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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 org.apache.hc.core5.http.Header;
31  import org.apache.hc.core5.http.ParseException;
32  import org.apache.hc.core5.util.Args;
33  import org.apache.hc.core5.util.CharArrayBuffer;
34  
35  /**
36   * Extension of {@link org.apache.hc.core5.http.message.BasicLineParser} that defers parsing of
37   * header values. Header value is parsed only if accessed with
38   * {@link org.apache.hc.core5.http.Header#getValue()}.
39   * <p>
40   * This parser unlike {@link BasicLineParser} and {@link LazyLineParser}
41   * will not reject headers containing whitespaces between the header field
42   * name and colon.
43   * <p>
44   * This parser should be used to parse response messages on the client server
45   * or to parse both request and response messages by an intermediary (proxy).
46   *
47   * @since 5.0
48   */
49  public class LazyLaxLineParser extends BasicLineParser {
50  
51      public final static LazyLaxLineParserzyLaxLineParser.html#LazyLaxLineParser">LazyLaxLineParser INSTANCE = new LazyLaxLineParser();
52  
53      @Override
54      public Header parseHeader(final CharArrayBuffer buffer) throws ParseException {
55          Args.notNull(buffer, "Char array buffer");
56  
57          return new BufferedHeader(buffer, false);
58      }
59  
60  }