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.impl.nio;
29
30 import java.io.IOException;
31
32 import org.apache.hc.core5.http.HttpResponse;
33 import org.apache.hc.core5.http.HttpVersion;
34 import org.apache.hc.core5.http.config.Http1Config;
35 import org.apache.hc.core5.http.message.LineFormatter;
36 import org.apache.hc.core5.http.message.StatusLine;
37 import org.apache.hc.core5.util.CharArrayBuffer;
38
39 /**
40 * Default {@link org.apache.hc.core5.http.nio.NHttpMessageWriter} implementation for {@link HttpResponse}s.
41 *
42 * @since 4.1
43 */
44 public class DefaultHttpResponseWriter<T extends HttpResponse> extends AbstractMessageWriter<T> {
45
46 private final Http1Config http1Config;
47
48 /**
49 * @since 5.3
50 */
51 public DefaultHttpResponseWriter(final LineFormatter formatter, final Http1Config http1Config) {
52 super(formatter);
53 this.http1Config = http1Config != null ? http1Config : Http1Config.DEFAULT;
54 }
55
56 /**
57 * Creates an instance of DefaultHttpResponseWriter.
58 *
59 * @param formatter the line formatter If {@code null}
60 * {@link org.apache.hc.core5.http.message.BasicLineFormatter#INSTANCE} will be used.
61 *
62 * @since 4.3
63 */
64 public DefaultHttpResponseWriter(final LineFormatter formatter) {
65 this(formatter, null);
66 }
67
68 /**
69 * @since 4.3
70 */
71 public DefaultHttpResponseWriter() {
72 this(null, null);
73 }
74
75 /**
76 * Determines the HTTP protocol version to be communicated to the opposite
77 * endpoint in the message header.
78 *
79 * @since 5.3
80 */
81 protected HttpVersion protocolVersion(final T request) {
82 return http1Config.getVersion();
83 }
84
85 @Override
86 protected void writeHeadLine(final T message, final CharArrayBuffer lineBuf) throws IOException {
87 lineBuf.clear();
88 getLineFormatter().formatStatusLine(lineBuf, new StatusLine(
89 protocolVersion(message),
90 message.getCode(),
91 message.getReasonPhrase()));
92 }
93
94 }