Example usage for com.google.common.cache CacheBuilder recordStats

Introduction

In this page you can find the example usage for com.google.common.cache CacheBuilder recordStats.

Prototype

public CacheBuilder<K, V> recordStats()

Source Link

Document

Enable the accumulation of CacheStats during the operation of the cache.

Usage

From source file:ca.exprofesso.guava.jcache.GuavaCache.java

public GuavaCache(String cacheName, CompleteConfiguration<K, V> configuration, CacheManager cacheManager) {
    this.cacheName = cacheName;
    this.configuration = configuration;
    this.cacheManager = cacheManager;

    String properties = cacheManager.getProperties().toString();

    CacheBuilderSpec cacheBuilderSpec = CacheBuilderSpec
            .parse(properties.substring(1, properties.length() - 1));

    CacheBuilder cacheBuilder = CacheBuilder.from(cacheBuilderSpec);

    ExpiryPolicy expiryPolicy = configuration.getExpiryPolicyFactory().create();

    if (expiryPolicy instanceof ModifiedExpiryPolicy) // == Guava expire after write
    {/*www .j ava  2s.c o m*/
        Duration d = expiryPolicy.getExpiryForUpdate();

        cacheBuilder.expireAfterWrite(d.getDurationAmount(), d.getTimeUnit());
    } else if (expiryPolicy instanceof TouchedExpiryPolicy) // == Guava expire after access
    {
        Duration d = expiryPolicy.getExpiryForAccess();

        cacheBuilder.expireAfterAccess(d.getDurationAmount(), d.getTimeUnit());
    }

    this.cacheEntryListenerConfigurations = Sets
            .newHashSet(configuration.getCacheEntryListenerConfigurations());

    if (!this.cacheEntryListenerConfigurations.isEmpty()) {
        cacheBuilder = cacheBuilder.removalListener(this);
    }

    if (configuration.isManagementEnabled()) {
        GuavaCacheMXBean bean = new GuavaCacheMXBean(this);

        try {
            ManagementFactory.getPlatformMBeanServer().registerMBean(bean,
                    new ObjectName(bean.getObjectName()));
        } catch (OperationsException | MBeanException e) {
            throw new CacheException(e);
        }
    }

    if (configuration.isStatisticsEnabled()) {
        GuavaCacheStatisticsMXBean bean = new GuavaCacheStatisticsMXBean(this);

        try {
            ManagementFactory.getPlatformMBeanServer().registerMBean(bean,
                    new ObjectName(bean.getObjectName()));
        } catch (OperationsException | MBeanException e) {
            throw new CacheException(e);
        }

        cacheBuilder.recordStats();
    }

    if (configuration.isReadThrough()) {
        Factory<CacheLoader<K, V>> factory = configuration.getCacheLoaderFactory();

        this.cache = (Cache<K, V>) cacheBuilder.build(new GuavaCacheLoader<>(factory.create()));
    } else {
        this.cache = (Cache<K, V>) cacheBuilder.build();
    }

    this.view = cache.asMap();
}