Example usage for org.apache.commons.configuration2.ex ConversionException ConversionException

Introduction

In this page you can find the example usage for org.apache.commons.configuration2.ex ConversionException ConversionException.

Prototype

public ConversionException(final String message, final Throwable cause) 

Source Link

Document

Constructs a new ConversionException with specified detail message and nested Throwable .

Usage

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

/**
 * Tries to convert the specified object into a number object. This method
 * is used by the conversion methods for number types. Note that the return
 * value is not in always of the specified target class, but only if a new
 * object has to be created./*from  w ww. j  a v  a 2 s. com*/
 *
 * @param value
 *            the value to be converted (must not be <b>null</b>)
 * @param targetClass
 *            the target class of the conversion (must be derived from
 *            {@code java.lang.Number})
 * @return the converted number
 * @throws ConversionException
 *             if the object cannot be converted
 */
static Number toNumber(Object value, Class<?> targetClass) throws ConversionException {
    if (value instanceof Number) {
        return (Number) value;
    } else {
        String str = value.toString();
        if (str.startsWith(HEX_PREFIX)) {
            try {
                return new BigInteger(str.substring(HEX_PREFIX.length()), HEX_RADIX);
            } catch (NumberFormatException nex) {
                throw new ConversionException(
                        "Could not convert " + str + " to " + targetClass.getName() + "! Invalid hex number.",
                        nex);
            }
        }

        if (str.startsWith(BIN_PREFIX)) {
            try {
                return new BigInteger(str.substring(BIN_PREFIX.length()), BIN_RADIX);
            } catch (NumberFormatException nex) {
                throw new ConversionException("Could not convert " + str + " to " + targetClass.getName()
                        + "! Invalid binary number.", nex);
            }
        }

        try {
            Constructor<?> constr = targetClass.getConstructor(CONSTR_ARGS);
            return (Number) constr.newInstance(str);
        } catch (InvocationTargetException itex) {
            throw new ConversionException("Could not convert " + str + " to " + targetClass.getName(),
                    itex.getTargetException());
        } catch (Exception ex) {
            // Treat all possible exceptions the same way
            throw new ConversionException(
                    "Conversion error when trying to convert " + str + " to " + targetClass.getName(), ex);
        }
    }
}

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

/**
 * Convert the specified object into an URL.
 *
 * @param value/*www . j a va2s .c  o m*/
 *            the value to convert
 * @return the converted value
 * @throws ConversionException
 *             thrown if the value cannot be converted to an URL
 */
public static URL toURL(Object value) throws ConversionException {
    if (value instanceof URL) {
        return (URL) value;
    } else if (value instanceof String) {
        try {
            return new URL((String) value);
        } catch (MalformedURLException e) {
            throw new ConversionException("The value " + value + " can't be converted to an URL", e);
        }
    } else {
        throw new ConversionException("The value " + value + " can't be converted to an URL");
    }
}

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

/**
 * Convert the specified value into an internet address.
 *
 * @param value//from ww  w.j  av  a  2s .  c o  m
 *            the value to convert
 * @return the converted value
 * @throws ConversionException
 *             thrown if the value cannot be converted to a InetAddress
 *
 * @since 1.5
 */
static InetAddress toInetAddress(Object value) throws ConversionException {
    if (value instanceof InetAddress) {
        return (InetAddress) value;
    } else if (value instanceof String) {
        try {
            return InetAddress.getByName((String) value);
        } catch (UnknownHostException e) {
            throw new ConversionException("The value " + value + " can't be converted to a InetAddress", e);
        }
    } else {
        throw new ConversionException("The value " + value + " can't be converted to a InetAddress");
    }
}

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

/**
 * Convert the specified value into an email address.
 *
 * @param value/*  www. ja  va 2 s.  c  o m*/
 *            the value to convert
 * @return the converted value
 * @throws ConversionException
 *             thrown if the value cannot be converted to an email address
 *
 * @since 1.5
 */
static Object toInternetAddress(Object value) throws ConversionException {
    if (value.getClass().getName().equals(INTERNET_ADDRESS_CLASSNAME)) {
        return value;
    } else if (value instanceof String) {
        try {
            Constructor<?> ctor = Class.forName(INTERNET_ADDRESS_CLASSNAME).getConstructor(String.class);
            return ctor.newInstance(value);
        } catch (Exception e) {
            throw new ConversionException("The value " + value + " can't be converted to a InternetAddress", e);
        }
    } else {
        throw new ConversionException("The value " + value + " can't be converted to a InternetAddress");
    }
}

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

/**
 * Convert the specified object into a Date.
 *
 * @param value//w ww.j  ava 2  s  .  c om
 *            the value to convert
 * @param format
 *            the DateFormat pattern to parse String values
 * @return the converted value
 * @throws ConversionException
 *             thrown if the value cannot be converted to a Calendar
 */
public static Date toDate(Object value, String format) throws ConversionException {
    if (value instanceof Date) {
        return (Date) value;
    } else if (value instanceof Calendar) {
        return ((Calendar) value).getTime();
    } else if (value instanceof String) {
        try {
            return new SimpleDateFormat(format).parse((String) value);
        } catch (ParseException e) {
            throw new ConversionException("The value " + value + " can't be converted to a Date", e);
        }
    } else {
        throw new ConversionException("The value " + value + " can't be converted to a Date");
    }
}

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

/**
 * Convert the specified object into a Calendar.
 *
 * @param value//  w  w w  .  j  a va2 s  .com
 *            the value to convert
 * @param format
 *            the DateFormat pattern to parse String values
 * @return the converted value
 * @throws ConversionException
 *             thrown if the value cannot be converted to a Calendar
 */
public static Calendar toCalendar(Object value, String format) throws ConversionException {
    if (value instanceof Calendar) {
        return (Calendar) value;
    } else if (value instanceof Date) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime((Date) value);
        return calendar;
    } else if (value instanceof String) {
        try {
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(new SimpleDateFormat(format).parse((String) value));
            return calendar;
        } catch (ParseException e) {
            throw new ConversionException("The value " + value + " can't be converted to a Calendar", e);
        }
    } else {
        throw new ConversionException("The value " + value + " can't be converted to a Calendar");
    }
}

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