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

Introduction

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

Prototype

public static CacheBuilder<Object, Object> newBuilder()

Source Link

Document

Constructs a new CacheBuilder instance with default settings, including strong keys, strong values, and no automatic eviction of any kind.

Usage

From source file:org.seedstack.shed.GuavaCache.java

private GuavaCache(CacheParameters<K, V> cacheParameters) {
    final Function<? super K, ? extends V> loadingFunction = cacheParameters.getLoadingFunction();
    cache = CacheBuilder.newBuilder().initialCapacity(cacheParameters.getInitialSize())
            .maximumSize(cacheParameters.getMaxSize()).build(new CacheLoader<K, V>() {
                @Override/*from www  .  j av  a  2 s . c  o  m*/
                public V load(K key) throws Exception {
                    return loadingFunction.apply(key);
                }
            });
}

From source file:com.streamsets.pipeline.stage.processor.kv.LookupUtils.java

private static CacheBuilder createBuilder(CacheConfig conf) {
    CacheBuilder cacheBuilder = CacheBuilder.newBuilder();

    if (!conf.enabled) {
        // If cache is disabled, simply set size to zero
        conf.maxSize = 0;//from w w w  .ja  v  a  2s .c  om
    } else if (conf.maxSize == -1) {
        conf.maxSize = Long.MAX_VALUE;
    }

    // recordStats is available only in Guava 12.0 and above, but
    // CDH still uses guava 11.0. Hence the reflection.
    if (LOG.isDebugEnabled()) {
        try {
            Method m = CacheBuilder.class.getMethod("recordStats");
            if (m != null) {
                m.invoke(cacheBuilder);
            }
        } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
            // We're intentionally ignoring any reflection errors as we might be running
            // with old guava on class path.
        }
    }

    // CacheBuilder doesn't support specifying type thus suffers from erasure, so
    // we build it with this if / else logic.
    if (conf.evictionPolicyType == EvictionPolicyType.EXPIRE_AFTER_ACCESS) {
        cacheBuilder.maximumSize(conf.maxSize).expireAfterAccess(conf.expirationTime, conf.timeUnit);
    } else if (conf.evictionPolicyType == EvictionPolicyType.EXPIRE_AFTER_WRITE) {
        cacheBuilder.maximumSize(conf.maxSize).expireAfterWrite(conf.expirationTime, conf.timeUnit);
    } else {
        throw new IllegalArgumentException(
                Utils.format("Unrecognized EvictionPolicyType: '{}'", conf.evictionPolicyType));
    }

    return cacheBuilder;
}

From source file:org.magnum.soda.svc.SessionData.java

private static Cache<String, SessionData> createCache(int maxSize, int expireAfter, TimeUnit unit) {
    return CacheBuilder.newBuilder().maximumSize(maxSize).expireAfterAccess(expireAfter, unit)
            // .removalListener(MY_LISTENER)
            .build(loader_);/*from  w  w  w  . j a va 2 s. c om*/
}

From source file:com.github.benmanes.caffeine.cache.impl.GuavaCache.java

public GuavaCache(int maximumSize) {
    cache = CacheBuilder.newBuilder().concurrencyLevel(CONCURRENCY_LEVEL).initialCapacity(maximumSize)
            .maximumSize(maximumSize).build();
}

From source file:org.glowroot.central.util.RateLimiter.java

public RateLimiter(int maximumSize, boolean recordStats) {
    CacheBuilder<Object, Object> cache = CacheBuilder.newBuilder().expireAfterWrite(1, DAYS);
    if (maximumSize != NO_MAXIMUM_SIZE) {
        cache.maximumSize(maximumSize);// w ww  .ja  v a2s  . c  om
    }
    if (recordStats) {
        cache.recordStats();
    }
    acquiredRecently = cache.build();
}

From source file:com.twitter.aurora.scheduler.stats.CachedCounters.java

@Inject
CachedCounters(final StatsProvider stats) {
    cache = CacheBuilder.newBuilder().build(new CacheLoader<String, AtomicLong>() {
        @Override/*from w w  w  .j  a  va2s. c om*/
        public AtomicLong load(String key) {
            return stats.makeCounter(key);
        }
    });
}

From source file:com.googlecode.webutilities.common.cache.impl.GoogleCache.java

public GoogleCache(CacheConfig<K, V> cacheConfig) {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().softValues();
    // if(reloadAfterAccess > 0)
    //     builder.expireAfterAccess(reloadAfterAccess, TimeUnit.SECONDS);
    if (cacheConfig.getReloadTime() > 0)
        builder.expireAfterWrite(cacheConfig.getReloadTime(), TimeUnit.SECONDS);
    googleCache = builder.build();//from  w w w .  ja  va2 s.  c o  m
}

From source file:org.grouplens.lenskit.eval.traintest.CachingDAOProvider.java

private static void registerProviderClass(Class<?> cls) {
    Cache<EventDAO, Object> cache = CACHE_MAP.get(cls);
    if (cache == null) {
        cache = CacheBuilder.newBuilder().weakKeys().softValues().build();
        CACHE_MAP.putIfAbsent(cls, cache);
    }/*from w w w. j a  v a2  s  .c o  m*/
}

From source file:com.cloudera.nav.plugin.client.writer.registry.AbstractRegistryFactory.java

public LoadingCache<Class<?>, Collection<T>> newRegistry() {
    return CacheBuilder.newBuilder().maximumSize(MAX_CACHE_SIZE)
            .build(new CacheLoader<Class<?>, Collection<T>>() {
                @Override// w  w w  .  j a  v a2 s  .  c  o  m
                public Collection<T> load(Class<?> aClass) throws Exception {
                    return parseMClass(aClass);
                }
            });
}

From source file:org.apache.hadoop.hdfs.server.datanode.web.webhdfs.DataNodeUGIProvider.java

public static synchronized void init(Configuration conf) {
    if (ugiCache == null) {
        ugiCache = CacheBuilder.newBuilder()
                .expireAfterAccess(// w  w  w.  j  a  v  a 2s . c  om
                        conf.getInt(DFSConfigKeys.DFS_WEBHDFS_UGI_EXPIRE_AFTER_ACCESS_KEY,
                                DFSConfigKeys.DFS_WEBHDFS_UGI_EXPIRE_AFTER_ACCESS_DEFAULT),
                        TimeUnit.MILLISECONDS)
                .build();
    }
}