org.apache.commons.io.input

Class RandomAccessFileInputStream

java.lang.Object

java.io.InputStream

org.apache.commons.io.input.AbstractInputStream

org.apache.commons.io.input.RandomAccessFileInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class RandomAccessFileInputStream
extends AbstractInputStream

Streams data from a RandomAccessFile starting at its current position.

To build an instance, use RandomAccessFileInputStream.Builder.

See Also:

RandomAccessFileInputStream.Builder

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RandomAccessFileInputStream.Builder Builds a new RandomAccessFileInputStream.

Method Summary

Modifier and Type	Method and Description
int	available() Gets an estimate of the number of bytes that can be read (or skipped over) from this input stream.
long	availableLong() Gets the number of bytes that can be read (or skipped over) from this input stream.
static RandomAccessFileInputStream.Builder	builder() Constructs a new RandomAccessFileInputStream.Builder.
void	close()
long	copy(long pos, long size, OutputStream os) Copies our bytes from the given starting position for a size to the output stream.
RandomAccessFile	getRandomAccessFile() Gets the underlying file.
boolean	isCloseOnClose() Tests whether to close the underlying file when this stream is closed, defaults to false for compatibility.
int	read()
int	read(byte[] bytes)
int	read(byte[] bytes, int offset, int length)
long	skip(long skipCount)

Methods inherited from class org.apache.commons.io.input.AbstractInputStream

checkOpen, isClosed, setClosed

Methods inherited from class java.io.InputStream

mark, markSupported, reset

Methods inherited from class java.lang.Object

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

Method Detail

available

public int available()
              throws IOException

Gets an estimate of the number of bytes that can be read (or skipped over) from this input stream.

If there are more than Integer.MAX_VALUE bytes available, return Integer.MAX_VALUE.

Overrides:

available in class InputStream

Returns:

An estimate of the number of bytes that can be read.

Throws:

IOException - If an I/O error occurs.

availableLong

public long availableLong()
                   throws IOException

Gets the number of bytes that can be read (or skipped over) from this input stream.

Returns:

The number of bytes that can be read.

Throws:

IOException - If an I/O error occurs.

builder

public static RandomAccessFileInputStream.Builder builder()

Constructs a new RandomAccessFileInputStream.Builder.

Returns:

a new RandomAccessFileInputStream.Builder.

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class AbstractInputStream

Throws:

IOException

copy

public long copy(long pos,
                 long size,
                 OutputStream os)
          throws IOException

Copies our bytes from the given starting position for a size to the output stream.

Parameters:

pos - Where to start copying. The offset position, measured in bytes from the beginning of the file, at which to set the file pointer.

size - The number of bytes to copy.

os - Where to copy.

Returns:

The number of bytes copied..

Throws:

IOException - if pos is less than 0 or if an I/O error occurs.

getRandomAccessFile

public RandomAccessFile getRandomAccessFile()

Gets the underlying file.

Returns:

the underlying file.

isCloseOnClose

public boolean isCloseOnClose()

Tests whether to close the underlying file when this stream is closed, defaults to false for compatibility.

Returns:

Whether to close the underlying file when this stream is closed.

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] bytes)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

read

public int read(byte[] bytes,
                int offset,
                int length)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

skip

public long skip(long skipCount)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException