package org.infinispan.demo.carmart.session;
import java.util.logging.Logger;
import javax.annotation.PreDestroy;
import javax.enterprise.context.ApplicationScoped;
import org.infinispan.configuration.cache.CacheMode;
import org.infinispan.configuration.cache.Configuration;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.configuration.global.GlobalConfiguration;
import org.infinispan.configuration.global.GlobalConfigurationBuilder;
import org.infinispan.demo.carmart.session.CacheContainerProvider;
import org.infinispan.eviction.EvictionStrategy;
import org.infinispan.manager.DefaultCacheManager;
import org.infinispan.manager.EmbeddedCacheManager;
import org.infinispan.transaction.LockingMode;
import org.infinispan.transaction.TransactionMode;
import org.infinispan.transaction.lookup.GenericTransactionManagerLookup;
import org.infinispan.util.concurrent.IsolationLevel;
/**
* {@link CacheContainerProvider}'s implementation creating a DefaultCacheManager
* which is configured programmatically. Infinispan's libraries need to be bundled
* with the application - this is called "library" mode.
*
* The only difference against TomcatCacheContainerProvider is the transaction
* manager lookup class.
*
*
*/
@ApplicationScoped
public class JBossASCacheContainerProvider implements CacheContainerProvider {
private Logger log = Logger.getLogger(this.getClass().getName());
private EmbeddedCacheManager manager;
public EmbeddedCacheManager getCacheContainer() {
if (manager == null) {
GlobalConfiguration glob = new GlobalConfigurationBuilder()
.nonClusteredDefault() //Helper method that gets you a default constructed GlobalConfiguration, preconfigured for use in LOCAL mode
.globalJmxStatistics().enable() //This method allows enables the jmx statistics of the global configuration.
.jmxDomain("org.infinispan.demo.carmart.tx") //prevent collision with non-transactional carmart
.build(); //Builds the GlobalConfiguration object
Configuration loc = new ConfigurationBuilder()
.jmxStatistics().enable() //Enable JMX statistics
.clustering().cacheMode(CacheMode.LOCAL) //Set Cache mode to LOCAL - Data is not replicated.
.transaction().transactionMode(TransactionMode.TRANSACTIONAL).autoCommit(false) //Enable Transactional mode with autocommit false
.lockingMode(LockingMode.OPTIMISTIC).transactionManagerLookup(new GenericTransactionManagerLookup()) //uses GenericTransactionManagerLookup - This is a lookup class that locate transaction managers in the most popular Java EE application servers. If no transaction manager can be found, it defaults on the dummy transaction manager.
.locking().isolationLevel(IsolationLevel.REPEATABLE_READ) //Sets the isolation level of locking
.eviction().maxEntries(100).strategy(EvictionStrategy.LIRS) //Sets 4 as maximum number of entries in a cache instance and uses the LIRS strategy - an efficient low inter-reference recency set replacement policy to improve buffer cache performance
.loaders().passivation(false).addFileCacheStore().purgeOnStartup(true) //Disable passivation and adds a FileCacheStore that is purged on Startup
.build(); //Builds the Configuration object
manager = new DefaultCacheManager(glob, loc, true);
log.info("=== Using DefaultCacheManager (library mode) ===");
}
return manager;
}
@PreDestroy
public void cleanUp() {
manager.stop();
manager = null;
}
}