/*******************************************************************************

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License.  You may obtain a copy of the License at

  *

  * http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied.  See the License for the

  * specific language governing permissions and limitations

  * under the License.

  *******************************************************************************/

 package org.apache.commons.convert;

 import java.io.IOException;

 import java.net.InetAddress;

 import java.net.MalformedURLException;

 import java.net.URI;

 import java.net.URISyntaxException;

 import java.net.URL;

 /** java.net Converter classes. */

 public class NetConverters implements ConverterLoader {

     public void loadConverters() {

         Converters.loadContainedConverters(NetConverters.class);

         Converters.registerConverter(new GenericToStringConverter<URI>(URI.class));

         Converters.registerConverter(new GenericToStringConverter<URL>(URL.class));

         Converters.registerConverter(new GenericSingletonToList<InetAddress>(InetAddress.class));

         Converters.registerConverter(new GenericSingletonToList<URI>(URI.class));

         Converters.registerConverter(new GenericSingletonToList<URL>(URL.class));

         Converters.registerConverter(new GenericSingletonToSet<InetAddress>(InetAddress.class));

         Converters.registerConverter(new GenericSingletonToSet<URI>(URI.class));

         Converters.registerConverter(new GenericSingletonToSet<URL>(URL.class));

     }

     /**

      * An object that converts an <code>InetAddress</code> to a

      * <code>String</code>.

      */

     public static class InetAddressToString extends AbstractConverter<InetAddress, String> {

         public InetAddressToString() {

             super(InetAddress.class, String.class);

         }

         public String convert(InetAddress obj) throws ConversionException {

             String hostName = obj.getHostName();

             if (hostName != null) return hostName;

             return obj.getHostAddress();

         }

     }

     /**

      * An object that converts a <code>String</code> to an

      * <code>InetAddress</code>.

      */

     public static class StringToInetAddress extends AbstractConverter<String, InetAddress> {

         public StringToInetAddress() {

             super(String.class, InetAddress.class);

         }

         public InetAddress convert(String obj) throws ConversionException {

             try {

                 return InetAddress.getByName(obj);

             } catch (IOException e) {

                 throw (ConversionException) new ConversionException(e.getMessage()).initCause(e);

             }

         }

     }

     /**

      * An object that converts a <code>String</code> to a

      * <code>URI</code>.

      */

     public static class StringToURI extends AbstractConverter<String, URI> {

         public StringToURI() {

             super(String.class, URI.class);

         }

         public URI convert(String obj) throws ConversionException {

             try {

                 return new URI(obj);

             } catch (URISyntaxException e) {

                 throw (ConversionException) new ConversionException(e.getMessage()).initCause(e);

             }

         }

     }

     /**

      * An object that converts a <code>String</code> to a

      * <code>URL</code>.

      */

     public static class StringToURL extends AbstractConverter<String, URL> {

         public StringToURL() {

             super(String.class, URL.class);

         }

         public URL convert(String obj) throws ConversionException {

             try {

                 return new URL(obj);

             } catch (MalformedURLException e) {

                 throw (ConversionException) new ConversionException(e.getMessage()).initCause(e);

             }

         }

     }

     /**

      * An object that converts a <code>URI</code> to a

      * <code>URL</code>.

      */

     public static class URIToURL extends AbstractConverter<URI, URL> {

         public URIToURL() {

             super(URI.class, URL.class);

         }

         public URL convert(URI obj) throws ConversionException {

             try {

                 return obj.toURL();

             } catch (MalformedURLException e) {

                 throw (ConversionException) new ConversionException(e.getMessage()).initCause(e);

             }

         }

     }

     /**

      * An object that converts a <code>URL</code> to a

      * <code>URI</code>.

      */

     public static class URLToURI extends AbstractConverter<URL, URI> {

         public URLToURI() {

             super(URL.class, URI.class);

         }

         public URI convert(URL obj) throws ConversionException {

             try {

                 return obj.toURI();

             } catch (URISyntaxException e) {

                 throw (ConversionException) new ConversionException(e.getMessage()).initCause(e);

             }

         }

     }

 }