org.apache.jackrabbit.core.data

Class LazyFileInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

org.apache.commons.io.input.ProxyInputStream

org.apache.commons.io.input.AutoCloseInputStream

org.apache.jackrabbit.core.data.LazyFileInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class LazyFileInputStream
extends AutoCloseInputStream

This input stream delays opening the file until the first byte is read, and closes and discards the underlying stream as soon as the end of input has been reached or when the stream is explicitly closed.

Constructor Summary

Constructors

Constructor and Description
LazyFileInputStream(File file) Creates a new LazyFileInputStream for the given file.
LazyFileInputStream(FileDescriptor fd) Creates a new LazyFileInputStream for the given file descriptor.
LazyFileInputStream(String name) Creates a new LazyFileInputStream for the given file.

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()
long	skip(long n)

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyFileInputStream

public LazyFileInputStream(File file)
                    throws FileNotFoundException

Creates a new LazyFileInputStream for the given file. If the file is unreadable, a FileNotFoundException is thrown. The file is not opened until the first byte is read from the stream.

Parameters:

file - the file

Throws:

FileNotFoundException

LazyFileInputStream

public LazyFileInputStream(FileDescriptor fd)

Creates a new LazyFileInputStream for the given file descriptor. The file is not opened until the first byte is read from the stream.

Parameters:

fd -

LazyFileInputStream

public LazyFileInputStream(String name)
                    throws FileNotFoundException

Creates a new LazyFileInputStream for the given file. If the file is unreadable, a FileNotFoundException is thrown.

Parameters:

name -

Throws:

FileNotFoundException

Method Detail

read

public int read()
         throws IOException

Overrides:

read in class ProxyInputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class ProxyInputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class AutoCloseInputStream

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class ProxyInputStream

Throws:

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class ProxyInputStream

mark

public void mark(int readlimit)

Overrides:

mark in class ProxyInputStream

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class ProxyInputStream

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Overrides:

read in class ProxyInputStream

Throws:

IOException

read

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

Overrides:

read in class ProxyInputStream

Throws:

IOException