package org.infinispan.eviction;
import org.infinispan.commons.util.Util;
import org.infinispan.commons.CacheConfigurationException;
import org.infinispan.configuration.cache.Configuration;
import org.infinispan.container.DataContainer;
import org.infinispan.container.entries.InternalCacheEntry;
import org.infinispan.context.impl.ImmutableContext;
import org.infinispan.factories.annotations.Inject;
import org.infinispan.factories.annotations.Start;
import org.infinispan.factories.annotations.Stop;
import org.infinispan.loaders.CacheLoaderException;
import org.infinispan.loaders.manager.CacheLoaderManager;
import org.infinispan.loaders.spi.CacheStore;
import org.infinispan.notifications.cachelistener.CacheNotifier;
import org.infinispan.util.TimeService;
import org.infinispan.util.logging.Log;
import org.infinispan.util.logging.LogFactory;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
public class PassivationManagerImpl implements PassivationManager {
CacheLoaderManager cacheLoaderManager;
CacheNotifier notifier;
CacheStore cacheStore;
Configuration cfg;
boolean statsEnabled = false;
boolean enabled = false;
private static final Log log = LogFactory.getLog(PassivationManagerImpl.class);
private final AtomicLong passivations = new AtomicLong(0);
private DataContainer container;
private TimeService timeService;
private static final boolean trace = log.isTraceEnabled();
@Inject
public void inject(CacheLoaderManager cacheLoaderManager, CacheNotifier notifier, Configuration cfg, DataContainer container,
TimeService timeService) {
this.cacheLoaderManager = cacheLoaderManager;
this.notifier = notifier;
this.cfg = cfg;
this.container = container;
this.timeService = timeService;
}
@Start(priority = 12)
public void start() {
enabled = cacheLoaderManager.isUsingPassivation();
if (enabled) {
cacheStore = cacheLoaderManager == null ? null : cacheLoaderManager.getCacheStore();
if (cacheStore == null) {
throw new CacheConfigurationException("passivation can only be used with a CacheLoader that implements CacheStore!");
}
enabled = cacheLoaderManager.isEnabled() && cacheLoaderManager.isUsingPassivation();
statsEnabled = cfg.jmxStatistics().enabled();
}
}
@Override
public boolean isEnabled() {
return enabled;
}
@Override
public void passivate(InternalCacheEntry entry) {
if (enabled && entry != null) {
Object key = entry.getKey();
// notify listeners that this entry is about to be passivated
notifier.notifyCacheEntryPassivated(key, entry.getValue(), true,
ImmutableContext.INSTANCE, null);
if (trace) log.tracef("Passivating entry %s", key);
try {
cacheStore.store(entry);
if (statsEnabled) passivations.getAndIncrement();
} catch (CacheLoaderException e) {
log.unableToPassivateEntry(key, e);
}
notifier.notifyCacheEntryPassivated(key, null, false,
ImmutableContext.INSTANCE, null);
}
}
@Override
@Stop(priority = 9)
public void passivateAll() throws CacheLoaderException {
if (enabled) {
long start = timeService.time();
log.passivatingAllEntries();
for (InternalCacheEntry e : container) {
if (trace) log.tracef("Passivating %s", e.getKey());
cacheStore.store(e);
}
log.passivatedEntries(container.size(),
Util.prettyPrintTime(timeService.timeDuration(start, TimeUnit.MILLISECONDS)));
}
}
@Override
public long getPassivationCount() {
return passivations.get();
}
@Override
public void resetPassivationCount() {
passivations.set(0L);
}
}