Package com.itextpdf.io.source

Class ThreadSafeRandomAccessSource

java.lang.Object

com.itextpdf.io.source.ThreadSafeRandomAccessSource

All Implemented Interfaces:

IRandomAccessSource

public class ThreadSafeRandomAccessSource
extends java.lang.Object
implements IRandomAccessSource

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.Object	lockObj
private IRandomAccessSource	source

Constructor Summary

Constructors

Constructor	Description
ThreadSafeRandomAccessSource(IRandomAccessSource source)

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this source.
int	get(long position)	Gets a byte at the specified position
int	get(long position, byte[] bytes, int off, int len)	Read an array of bytes of specified length from the specified position of source to the buffer applying the offset.
long	length()	Gets the length of the source

Methods inherited from class java.lang.Object

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

Field Detail

source

private final IRandomAccessSource source

lockObj

private final java.lang.Object lockObj

Constructor Detail

ThreadSafeRandomAccessSource

public ThreadSafeRandomAccessSource(IRandomAccessSource source)

Method Detail

get

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

Description copied from interface: IRandomAccessSource

Gets a byte at the specified position

Specified by:

get in interface IRandomAccessSource

Parameters:

position - byte position

Returns:

the byte, or -1 if EOF is reached

Throws:

java.io.IOException - in case of any reading error.

get

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

Description copied from interface: IRandomAccessSource

Read an array of bytes of specified length from the specified position of source to the buffer applying the offset. If the number of bytes requested cannot be read, all the possible bytes will be read to the buffer, and the number of actually read bytes will be returned.

Specified by:

get in interface IRandomAccessSource

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 - in case of any I/O error.

length

public long length()

Description copied from interface: IRandomAccessSource

Gets the length of the source

Specified by:

length in interface IRandomAccessSource

Returns:

the length of this source

close

public void close()
           throws java.io.IOException

Description copied from interface: IRandomAccessSource

Closes this source. The underlying data structure or source (if any) will also be closed

Specified by:

close in interface IRandomAccessSource

Throws:

java.io.IOException - in case of any reading error.