    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
    018package org.apache.commons.beanutils;
    019
    020import java.lang.reflect.InvocationTargetException;
    021
    022/**
    023 * <p>Implements <code>DynaBean</code> to wrap a standard JavaBean
    024 * instance, so that DynaBean APIs can be used to access its properties,
    025 * though this implementation allows type conversion to occur when properties are set.
    026 * This means that (say) Strings can be passed in as values in setter methods and
    027 * this DynaBean will convert them to the correct primitive data types.</p>
    028 *
    029 * <p><strong>IMPLEMENTATION NOTE</strong> - This implementation does not
    030 * support the <code>contains()</code> and <code>remove()</code> methods.</p>
    031 *
    032 */
    033
    034public class ConvertingWrapDynaBean extends WrapDynaBean {
    035
    036    private static final long serialVersionUID = 1L;
    037
    038    /**
    039     * Construct a new <code>DynaBean</code> associated with the specified
    040     * JavaBean instance.
    041     *
    042     * @param instance JavaBean instance to be wrapped
    043     */
    044    public ConvertingWrapDynaBean(final Object instance) {
    045
    046        super(instance);
    047
    048    }
    049
    050    /**
    051     * Set the value of the property with the specified name
    052     * performing any type conversions if necessary. So this method
    053     * can accept String values for primitive numeric data types for example.
    054     *
    055     * @param name Name of the property whose value is to be set
    056     * @param value Value to which this property is to be set
    057     * @throws IllegalArgumentException if there are any problems
    058     *            copying the property.
    059     */
    060    @Override
    061    public void set(final String name, final Object value) {
    062        try {
    063            BeanUtils.copyProperty(instance, name, value);
    064        } catch (final InvocationTargetException ite) {
    065            final Throwable cause = ite.getTargetException();
    066            throw new IllegalArgumentException("Error setting property '" + name + "' nested exception - " + cause);
    067        } catch (final Throwable t) {
    068            throw new IllegalArgumentException("Error setting property '" + name + "', exception - " + t, t);
    069        }
    070    }
    071}