1/*
2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/impl/DefaultHttpRequestFactory.java $
3 * $Revision: 618367 $
4 * $Date: 2008-02-04 10:26:06 -0800 (Mon, 04 Feb 2008) $
5 *
6 * ====================================================================
7 * Licensed to the Apache Software Foundation (ASF) under one
8 * or more contributor license agreements.  See the NOTICE file
9 * distributed with this work for additional information
10 * regarding copyright ownership.  The ASF licenses this file
11 * to you under the Apache License, Version 2.0 (the
12 * "License"); you may not use this file except in compliance
13 * with the License.  You may obtain a copy of the License at
14 *
15 *   http://www.apache.org/licenses/LICENSE-2.0
16 *
17 * Unless required by applicable law or agreed to in writing,
18 * software distributed under the License is distributed on an
19 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
20 * KIND, either express or implied.  See the License for the
21 * specific language governing permissions and limitations
22 * under the License.
23 * ====================================================================
24 *
25 * This software consists of voluntary contributions made by many
26 * individuals on behalf of the Apache Software Foundation.  For more
27 * information on the Apache Software Foundation, please see
28 * <http://www.apache.org/>.
29 *
30 */
31
32package org.apache.http.impl;
33
34import org.apache.http.HttpRequest;
35import org.apache.http.HttpRequestFactory;
36import org.apache.http.MethodNotSupportedException;
37import org.apache.http.RequestLine;
38import org.apache.http.message.BasicHttpEntityEnclosingRequest;
39import org.apache.http.message.BasicHttpRequest;
40
41/**
42 * Default implementation of a factory for creating request objects.
43 *
44 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
45 *
46 * @version $Revision: 618367 $
47 *
48 * @since 4.0
49 */
50public class DefaultHttpRequestFactory implements HttpRequestFactory {
51
52    private static final String[] RFC2616_COMMON_METHODS = {
53        "GET"
54    };
55
56    private static final String[] RFC2616_ENTITY_ENC_METHODS = {
57        "POST",
58        "PUT"
59    };
60
61    private static final String[] RFC2616_SPECIAL_METHODS = {
62        "HEAD",
63        "OPTIONS",
64        "DELETE",
65        "TRACE"
66    };
67
68
69    public DefaultHttpRequestFactory() {
70        super();
71    }
72
73    private static boolean isOneOf(final String[] methods, final String method) {
74        for (int i = 0; i < methods.length; i++) {
75            if (methods[i].equalsIgnoreCase(method)) {
76                return true;
77            }
78        }
79        return false;
80    }
81
82    public HttpRequest newHttpRequest(final RequestLine requestline)
83            throws MethodNotSupportedException {
84        if (requestline == null) {
85            throw new IllegalArgumentException("Request line may not be null");
86        }
87        String method = requestline.getMethod();
88        if (isOneOf(RFC2616_COMMON_METHODS, method)) {
89            return new BasicHttpRequest(requestline);
90        } else if (isOneOf(RFC2616_ENTITY_ENC_METHODS, method)) {
91            return new BasicHttpEntityEnclosingRequest(requestline);
92        } else if (isOneOf(RFC2616_SPECIAL_METHODS, method)) {
93            return new BasicHttpRequest(requestline);
94        } else {
95            throw new MethodNotSupportedException(method +  " method not supported");
96        }
97    }
98
99    public HttpRequest newHttpRequest(final String method, final String uri)
100            throws MethodNotSupportedException {
101        if (isOneOf(RFC2616_COMMON_METHODS, method)) {
102            return new BasicHttpRequest(method, uri);
103        } else if (isOneOf(RFC2616_ENTITY_ENC_METHODS, method)) {
104            return new BasicHttpEntityEnclosingRequest(method, uri);
105        } else if (isOneOf(RFC2616_SPECIAL_METHODS, method)) {
106            return new BasicHttpRequest(method, uri);
107        } else {
108            throw new MethodNotSupportedException(method
109                    + " method not supported");
110        }
111    }
112
113}
114