1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.http.client.methods;
29
30 import java.net.URI;
31
32 /**
33 * HTTP HEAD method.
34 * <p>
35 * The HTTP HEAD method is defined in section 9.4 of
36 * <a href="http://www.ietf.org/rfc/rfc2616.txt">RFC2616</a>:
37 * </p>
38 * <blockquote>
39 * The HEAD method is identical to GET except that the server MUST NOT
40 * return a message-body in the response. The metainformation contained
41 * in the HTTP headers in response to a HEAD request SHOULD be identical
42 * to the information sent in response to a GET request. This method can
43 * be used for obtaining metainformation about the entity implied by the
44 * request without transferring the entity-body itself. This method is
45 * often used for testing hypertext links for validity, accessibility,
46 * and recent modification.
47 * </blockquote>
48 *
49 * @since 4.0
50 */
51 public class HttpHead extends HttpRequestBase {
52
53 public final static String METHOD_NAME = "HEAD";
54
55 public HttpHead() {
56 super();
57 }
58
59 public HttpHead(final URI uri) {
60 super();
61 setURI(uri);
62 }
63
64 /**
65 * @throws IllegalArgumentException if the uri is invalid.
66 */
67 public HttpHead(final String uri) {
68 super();
69 setURI(URI.create(uri));
70 }
71
72 @Override
73 public String getMethod() {
74 return METHOD_NAME;
75 }
76
77 }