Class CertificateWatcher

java.lang.Object

com.loomcache.common.config.CertificateWatcher

All Implemented Interfaces:

AutoCloseable

public class CertificateWatcher
extends Object
implements AutoCloseable

Watches keystore and truststore files for modifications using Java NIO WatchService.

Detects file changes and triggers certificate reload callbacks. Handles errors gracefully without crashing the server. Debounces rapid changes to avoid duplicate reloads.

Constructor Summary

Constructors

Constructor	Description
CertificateWatcher(@Nullable Path keystorePath, @Nullable Path truststorePath, long debounceMs, Runnable onCertificateChange)	Create a certificate watcher.

Method Summary

Modifier and Type	Method	Description
void	close()	Stop watching and clean up resources.
boolean	isRunning()	Check if the watcher is currently running.
void	start()	Start watching certificate files for changes.

Methods inherited from class Object

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

Constructor Details

CertificateWatcher

public CertificateWatcher(@Nullable Path keystorePath,
 @Nullable Path truststorePath,
 long debounceMs,
 Runnable onCertificateChange)
                   throws IOException

Create a certificate watcher.

Parameters:

keystorePath - path to keystore file (may be null if not used)

truststorePath - path to truststore file (may be null if not used)

debounceMs - milliseconds to wait after last file change before reloading

onCertificateChange - callback to invoke when certs change (called from watch thread)

Throws:

IOException - if WatchService cannot be created

Method Details

start

public void start()

Start watching certificate files for changes. Non-blocking — returns immediately after registering watches and starting the scheduler.

close

public void close()

Stop watching and clean up resources.

Specified by:

close in interface AutoCloseable

isRunning

public boolean isRunning()

Check if the watcher is currently running.