source

getBuffer

private final byte[] getBuffer

getBufferStart

private long getBufferStart

getBufferEnd

private long getBufferEnd

Constructor Detail

GetBufferedRandomAccessSource

public GetBufferedRandomAccessSource(RandomAccessSource source)

Constructs a new OffsetRandomAccessSource

Parameters:

source - the source

Method Detail

get

public int get(long position)
        throws java.io.IOException

Gets a byte at the specified position

Specified by:

get in interface RandomAccessSource

Returns:

the byte, or -1 if EOF is reached

Throws:

java.io.IOException

get

public int get(long position,
               byte[] bytes,
               int off,
               int len)
        throws java.io.IOException

Gets an array at the specified position. If the number of bytes requested cannot be read, the bytes that can be read will be placed in bytes and the number actually read will be returned.

Specified by:

get in interface RandomAccessSource

Parameters:

position - the position in the RandomAccessSource to read from

bytes - output buffer

off - offset into the output buffer where results will be placed

len - the number of bytes to read

Returns:

the number of bytes actually read, or -1 if the file is at EOF

Throws:

java.io.IOException

length

public long length()

Specified by:

length in interface RandomAccessSource

Returns:

the length of this source

close

public void close()
           throws java.io.IOException

Does nothing - the underlying source is not closed

Specified by:

close in interface RandomAccessSource

Throws:

java.io.IOException