org.apache.avalon.excalibur.monitor
Class ActiveMonitor

java.lang.Object
  org.apache.avalon.excalibur.monitor.impl.AbstractMonitor
      org.apache.avalon.excalibur.monitor.impl.ActiveMonitor
          org.apache.avalon.excalibur.monitor.ActiveMonitor

All Implemented Interfaces:

Component, Configurable, LogEnabled, Monitor, java.lang.Runnable, Startable, ThreadSafe

public class ActiveMonitor

extends ActiveMonitor

implements LogEnabled, Configurable, Startable, ThreadSafe

The ActiveMonitor is used to actively check a set of resources to see if they have changed. It will be implemented as a Component, that can be retrieved from the ComponentLocator. It defaults to checking every 1 minute. The configuration looks like this:

   <active-monitor>
     <thread priority="5" frequency="60000"/>
     <init-resources>
       <-- This entry can be repeated for every resource you want to register immediately -->

       <resource key="file:./myfile.html" class="org.apache.avalon.excalibur.monitor.FileResource"/>
     </init-resources>
   </active-monitor>
 

Version:

$Id: ActiveMonitor.java,v 1.4 2004/02/28 11:47:32 cziegeler Exp $

Author:

Avalon Development Team

Field Summary

Fields inherited from interface org.apache.avalon.excalibur.monitor.Monitor

ROLE

Constructor Summary

ActiveMonitor()

Method Summary

void	configure(Configuration config) Configure the ActiveMonitor.
void	enableLogging(Logger logger) Provide component with a logger.

Methods inherited from class org.apache.avalon.excalibur.monitor.impl.ActiveMonitor

run, setFrequency, setPriority, start, stop

Methods inherited from class org.apache.avalon.excalibur.monitor.impl.AbstractMonitor

addResource, addResources, getResource, getResources, removeResource, removeResource, scanAllResources

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.avalon.framework.activity.Startable

start, stop

Constructor Detail

ActiveMonitor

public ActiveMonitor()

Method Detail

enableLogging

public void enableLogging(Logger logger)

Description copied from interface: LogEnabled

Provide component with a logger.

Specified by:

enableLogging in interface LogEnabled

Parameters:

logger - the logger. Must not be null.

configure

public final void configure(Configuration config)
                     throws ConfigurationException

Configure the ActiveMonitor.

Specified by:

configure in interface Configurable

Parameters:

config - the class configurations. Must not be null.

Throws:

ConfigurationException - if an error occurs