Example usage for org.apache.commons.lang3.math NumberUtils toDouble

Introduction

In this page you can find the example usage for org.apache.commons.lang3.math NumberUtils toDouble.

Prototype

public static double toDouble(final String str, final double defaultValue) 

Source Link

Document

Convert a String to a double, returning a default value if the conversion fails.

If the string str is null, the default value is returned.

 NumberUtils.toDouble(null, 1.1d)   = 1.1d NumberUtils.toDouble("", 1.1d)     = 1.1d NumberUtils.toDouble("1.5", 0.0d)  = 1.5d 

Usage

From source file:io.wcm.config.core.management.util.TypeConversion.java

/**
 * Converts a string value to an object with the given parameter type.
 * @param value String value/*  www.  ja va2  s . c o m*/
 * @param type Parameter type
 * @return Converted value
 * @throws IllegalArgumentException If type is not supported
 */
@SuppressWarnings("unchecked")
public static <T> T stringToObject(String value, Class<T> type) {
    if (value == null) {
        return null;
    }
    if (type == String.class) {
        return (T) value;
    } else if (type == String[].class) {
        return (T) StringUtils.splitPreserveAllTokens(value, ARRAY_DELIMITER);
    }
    if (type == Integer.class) {
        return (T) (Integer) NumberUtils.toInt(value, 0);
    }
    if (type == Long.class) {
        return (T) (Long) NumberUtils.toLong(value, 0L);
    }
    if (type == Double.class) {
        return (T) (Double) NumberUtils.toDouble(value, 0d);
    }
    if (type == Boolean.class) {
        return (T) (Boolean) BooleanUtils.toBoolean(value);
    }
    if (type == Map.class) {
        String[] rows = StringUtils.splitPreserveAllTokens(value, ARRAY_DELIMITER);
        Map<String, String> map = new LinkedHashMap<>();
        for (int i = 0; i < rows.length; i++) {
            String[] keyValue = StringUtils.splitPreserveAllTokens(rows[i], KEY_VALUE_DELIMITER);
            if (keyValue.length == 2 && StringUtils.isNotEmpty(keyValue[0])) {
                map.put(keyValue[0], StringUtils.isEmpty(keyValue[1]) ? null : keyValue[1]);
            }
        }
        return (T) map;
    }
    throw new IllegalArgumentException("Unsupported type: " + type.getName());
}

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From source file:info.donsun.core.utils.Values.java

/**
 * ????//w  w  w  . java  2s. c o  m
 * 
 * @param obj 
 * @param defaultValue null
 * @return ??
 */
public static double getDouble(Object obj, double defaultValue) {
    return NumberUtils.toDouble(getString(obj), defaultValue);
}

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

/**
 * Makes range object using values parsed from {@code rangeStr}.
 * <p>/*  ww w. j a va2 s  .c  om*/
 * If {@code rangeStr} has missing range bound values, default ones are set: lower
 * {@code positive ? 0 : -Double.MAX_VALUE}, upper {@code Double.MAX_VALUE}.
 * <p>
 * Range separator symbol is '{@value com.jkoolcloud.tnt4j.streams.utils.Range#RANGE_SEPARATOR}'.
 *
 * @param rangeStr
 *            range definition string to parse
 * @param positive
 *            {@code true} means range has only positive values, {@code} - range can have negative values.
 * @return double range parsed from range definition string
 * @throws Exception
 *             if range string can't be parsed
 * @see Range#parseRange(String, Pattern)
 */
public static DoubleRange getRange(String rangeStr, boolean positive) throws Exception {
    String[] rangeTokens = parseRange(rangeStr, positive ? D_PATTERN_POSITIVE : D_PATTERN);

    double from = NumberUtils.toDouble(rangeTokens[0], positive ? 0 : -Double.MAX_VALUE);
    double to = NumberUtils.toDouble(rangeTokens[1], Double.MAX_VALUE);

    return new DoubleRange(from, to);
}

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From source file:com.erudika.para.i18n.OXRCurrencyConverter.java

@Override
public Double convertCurrency(Number amount, String from, String to) {
    if (amount == null || StringUtils.isBlank(from) || StringUtils.isBlank(to)) {
        return 0.0;
    }/*from www.j  av a2s .  com*/
    Sysprop s = dao.read(FXRATES_KEY);
    if (s == null) {
        s = fetchFxRatesJSON();
    } else if ((Utils.timestamp() - s.getTimestamp()) > REFRESH_AFTER) {
        // lazy refresh fx rates
        Para.asyncExecute(new Runnable() {
            public void run() {
                fetchFxRatesJSON();
            }
        });
    }

    double ratio = 1.0;

    if (s.hasProperty(from) && s.hasProperty(to)) {
        Double f = NumberUtils.toDouble(s.getProperty(from).toString(), 1.0);
        Double t = NumberUtils.toDouble(s.getProperty(to).toString(), 1.0);
        ratio = t / f;
    }
    return amount.doubleValue() * ratio;
}

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From source file:net.gtaun.shoebill.util.config.AbstractConfiguration.java

@Override
public double getDouble(String path, double def) {
    Object obj = get(path);/*  www.  j a  v  a2s  . c om*/
    if (obj instanceof Double)
        return (Double) obj;
    return NumberUtils.toDouble(obj.toString(), def);
}

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From source file:com.tealcube.minecraft.bukkit.config.MasterConfiguration.java

public double getDouble(String key, double fallback) {
    if (settingMap == null || !settingMap.containsKey(key)) {
        return fallback;
    }/*www .  j a v  a  2s .c  o m*/
    Object val = settingMap.get(key);
    if (val instanceof Double) {
        return (Double) val;
    }
    if (val instanceof String) {
        return NumberUtils.toDouble((String) val, fallback);
    }
    return fallback;
}

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From source file:net.gtaun.shoebill.util.config.AbstractConfiguration.java

@Override
public List<Double> getDoubleList(String path, List<Double> def) {
    List<?> raw = getList(path);
    if (raw == null)
        return (def != null) ? def : new ArrayList<>();

    return raw.stream().map(o -> NumberUtils.toDouble(o.toString(), 0.0)).collect(Collectors.toList());
}

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From source file:com.mirth.connect.connectors.doc.DocumentWriter.java

@Override
public boolean checkProperties(ConnectorProperties properties, boolean highlight) {
    DocumentDispatcherProperties props = (DocumentDispatcherProperties) properties;

    boolean valid = true;

    if (!outputAttachmentRadioButton.isSelected() && props.getHost().length() == 0) {
        valid = false;/*from  ww w  . j  a v a  2 s  . co m*/
        if (highlight) {
            directoryField.setBackground(UIConstants.INVALID_COLOR);
        }
    }
    if (!outputAttachmentRadioButton.isSelected() && props.getOutputPattern().length() == 0) {
        valid = false;
        if (highlight) {
            fileNameField.setBackground(UIConstants.INVALID_COLOR);
        }
    }
    if (props.getTemplate().length() == 0) {
        valid = false;
        if (highlight) {
            templateTextArea.setBackground(UIConstants.INVALID_COLOR);
        }
    }
    if (props.isEncrypt()) {
        if (props.getPassword().length() == 0) {
            valid = false;
            if (highlight) {
                passwordField.setBackground(UIConstants.INVALID_COLOR);
            }
        }
    }
    if (StringUtils.isBlank(props.getPageWidth()) || NumberUtils.toDouble(props.getPageWidth(), 1) <= 0) {
        valid = false;
        if (highlight) {
            pageSizeWidthField.setBackground(UIConstants.INVALID_COLOR);
        }
    }
    if (StringUtils.isBlank(props.getPageHeight()) || NumberUtils.toDouble(props.getPageHeight(), 1) <= 0) {
        valid = false;
        if (highlight) {
            pageSizeHeightField.setBackground(UIConstants.INVALID_COLOR);
        }
    }

    return valid;
}

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From source file:io.wcm.sling.commons.request.RequestParam.java

/**
 * Returns a request parameter as double.
 * @param request Request.//  ww w.j  ava 2 s . c  om
 * @param param Parameter name.
 * @param defaultValue Default value.
 * @return Parameter value or default value if it does not exist or is not a number.
 */
public static double getDouble(ServletRequest request, String param, double defaultValue) {
    String value = request.getParameter(param);
    return NumberUtils.toDouble(value, defaultValue);
}

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From source file:ezbake.common.properties.EzProperties.java

/**
 * Get a property as a double, if the property doesn't exist or can't be converted then we return the default value
 *
 * @param propertyName is the name of the property we are looking for (the key)
 * @param defaultValue is the value to return if the key doesn't exist or the value can't be converted to a double
 *
 * @return either the properly parsed double or the default value if the key doesn't exist or can't be converted
 *///  ww w  .j av  a2s .c o m
public double getDouble(String propertyName, double defaultValue) {
    return NumberUtils.toDouble(getProperty(propertyName), defaultValue);
}

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