| /* |
| * 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.mina.integration.beans; |
| |
| import java.beans.PropertyEditor; |
| import java.util.regex.Pattern; |
| |
| /** |
| * A {@link PropertyEditor} which converts a {@link String} into |
| * a {@link Number} and vice versa. |
| * |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| */ |
| public class NumberEditor extends AbstractPropertyEditor { |
| private static final Pattern DECIMAL = Pattern.compile("[-+]?[0-9]*\\.?[0-9]*(?:[Ee][-+]?[0-9]+)?"); |
| |
| private static final Pattern HEXADECIMAL = Pattern.compile("0x[0-9a-fA-F]+"); |
| |
| private static final Pattern OCTET = Pattern.compile("0[0-9][0-9]*"); |
| |
| @Override |
| protected final String toText(Object value) { |
| return (value == null ? "" : value.toString()); |
| } |
| |
| @Override |
| protected final Object toValue(String text) throws IllegalArgumentException { |
| if (text.length() == 0) { |
| return defaultValue(); |
| } |
| |
| if (HEXADECIMAL.matcher(text).matches()) { |
| return toValue(text.substring(2), 16); |
| } |
| |
| if (OCTET.matcher(text).matches()) { |
| return toValue(text, 8); |
| } |
| |
| if (DECIMAL.matcher(text).matches()) { |
| return toValue(text, 10); |
| } |
| |
| throw new NumberFormatException("Not a number: " + text); |
| } |
| |
| protected Object toValue(String text, int radix) { |
| return Integer.parseInt(text, radix); |
| } |
| |
| @Override |
| protected Object defaultValue() { |
| return Integer.valueOf(0); |
| } |
| } |