org.w3c.jigsaw.ssi
Class DelayedInputStream

java.lang.Object
  java.io.InputStream
      org.w3c.jigsaw.ssi.DelayedInputStream

All Implemented Interfaces:

java.io.Closeable

public abstract class DelayedInputStream
extends java.io.InputStream

Used to delay the (perhaps expensive) creation of a real stream until the first access.

Field Summary

protected java.io.InputStream

in The InputStream that data will be really read from.

Constructor Summary

DelayedInputStream()

Method Summary

int	available()
void	close()
protected abstract void	init() This method is called on the first access to the stream.
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

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

Field Detail

in

protected java.io.InputStream in

The InputStream that data will be really read from.

Constructor Detail

DelayedInputStream

public DelayedInputStream()

Method Detail

init

protected abstract void init()

This method is called on the first access to the stream. (Not at construction time.) Should initialize in as a valid stream. Must not make it null.

close

public final void close()
                 throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException

read

public final int read()
               throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

public final int read(byte[] b,
                      int off,
                      int len)
               throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

read

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

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

reset

public final void reset()
                 throws java.io.IOException

Overrides:

reset in class java.io.InputStream

Throws:

java.io.IOException

mark

public final void mark(int readlimit)

Overrides:

mark in class java.io.InputStream

markSupported

public final boolean markSupported()

Overrides:

markSupported in class java.io.InputStream

skip

public final long skip(long n)
                throws java.io.IOException

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException

available

public final int available()
                    throws java.io.IOException

Overrides:

available in class java.io.InputStream

Throws:

java.io.IOException