001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.xbean.propertyeditor; 018 019 import java.lang.reflect.Method; 020 021 /** 022 * @version $Rev$ $Date$ 023 */ 024 public class EnumConverter extends AbstractConverter { 025 026 public EnumConverter(Class type) { 027 super(type); 028 } 029 030 protected Object toObjectImpl(String text) { 031 Class type = getType(); 032 033 try { 034 return Enum.valueOf(type, text); 035 } catch (Exception cause) { 036 try { 037 int index = Integer.parseInt(text); 038 Method method = type.getMethod("values"); 039 Object[] values = (Object[]) method.invoke(null); 040 return values[index]; 041 } catch (NumberFormatException e) { 042 } catch (Exception e) { 043 cause = e; 044 } 045 046 throw new PropertyEditorException("Value \"" + text + "\" cannot be converted to enum type " + type.getName(), cause); 047 } 048 } 049 }