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1   /*
2    * Copyright 2012 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package io.netty.handler.codec.http;
17  
18  /**
19   * The default {@link HttpMessage} implementation.
20   */
21  public abstract class DefaultHttpMessage extends DefaultHttpObject implements HttpMessage {
22      private static final int HASH_CODE_PRIME = 31;
23      private HttpVersion version;
24      private final HttpHeaders headers;
25  
26      /**
27       * Creates a new instance.
28       */
29      protected DefaultHttpMessage(final HttpVersion version) {
30          this(version, true, false);
31      }
32  
33      /**
34       * Creates a new instance.
35       */
36      protected DefaultHttpMessage(final HttpVersion version, boolean validateHeaders, boolean singleHeaderFields) {
37          if (version == null) {
38              throw new NullPointerException("version");
39          }
40          this.version = version;
41          headers = new DefaultHttpHeaders(validateHeaders, singleHeaderFields);
42      }
43  
44      @Override
45      public HttpHeaders headers() {
46          return headers;
47      }
48  
49      @Override
50      public HttpVersion protocolVersion() {
51          return version;
52      }
53  
54      @Override
55      public int hashCode() {
56          int result = 1;
57          result = HASH_CODE_PRIME * result + headers.hashCode();
58          result = HASH_CODE_PRIME * result + version.hashCode();
59          result = HASH_CODE_PRIME * result + super.hashCode();
60          return result;
61      }
62  
63      @Override
64      public boolean equals(Object o) {
65          if (!(o instanceof DefaultHttpMessage)) {
66              return false;
67          }
68  
69          DefaultHttpMessage other = (DefaultHttpMessage) o;
70  
71          return headers().equals(other.headers()) &&
72                 protocolVersion().equals(other.protocolVersion()) &&
73                 super.equals(o);
74      }
75  
76      @Override
77      public HttpMessage setProtocolVersion(HttpVersion version) {
78          if (version == null) {
79              throw new NullPointerException("version");
80          }
81          this.version = version;
82          return this;
83      }
84  }