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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.http.impl.nio.codecs;
29  
30  import java.io.IOException;
31  
32  import org.apache.http.HttpResponse;
33  import org.apache.http.message.LineFormatter;
34  import org.apache.http.nio.reactor.SessionOutputBuffer;
35  import org.apache.http.params.HttpParams;
36  import org.apache.http.util.CharArrayBuffer;
37  
38  /**
39   * Default {@link org.apache.http.nio.NHttpMessageWriter} implementation
40   * for {@link HttpResponse}s.
41   *
42   * @since 4.1
43   */
44  @SuppressWarnings("deprecation")
45  public class DefaultHttpResponseWriter extends AbstractMessageWriter<HttpResponse> {
46  
47      /**
48       * @deprecated (4.3) use
49       *   {@link DefaultHttpResponseWriter#DefaultHttpResponseWriter(SessionOutputBuffer, LineFormatter)}
50       */
51      @Deprecated
52      public DefaultHttpResponseWriter(final SessionOutputBuffer buffer,
53                                final LineFormatter formatter,
54                                final HttpParams params) {
55          super(buffer, formatter, params);
56      }
57  
58      /**
59       * Creates an instance of DefaultHttpResponseWriter.
60       *
61       * @param buffer the session output buffer.
62       * @param formatter the line formatter If {@code null}
63       *   {@link org.apache.http.message.BasicLineFormatter#INSTANCE} will be used.
64       *
65       * @since 4.3
66       */
67      public DefaultHttpResponseWriter(
68              final SessionOutputBuffer buffer,
69              final LineFormatter formatter) {
70          super(buffer, formatter);
71      }
72  
73      /**
74       * @since 4.3
75       */
76      public DefaultHttpResponseWriter(final SessionOutputBuffer buffer) {
77          super(buffer, null);
78      }
79  
80      @Override
81      protected void writeHeadLine(final HttpResponse message) throws IOException {
82          final CharArrayBuffer buffer = lineFormatter.formatStatusLine(
83                  this.lineBuf, message.getStatusLine());
84          this.sessionBuffer.writeLine(buffer);
85      }
86  
87  }