Examples with Rnd com.questdb.std.Rnd used on opensource projects

Example 56 with Rnd

use of com.questdb.std.Rnd in project questdb by bluestreak01.

the class SingleJournalQueryTest method testSearchIndexedSymNull.

@Test
public void testSearchIndexedSymNull() throws Exception {
    try (JournalWriter w = getFactory().writer(new JournalStructure("tab").$sym("id").index().buckets(128).$double("x").$double("y").$ts())) {
        Rnd rnd = new Rnd();
        ObjHashSet<String> names = getNames(rnd, 128);
        int mask = 127;
        long t = DateFormatUtils.parseDateTime("2015-03-12T00:00:00.000Z");
        for (int i = 0; i < 10000; i++) {
            JournalEntryWriter ew = w.entryWriter();
            if ((rnd.nextPositiveInt() % 10) == 0) {
                ew.putNull(0);
            } else {
                ew.putSym(0, names.get(rnd.nextInt() & mask));
            }
            ew.putDouble(1, rnd.nextDouble());
            ew.putDouble(2, rnd.nextDouble());
            ew.putDate(3, t += 10);
            ew.append();
        }
        w.commit();
    }
    assertNullSearch();
}

Example 57 with Rnd

use of com.questdb.std.Rnd in project questdb by bluestreak01.

the class OperatorTest method setUp.

@BeforeClass
public static void setUp() throws Exception {
    // this does thread local allocations that
    // should not be accounted for while
    // measuring query allocations and de-allocations
    FACTORY_CONTAINER.getFactory().getConfiguration().exists("");
    try (JournalWriter w = FACTORY_CONTAINER.getFactory().writer(new JournalStructure("abc").$int("i").$double("d").$float("f").$byte("b").$long("l").$str("str").$bool("boo").$sym("sym").$short("sho").$date("date").$ts().$())) {
        int n = 1000;
        String[] sym = { "AX", "XX", "BZ", "KK" };
        Rnd rnd = new Rnd();
        long t = Dates.toMillis(2016, 5, 1, 10, 20);
        long d = Dates.toMillis(2016, 5, 1, 10, 20);
        for (int i = 0; i < n; i++) {
            JournalEntryWriter ew = w.entryWriter(t += 60000);
            ew.putInt(0, (rnd.nextPositiveInt() & 15) == 0 ? Numbers.INT_NaN : rnd.nextInt());
            ew.putDouble(1, (rnd.nextPositiveInt() & 15) == 0 ? Double.NaN : rnd.nextDouble());
            ew.putFloat(2, (rnd.nextPositiveInt() & 15) == 0 ? Float.NaN : rnd.nextFloat());
            ew.put(3, (byte) rnd.nextInt());
            ew.putLong(4, (rnd.nextPositiveInt() & 15) == 0 ? Numbers.LONG_NaN : rnd.nextLong());
            ew.putStr(5, (rnd.nextPositiveInt() & 15) == 0 ? null : sym[rnd.nextPositiveInt() % sym.length]);
            ew.putBool(6, rnd.nextBoolean());
            ew.putSym(7, (rnd.nextPositiveInt() & 15) == 0 ? null : sym[rnd.nextPositiveInt() % sym.length]);
            ew.putShort(8, (short) rnd.nextInt());
            d += 45000;
            ew.putDate(9, (rnd.nextPositiveInt() & 15) == 0 ? Numbers.LONG_NaN : d);
            ew.append();
        }
        w.commit();
    }
}

Example 58 with Rnd

use of com.questdb.std.Rnd in project questdb by bluestreak01.

the class SymbolNullQueryTest method setUp.

@BeforeClass
public static void setUp() throws Exception {
    int tradeCount = 100;
    int quoteCount = 300;
    JournalWriter trades = FACTORY_CONTAINER.getFactory().writer(new JournalStructure("trades").$int("quoteId").$sym("tag1").$double("amount").recordCountHint(tradeCount).$ts());
    JournalWriter quotes = FACTORY_CONTAINER.getFactory().writer(new JournalStructure("quotes").$int("quoteId").$sym("tag").$double("rate").recordCountHint(quoteCount).$ts());
    int tsIncrementMax = 10000;
    long timestamp = DateFormatUtils.parseDateTime("2015-03-23T00:00:00.000Z");
    Rnd rnd = new Rnd();
    ObjList<String> tags = new ObjList<>();
    for (int i = 0; i < 500; i++) {
        tags.add(rnd.nextBoolean() ? rnd.nextString(rnd.nextInt() & 15) : null);
    }
    for (int i = 0; i < quoteCount; i++) {
        JournalEntryWriter w = quotes.entryWriter();
        w.putInt(0, i);
        w.putSym(1, tags.getQuick(rnd.nextPositiveInt() % tags.size()));
        w.putDouble(2, rnd.nextDouble());
        w.putDate(3, timestamp += rnd.nextPositiveInt() % tsIncrementMax);
        w.append();
    }
    quotes.commit();
    timestamp = DateFormatUtils.parseDateTime("2015-03-23T00:00:00.000Z");
    for (int i = 0; i < tradeCount; i++) {
        JournalEntryWriter w = trades.entryWriter();
        w.putInt(0, rnd.nextPositiveInt() % quoteCount);
        w.putSym(1, tags.getQuick(rnd.nextPositiveInt() % tags.size()));
        w.putDouble(2, rnd.nextDouble());
        w.putDate(3, timestamp += rnd.nextPositiveInt() % tsIncrementMax);
        w.append();
    }
    quotes.close();
    trades.close();
}

Example 59 with Rnd

use of com.questdb.std.Rnd in project questdb by bluestreak01.

the class HashTest method testStringHash.

@Test
public void testStringHash() {
    Rnd rnd = new Rnd();
    IntHashSet hashes = new IntHashSet(100000);
    final int LEN = 64;
    long address = Unsafe.malloc(LEN);
    for (int i = 0; i < 100000; i++) {
        rnd.nextChars(address, LEN / 2);
        hashes.add(Hash.hashMem(address, LEN));
    }
    Assert.assertTrue("Hash function distribution dropped", hashes.size() > 99990);
}

Example 60 with Rnd

use of com.questdb.std.Rnd in project questdb by bluestreak01.

the class IntervalFrameCursorTest method testReload.

public void testReload(int partitionBy, long increment, LongList intervals, int rowCount, CharSequence expected1, CharSequence expected2) throws Exception {
    TestUtils.assertMemoryLeak(() -> {
        try (TableModel model = new TableModel(configuration, "x", partitionBy).col("a", ColumnType.SYMBOL).indexed(true, 4).col("b", ColumnType.SYMBOL).indexed(true, 4).timestamp()) {
            CairoTestUtils.create(model);
        }
        final Rnd rnd = new Rnd();
        long timestamp = DateFormatUtils.parseDateTime("1980-01-01T00:00:00.000Z");
        try (CairoEngine engine = new Engine(configuration)) {
            final TableReaderRecord record = new TableReaderRecord();
            final IntervalFrameCursorFactory factory = new IntervalFrameCursorFactory(engine, "x", intervals);
            try (DataFrameCursor cursor = factory.getCursor()) {
                // assert that there is nothing to start with
                record.of(cursor.getReader());
                assertEquals("", record, cursor);
                try (TableWriter writer = new TableWriter(configuration, "x")) {
                    for (int i = 0; i < rowCount; i++) {
                        TableWriter.Row row = writer.newRow(timestamp);
                        row.putSym(0, rnd.nextChars(4));
                        row.putSym(1, rnd.nextChars(4));
                        row.append();
                        timestamp += increment;
                    }
                    writer.commit();
                    Assert.assertTrue(cursor.reload());
                    assertEquals(expected1, record, cursor);
                    timestamp = Dates.addYear(timestamp, 3);
                    for (int i = 0; i < rowCount; i++) {
                        TableWriter.Row row = writer.newRow(timestamp);
                        row.putSym(0, rnd.nextChars(4));
                        row.putSym(1, rnd.nextChars(4));
                        row.append();
                        timestamp += increment;
                    }
                    writer.commit();
                    Assert.assertTrue(cursor.reload());
                    if (expected2 != null) {
                        assertEquals(expected2, record, cursor);
                    } else {
                        assertEquals(expected1, record, cursor);
                    }
                    Assert.assertFalse(cursor.reload());
                }
            }
        }
    });
}