    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.commons.beanutils.converters;
    018
    019    import java.net.URL;
    020
    021    /**
    022     * {@link org.apache.commons.beanutils.Converter} implementaion that handles conversion
    023     * to and from <b>java.net.URL</b> objects.
    024     * <p>
    025     * Can be configured to either return a <i>default value</i> or throw a
    026     * <code>ConversionException</code> if a conversion error occurs.
    027     *
    028     * @version $Revision: 690380 $ $Date: 2008-08-29 21:04:38 +0100 (Fri, 29 Aug 2008) $
    029     * @since 1.3
    030     */
    031    public final class URLConverter extends AbstractConverter {
    032
    033        /**
    034         * Construct a <b>java.net.URL</b> <i>Converter</i> that throws
    035         * a <code>ConversionException</code> if an error occurs.
    036         */
    037        public URLConverter() {
    038            super();
    039        }
    040
    041        /**
    042         * Construct a <b>java.net.URL</b> <i>Converter</i> that returns
    043         * a default value if an error occurs.
    044         *
    045         * @param defaultValue The default value to be returned
    046         * if the value to be converted is missing or an error
    047         * occurs converting the value.
    048         */
    049        public URLConverter(Object defaultValue) {
    050            super(defaultValue);
    051        }
    052
    053        /**
    054         * Return the default type this <code>Converter</code> handles.
    055         *
    056         * @return The default type this <code>Converter</code> handles.
    057         * @since 1.8.0
    058         */
    059        protected Class getDefaultType() {
    060            return URL.class;
    061        }
    062
    063        /**
    064         * <p>Convert a java.net.URL or object into a String.</p>
    065         *
    066         * @param type Data type to which this value should be converted.
    067         * @param value The input value to be converted.
    068         * @return The converted value.
    069         * @throws Throwable if an error occurs converting to the specified type
    070         * @since 1.8.0
    071         */
    072        protected Object convertToType(Class type, Object value) throws Throwable {
    073            return new URL(value.toString());
    074        }
    075
    076    }