Example usage for java.math RoundingMode FLOOR

Introduction

In this page you can find the example usage for java.math RoundingMode FLOOR.

Prototype

RoundingMode FLOOR

To view the source code for java.math RoundingMode FLOOR.

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Document

Rounding mode to round towards negative infinity.

Usage

From source file:com.reizes.shiva.utils.CommonUtil.java

/**
 * ?   (  ?)/*  w  w  w  .j  a  va  2 s. c  om*/
 * @param input
 * @return
 */
public static String decimalPointTwo(Double input) {
    if (input == null || input == 0) {
        return "0.0";
    }
    DecimalFormat df = new DecimalFormat("#.##");
    df.setRoundingMode(RoundingMode.FLOOR);
    return df.format(input);
}

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From source file:com.ufnet.ws.service.UserService.java

/**
 * cardDelUser/*  w ww .j a  v  a  2  s  . com*/
 * @param request
 * @return
 */
public int cardDelUser(CardDelUserRequest request) {
    // Request && Validation
    String userId = request.getUserId();
    if (StringUtils.isBlank(userId)) {
        log.error("userid[" + userId + "] is blank.");
        return -1;
    }
    // Process
    int returnCode = -1;
    try {
        // ?
        UserInfo userInfo = userInfoRepository.select(userId);
        if (userInfo != null) {
            returnCode = new BigDecimal(userInfo.getAvailableAmount(), new MathContext(0, RoundingMode.FLOOR))
                    .toBigInteger().intValue();
            // 
            userInfoRepository.delete(userId);
            userIpMacRepository.delete(userInfo.getAccountId());
        } else {
            log.error("userid[" + userId + "] not exists.");
            return -1;
        }
    } catch (Exception e) {
        log.error(ExceptionUtils.getStackTrace(e));
    }
    return returnCode;
}

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From source file:com.vsthost.rnd.commons.math.ext.linear.DMatrixUtils.java

/**
 * Returns the DOWN rounded value of the given value for the given steps.
 *
 * @param value The original value to be rounded.
 * @param steps The steps.//from  www  .  j  a  va  2  s . c om
 * @return The DOWN rounded value of the given value for the given steps.
 */
public static BigDecimal roundDownTo(double value, double steps) {
    final BigDecimal bValue = BigDecimal.valueOf(value);
    final BigDecimal bSteps = BigDecimal.valueOf(steps);

    if (Objects.equals(bSteps, BigDecimal.ZERO)) {
        return bValue;
    } else {
        return bValue.divide(bSteps, 0, RoundingMode.FLOOR).multiply(bSteps);
    }
}

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From source file:com.meltmedia.dropwizard.etcd.cluster.ClusterAssignmentIT.java

@Test
public void shouldBlueGreenDeployWithNewServices() throws InterruptedException {
    int processCount = 20;
    for (int i = 0; i < processCount; i++) {
        dao.put("id" + i, processNode(null, "name" + i));
    }// ww  w  .ja  v  a 2  s. com

    int halfFloorCount = IntMath.divide(processCount, 2, RoundingMode.FLOOR);
    int halfCeilCount = IntMath.divide(processCount, 2, RoundingMode.CEILING);

    ClusterNode node0 = new ClusterNode().withId("node0").withStartedAt(new DateTime());

    MetricRegistry registry = new MetricRegistry();

    ClusterService currentClusterService = ClusterService.builder().withEtcdFactory(factoryRule.getFactory())
            .withExecutor(executor).withNodesDirectory(nodeDir).withThisNode(node0).withMetricRegistry(registry)
            .build();

    currentClusterService.start();

    ProcessService<ObjectNode> currentProcessService = currentClusterService.newProcessService(processDir,
            ClusterAssignmentIT::toLifecycle, new TypeReference<ObjectNode>() {
            });

    currentProcessService.start();

    assertState("only green running", s -> s.assignments("node0") == processCount);

    for (int i = 1; i < 4; i++) {
        ClusterNode nextNode = new ClusterNode().withId("node" + i).withStartedAt(new DateTime());

        MetricRegistry nextRegistry = new MetricRegistry();

        ClusterService nextClusterService = ClusterService.builder().withEtcdFactory(factoryRule.getFactory())
                .withExecutor(executor).withNodesDirectory(nodeDir).withThisNode(nextNode)
                .withMetricRegistry(nextRegistry).build();

        nextClusterService.start();

        ProcessService<ObjectNode> nextProcessService = nextClusterService.newProcessService(processDir,
                ClusterAssignmentIT::toLifecycle, new TypeReference<ObjectNode>() {
                });

        nextProcessService.start();

        assertState(
                "blue and green running", s -> s.maxAssignments() == halfCeilCount
                        && s.minAssignments() == halfFloorCount && s.unassigned() == 0,
                s -> s.unassigned() > 1);

        final Runnable stopProcess = currentProcessService::stop;
        final Runnable stopClusterService = currentClusterService::stop;

        executor.schedule(() -> {
            stopProcess.run();
            stopClusterService.run();
        }, 1, TimeUnit.MILLISECONDS);

        assertState("blue now green", s -> s.assignments(nextProcessService.getId()) == processCount,
                s -> s.unassigned() > 1);

        currentProcessService = nextProcessService;
        currentClusterService = nextClusterService;
    }

    currentProcessService.stop();
    currentClusterService.stop();

    assertState("all stopped", s -> s.unassigned() == processCount);
}

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From source file:com.prowidesoftware.swift.utils.SwiftFormatUtils.java

/**
 * Return the number of decimals for the given number, which can be <code>null</code>, in which case this method returns zero.
 * /*from   w  w  w  .j  a  va2 s  . c  o m*/
 * @return the number of decimal in the number or zero if there are none or the amount is <code>null</code>
 * @since 7.8
 */
public static int decimalsInAmount(final BigDecimal amount) {
    if (amount != null) {
        BigDecimal d = new BigDecimal(amount.toString());
        BigDecimal result = d.subtract(d.setScale(0, RoundingMode.FLOOR)).movePointRight(d.scale());
        if (result.intValue() != 0) {
            return result.toString().length();
        }
    }
    return 0;
}

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From source file:jp.furplag.util.commons.NumberUtils.java

/**
 * {@link java.lang.Math#floor(double)}.
 *
 * @param o the object, number or string.
 * @param scale scale of fraction./*from ww  w .j a v a  2s  .c om*/
 * @param type return type.
 * @return {@code floor(o)}. Return null if o could not convertible to number.
 */
public static <T extends Number> T floor(final Object o, final Number scale, final Class<T> type) {
    return setScale(o, scale, RoundingMode.FLOOR, type);
}

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From source file:eu.europa.ec.fisheries.uvms.rules.service.business.AbstractFact.java

public int numberOfDecimals(BigDecimal value) {
    if (value == null) {
        return -1;
    }/*from   ww w.  j a  v  a 2  s  .c  o  m*/

    int i = value.subtract(value.setScale(0, RoundingMode.FLOOR)).movePointRight(value.scale()).intValue();
    return Integer.toString(i).length();
}

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From source file:jp.furplag.util.commons.NumberUtilsTest.java

/**
 * {@link jp.furplag.util.commons.NumberUtils#divide(java.lang.Object, java.lang.Number, java.lang.Number, java.math.RoundingMode, java.lang.Class)}.
 *///from w w w  .j  av a2 s  . com
@SuppressWarnings("unchecked")
@Test
public void testDivideTNumberNumberRoundingModeClassOfT() {
    assertEquals("null", null, divide(null, null, null, null, null));
    assertEquals("null", null, divide(10, 5, 0, null, null));
    assertEquals("null", null, divide(10, 5, null, null, null));
    assertEquals("null", null, divide(10, 3, 2, RoundingMode.DOWN, null));
    assertEquals("null", (Object) 3.33f, divide(10, 3, 2, RoundingMode.DOWN, float.class));
    try {
        for (Class<?> type : PRIMITIVES) {
            Object expected = ClassUtils.primitiveToWrapper(type).getMethod("valueOf", String.class)
                    .invoke(null, "0");
            assertEquals("fallback: " + type.getSimpleName(), expected,
                    divide(null, null, null, null, (Class<? extends Number>) type));
        }
        for (Class<?> type : NUMBERS) {
            Object expected = valueOf(3.33, (Class<? extends Number>) type);
            assertEquals("10 / 3: " + type.getSimpleName(), expected,
                    divide(10, 3, 2, RoundingMode.DOWN, (Class<? extends Number>) type));
            assertEquals("10 / 3: " + type.getSimpleName(), expected,
                    divide(10, 3, 2, RoundingMode.HALF_EVEN, (Class<? extends Number>) type));
            assertEquals("10 / 3: " + type.getSimpleName(), expected,
                    divide(10, 3, 2, RoundingMode.HALF_UP, (Class<? extends Number>) type));
            assertEquals("10 / 3: " + type.getSimpleName(), expected,
                    divide(10, 3, 2, RoundingMode.FLOOR, (Class<? extends Number>) type));
            expected = valueOf(3.34, (Class<? extends Number>) type);
            assertEquals("10 / 3: " + type.getSimpleName(), expected,
                    divide(10, 3, 2, RoundingMode.UP, (Class<? extends Number>) type));
            assertEquals("10 / 3: " + type.getSimpleName(), expected,
                    divide(10, 3, 2, RoundingMode.CEILING, (Class<? extends Number>) type));
        }
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage() + "\n" + Arrays.toString(e.getStackTrace()));
    }
}

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From source file:jp.furplag.util.commons.NumberUtilsTest.java

/**
 * {@link jp.furplag.util.commons.NumberUtils#floor(java.lang.Object)}.
 *//*from  w  w w  .  ja  va2  s. c  o m*/
@Test
public void testFloorObject() {
    assertEquals("null", null, floor((Object) null));
    assertEquals("null", null, floor(""));
    assertEquals("null", null, floor("not a number."));
    assertEquals("PI: Float: ", 3f, floor("3.141592653589793f"));
    assertEquals("PI: Double: ", 3d, floor("3.141592653589793d"));
    assertEquals("PI: BigDecimal: ", BigDecimal.valueOf(Math.PI).setScale(0, RoundingMode.FLOOR),
            floor((Object) BigDecimal.valueOf(Math.PI)));
}

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From source file:controllers.Send.java

public static Result receipt(String idToken) {
    try {//w w w. jav a 2  s  .  c  o  m
        models.Transaction transaction = ApiHelper.getTransaction(idToken);
        transaction.senderAmount.setScale(6, RoundingMode.FLOOR);
        transaction.beneficiaryAmount.setScale(6, RoundingMode.FLOOR);
        return ok(receipt.render(null, transaction));
    } catch (ApiException e) {
        return ok(receipt.render(e.getMessage(), null));
    }
}

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