Package com.day.cq.dam.commons.handler

Class AbstractFilter

java.lang.Object

com.day.cq.dam.commons.handler.AbstractFilter

All Implemented Interfaces:

Filter

Direct Known Subclasses:

XPacketFilter

public abstract class AbstractFilter
extends Object
implements Filter

Continuously filter bytes and produce an output that can be read back. Optionally pass processed bytes to a next filter.

Method Summary

Modifier and Type	Method	Description
final void	filter(byte[] buf, int off, int len)	Filter a couple of bytes.
boolean	isValid()	Return a flag indicating whether the contents processed by this filter represents a valid entity.
final void	reset()	Reset the filter.
void	setAutoReset(boolean autoReset)	Set the flag indicating whether the filter automatically resets its internal state when the end marker has been read.
void	setFilterStateListener(FilterStateListener listener)	Set a filter state listener.

Methods inherited from class java.lang.Object

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

Method Details

setFilterStateListener

public void setFilterStateListener(FilterStateListener listener)

Set a filter state listener.

Parameters:

listener - listener

filter

public final void filter(byte[] buf,
 int off,
 int len)
                  throws IOException

Filter a couple of bytes.

Specified by:

filter in interface Filter

Parameters:

buf - buffer

off - offset inside buffer

len - number of bytes

Throws:

IOException

reset

public final void reset()

Reset the filter.

Specified by:

reset in interface Filter

setAutoReset

public void setAutoReset(boolean autoReset)

Set the flag indicating whether the filter automatically resets its internal state when the end marker has been read.

Specified by:

setAutoReset in interface Filter

Parameters:

autoReset - autoReset

isValid

public boolean isValid()

Return a flag indicating whether the contents processed by this filter represents a valid entity. This implementation returns true.

Specified by:

isValid in interface Filter

Returns:

true if the contents is valid; false otherwise.