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

Introduction

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

Prototype

public <K1 extends K, V1 extends V> Cache<K1, V1> build() 

Source Link

Document

Builds a cache which does not automatically load values when keys are requested.

Usage

From source file:org.apache.hadoop.io.file.tfile.CacheManager.java

public static final Cache<String, BlockReader> buildCache(CacheBuilder builder) {
    if (singleCache != null) {
        singleCache.cleanUp();/*from w w  w . j  a v  a2s.  com*/
    }
    if (enableStats) {
        //todo: when we upgrade to a newer guava version we can use this
        // builder.recordStats();
    }
    singleCache = builder.build();
    return singleCache;
}

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From source file:ratpack.session.SessionModule.java

/**
 * A builder for an alternative cache for the default in memory store.
 * <p>/*from   w w w.  ja v a 2  s  .  c  om*/
 * This method can be used from within a custom {@link Module}.
 * <pre class="java">{@code
 * import com.google.inject.AbstractModule;
 * import ratpack.session.SessionModule;
 *
 * public class CustomSessionModule extends AbstractModule {
 *   protected void configure() {
 *     SessionModule.memoryStore(binder(), c -> c.maximumSize(100));
 *   }
 * }
 * }</pre>
 * }<p>
 * This method binds the built cache with the {@link #LOCAL_MEMORY_SESSION_CACHE_BINDING_KEY} key.
 * It also implicitly registers a {@link RemovalListener}, that releases the byte buffers as they are discarded.
 *
 * @param binder the guice binder
 * @param config the cache configuration
 */
public static void memoryStore(Binder binder, Consumer<? super CacheBuilder<AsciiString, ByteBuf>> config) {
    binder.bind(LOCAL_MEMORY_SESSION_CACHE_BINDING_KEY).toProvider(() -> {
        CacheBuilder<AsciiString, ByteBuf> cacheBuilder = Types.cast(CacheBuilder.newBuilder());
        cacheBuilder.removalListener(n -> n.getValue().release());
        config.accept(cacheBuilder);
        return cacheBuilder.build();
    }).in(Scopes.SINGLETON);
}

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From source file:com.googlecode.webutilities.filters.ResponseCacheFilter.java

private static Cache<String, CacheObject> buildCache(/*int reloadAfterAccess, */int reloadAfterWrite) {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().softValues();
    // if(reloadAfterAccess > 0)
    //     builder.expireAfterAccess(reloadAfterAccess, TimeUnit.SECONDS);
    if (reloadAfterWrite > 0)
        builder.expireAfterWrite(reloadAfterWrite, TimeUnit.SECONDS);
    return builder.build();
}

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From source file:com.sri.ai.expresso.core.DefaultSymbol.java

private static Cache<Object, Symbol> newSymbolTable() {
    CacheBuilder<Object, Object> cb = CacheBuilder.newBuilder();

    long maximumSize = ExpressoConfiguration.getGlobalSymbolTableMaximumSize();
    // Note: a maximumSize of 
    // < 0 means no size restrictions
    // = 0 means no cache
    // > 0 means maximum size of cache
    if (maximumSize >= 0L) {
        cb.maximumSize(maximumSize);//from  ww  w  .  j av a  2s  . c  o m
    }
    if (AICUtilConfiguration.isRecordCacheStatistics()) {
        cb.recordStats();
    }

    Cache<Object, Symbol> result = cb.build();

    return result;
}

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From source file:org.locationtech.geogig.storage.cache.SharedCache.java

@VisibleForTesting
static SharedCache build(int L1capacity, long maxCacheSizeBytes) {
    checkArgument(L1capacity >= 0);/* www  .  jav a  2s.  co m*/
    checkArgument(maxCacheSizeBytes >= 0, "Cache size can't be < 0, 0 meaning no cache at all");

    if (0L == maxCacheSizeBytes) {
        return NO_CACHE;
    }

    int initialCapacityCount = 1_000_000;
    int concurrencyLevel = 16;

    CacheBuilder<Object, Object> cacheBuilder = CacheBuilder.newBuilder();
    cacheBuilder = cacheBuilder.maximumWeight(maxCacheSizeBytes);
    cacheBuilder.weigher(Impl.SizeTracker.WEIGHER);

    cacheBuilder.initialCapacity(initialCapacityCount);
    cacheBuilder.concurrencyLevel(concurrencyLevel);
    cacheBuilder.recordStats();

    Impl.SizeTracker sizeTracker = new Impl.SizeTracker();
    cacheBuilder.removalListener(sizeTracker);

    Cache<Key, byte[]> byteCache = cacheBuilder.build();

    return new Impl(L1capacity, byteCache, sizeTracker);
}

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From source file:org.locationtech.geogig.storage.postgresql.PGCache.java

private static PGCache build(Integer initialCapacityCount, Integer concurrencyLevel2, Long maxWeightBytes,
        Optional<Integer> expireSeconds) {
    CacheBuilder<Object, Object> cacheBuilder = CacheBuilder.newBuilder();
    cacheBuilder = cacheBuilder.maximumWeight(maxWeightBytes);
    cacheBuilder.weigher(weigher);/*from  w w w . j ava 2  s  . co m*/
    if (expireSeconds.isPresent()) {
        long seconds = expireSeconds.get();
        Preconditions.checkArgument(seconds > -1);
        cacheBuilder.expireAfterAccess(seconds, TimeUnit.SECONDS);
    }
    cacheBuilder.initialCapacity(initialCapacityCount);
    cacheBuilder.concurrencyLevel(concurrencyLevel2);
    cacheBuilder.recordStats();

    SizeTracker sizeTracker = new SizeTracker();
    cacheBuilder.removalListener(sizeTracker);

    Cache<ObjectId, byte[]> byteCache = cacheBuilder.build();

    return new PGCache(byteCache, sizeTracker);
}

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From source file:org.objectfabric.GoogleCache.java

@SuppressWarnings("unchecked")
public GoogleCache(CacheBuilder builder) {
    super(true, new GoogleCacheBackend(builder.build().asMap()));

    builder.removalListener(new RemovalListener() {

        @Override/*from   w  w w. j  a  v  a2s. c o m*/
        public void onRemoval(RemovalNotification notification) {
            onEviction(notification.getValue());
        }
    });
}

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From source file:com.google.gitiles.TimeCache.java

public TimeCache(CacheBuilder<Object, Object> builder) {
    this.cache = builder.build();
}

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From source file:com.sri.ai.expresso.core.DefaultSyntaxLeaf.java

private static Cache<Object, SyntaxLeaf> newSymbolTable() {
    CacheBuilder<Object, Object> cb = CacheBuilder.newBuilder();

    long maximumSize = ExpressoConfiguration.getGlobalSymbolTableMaximumSize();
    // Note: a maximumSize of 
    // < 0 means no size restrictions
    // = 0 means no cache
    // > 0 means maximum size of cache
    if (maximumSize >= 0L) {
        cb.maximumSize(maximumSize);/*  w ww. ja  va 2  s .co m*/
    }
    if (AICUtilConfiguration.isRecordCacheStatistics()) {
        cb.recordStats();
    }

    Cache<Object, SyntaxLeaf> result = cb.build();

    return result;
}

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From source file:net.maritimecloud.mms.server.rest.TailLogger.java

public TailLogger() {
    CacheBuilder<Object, Object> b = CacheBuilder.newBuilder();
    b.expireAfterAccess(1, TimeUnit.HOURS);
    cache = b.build();
}

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