public abstract class FSInputStream extends InputStream implements Seekable, PositionedReadable
Constructor and Description |
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FSInputStream() |
Modifier and Type | Method and Description |
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abstract long |
getPos()
Return the current offset from the start of the file
|
int |
read(long position,
byte[] buffer,
int offset,
int length)
Read upto the specified number of bytes, from a given
position within a file, and return the number of bytes read.
|
void |
readFully(long position,
byte[] buffer)
Read number of bytes equalt to the length of the buffer, from a given
position within a file.
|
void |
readFully(long position,
byte[] buffer,
int offset,
int length)
Read the specified number of bytes, from a given
position within a file.
|
abstract void |
seek(long pos)
Seek to the given offset from the start of the file.
|
abstract boolean |
seekToNewSource(long targetPos)
Seeks a different copy of the data.
|
available, close, mark, markSupported, read, read, read, reset, skip
public abstract void seek(long pos) throws IOException
seek
in interface Seekable
IOException
public abstract long getPos() throws IOException
getPos
in interface Seekable
IOException
public abstract boolean seekToNewSource(long targetPos) throws IOException
seekToNewSource
in interface Seekable
IOException
public int read(long position, byte[] buffer, int offset, int length) throws IOException
PositionedReadable
read
in interface PositionedReadable
IOException
public void readFully(long position, byte[] buffer, int offset, int length) throws IOException
PositionedReadable
readFully
in interface PositionedReadable
IOException
public void readFully(long position, byte[] buffer) throws IOException
PositionedReadable
readFully
in interface PositionedReadable
IOException
Copyright © 2010 The Apache Software Foundation