org.tukaani.xz
Class SeekableFileInputStream

java.lang.Object
  java.io.InputStream
      org.tukaani.xz.SeekableInputStream
          org.tukaani.xz.SeekableFileInputStream

All Implemented Interfaces:

Closeable

public class SeekableFileInputStream
extends SeekableInputStream

Wraps a RandomAccessFile in a SeekableInputStream.

Field Summary

protected RandomAccessFile

randomAccessFile The RandomAccessFile that has been wrapped into a SeekableFileInputStream.

Constructor Summary

SeekableFileInputStream(File file)
Creates a new seekable input stream that reads from the specified file.

SeekableFileInputStream(RandomAccessFile randomAccessFile)
Creates a new seekable input stream from an existing RandomAccessFile object.

SeekableFileInputStream(String name)
Creates a new seekable input stream that reads from a file with the specified name.

Method Summary

void	close() Calls randomAccessFile.close().
long	length() Calls randomAccessFile.length().
long	position() Calls randomAccessFile.getFilePointer().
int	read() Calls randomAccessFile.read().
int	read(byte[] buf) Calls randomAccessFile.read(buf).
int	read(byte[] buf, int off, int len) Calls randomAccessFile.read(buf, off, len).
void	seek(long pos) Calls randomAccessFile.seek(long).

Methods inherited from class org.tukaani.xz.SeekableInputStream

skip

Methods inherited from class java.io.InputStream

available, mark, markSupported, reset

Methods inherited from class java.lang.Object

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

Field Detail

randomAccessFile

protected RandomAccessFile randomAccessFile

The RandomAccessFile that has been wrapped into a SeekableFileInputStream.

Constructor Detail

SeekableFileInputStream

public SeekableFileInputStream(File file)
                        throws FileNotFoundException

Creates a new seekable input stream that reads from the specified file.

Throws:

FileNotFoundException

SeekableFileInputStream

public SeekableFileInputStream(String name)
                        throws FileNotFoundException

Creates a new seekable input stream that reads from a file with the specified name.

Throws:

FileNotFoundException

SeekableFileInputStream

public SeekableFileInputStream(RandomAccessFile randomAccessFile)

Creates a new seekable input stream from an existing RandomAccessFile object.

Method Detail

read

public int read()
         throws IOException

Calls randomAccessFile.read().

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] buf)
         throws IOException

Calls randomAccessFile.read(buf).

Overrides:

read in class InputStream

Throws:

IOException

read

public int read(byte[] buf,
                int off,
                int len)
         throws IOException

Calls randomAccessFile.read(buf, off, len).

Overrides:

read in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Calls randomAccessFile.close().

Specified by:

close in interface Closeable

Overrides:

close in class InputStream

Throws:

IOException

length

public long length()
            throws IOException

Calls randomAccessFile.length().

Specified by:

length in class SeekableInputStream

Throws:

IOException

position

public long position()
              throws IOException

Calls randomAccessFile.getFilePointer().

Specified by:

position in class SeekableInputStream

Throws:

IOException

seek

public void seek(long pos)
          throws IOException

Calls randomAccessFile.seek(long).

Specified by:

seek in class SeekableInputStream

Parameters:

pos - new read position in the stream

Throws:

IOException - if pos is negative or if a stream-specific I/O error occurs