Example usage for java.lang Number longValue

List of usage examples for java.lang Number longValue

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Introduction

In this page you can find the example usage for java.lang Number longValue.

Prototype

public abstract long longValue();

Source Link

Document

Returns the value of the specified number as a long .

Usage

From source file:javadz.beanutils.converters.NumberConverter.java

/**
 * Convert any Number object to the specified type for this
 * <i>Converter</i>.//www .j  av a  2  s.  com
 * <p>
 * This method handles conversion to the following types:
 * <ul>
 *     <li><code>java.lang.Byte</code></li>
 *     <li><code>java.lang.Short</code></li>
 *     <li><code>java.lang.Integer</code></li>
 *     <li><code>java.lang.Long</code></li>
 *     <li><code>java.lang.Float</code></li>
 *     <li><code>java.lang.Double</code></li>
 *     <li><code>java.math.BigDecimal</code></li>
 *     <li><code>java.math.BigInteger</code></li>
 * </ul>
 * @param sourceType The type being converted from
 * @param targetType The Number type to convert to
 * @param value The Number to convert.
 *
 * @return The converted value.
 */
private Number toNumber(Class sourceType, Class targetType, Number value) {

    // Correct Number type already
    if (targetType.equals(value.getClass())) {
        return value;
    }

    // Byte
    if (targetType.equals(Byte.class)) {
        long longValue = value.longValue();
        if (longValue > Byte.MAX_VALUE) {
            throw new ConversionException(
                    toString(sourceType) + " value '" + value + "' is too large for " + toString(targetType));
        }
        if (longValue < Byte.MIN_VALUE) {
            throw new ConversionException(
                    toString(sourceType) + " value '" + value + "' is too small " + toString(targetType));
        }
        return new Byte(value.byteValue());
    }

    // Short
    if (targetType.equals(Short.class)) {
        long longValue = value.longValue();
        if (longValue > Short.MAX_VALUE) {
            throw new ConversionException(
                    toString(sourceType) + " value '" + value + "' is too large for " + toString(targetType));
        }
        if (longValue < Short.MIN_VALUE) {
            throw new ConversionException(
                    toString(sourceType) + " value '" + value + "' is too small " + toString(targetType));
        }
        return new Short(value.shortValue());
    }

    // Integer
    if (targetType.equals(Integer.class)) {
        long longValue = value.longValue();
        if (longValue > Integer.MAX_VALUE) {
            throw new ConversionException(
                    toString(sourceType) + " value '" + value + "' is too large for " + toString(targetType));
        }
        if (longValue < Integer.MIN_VALUE) {
            throw new ConversionException(
                    toString(sourceType) + " value '" + value + "' is too small " + toString(targetType));
        }
        return new Integer(value.intValue());
    }

    // Long
    if (targetType.equals(Long.class)) {
        return new Long(value.longValue());
    }

    // Float
    if (targetType.equals(Float.class)) {
        if (value.doubleValue() > Float.MAX_VALUE) {
            throw new ConversionException(
                    toString(sourceType) + " value '" + value + "' is too large for " + toString(targetType));
        }
        return new Float(value.floatValue());
    }

    // Double
    if (targetType.equals(Double.class)) {
        return new Double(value.doubleValue());
    }

    // BigDecimal
    if (targetType.equals(BigDecimal.class)) {
        if (value instanceof Float || value instanceof Double) {
            return new BigDecimal(value.toString());
        } else if (value instanceof BigInteger) {
            return new BigDecimal((BigInteger) value);
        } else {
            return BigDecimal.valueOf(value.longValue());
        }
    }

    // BigInteger
    if (targetType.equals(BigInteger.class)) {
        if (value instanceof BigDecimal) {
            return ((BigDecimal) value).toBigInteger();
        } else {
            return BigInteger.valueOf(value.longValue());
        }
    }

    String msg = toString(getClass()) + " cannot handle conversion to '" + toString(targetType) + "'";
    if (log().isWarnEnabled()) {
        log().warn("    " + msg);
    }
    throw new ConversionException(msg);

}

From source file:com.jkoolcloud.tnt4j.streams.utils.Utils.java

/**
 * Casts provided number value to desired number type.
 *
 * @param num/*from  w ww .  j  av a  2 s.co  m*/
 *            number value to cast
 * @param clazz
 *            number class to cast number to
 * @param <T>
 *            desired number type
 * @return number value cast to desired numeric type
 */
@SuppressWarnings("unchecked")
public static <T extends Number> T castNumber(Number num, Class<T> clazz) {
    Number cNum = 0;

    if (clazz.isAssignableFrom(Long.class)) {
        cNum = num.longValue();
    } else if (clazz.isAssignableFrom(Integer.class)) {
        cNum = num.intValue();
    } else if (clazz.isAssignableFrom(Byte.class)) {
        cNum = num.byteValue();
    } else if (clazz.isAssignableFrom(Float.class)) {
        cNum = num.floatValue();
    } else if (clazz.isAssignableFrom(Double.class)) {
        cNum = num.doubleValue();
    } else if (clazz.isAssignableFrom(Short.class)) {
        cNum = num.shortValue();
    }

    return (T) cNum;
}

From source file:com.opera.core.systems.scope.services.ums.EcmaScriptDebugger.java

protected Object parseNumber(String value) {
    Number number;
    try {/* w ww  .  j  a v a 2s . c  o  m*/
        number = NumberFormat.getInstance().parse(value);
        if (number instanceof Long)
            return number.longValue();
        else
            return number.doubleValue();
    } catch (ParseException e) {
        throw new WebDriverException("The result from the script can not be parsed");
    }
}

From source file:io.fabric8.apiman.rest.Kubernetes2ApimanFilter.java

/**
 * @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
 *///from  w ww .  j  a  va  2s . c om
@Override
public void init(FilterConfig config) throws ServletException {
    // maximum 10000 tokens in the cache
    Number nsCacheMaxsize = Systems.getEnvVarOrSystemProperty(NS_CACHE_MAXSIZE, 10000);
    // cache for 60  min
    Number nsTTL = Systems.getEnvVarOrSystemProperty(NS_TTL, 10);
    if (nsCache == null) {
        nsCache = CacheBuilder.newBuilder().concurrencyLevel(4) // allowed concurrency among update operations
                .maximumSize(nsCacheMaxsize.longValue()).expireAfterWrite(nsTTL.longValue(), TimeUnit.MINUTES)
                .build(new CacheLoader<String, ApimanInfo>() {
                    public ApimanInfo load(String authToken) throws Exception {
                        return syncKubernetesToApiman(authToken);
                    }
                });
    }
    boolean isTestMode = getSystemPropertyOrEnvVar(ApimanStarter.APIMAN_TESTMODE, false);
    if (!isTestMode && !isWatching) {
        watchNamespaces();
    }

}

From source file:net.solarnetwork.node.power.impl.sma.sunnynet.SMASunnyNetPowerDatumDataSource.java

@Override
public GeneralNodeACEnergyDatum conductConversation(ConversationalDataCollector dataCollector) {
    SmaPacket req = null;/*  www.  j  a v  a 2s .co  m*/
    SmaPacket resp = null;
    if (this.smaAddress < 0 || this.channelMap == null) {
        // Issue NetStart command to find SMA address
        req = writeCommand(dataCollector, SmaCommand.NetStart, 0, 0, SmaControl.RequestGroup,
                SmaPacket.EMPTY_DATA);
        resp = decodeResponse(dataCollector, req);
        if (log.isTraceEnabled()) {
            log.trace("Got decoded NetStart response: " + resp);
        }
        if (!resp.isValid()) {
            log.warn("Invalid response to NetStart command, cannot continue: " + resp);
            return null;
        }
        // TODO handle multiple device responses, for now we only accept one

        // Issue GetChannelInfo command, to get full list of available channels
        // This returns a lot of data... so we just do it once and cache the 
        // results for subsequent use
        this.smaAddress = resp.getSrcAddress();
        req = writeCommand(dataCollector, SmaCommand.GetChannelInfo, this.smaAddress, 0,
                SmaControl.RequestSingle, SmaPacket.EMPTY_DATA);
        resp = decodeResponse(dataCollector, req);
        if (!resp.isValid()) {
            log.warn("Invalid response to GetChannelInfo command, cannot continue: " + resp);
            return null;
        }
        Map<String, SmaChannel> channels = getSmaChannelMap(resp);
        if (log.isTraceEnabled()) {
            log.trace("Got decoded GetChannelInfo response: " + resp + ", with " + channels.size()
                    + " channels decoded");
        }
        this.channelMap = channels;
    }

    // Issue SynOnline command
    int pollTime = (int) Math.ceil(System.currentTimeMillis() / 1000.0);
    req = writeProclamation(dataCollector, SmaCommand.SynOnline, 0, 0, SmaControl.RequestGroup,
            SmaUtils.littleEndianBytes(pollTime));

    // pause for a few secs, as first channel may not respond otherwise
    try {
        Thread.sleep(this.synOnlineWaitMs);
    } catch (InterruptedException e) {
        // ignore this one
    }

    GeneralNodeACEnergyDatum datum = new GeneralNodeACEnergyDatum();
    datum.setSourceId(this.sourceId);

    // Issue GetData command for each channel we're interested in
    Number pvVolts = getNumericDataValue(dataCollector, this.pvVoltsChannelName, Float.class);
    Number pvAmps = getNumericDataValue(dataCollector, this.pvAmpsChannelName, Float.class);
    if (pvVolts != null && pvAmps != null) {
        datum.setWatts(Math.round(pvVolts.floatValue() * pvAmps.floatValue()));
    }

    Number wh = getNumericDataValue(dataCollector, this.kWhChannelName, Double.class);
    if (wh != null) {
        datum.setWattHourReading(wh.longValue());
    }

    return datum;
}

From source file:email.schaal.ocreader.ListActivity.java

@Override
public void onLoadMore(@NonNull TreeItem treeItem) {
    final Number minId = getRealm().where(TemporaryFeed.class).findFirst().getItems().where().min(Item.ID);

    // minId is null if there are no feed items in treeItem
    SyncService.startLoadMore(this, treeItem.getId(), minId != null ? minId.longValue() : 0,
            treeItem instanceof Feed);
}

From source file:de.tuberlin.uebb.jbop.optimizer.arithmetic.ArithmeticExpressionInterpreter.java

private AbstractInsnNode handleDiv(final int opcode, final Number one, final Number two) {
    final Number number;
    switch (opcode) {
    case IDIV:// ww  w  . j a v a 2  s  .c  om
        number = Integer.valueOf(one.intValue() / two.intValue());
        break;
    case DDIV:
        number = Double.valueOf(one.doubleValue() / two.doubleValue());
        break;
    case FDIV:
        number = Float.valueOf(one.floatValue() / two.floatValue());
        break;
    case LDIV:
        number = Long.valueOf(one.longValue() / two.longValue());
        break;
    default:
        return null;
    }
    return NodeHelper.getInsnNodeFor(number);
}

From source file:de.tuberlin.uebb.jbop.optimizer.arithmetic.ArithmeticExpressionInterpreter.java

private AbstractInsnNode handleMul(final int opcode, final Number one, final Number two) {
    final Number number;
    switch (opcode) {
    case IMUL://from ww  w.  j  a  va  2s .co m
        number = Integer.valueOf(one.intValue() * two.intValue());
        break;
    case DMUL:
        number = Double.valueOf(one.doubleValue() * two.doubleValue());
        break;
    case FMUL:
        number = Float.valueOf(one.floatValue() * two.floatValue());
        break;
    case LMUL:
        number = Long.valueOf(one.longValue() * two.longValue());
        break;
    default:
        return null;
    }
    return NodeHelper.getInsnNodeFor(number);
}

From source file:de.tuberlin.uebb.jbop.optimizer.arithmetic.ArithmeticExpressionInterpreter.java

private AbstractInsnNode handleSub(final int opcode, final Number one, final Number two) {
    final Number number;
    switch (opcode) {
    case ISUB:/*  w  ww  .  ja v a2  s  . c o m*/
        number = Integer.valueOf(one.intValue() - two.intValue());
        break;
    case DSUB:
        number = Double.valueOf(one.doubleValue() - two.doubleValue());
        break;
    case FSUB:
        number = Float.valueOf(one.floatValue() - two.floatValue());
        break;
    case LSUB:
        number = Long.valueOf(one.longValue() - two.longValue());
        break;
    default:
        return null;
    }
    return NodeHelper.getInsnNodeFor(number);
}

From source file:de.tuberlin.uebb.jbop.optimizer.arithmetic.ArithmeticExpressionInterpreter.java

private AbstractInsnNode handleAdd(final int opcode, final Number one, final Number two) {
    final Number number;
    switch (opcode) {
    case IADD://w  w  w.jav  a2 s .  c o  m
        number = Integer.valueOf(one.intValue() + two.intValue());
        break;
    case DADD:
        number = Double.valueOf(one.doubleValue() + two.doubleValue());
        break;
    case FADD:
        number = Float.valueOf(one.floatValue() + two.floatValue());
        break;
    case LADD:
        number = Long.valueOf(one.longValue() + two.longValue());
        break;
    default:
        return null;
    }
    return NodeHelper.getInsnNodeFor(number);
}