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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.feilong.lib.beanutils.locale.converters;
import java.text.ParseException;
import java.util.Locale;
import com.feilong.lib.beanutils.ConversionException;
/**
*
* Standard {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* implementation that converts an incoming
* locale-sensitive String into a java.math.BigDecimal object,
* optionally using a default value or throwing a
* {@link com.feilong.lib.beanutils.ConversionException}
* if a conversion error occurs.
*
*
* @version $Id$
*/
public class FloatLocaleConverter extends DecimalLocaleConverter{
// ----------------------------------------------------------- Constructors
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will throw a {@link com.feilong.lib.beanutils.ConversionException}
* if a conversion error occurs. The locale is the default locale for
* this instance of the Java Virtual Machine and an unlocalized pattern is used
* for the convertion.
*
*/
public FloatLocaleConverter(){
this(false);
}
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will throw a {@link com.feilong.lib.beanutils.ConversionException}
* if a conversion error occurs. The locale is the default locale for
* this instance of the Java Virtual Machine.
*
* @param locPattern
* Indicate whether the pattern is localized or not
*/
public FloatLocaleConverter(final boolean locPattern){
this(Locale.getDefault(), locPattern);
}
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will throw a {@link com.feilong.lib.beanutils.ConversionException}
* if a conversion error occurs. An unlocalized pattern is used for the convertion.
*
* @param locale
* The locale
*/
public FloatLocaleConverter(final Locale locale){
this(locale, false);
}
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will throw a {@link com.feilong.lib.beanutils.ConversionException}
* if a conversion error occurs.
*
* @param locale
* The locale
* @param locPattern
* Indicate whether the pattern is localized or not
*/
public FloatLocaleConverter(final Locale locale, final boolean locPattern){
this(locale, (String) null, locPattern);
}
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will throw a {@link com.feilong.lib.beanutils.ConversionException}
* if a conversion error occurs. An unlocalized pattern is used for the convertion.
*
* @param locale
* The locale
* @param pattern
* The convertion pattern
*/
public FloatLocaleConverter(final Locale locale, final String pattern){
this(locale, pattern, false);
}
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will throw a {@link com.feilong.lib.beanutils.ConversionException}
* if a conversion error occurs.
*
* @param locale
* The locale
* @param pattern
* The convertion pattern
* @param locPattern
* Indicate whether the pattern is localized or not
*/
public FloatLocaleConverter(final Locale locale, final String pattern, final boolean locPattern){
super(locale, pattern, locPattern);
}
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will return the specified default value
* if a conversion error occurs. The locale is the default locale for
* this instance of the Java Virtual Machine and an unlocalized pattern is used
* for the convertion.
*
* @param defaultValue
* The default value to be returned
*/
public FloatLocaleConverter(final Object defaultValue){
this(defaultValue, false);
}
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will return the specified default value
* if a conversion error occurs. The locale is the default locale for
* this instance of the Java Virtual Machine.
*
* @param defaultValue
* The default value to be returned
* @param locPattern
* Indicate whether the pattern is localized or not
*/
public FloatLocaleConverter(final Object defaultValue, final boolean locPattern){
this(defaultValue, Locale.getDefault(), locPattern);
}
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will return the specified default value
* if a conversion error occurs. An unlocalized pattern is used for the convertion.
*
* @param defaultValue
* The default value to be returned
* @param locale
* The locale
*/
public FloatLocaleConverter(final Object defaultValue, final Locale locale){
this(defaultValue, locale, false);
}
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will return the specified default value
* if a conversion error occurs.
*
* @param defaultValue
* The default value to be returned
* @param locale
* The locale
* @param locPattern
* Indicate whether the pattern is localized or not
*/
public FloatLocaleConverter(final Object defaultValue, final Locale locale, final boolean locPattern){
this(defaultValue, locale, null, locPattern);
}
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will return the specified default value
* if a conversion error occurs. An unlocalized pattern is used for the convertion.
*
* @param defaultValue
* The default value to be returned
* @param locale
* The locale
* @param pattern
* The convertion pattern
*/
public FloatLocaleConverter(final Object defaultValue, final Locale locale, final String pattern){
this(defaultValue, locale, pattern, false);
}
/**
* Create a {@link com.feilong.lib.beanutils.locale.LocaleConverter}
* that will return the specified default value
* if a conversion error occurs.
*
* @param defaultValue
* The default value to be returned
* @param locale
* The locale
* @param pattern
* The convertion pattern
* @param locPattern
* Indicate whether the pattern is localized or not
*/
public FloatLocaleConverter(final Object defaultValue, final Locale locale, final String pattern, final boolean locPattern){
super(defaultValue, locale, pattern, locPattern);
}
/**
* Convert the specified locale-sensitive input object into an output object of the
* specified type. This method will return Float value or throw exception if value
* can not be stored in the Float.
*
* @param value
* The input object to be converted
* @param pattern
* The pattern is used for the convertion
* @return The converted value
*
* @throws ConversionException
* if conversion cannot be performed
* successfully
* @throws ParseException
* if an error occurs parsing a String to a Number
*/
@Override
protected Object parse(final Object value,final String pattern) throws ParseException{
final Number parsed = (Number) super.parse(value, pattern);
final double doubleValue = parsed.doubleValue();
final double posDouble = (doubleValue >= 0) ? doubleValue : (doubleValue * -1);
if (posDouble != 0 && (posDouble < Float.MIN_VALUE || posDouble > Float.MAX_VALUE)){
throw new ConversionException("Supplied number is not of type Float: " + parsed);
}
return new Float(parsed.floatValue()); // unlike superclass it returns Float type
}
}