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| package com.opensymphony.oscache.plugins.clustersupport; |
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| import com.opensymphony.oscache.base.*; |
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| import com.opensymphony.oscache.base.events.*; |
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| import org.apache.commons.logging.Log; |
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| import org.apache.commons.logging.LogFactory; |
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| import java.util.Date; |
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| public abstract class AbstractBroadcastingListener implements CacheEntryEventListener, LifecycleAware { |
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| private final static Log log = LogFactory.getLog(AbstractBroadcastingListener.class); |
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| protected static final String CLUSTER_ORIGIN = "CLUSTER"; |
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| protected Cache cache = null; |
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| public AbstractBroadcastingListener() {
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| if (log.isInfoEnabled()) {
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| log.info("AbstractBroadcastingListener registered");
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| } |
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| } |
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| public void cacheEntryFlushed(CacheEntryEvent event) {
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| if (!Cache.NESTED_EVENT.equals(event.getOrigin()) && !CLUSTER_ORIGIN.equals(event.getOrigin())) {
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| if (log.isDebugEnabled()) {
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| log.debug("cacheEntryFlushed called (" + event + ")");
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| } |
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| sendNotification(new ClusterNotification(ClusterNotification.FLUSH_KEY, event.getKey()));
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| } |
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| } |
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| public void cacheGroupFlushed(CacheGroupEvent event) {
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| if (!Cache.NESTED_EVENT.equals(event.getOrigin()) && !CLUSTER_ORIGIN.equals(event.getOrigin())) {
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| if (log.isDebugEnabled()) {
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| log.debug("cacheGroupFushed called (" + event + ")");
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| } |
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| sendNotification(new ClusterNotification(ClusterNotification.FLUSH_GROUP, event.getGroup()));
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| } |
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| } |
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| public void cachePatternFlushed(CachePatternEvent event) {
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| if (!Cache.NESTED_EVENT.equals(event.getOrigin()) && !CLUSTER_ORIGIN.equals(event.getOrigin())) {
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| if (log.isDebugEnabled()) {
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| log.debug("cachePatternFushed called (" + event + ")");
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| } |
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| sendNotification(new ClusterNotification(ClusterNotification.FLUSH_PATTERN, event.getPattern()));
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| } |
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| } |
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| public void cacheFlushed(CachewideEvent event) {
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| if (!Cache.NESTED_EVENT.equals(event.getOrigin()) && !CLUSTER_ORIGIN.equals(event.getOrigin())) {
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| if (log.isDebugEnabled()) {
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| log.debug("cacheFushed called (" + event + ")");
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| } |
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| sendNotification(new ClusterNotification(ClusterNotification.FLUSH_CACHE, event.getDate()));
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| } |
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| } |
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| public void cacheEntryAdded(CacheEntryEvent event) {
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| } |
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| public void cacheEntryRemoved(CacheEntryEvent event) {
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| } |
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| public void cacheEntryUpdated(CacheEntryEvent event) {
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| } |
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| public void cacheGroupAdded(CacheGroupEvent event) {
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| } |
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| public void cacheGroupEntryAdded(CacheGroupEvent event) {
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| } |
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| public void cacheGroupEntryRemoved(CacheGroupEvent event) {
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| } |
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| public void cacheGroupRemoved(CacheGroupEvent event) {
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| } |
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| public void cacheGroupUpdated(CacheGroupEvent event) {
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| } |
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| public void initialize(Cache cache, Config config) throws InitializationException {
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| this.cache = cache;
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| } |
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| public void handleClusterNotification(ClusterNotification message) {
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| if (cache == null) {
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| log.warn("A cluster notification (" + message + ") was received, but no cache is registered on this machine. Notification ignored.");
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| return;
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| } |
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| if (log.isInfoEnabled()) {
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| log.info("Cluster notification (" + message + ") was received.");
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| } |
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| switch (message.getType()) {
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| case ClusterNotification.FLUSH_KEY:
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| cache.flushEntry((String) message.getData(), CLUSTER_ORIGIN);
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| break;
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| case ClusterNotification.FLUSH_GROUP:
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| cache.flushGroup((String) message.getData(), CLUSTER_ORIGIN);
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| break;
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| case ClusterNotification.FLUSH_PATTERN:
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| cache.flushPattern((String) message.getData(), CLUSTER_ORIGIN);
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| break;
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| case ClusterNotification.FLUSH_CACHE:
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| cache.flushAll((Date) message.getData(), CLUSTER_ORIGIN);
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| break;
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| default:
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| log.error("The cluster notification (" + message + ") is of an unknown type. Notification ignored.");
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| } |
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| } |
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| abstract protected void sendNotification(ClusterNotification message); |
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| } |