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

Example 71 with Rnd

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

the class HugeTableTest method testLargeSymbolTable.

@Test
public void testLargeSymbolTable() throws Exception {
    try (JournalWriter<Name> w = getFactory().writer(Name.class, "name")) {
        Name name = new Name();
        Rnd rnd = new Rnd();
        long t = 0;
        for (int i = -500000; i < 2000000; i++) {
            if (i == 0) {
                t = System.nanoTime();
            }
            name.name = rnd.nextString(10);
            w.append(name);
        }
        w.commit();
        LOG.info().$("Appended 2M symbols in ").$(TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - t)).$("ms").$();
    }
}

Example 72 with Rnd

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

the class JournalTest method testTxTumbleDrier.

@Test
public void testTxTumbleDrier() throws Exception {
    int SIZE = 1000000;
    try (JournalWriter<Quote> origin = getFactory().writer(Quote.class, "origin", SIZE / 12)) {
        try (JournalWriter<Quote> w = getFactory().writer(Quote.class, "q", SIZE / 12)) {
            TestUtils.generateQuoteData(origin, SIZE, DateFormatUtils.parseDateTime("2014-01-30T00:11:00.000Z"), 100000);
            origin.commit();
            ResultSet<Quote> originRs = origin.query().all().asResultSet();
            int blockSize = 5130;
            Rnd rnd = new Rnd(System.currentTimeMillis(), System.nanoTime());
            try {
                for (int i = 0; i < originRs.size(); ) {
                    int d = Math.min(i + blockSize, originRs.size());
                    ResultSet<Quote> rs = originRs.subset(i, d);
                    w.append(rs);
                    if (rnd.nextBoolean()) {
                        w.commit();
                        i += blockSize;
                    } else {
                        w.rollback();
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            Assert.assertFalse(w.isTxActive());
            TestUtils.assertDataEquals(origin, w);
        }
    }
}

Example 73 with Rnd

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

the class JournalTest method testAppendBreak.

@Test
public void testAppendBreak() throws Exception {
    Rnd random = new Rnd(System.nanoTime(), System.currentTimeMillis());
    try (JournalWriter<TestEntity> w = getFactory().writer(TestEntity.class)) {
        try {
            w.append(new TestEntity().setSym("ABC").setDStr("test1"));
            w.append(new TestEntity().setSym("ABC").setDStr(random.nextString(100)));
            w.append(new TestEntity().setSym("ABC").setDStr(random.nextString(70000)).setTimestamp(-1));
        } catch (Exception e) {
        // OK
        } finally {
            w.commit();
        }
        w.append(new TestEntity().setSym("ABC").setDStr(random.nextString(300)));
        Assert.assertEquals(3, w.query().all().withKeys("ABC").asResultSet().size());
        Assert.assertEquals(1, w.query().head().withKeys("ABC").asResultSet().size());
    }
}

Example 74 with Rnd

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

the class UnstructuredFileTest method testIntArrays.

@Test
public void testIntArrays() throws Exception {
    Rnd rnd = new Rnd();
    UnstructuredFile hb = new UnstructuredFile(temp.newFile(), 16, JournalMode.APPEND);
    int[] vals = new int[100];
    long pos = hb.getPos();
    for (int i = 0; i < 10000; i++) {
        for (int k = 0; k < vals.length; k++) {
            vals[k] = rnd.nextInt();
        }
        hb.put(vals);
    }
    rnd.reset();
    hb.setPos(pos);
    for (int i = 0; i < 10000; i++) {
        hb.get(vals);
        for (int k = 0; k < vals.length; k++) {
            Assert.assertEquals(rnd.nextInt(), vals[k]);
        }
    }
}

Example 75 with Rnd

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

the class UnstructuredFileTest method testLongArrays.

@Test
public void testLongArrays() throws Exception {
    Rnd rnd = new Rnd();
    UnstructuredFile hb = new UnstructuredFile(temp.newFile(), 16, JournalMode.APPEND);
    long[] vals = new long[100];
    long pos = hb.getPos();
    for (int i = 0; i < 10000; i++) {
        for (int k = 0; k < vals.length; k++) {
            vals[k] = rnd.nextLong();
        }
        hb.put(vals);
    }
    rnd.reset();
    hb.setPos(pos);
    for (int i = 0; i < 10000; i++) {
        hb.get(vals);
        for (int k = 0; k < vals.length; k++) {
            Assert.assertEquals(rnd.nextLong(), vals[k]);
        }
    }
}