| /* |
| * 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.tamaya.types.internal.converters; |
| |
| import org.apache.tamaya.types.spi.ConversionContext; |
| import org.apache.tamaya.types.spi.PropertyConverter; |
| |
| import java.util.Currency; |
| import java.util.Locale; |
| import java.util.Objects; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| /** |
| * Converter, converting from String to Currency, the supported format is one of the following: |
| * <ul> |
| * <li>CHF (currency code)</li> |
| * <li>123 (numeric currency value > |
| * = 0)</li> |
| * <li>DE (ISO 2-digit country)</li> |
| * <li>de_DE, de_DE_123 (Locale)</li> |
| * </ul> |
| */ |
| public class CurrencyConverter implements PropertyConverter<Currency> { |
| |
| private static final Logger LOG = Logger.getLogger(CurrencyConverter.class.getName()); |
| |
| @Override |
| public Currency convert(String value, ConversionContext context) { |
| context.addSupportedFormats(getClass(), "<currencyCode>, using Locale.ENGLISH", "<numericValue>", "<locale>"); |
| String trimmed = Objects.requireNonNull(value).trim(); |
| try { |
| return Currency.getInstance(trimmed.toUpperCase(Locale.ENGLISH)); |
| } catch (Exception e) { |
| LOG.log(Level.FINEST, "Not a valid textual currency code: " + trimmed + ", checking for numeric...", e); |
| } |
| try { |
| // Check for numeric code |
| Integer numCode = Integer.parseInt(trimmed); |
| for (Currency currency : Currency.getAvailableCurrencies()) { |
| if (currency.getNumericCode() == numCode) { |
| return currency; |
| } |
| } |
| } catch (Exception e) { |
| LOG.log(Level.FINEST, "Not a valid numeric currency code: " + trimmed + ", checking for locale...", e); |
| } |
| try { |
| // Check for numeric code |
| String[] parts = trimmed.split("\\_"); |
| Locale locale; |
| switch (parts.length) { |
| case 1: |
| locale = new Locale("", parts[0]); |
| break; |
| case 2: |
| locale = new Locale(parts[0], parts[1]); |
| break; |
| case 3: |
| locale = new Locale(parts[0], parts[1], parts[2]); |
| break; |
| default: |
| locale = null; |
| } |
| if (locale != null) { |
| return Currency.getInstance(locale); |
| } |
| LOG.finest("Not a valid currency: " + trimmed + ", giving up..."); |
| } catch (Exception e) { |
| LOG.log(Level.FINEST, "Not a valid country locale for currency: " + trimmed + ", giving up...", e); |
| } |
| return null; |
| } |
| } |