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1 /* |
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2 * ==================================================================== |
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3 * Licensed to the Apache Software Foundation (ASF) under one |
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4 * or more contributor license agreements. See the NOTICE file |
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5 * distributed with this work for additional information |
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6 * regarding copyright ownership. The ASF licenses this file |
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7 * to you under the Apache License, Version 2.0 (the |
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8 * "License"); you may not use this file except in compliance |
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9 * with the License. You may obtain a copy of the License at |
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10 * |
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11 * http://www.apache.org/licenses/LICENSE-2.0 |
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12 * |
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13 * Unless required by applicable law or agreed to in writing, |
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14 * software distributed under the License is distributed on an |
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15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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16 * KIND, either express or implied. See the License for the |
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17 * specific language governing permissions and limitations |
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18 * under the License. |
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19 * ==================================================================== |
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20 * |
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21 * This software consists of voluntary contributions made by many |
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22 * individuals on behalf of the Apache Software Foundation. For more |
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23 * information on the Apache Software Foundation, please see |
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24 * <http://www.apache.org/>. |
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25 * |
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26 */ |
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27 |
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28 package ch.boye.httpclientandroidlib.client.methods; |
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29 |
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30 import java.net.URI; |
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31 |
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32 import ch.boye.httpclientandroidlib.annotation.NotThreadSafe; |
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33 |
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34 /** |
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35 * HTTP HEAD method. |
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36 * <p> |
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37 * The HTTP HEAD method is defined in section 9.4 of |
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38 * <a href="http://www.ietf.org/rfc/rfc2616.txt">RFC2616</a>: |
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39 * <blockquote> |
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40 * The HEAD method is identical to GET except that the server MUST NOT |
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41 * return a message-body in the response. The metainformation contained |
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42 * in the HTTP headers in response to a HEAD request SHOULD be identical |
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43 * to the information sent in response to a GET request. This method can |
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44 * be used for obtaining metainformation about the entity implied by the |
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45 * request without transferring the entity-body itself. This method is |
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46 * often used for testing hypertext links for validity, accessibility, |
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47 * and recent modification. |
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48 * </blockquote> |
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49 * </p> |
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50 * |
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51 * @since 4.0 |
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52 */ |
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53 @NotThreadSafe |
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54 public class HttpHead extends HttpRequestBase { |
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55 |
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56 public final static String METHOD_NAME = "HEAD"; |
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57 |
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58 public HttpHead() { |
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59 super(); |
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60 } |
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61 |
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62 public HttpHead(final URI uri) { |
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63 super(); |
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64 setURI(uri); |
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65 } |
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66 |
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67 /** |
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68 * @throws IllegalArgumentException if the uri is invalid. |
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69 */ |
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70 public HttpHead(final String uri) { |
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71 super(); |
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72 setURI(URI.create(uri)); |
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73 } |
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74 |
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75 @Override |
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76 public String getMethod() { |
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77 return METHOD_NAME; |
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78 } |
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79 |
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80 } |