Package com.itextpdf.io.source
Class ThreadSafeRandomAccessSource
- java.lang.Object
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- com.itextpdf.io.source.ThreadSafeRandomAccessSource
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- All Implemented Interfaces:
IRandomAccessSource
public class ThreadSafeRandomAccessSource extends java.lang.Object implements IRandomAccessSource
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Field Summary
Fields Modifier and Type Field Description private java.lang.Object
lockObj
private IRandomAccessSource
source
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Constructor Summary
Constructors Constructor Description ThreadSafeRandomAccessSource(IRandomAccessSource source)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
close()
Closes this source.int
get(long position)
Gets a byte at the specified positionint
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
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Field Detail
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source
private final IRandomAccessSource source
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lockObj
private final java.lang.Object lockObj
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Constructor Detail
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ThreadSafeRandomAccessSource
public ThreadSafeRandomAccessSource(IRandomAccessSource source)
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Method Detail
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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 interfaceIRandomAccessSource
- Parameters:
position
- byte position- Returns:
- the byte, or -1 if EOF is reached
- Throws:
java.io.IOException
- in case of any reading error.
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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 interfaceIRandomAccessSource
- Parameters:
position
- the position in the RandomAccessSource to read frombytes
- output bufferoff
- offset into the output buffer where results will be placedlen
- 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.
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length
public long length()
Description copied from interface:IRandomAccessSource
Gets the length of the source- Specified by:
length
in interfaceIRandomAccessSource
- Returns:
- the length of this source
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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 interfaceIRandomAccessSource
- Throws:
java.io.IOException
- in case of any reading error.
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