Package com.itextpdf.text.io
Class GetBufferedRandomAccessSource
- java.lang.Object
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- com.itextpdf.text.io.GetBufferedRandomAccessSource
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- All Implemented Interfaces:
RandomAccessSource
public class GetBufferedRandomAccessSource extends java.lang.Object implements RandomAccessSource
- Since:
- 5.3.5
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Field Summary
Fields Modifier and Type Field Description private byte[]
getBuffer
private long
getBufferEnd
private long
getBufferStart
private RandomAccessSource
source
The source
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Constructor Summary
Constructors Constructor Description GetBufferedRandomAccessSource(RandomAccessSource source)
Constructs a new OffsetRandomAccessSource
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
close()
Does nothing - the underlying source is not closedint
get(long position)
Gets a byte at the specified positionint
get(long position, byte[] bytes, int off, int len)
Gets an array at the specified position.long
length()
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Field Detail
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source
private final RandomAccessSource source
The source
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getBuffer
private final byte[] getBuffer
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getBufferStart
private long getBufferStart
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getBufferEnd
private long getBufferEnd
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Constructor Detail
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GetBufferedRandomAccessSource
public GetBufferedRandomAccessSource(RandomAccessSource source)
Constructs a new OffsetRandomAccessSource- Parameters:
source
- the source
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Method Detail
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get
public int get(long position) throws java.io.IOException
Gets a byte at the specified position- Specified by:
get
in interfaceRandomAccessSource
- Returns:
- the byte, or -1 if EOF is reached
- Throws:
java.io.IOException
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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 interfaceRandomAccessSource
- 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
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length
public long length()
- Specified by:
length
in interfaceRandomAccessSource
- Returns:
- the length of this source
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close
public void close() throws java.io.IOException
Does nothing - the underlying source is not closed- Specified by:
close
in interfaceRandomAccessSource
- Throws:
java.io.IOException
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