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:

java.io.Closeable, java.lang.AutoCloseable

public class RandomAccessFileInputStream
extends AbstractInputStream

Streams data from a RandomAccessFile starting at its current position.

To build an instance, use RandomAccessFileInputStream.Builder.

Since:

2.8.0

See Also:

RandomAccessFileInputStream.Builder

Nested Class Summary

Nested Classes

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

Constructor Summary

Constructors

Constructor and Description
RandomAccessFileInputStream(java.io.RandomAccessFile file) Deprecated. Use builder(), RandomAccessFileInputStream.Builder, and RandomAccessFileInputStream.Builder.get()
RandomAccessFileInputStream(java.io.RandomAccessFile file, boolean propagateClose) Deprecated. Use builder(), RandomAccessFileInputStream.Builder, and RandomAccessFileInputStream.Builder.get()

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, java.io.OutputStream os) Copies our bytes from the given starting position for a size to the output stream.
java.io.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

isClosed, setClosed

Methods inherited from class java.io.InputStream

mark, markSupported, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomAccessFileInputStream

@Deprecated
public RandomAccessFileInputStream(java.io.RandomAccessFile file)

Deprecated. Use builder(), RandomAccessFileInputStream.Builder, and RandomAccessFileInputStream.Builder.get()

Constructs a new instance configured to leave the underlying file open when this stream is closed.

Parameters:

file - The file to stream.

RandomAccessFileInputStream

@Deprecated
public RandomAccessFileInputStream(java.io.RandomAccessFile file,
                                               boolean propagateClose)

Deprecated. Use builder(), RandomAccessFileInputStream.Builder, and RandomAccessFileInputStream.Builder.get()

Constructs a new instance.

Parameters:

file - The file to stream.

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

Method Detail

builder

public static RandomAccessFileInputStream.Builder builder()

Constructs a new RandomAccessFileInputStream.Builder.

Returns:

a new RandomAccessFileInputStream.Builder.

Since:

2.12.0

available

public int available()
              throws java.io.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 java.io.InputStream

Returns:

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

Throws:

java.io.IOException - If an I/O error occurs.

availableLong

public long availableLong()
                   throws java.io.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:

java.io.IOException - If an I/O error occurs.

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class AbstractInputStream

Throws:

java.io.IOException

copy

public long copy(long pos,
                 long size,
                 java.io.OutputStream os)
          throws java.io.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:

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

Since:

2.19.0

getRandomAccessFile

public java.io.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 java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(byte[] bytes)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

read

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

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

skip

public long skip(long skipCount)
          throws java.io.IOException

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException