wyvern.kernel.commands.filters
Class GrepFilter

java.lang.Object
  wyvern.kernel.commands.filters.GrepFilter

All Implemented Interfaces:

CommandFilter

public class GrepFilter

extends java.lang.Object

implements CommandFilter

Matches lines against a particular string, and discards lines that don't match the string.

Version:

1.0, Jun 13, 2003

Author:

Steve Yegge

Constructor Summary

GrepFilter()

Method Summary

java.util.ArrayList	filter(java.util.ArrayList lines) Filters the lines.
void	parseArguments(java.lang.String verb, java.lang.String args) Parses the arguments to "grep".
java.lang.String	toString() Returns String representation of this filter.

Methods inherited from class java.lang.Object

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

Constructor Detail

GrepFilter

public GrepFilter()

Method Detail

parseArguments

public void parseArguments(java.lang.String verb,
                           java.lang.String args)

Parses the arguments to "grep".

Specified by:

parseArguments in interface CommandFilter

Parameters:

verb - the command verb (e.g. "grep").

args - the argument string passed to the command, not including the command verb. Null if no arguments were passed to the filter.

filter

public java.util.ArrayList filter(java.util.ArrayList lines)

Filters the lines.

Specified by:

filter in interface CommandFilter

Parameters:

lines - the event output, broken into lines.

Returns:

a subset of the lines, matched against the argument string.

toString

public java.lang.String toString()

Returns String representation of this filter.