001/* 002 * Copyright 2002-2012 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.beans.propertyeditors; 018 019import java.beans.PropertyEditorSupport; 020import java.nio.charset.Charset; 021 022import org.springframework.util.StringUtils; 023 024/** 025 * Editor for {@code java.nio.charset.Charset}, translating charset 026 * String representations into Charset objects and back. 027 * 028 * <p>Expects the same syntax as Charset's {@link java.nio.charset.Charset#name()}, 029 * e.g. {@code UTF-8}, {@code ISO-8859-16}, etc. 030 * 031 * @author Arjen Poutsma 032 * @since 2.5.4 033 * @see Charset 034 */ 035public class CharsetEditor extends PropertyEditorSupport { 036 037 @Override 038 public void setAsText(String text) throws IllegalArgumentException { 039 if (StringUtils.hasText(text)) { 040 setValue(Charset.forName(text)); 041 } 042 else { 043 setValue(null); 044 } 045 } 046 047 @Override 048 public String getAsText() { 049 Charset value = (Charset) getValue(); 050 return (value != null ? value.name() : ""); 051 } 052 053}