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 */
017package org.apache.xbean.propertyeditor;
018
019import java.lang.reflect.Constructor;
020
021public class ConstructorConverter extends AbstractConverter {
022    private final Constructor constructor;
023
024    public ConstructorConverter(final Class type, final Constructor constructor) {
025        super(type);
026        this.constructor = constructor;
027    }
028
029    @Override
030    protected Object toObjectImpl(final String text) {
031        try {
032            return constructor.newInstance(text);
033        } catch (final Exception e) {
034            final String message = String.format("Cannot convert string '%s' to %s.", text, super.getType());
035            throw new PropertyEditorException(message, e);
036        }
037    }
038
039    public static ConstructorConverter editor(final Class type) {
040        try {
041            final Constructor<?> constructor = type.getConstructor(String.class);
042            return new ConstructorConverter(type, constructor);
043        } catch (final NoSuchMethodException e) {
044            // fine
045        }
046        return null;
047    }
048}