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 org.apache.http.HttpException;
31 import org.apache.http.HttpResponse;
32 import org.apache.http.HttpResponseFactory;
33 import org.apache.http.ParseException;
34 import org.apache.http.StatusLine;
35 import org.apache.http.config.MessageConstraints;
36 import org.apache.http.impl.DefaultHttpResponseFactory;
37 import org.apache.http.message.LineParser;
38 import org.apache.http.message.ParserCursor;
39 import org.apache.http.nio.reactor.SessionInputBuffer;
40 import org.apache.http.params.HttpParams;
41 import org.apache.http.util.Args;
42 import org.apache.http.util.CharArrayBuffer;
43
44 /**
45 * Default {@link org.apache.http.nio.NHttpMessageParser} implementation
46 * for {@link HttpResponse}s.
47 *
48 * @since 4.1
49 */
50 @SuppressWarnings("deprecation")
51 public class DefaultHttpResponseParser extends AbstractMessageParser<HttpResponse> {
52
53 private final HttpResponseFactory responseFactory;
54
55 /**
56 * @deprecated (4.3) use
57 * {@link DefaultHttpResponseParser#DefaultHttpResponseParser(
58 * SessionInputBuffer, LineParser, HttpResponseFactory, MessageConstraints)}
59 */
60 @Deprecated
61 public DefaultHttpResponseParser(
62 final SessionInputBuffer buffer,
63 final LineParser parser,
64 final HttpResponseFactory responseFactory,
65 final HttpParams params) {
66 super(buffer, parser, params);
67 Args.notNull(responseFactory, "Response factory");
68 this.responseFactory = responseFactory;
69 }
70
71 /**
72 * Creates an instance of DefaultHttpResponseParser.
73 *
74 * @param buffer the session input buffer.
75 * @param parser the line parser. If {@code null}
76 * {@link org.apache.http.message.BasicLineParser#INSTANCE} will be used.
77 * @param responseFactory the response factory. If {@code null}
78 * {@link DefaultHttpResponseFactory#INSTANCE} will be used.
79 * @param constraints Message constraints. If {@code null}
80 * {@link MessageConstraints#DEFAULT} will be used.
81 *
82 * @since 4.3
83 */
84 public DefaultHttpResponseParser(
85 final SessionInputBuffer buffer,
86 final LineParser parser,
87 final HttpResponseFactory responseFactory,
88 final MessageConstraints constraints) {
89 super(buffer, parser, constraints);
90 this.responseFactory = responseFactory != null ? responseFactory :
91 DefaultHttpResponseFactory.INSTANCE;
92 }
93
94 /**
95 * @since 4.3
96 */
97 public DefaultHttpResponseParser(final SessionInputBuffer buffer, final MessageConstraints constraints) {
98 this(buffer, null, null, constraints);
99 }
100
101 /**
102 * @since 4.3
103 */
104 public DefaultHttpResponseParser(final SessionInputBuffer buffer) {
105 this(buffer, null);
106 }
107
108 @Override
109 protected HttpResponse createMessage(final CharArrayBuffer buffer)
110 throws HttpException, ParseException {
111 final ParserCursor cursor = new ParserCursor(0, buffer.length());
112 final StatusLine statusline = lineParser.parseStatusLine(buffer, cursor);
113 return this.responseFactory.newHttpResponse(statusline, null);
114 }
115
116 }