Example usage for java.util.concurrent.atomic AtomicLong set

Introduction

In this page you can find the example usage for java.util.concurrent.atomic AtomicLong set.

Prototype

public final void set(long newValue) 

Source Link

Document

Sets the value to newValue , with memory effects as specified by VarHandle#setVolatile .

Usage

From source file:Main.java

public static void main(String[] argv) {
    AtomicLong nextId = new AtomicLong();
    nextId.set(12312L);
    System.out.println(nextId.longValue());
}

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From source file:com.linkedin.pinot.tools.perf.QueryRunner.java

private static void reportAndClearStatistics(AtomicInteger numQueriesExecuted, AtomicLong totalBrokerTime,
        AtomicLong totalClientTime, List<Statistics> statisticsList) {
    numQueriesExecuted.set(0);//from  www . j  a  v a 2 s .  com
    totalBrokerTime.set(0L);
    totalClientTime.set(0L);
    for (Statistics statistics : statisticsList) {
        statistics.report();
        statistics.clear();
    }
}

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From source file:org.tros.utils.Random.java

/**
 * Reset the specified counter to the specified value.
 *
 * @param c//from w  w  w  .j a v  a  2 s . c  om
 * @param value
 */
public synchronized static void reset(Class<?> c, long value) {
    String key = DEFAULT_KEY;
    switch (_incrementType) {
    case useClass:
        key = c.getName();
        break;
    case usePackage:
        key = c.getPackage().getName();
        break;
    }
    if (!COUNTERS.containsKey(key)) {
        COUNTERS.put(key, new AtomicLong(1));
    }
    AtomicLong l = COUNTERS.get(key);
    l.set(value + 1);
}

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From source file:org.apache.hadoop.hbase.client.metrics.ScanMetrics.java

public void setCounter(String counterName, long value) {
    AtomicLong c = this.counters.get(counterName);
    if (c != null) {
        c.set(value);
    }/*from   w  w  w  . j  a v  a  2s .c  o m*/
}

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From source file:com.jivesoftware.os.amza.service.storage.WALStorage.java

private static void minimize(AtomicLong existing, long value) {
    long existingValue = existing.get();
    if (existingValue == -1 || value < existingValue) {
        existing.set(value);
    }/*  www . j a  v a2s.c o m*/
}

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From source file:com.aol.advertising.qiao.management.metrics.StatisticsStore.java

@Override
@ManagedOperation(description = "Reset counters")
public void resetCounters() {
    for (AtomicLong v : stats.values()) {
        v.set(0);
    }//from  w  w w  . ja v a  2s  . co  m

}

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From source file:ubicrypt.core.UtilsTest.java

private void write(final int size) throws InterruptedException, IOException {
    final Path target = Paths.get(System.getProperty("java.io.tmpdir"), UUID.randomUUID().toString());
    final byte[] bytes = new byte[size];
    new Random().nextBytes(bytes);

    final AtomicLong length = new AtomicLong(0);
    final CountDownLatch cd = new CountDownLatch(1);
    Utils.write(target, new ByteArrayInputStream(bytes)).subscribe(sizef -> {
        length.set(sizef);
    }, Throwable::printStackTrace, () -> {
        cd.countDown();/*from   w w w .ja  v a 2  s  . c  o m*/
    });
    if (!cd.await(2, TimeUnit.SECONDS)) {
        Assertions.fail("not arrived completed");
    }
    assertThat(length.get()).isEqualTo(bytes.length);
    assertThat(Files.readAllBytes(target)).isEqualTo(bytes);
    Files.delete(target);
}

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From source file:io.galeb.router.services.JmxReporterService.java

private long extractDelta(final AtomicLong last, final ToLongFunction<Undertow.ListenerInfo> longFunction) {
    long start = System.nanoTime();
    double localLast = last.get() * 1.0;
    double current = undertow.getListenerInfo().stream().mapToLong(longFunction).sum() * 1.0;
    long end = System.nanoTime();
    last.set((long) current);
    return Math.round((current * ((double) end / (double) start)) - localLast);
}

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From source file:net.hydromatic.foodbench.Main.java

/** Does the work. */
private void run(String jdbcUrl, String catalog, String driverClassName)
        throws IOException, SQLException, ClassNotFoundException {
    URL url = FoodMartQuery.class.getResource("/queries.json");
    InputStream inputStream = url.openStream();
    ObjectMapper mapper = new ObjectMapper();
    Map values = mapper.readValue(inputStream, Map.class);
    //noinspection unchecked
    List<Map<String, Object>> tests = (List) values.get("queries");
    if (driverClassName != null) {
        Class.forName(driverClassName);
    }/*  w w  w  .j  a  va 2s .  c o m*/
    Connection connection = DriverManager.getConnection(jdbcUrl);
    if (catalog != null) {
        connection.setCatalog(catalog);
    }
    Statement statement = connection.createStatement();
    for (Map<String, Object> test : tests) {
        int id = (Integer) test.get("id");
        if (!idSet.contains(id)) {
            continue;
        }
        String sql = (String) test.get("sql");
        if (jdbcUrl.startsWith("jdbc:mysql:")) {
            sql = sql.replace("\"", "`");
            sql = sql.replace(" NULLS FIRST", "");
            sql = sql.replace(" NULLS LAST", "");
            if (sql.contains("VALUES ")) {
                System.out.println("query id: " + id + " sql: " + sql + " skipped");
                continue;
            }
        }
        if (jdbcUrl.startsWith("jdbc:optiq:")) {
            sql = sql.replace("RTRIM(", "TRIM(TRAILING ' ' FROM ");
        }
        final AtomicLong tPrepare = new AtomicLong(0);
        Hook.Closeable hook = Hook.JAVA_PLAN.add(new Function1<Object, Object>() {
            public Object apply(Object a0) {
                tPrepare.set(System.nanoTime());
                return null;
            }
        });
        try {
            final long t0 = System.nanoTime();
            ResultSet resultSet = statement.executeQuery(sql);
            int n = 0;
            while (resultSet.next()) {
                ++n;
            }
            resultSet.close();
            final long tEnd = System.nanoTime();
            final long nanos = tEnd - t0;
            final long prepare = tPrepare.longValue() - t0;
            final long execute = tEnd - tPrepare.longValue();
            System.out.println("query id: " + id + " rows: " + n + " nanos: " + NF.format(nanos) + " prepare: "
                    + NF.format(prepare) + " execute: " + NF.format(execute) + " prepare%: "
                    + ((float) prepare / (float) nanos * 100f));
        } catch (SQLException e) {
            System.out.println("query id: " + id + " sql: " + sql + " error: " + e.getMessage());
            if (verbose) {
                e.printStackTrace();
            }
        } finally {
            hook.close();
        }
    }
    statement.close();
    connection.close();
}

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From source file:com.taobao.adfs.util.Utilities.java

public static void greaterAndSet(long value, AtomicLong atomicValue) {
    synchronized (atomicValue) {
        if (value > atomicValue.get())
            atomicValue.set(value);
    }/*from  w ww.j ava  2 s .  c  o  m*/
}

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