Example usage for com.google.common.hash Funnels longFunnel

Introduction

In this page you can find the example usage for com.google.common.hash Funnels longFunnel.

Prototype

public static Funnel<Long> longFunnel() 

Source Link

Document

Returns a funnel for longs.

Usage

From source file:com.github.benmanes.caffeine.cache.simulator.membership.bloom.GuavaBloomFilter.java

private BloomFilter<Long> makeBloomFilter() {
    return BloomFilter.create(Funnels.longFunnel(), expectedInsertions, fpp);
}

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From source file:org.veronicadb.core.diskgraph.VDiskGraphShard.java

public VDiskGraphShard(long shardId, int shardSize) {
    super(shardId, shardSize);
    this.shardBloom = BloomFilter.create(Funnels.longFunnel(), shardSize, 0.0001);
    this.cache = new LinkedHashMap<String, VVertex>((int) (shardSize / 0.40), 0.75f, true);
    this.shardFileLocation = CONFIG_STORAGE_DIRECTORY + "/" + shardId;
    this.fileReadPointers = new ArrayBlockingQueue<RandomAccessFile>(10, true);
    this.elementLocks = new HashSet<Long>();
    this.vertexIndexHash = new ConcurrentHashMap<Long, Long>(shardSize);
}

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From source file:org.veronicadb.core.memorygraph.VSubGraph.java

public VSubGraph(long graphId, int shardSize) {
    super(graphId, shardSize);
    shardVertices = new ConcurrentHashMap<Long, VVertex>();
    subGraphBloom = BloomFilter.create(Funnels.longFunnel(), shardSize, 0.0001);
    isReadOnly().set(false);//from  w  w  w  .  ja v  a2s . c o  m
}

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From source file:org.veronicadb.core.memorygraph.VSubGraph.java

/**
 * Re-initialize bloomfilter from bytes/*w  ww  .j  a  v a 2  s. c o m*/
 * @param bloomBytes
 * @throws IOException
 */
protected void loadBloom(byte[] bloomBytes) throws IOException {
    subGraphBloom = BloomFilter.readFrom(new ByteArrayInputStream(bloomBytes), Funnels.longFunnel());
}

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From source file:org.apache.marmotta.kiwi.persistence.KiWiConnection.java

public KiWiConnection(KiWiPersistence persistence, KiWiDialect dialect, CacheManager cacheManager)
        throws SQLException {
    this.cacheManager = cacheManager;
    this.dialect = dialect;
    this.persistence = persistence;
    this.commitLock = new ReentrantLock();
    this.literalLock = new ReentrantLock();
    this.uriLock = new ReentrantLock();
    this.bnodeLock = new ReentrantLock();
    this.batchCommit = dialect.isBatchSupported();
    this.deletedStatementsLog = BloomFilter.create(Funnels.longFunnel(), 100000);
    this.transactionId = getNextSequence();

    initCachePool();/*  www  .  j a v a2 s . c  o  m*/
    initStatementCache();
}

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From source file:org.apache.marmotta.kiwi.persistence.KiWiConnection.java

/**
 * Makes all changes made since the previous
 * commit/rollback permanent and releases any database locks
 * currently held by this <code>Connection</code> object.
 * This method should be/*from   w  ww  . j  a v a2 s  . c  o m*/
 * used only when auto-commit mode has been disabled.
 *
 * @exception java.sql.SQLException if a database access error occurs,
 * this method is called while participating in a distributed transaction,
 * if this method is called on a closed conection or this
 *            <code>Connection</code> object is in auto-commit mode
 * @see #setAutoCommit
 */
public synchronized void commit() throws SQLException {
    numberOfCommits++;

    RetryExecution execution = new RetryExecution("COMMIT");
    execution.execute(connection, new RetryCommand<Void>() {
        @Override
        public Void run() throws SQLException {
            if (tripleBatch != null && tripleBatch.size() > 0) {
                flushBatch();
            }

            deletedStatementsLog = BloomFilter.create(Funnels.longFunnel(), 100000);

            if (connection != null) {
                connection.commit();
            }

            return null;
        }
    });

    this.transactionId = getNextSequence();
}

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From source file:org.apache.marmotta.kiwi.persistence.KiWiConnection.java

/**
 * Undoes all changes made in the current transaction
 * and releases any database locks currently held
 * by this <code>Connection</code> object. This method should be
 * used only when auto-commit mode has been disabled.
 *
 * @exception java.sql.SQLException if a database access error occurs,
 * this method is called while participating in a distributed transaction,
 * this method is called on a closed connection or this
 *            <code>Connection</code> object is in auto-commit mode
 * @see #setAutoCommit//from w w  w.  j av  a 2 s. c  o m
 */
public void rollback() throws SQLException {
    if (tripleBatch != null && tripleBatch.size() > 0) {
        synchronized (tripleBatch) {
            for (KiWiTriple triple : tripleBatch) {
                triple.setId(-1L);
            }
            tripleBatch.clear();
        }
    }
    deletedStatementsLog = BloomFilter.create(Funnels.longFunnel(), 100000);
    if (connection != null && !connection.isClosed()) {
        connection.rollback();
    }

    this.transactionId = getNextSequence();
}

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