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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.eclipse.aether.spi.connector.transport.http;
20  
21  import java.util.regex.Pattern;
22  
23  /**
24   * Some shared HTTP constants.
25   *
26   * @since 2.0.0
27   */
28  public final class HttpConstants {
29      private HttpConstants() {}
30  
31      public static final int MULTIPLE_CHOICES = 300;
32  
33      public static final int NOT_FOUND = 404;
34  
35      public static final int PRECONDITION_FAILED = 412;
36  
37      public static final String ACCEPT_ENCODING = "Accept-Encoding";
38  
39      public static final String CACHE_CONTROL = "Cache-Control";
40  
41      public static final String CONTENT_LENGTH = "Content-Length";
42  
43      public static final String CONTENT_RANGE = "Content-Range";
44  
45      public static final String ETAG = "ETag";
46  
47      public static final String IF_UNMODIFIED_SINCE = "If-Unmodified-Since";
48  
49      public static final String RANGE = "Range";
50  
51      public static final String USER_AGENT = "User-Agent";
52  
53      public static final String LAST_MODIFIED = "Last-Modified";
54  
55      public static final Pattern CONTENT_RANGE_PATTERN =
56              Pattern.compile("\\s*bytes\\s+([0-9]+)\\s*-\\s*([0-9]+)\\s*/.*");
57  }