001/* -*- mode: Java; c-basic-offset: 2; indent-tabs-mode: nil; coding: utf-8-unix -*- 002 * 003 * Copyright © 2020 microBean™. 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * 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 014 * implied. See the License for the specific language governing 015 * permissions and limitations under the License. 016 */ 017package org.microbean.settings.converter; 018 019import java.net.MalformedURLException; 020import java.net.URI; 021import java.net.URL; 022import java.net.URISyntaxException; 023 024import javax.enterprise.context.ApplicationScoped; 025 026import org.microbean.settings.Converter; 027import org.microbean.settings.Value; 028 029@ApplicationScoped 030public class URLConverter implements Converter<URL> { 031 032 private static final long serialVersionUID = 1L; 033 034 public URLConverter() { 035 super(); 036 } 037 038 @Override 039 public URL convert(final Value value) { 040 final URL returnValue; 041 if (value == null) { 042 returnValue = null; 043 } else { 044 final String stringValue = value.get(); 045 if (stringValue == null) { 046 returnValue = null; 047 } else { 048 URL result = null; 049 try { 050 result = new URI(stringValue).toURL(); 051 } catch (final MalformedURLException | URISyntaxException exception) { 052 throw new IllegalArgumentException(stringValue, exception); 053 } finally { 054 returnValue = result; 055 } 056 } 057 } 058 return returnValue; 059 } 060 061}