Example usage for org.apache.commons.configuration2.convert DefaultConversionHandler INSTANCE

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In this page you can find the example usage for org.apache.commons.configuration2.convert DefaultConversionHandler INSTANCE.

Prototype

DefaultConversionHandler INSTANCE

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A default instance of this class.

Usage

From source file:net.yck.wkrdb.common.shared.PropertyConverter.java

/**
 * Performs a data type conversion from the specified value object to the
 * given target data class. If additional information is required for this
 * conversion, it is obtained from {@code DefaultConversionHandler.INSTANCE}
 * object. If the class is a primitive type (Integer.TYPE, Boolean.TYPE,
 * etc), the value returned will use the wrapper type (Integer.class,
 * Boolean.class, etc)./* w  w  w .  j  a  v  a  2 s. c o  m*/
 *
 * @param cls
 *            the target class of the converted value
 * @param value
 *            the value to convert
 * @return the converted value
 * @throws ConversionException
 *             if the value is not compatible with the requested type
 */
public static Object to(Class<?> cls, Object value) throws ConversionException {
    if (cls.isInstance(value)) {
        return value; // no conversion needed
    }

    if (String.class.equals(cls)) {
        return String.valueOf(value);
    }
    if (Boolean.class.equals(cls) || Boolean.TYPE.equals(cls)) {
        return toBoolean(value);
    } else if (Character.class.equals(cls) || Character.TYPE.equals(cls)) {
        return toCharacter(value);
    } else if (Number.class.isAssignableFrom(cls) || cls.isPrimitive()) {
        if (Integer.class.equals(cls) || Integer.TYPE.equals(cls)) {
            return toInteger(value);
        } else if (Long.class.equals(cls) || Long.TYPE.equals(cls)) {
            return toLong(value);
        } else if (Byte.class.equals(cls) || Byte.TYPE.equals(cls)) {
            return toByte(value);
        } else if (Short.class.equals(cls) || Short.TYPE.equals(cls)) {
            return toShort(value);
        } else if (Float.class.equals(cls) || Float.TYPE.equals(cls)) {
            return toFloat(value);
        } else if (Double.class.equals(cls) || Double.TYPE.equals(cls)) {
            return toDouble(value);
        } else if (BigInteger.class.equals(cls)) {
            return toBigInteger(value);
        } else if (BigDecimal.class.equals(cls)) {
            return toBigDecimal(value);
        }
    } else if (Date.class.equals(cls)) {
        return toDate(value, DefaultConversionHandler.INSTANCE.getDateFormat());
    } else if (Calendar.class.equals(cls)) {
        return toCalendar(value, DefaultConversionHandler.INSTANCE.getDateFormat());
    } else if (URL.class.equals(cls)) {
        return toURL(value);
    } else if (Locale.class.equals(cls)) {
        return toLocale(value);
    } else if (isEnum(cls)) {
        return convertToEnum(cls, value);
    } else if (Color.class.equals(cls)) {
        return toColor(value);
    } else if (cls.getName().equals(INTERNET_ADDRESS_CLASSNAME)) {
        return toInternetAddress(value);
    } else if (InetAddress.class.isAssignableFrom(cls)) {
        return toInetAddress(value);
    }

    throw new ConversionException("The value '" + value + "' (" + value.getClass() + ")"
            + " can't be converted to a " + cls.getName() + " object");
}

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