| /* |
| * 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 libcore.net.url; |
| |
| import java.io.IOException; |
| import java.net.Proxy; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import java.net.URLStreamHandler; |
| |
| public class FtpHandler extends URLStreamHandler { |
| /** |
| * Open a URLConnection on the given URL. |
| */ |
| @Override |
| protected URLConnection openConnection(URL u) throws IOException { |
| return new FtpURLConnection(u); |
| } |
| |
| /** |
| * Returns a connection, which is established via the <code>proxy</code>, |
| * to the FTP server specified by this <code>URL</code>. If |
| * <code>proxy</code> is DIRECT type, the connection is made in normal |
| * way. |
| * |
| * @param url |
| * the URL which the connection is pointing to |
| * @param proxy |
| * the proxy which is used to make the connection |
| * @return a connection to the resource pointed by this url. |
| * |
| * @throws IOException |
| * if this handler fails to establish a connection. |
| * @throws IllegalArgumentException |
| * if any argument is null or the type of proxy is wrong. |
| * @throws UnsupportedOperationException |
| * if the protocol handler doesn't support this method. |
| */ |
| @Override |
| protected URLConnection openConnection(URL url, Proxy proxy) throws IOException { |
| if (url == null || proxy == null) { |
| throw new IllegalArgumentException("url == null || proxy == null"); |
| } |
| return new FtpURLConnection(url, proxy); |
| } |
| |
| /** |
| * Return the default port. |
| */ |
| @Override |
| protected int getDefaultPort() { |
| return 21; |
| } |
| } |