com.thetransactioncompany.cors.autoreconf

Class CORSConfigurationFileWatcher

java.lang.Object

com.thetransactioncompany.cors.autoreconf.CORSConfigurationFileWatcher

All Implemented Interfaces:

CORSConfigurationWatcher

public class CORSConfigurationFileWatcher
extends Object
implements CORSConfigurationWatcher

Watches a CORS filter configuration file for changes.

The file system is polled every 20 seconds. This can be overridden by setting a cors.configFilePollInterval system property to the desired value (in seconds).

Author:

Aleksey Zvolinsky

Field Summary

Fields

Modifier and Type	Field and Description
static long	DEFAULT_POLL_INTERVAL_SECONDS The default poll interval (and initial poll delay), in seconds.
static String	POLL_INTERVAL_PARAM_NAME The system property name for the configuration file poll interval, in seconds.

Constructor Summary

Constructors

Constructor and Description
CORSConfigurationFileWatcher(javax.servlet.FilterConfig filterConfig) Creates a new CORS filter configuration watcher.

Method Summary

Modifier and Type	Method and Description
long	getPollIntervalSeconds() Gets the configured poll interval.
boolean	reloadRequired() Checks if the CORS filter configuration has changed and must be reloaded.
void	reset() Resets watching.
void	start() Start watching for changes.
void	stop() Stop watching for changes.

Methods inherited from class java.lang.Object

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

Field Detail

POLL_INTERVAL_PARAM_NAME

public static final String POLL_INTERVAL_PARAM_NAME

The system property name for the configuration file poll interval, in seconds.

See Also:

Constant Field Values

DEFAULT_POLL_INTERVAL_SECONDS

public static final long DEFAULT_POLL_INTERVAL_SECONDS

The default poll interval (and initial poll delay), in seconds.

See Also:

Constant Field Values

Constructor Detail

CORSConfigurationFileWatcher

public CORSConfigurationFileWatcher(javax.servlet.FilterConfig filterConfig)

Creates a new CORS filter configuration watcher.

Parameters:

filterConfig - The filter configuration. Must not be null.

Method Detail

start

public void start()

Description copied from interface: CORSConfigurationWatcher

Start watching for changes.

Specified by:

start in interface CORSConfigurationWatcher

reloadRequired

public boolean reloadRequired()

Description copied from interface: CORSConfigurationWatcher

Checks if the CORS filter configuration has changed and must be reloaded.

Specified by:

reloadRequired in interface CORSConfigurationWatcher

Returns:

true if the CORS filter configuration must be reloaded.

stop

public void stop()

Description copied from interface: CORSConfigurationWatcher

Stop watching for changes.

Specified by:

stop in interface CORSConfigurationWatcher

reset

public void reset()

Description copied from interface: CORSConfigurationWatcher

Resets watching.

Specified by:

reset in interface CORSConfigurationWatcher

getPollIntervalSeconds

public long getPollIntervalSeconds()

Gets the configured poll interval.

Returns:

The poll interval, in seconds.