package org.infinispan.factories;
import org.infinispan.commons.equivalence.AnyEquivalence;
import org.infinispan.commons.equivalence.Equivalence;
import org.infinispan.commons.CacheConfigurationException;
import org.infinispan.container.DataContainer;
import org.infinispan.container.DefaultDataContainer;
import org.infinispan.eviction.EvictionStrategy;
import org.infinispan.eviction.EvictionThreadPolicy;
import org.infinispan.factories.annotations.DefaultFactoryFor;
/**
* Constructs the data container
*
* @author Manik Surtani (<a href="mailto:manik@jboss.org">manik@jboss.org</a>)
* @author Vladimir Blagojevic
* @since 4.0
*/
@DefaultFactoryFor(classes = DataContainer.class)
public class DataContainerFactory extends AbstractNamedCacheComponentFactory implements
AutoInstantiableFactory {
@Override
@SuppressWarnings("unchecked")
public <T> T construct(Class<T> componentType) {
if (configuration.dataContainer().dataContainer() != null) {
return (T) configuration.dataContainer().dataContainer();
} else {
EvictionStrategy st = configuration.eviction().strategy();
int level = configuration.locking().concurrencyLevel();
Equivalence keyEquivalence = configuration.dataContainer().keyEquivalence();
Equivalence valueEquivalence = configuration.dataContainer().valueEquivalence();
switch (st) {
case NONE:
return (T) DefaultDataContainer.unBoundedDataContainer(
level, keyEquivalence, valueEquivalence);
case UNORDERED:
case LRU:
case FIFO:
case LIRS:
int maxEntries = configuration.eviction().maxEntries();
//handle case when < 0 value signifies unbounded container
if(maxEntries < 0) {
return (T) DefaultDataContainer.unBoundedDataContainer(
level, keyEquivalence, valueEquivalence);
}
EvictionThreadPolicy policy = configuration.eviction().threadPolicy();
return (T) DefaultDataContainer.boundedDataContainer(
level, maxEntries, st, policy, keyEquivalence, valueEquivalence);
default:
throw new CacheConfigurationException("Unknown eviction strategy "
+ configuration.eviction().strategy());
}
}
}
}