org.lsst.ccs.gconsole.plugins.tracer

Interface MessageFilter

All Known Implementing Classes:

MessageClassSelector, MultistepFilter, StandardConfigurableFilter, StandardFormatter

public interface MessageFilter

Interface to be implemented by tracer filters. Applying this filter to a message may modify the message, in addition to accepting or rejecting it. Implementations should be immutable, may be used for processing multiple messages concurrently.

Author:

onoprien

Method Summary

Modifier and Type	Method and Description
FilteredMessage	apply(FilteredMessage filteredMessage) Applies this filter to the given message.

Method Detail

apply

FilteredMessage apply(FilteredMessage filteredMessage)

Applies this filter to the given message.

Parameters:

filteredMessage - The message to be filtered.

Returns:

The (possibly modified) message if it passes the filter; null otherwise.