| /* |
| * 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 org.apache.commons.beanutils2.locale.converters; |
| |
| import java.text.DecimalFormat; |
| import java.text.NumberFormat; |
| import java.text.ParseException; |
| import java.util.Locale; |
| |
| import org.apache.commons.beanutils2.locale.BaseLocaleConverter; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| |
| /** |
| * <p>Standard {@link org.apache.commons.beanutils2.locale.LocaleConverter} |
| * implementation that converts an incoming |
| * locale-sensitive String into a {@code java.lang.Number} object, |
| * optionally using a default value or throwing a |
| * {@link org.apache.commons.beanutils2.ConversionException} |
| * if a conversion error occurs.</p> |
| * |
| * @since 1.7 |
| */ |
| |
| public class DecimalLocaleConverter extends BaseLocaleConverter { |
| |
| |
| |
| |
| /** All logging goes through this logger */ |
| private final Log log = LogFactory.getLog(DecimalLocaleConverter.class); |
| |
| |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.locale.LocaleConverter} |
| * that will throw a {@link org.apache.commons.beanutils2.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 conversion. |
| * |
| */ |
| public DecimalLocaleConverter() { |
| |
| this(false); |
| } |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.locale.LocaleConverter} |
| * that will throw a {@link org.apache.commons.beanutils2.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 DecimalLocaleConverter(final boolean locPattern) { |
| |
| this(Locale.getDefault(), locPattern); |
| } |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.locale.LocaleConverter} |
| * that will throw a {@link org.apache.commons.beanutils2.ConversionException} |
| * if a conversion error occurs. An unlocalized pattern is used for the conversion. |
| * |
| * @param locale The locale |
| */ |
| public DecimalLocaleConverter(final Locale locale) { |
| |
| this(locale, false); |
| } |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.locale.LocaleConverter} |
| * that will throw a {@link org.apache.commons.beanutils2.ConversionException} |
| * if a conversion error occurs. |
| * |
| * @param locale The locale |
| * @param locPattern Indicate whether the pattern is localized or not |
| */ |
| public DecimalLocaleConverter(final Locale locale, final boolean locPattern) { |
| |
| this(locale, (String) null, locPattern); |
| } |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.locale.LocaleConverter} |
| * that will throw a {@link org.apache.commons.beanutils2.ConversionException} |
| * if a conversion error occurs. An unlocalized pattern is used for the conversion. |
| * |
| * @param locale The locale |
| * @param pattern The conversion pattern |
| */ |
| public DecimalLocaleConverter(final Locale locale, final String pattern) { |
| |
| this(locale, pattern, false); |
| } |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.locale.LocaleConverter} |
| * that will throw a {@link org.apache.commons.beanutils2.ConversionException} |
| * if a conversion error occurs. |
| * |
| * @param locale The locale |
| * @param pattern The conversion pattern |
| * @param locPattern Indicate whether the pattern is localized or not |
| */ |
| public DecimalLocaleConverter(final Locale locale, final String pattern, final boolean locPattern) { |
| |
| super(locale, pattern, locPattern); |
| } |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.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 conversion. |
| * |
| * @param defaultValue The default value to be returned |
| */ |
| public DecimalLocaleConverter(final Object defaultValue) { |
| |
| this(defaultValue, false); |
| } |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.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 DecimalLocaleConverter(final Object defaultValue, final boolean locPattern) { |
| |
| this(defaultValue, Locale.getDefault(), locPattern); |
| } |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.locale.LocaleConverter} |
| * that will return the specified default value |
| * if a conversion error occurs. An unlocalized pattern is used for the conversion. |
| * |
| * @param defaultValue The default value to be returned |
| * @param locale The locale |
| */ |
| public DecimalLocaleConverter(final Object defaultValue, final Locale locale) { |
| |
| this(defaultValue, locale, false); |
| } |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.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 DecimalLocaleConverter(final Object defaultValue, final Locale locale, final boolean locPattern) { |
| |
| this(defaultValue, locale, null, locPattern); |
| } |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.locale.LocaleConverter} |
| * that will return the specified default value |
| * if a conversion error occurs. An unlocalized pattern is used for the conversion. |
| * |
| * @param defaultValue The default value to be returned |
| * @param locale The locale |
| * @param pattern The conversion pattern |
| */ |
| public DecimalLocaleConverter(final Object defaultValue, final Locale locale, final String pattern) { |
| |
| this(defaultValue, locale, pattern, false); |
| } |
| |
| /** |
| * Create a {@link org.apache.commons.beanutils2.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 conversion pattern |
| * @param locPattern Indicate whether the pattern is localized or not |
| */ |
| public DecimalLocaleConverter(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. |
| * |
| * @param value The input object to be converted |
| * @param pattern The pattern is used for the conversion |
| * @return The converted value |
| * |
| * @throws org.apache.commons.beanutils2.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 { |
| |
| if (value instanceof Number) { |
| return value; |
| } |
| |
| // Note that despite the ambiguous "getInstance" name, and despite the |
| // fact that objects returned from this method have the same toString |
| // representation, each call to getInstance actually returns a new |
| // object. |
| final DecimalFormat formatter = (DecimalFormat) NumberFormat.getInstance(locale); |
| |
| // if some constructors default pattern to null, it makes only sense |
| // to handle null pattern gracefully |
| if (pattern != null) { |
| if (locPattern) { |
| formatter.applyLocalizedPattern(pattern); |
| } else { |
| formatter.applyPattern(pattern); |
| } |
| } else { |
| log.debug("No pattern provided, using default."); |
| } |
| |
| return formatter.parse((String) value); |
| } |
| } |