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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.hc.core5.http.message;
29  
30  import java.io.Serializable;
31  
32  import org.apache.hc.core5.annotation.Contract;
33  import org.apache.hc.core5.annotation.ThreadingBehavior;
34  import org.apache.hc.core5.http.HttpResponse;
35  import org.apache.hc.core5.http.HttpVersion;
36  import org.apache.hc.core5.http.ProtocolVersion;
37  import org.apache.hc.core5.util.Args;
38  
39  /**
40   * HTTP/1.1 status line.
41   *
42   * @since 4.0
43   */
44  @Contract(threading = ThreadingBehavior.IMMUTABLE)
45  public final class StatusLine implements Serializable {
46  
47      private static final long serialVersionUID = -2443303766890459269L;
48  
49      /** The protocol version. */
50      private final ProtocolVersion protoVersion;
51  
52      /** The status code. */
53      private final int statusCode;
54  
55      /** The reason phrase. */
56      private final String reasonPhrase;
57  
58      public StatusLine(final HttpResponse response) {
59          super();
60          Args.notNull(response, "Response");
61          this.protoVersion = response.getVersion() != null ? response.getVersion() : HttpVersion.HTTP_1_1;
62          this.statusCode = response.getCode();
63          this.reasonPhrase = response.getReasonPhrase();
64      }
65      /**
66       * Creates a new status line with the given version, status, and reason.
67       *
68       * @param version           the protocol version of the response
69       * @param statusCode        the status code of the response
70       * @param reasonPhrase      the reason phrase to the status code, or
71       *                          {@code null}
72       */
73      public StatusLine(final ProtocolVersion version, final int statusCode,
74                        final String reasonPhrase) {
75          super();
76          this.statusCode = Args.notNegative(statusCode, "Status code");
77          this.protoVersion = version != null ? version : HttpVersion.HTTP_1_1;
78          this.reasonPhrase = reasonPhrase;
79      }
80  
81      public int getStatusCode() {
82          return this.statusCode;
83      }
84  
85      public ProtocolVersion getProtocolVersion() {
86          return this.protoVersion;
87      }
88  
89      public String getReasonPhrase() {
90          return this.reasonPhrase;
91      }
92  
93      @Override
94      public String toString() {
95          final StringBuilder buf = new StringBuilder();
96          buf.append(this.protoVersion).append(" ").append(this.statusCode).append(" ");
97          if (this.reasonPhrase != null) {
98              buf.append(this.reasonPhrase);
99          }
100         return buf.toString();
101     }
102 
103 }