Class AbstractWatcher

java.lang.Object

org.apache.logging.log4j.core.util.AbstractWatcher

All Implemented Interfaces:

Watcher

Direct Known Subclasses:

ConfigurationFileWatcher, HttpWatcher, WrappedFileWatcher

public abstract class AbstractWatcher
extends Object
implements Watcher

Watcher for configuration files. Causes a reconfiguration when a file changes.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AbstractWatcher.ReconfigurationRunnable	Helper class for triggering a reconfiguration in a background thread.

Field Summary

Fields

Modifier and Type	Field	Description
private final Configuration	configuration
private final List<ConfigurationListener>	configurationListeners
private final Reconfigurable	reconfigurable
private Source	source
private final Log4jThreadFactory	threadFactory

Fields inherited from interface Watcher

CATEGORY, ELEMENT_TYPE

Constructor Summary

Constructors

Constructor	Description
AbstractWatcher(Configuration configuration, Reconfigurable reconfigurable, List<ConfigurationListener> configurationListeners)

Method Summary

Modifier and Type	Method	Description
Configuration	getConfiguration()
abstract long	getLastModified()	Returns the time the source was last modified or 0 if it is not available.
List<ConfigurationListener>	getListeners()	Returns the list of listeners for this configuration.
Source	getSource()	Returns the Source being monitored.
abstract boolean	isModified()	Periodically called to determine if the configuration has been modified.
void	modified()	Called when the configuration has been modified.
void	watching(Source source)	Called when the Watcher is registered.

Methods inherited from class Object

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

Methods inherited from interface Watcher

newWatcher

Field Details

reconfigurable

private final Reconfigurable reconfigurable

configurationListeners

private final List<ConfigurationListener> configurationListeners

threadFactory

private final Log4jThreadFactory threadFactory

configuration

private final Configuration configuration

source

private Source source

Constructor Details

AbstractWatcher

public AbstractWatcher(Configuration configuration,
 Reconfigurable reconfigurable,
 List<ConfigurationListener> configurationListeners)

Method Details

getListeners

public List<ConfigurationListener> getListeners()

Description copied from interface: Watcher

Returns the list of listeners for this configuration.

Specified by:

getListeners in interface Watcher

Returns:

The list of listeners.

modified

public void modified()

Description copied from interface: Watcher

Called when the configuration has been modified.

Specified by:

modified in interface Watcher

getConfiguration

public Configuration getConfiguration()

getLastModified

public abstract long getLastModified()

Description copied from interface: Watcher

Returns the time the source was last modified or 0 if it is not available.

Specified by:

getLastModified in interface Watcher

Returns:

the time the source was last modified.

isModified

public abstract boolean isModified()

Description copied from interface: Watcher

Periodically called to determine if the configuration has been modified.

Specified by:

isModified in interface Watcher

Returns:

true if the configuration was modified, false otherwise.

watching

public void watching(Source source)

Description copied from interface: Watcher

Called when the Watcher is registered.

Specified by:

watching in interface Watcher

Parameters:

source - the Source that is being watched.

getSource

public Source getSource()

Description copied from interface: Watcher

Returns the Source being monitored.

Specified by:

getSource in interface Watcher

Returns:

the Source.