| /* |
| * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/client/methods/HttpOptions.java $ |
| * $Revision: 664505 $ |
| * $Date: 2008-06-08 06:21:20 -0700 (Sun, 08 Jun 2008) $ |
| * |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.http.client.methods; |
| |
| import java.net.URI; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.http.Header; |
| import org.apache.http.HeaderElement; |
| import org.apache.http.HeaderIterator; |
| import org.apache.http.HttpResponse; |
| |
| /** |
| * HTTP OPTIONS method. |
| * <p> |
| * The HTTP OPTIONS method is defined in section 9.2 of |
| * <a href="http://www.ietf.org/rfc/rfc2616.txt">RFC2616</a>: |
| * <blockquote> |
| * The OPTIONS method represents a request for information about the |
| * communication options available on the request/response chain |
| * identified by the Request-URI. This method allows the client to |
| * determine the options and/or requirements associated with a resource, |
| * or the capabilities of a server, without implying a resource action |
| * or initiating a resource retrieval. |
| * </blockquote> |
| * </p> |
| * |
| * @version $Revision: 664505 $ |
| * |
| * @since 4.0 |
| * |
| * @deprecated Please use {@link java.net.URL#openConnection} instead. |
| * Please visit <a href="http://android-developers.blogspot.com/2011/09/androids-http-clients.html">this webpage</a> |
| * for further details. |
| */ |
| @Deprecated |
| public class HttpOptions extends HttpRequestBase { |
| |
| public final static String METHOD_NAME = "OPTIONS"; |
| |
| public HttpOptions() { |
| super(); |
| } |
| |
| public HttpOptions(final URI uri) { |
| super(); |
| setURI(uri); |
| } |
| |
| /** |
| * @throws IllegalArgumentException if the uri is invalid. |
| */ |
| public HttpOptions(final String uri) { |
| super(); |
| setURI(URI.create(uri)); |
| } |
| |
| @Override |
| public String getMethod() { |
| return METHOD_NAME; |
| } |
| |
| public Set<String> getAllowedMethods(final HttpResponse response) { |
| if (response == null) { |
| throw new IllegalArgumentException("HTTP response may not be null"); |
| } |
| |
| HeaderIterator it = response.headerIterator("Allow"); |
| Set<String> methods = new HashSet<String>(); |
| while (it.hasNext()) { |
| Header header = it.nextHeader(); |
| HeaderElement[] elements = header.getElements(); |
| for (HeaderElement element : elements) { |
| methods.add(element.getName()); |
| } |
| } |
| return methods; |
| } |
| |
| } |