View Javadoc
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.http2.impl.nio;
29  
30  import org.apache.hc.core5.annotation.Contract;
31  import org.apache.hc.core5.annotation.Internal;
32  import org.apache.hc.core5.annotation.ThreadingBehavior;
33  import org.apache.hc.core5.http.impl.nio.ServerHttp1StreamDuplexerFactory;
34  import org.apache.hc.core5.http.nio.ssl.TlsStrategy;
35  import org.apache.hc.core5.http2.HttpVersionPolicy;
36  import org.apache.hc.core5.reactor.IOEventHandlerFactory;
37  import org.apache.hc.core5.reactor.ProtocolIOSession;
38  import org.apache.hc.core5.util.Args;
39  import org.apache.hc.core5.util.Timeout;
40  
41  /**
42   * {@link ServerHttpProtocolNegotiator} factory.
43   *
44   * @since 5.0
45   */
46  @Contract(threading = ThreadingBehavior.IMMUTABLE_CONDITIONAL)
47  @Internal
48  public class ServerHttpProtocolNegotiatorFactory implements IOEventHandlerFactory {
49  
50      private final ServerHttp1StreamDuplexerFactory http1StreamDuplexerFactory;
51      private final ServerH2StreamMultiplexerFactory http2StreamMultiplexerFactory;
52      private final HttpVersionPolicy versionPolicy;
53      private final TlsStrategy tlsStrategy;
54      private final Timeout handshakeTimeout;
55  
56      public ServerHttpProtocolNegotiatorFactory(
57              final ServerHttp1StreamDuplexerFactory http1StreamDuplexerFactory,
58              final ServerH2StreamMultiplexerFactory http2StreamMultiplexerFactory,
59              final HttpVersionPolicy versionPolicy,
60              final TlsStrategy tlsStrategy,
61              final Timeout handshakeTimeout) {
62          this.http1StreamDuplexerFactory = Args.notNull(http1StreamDuplexerFactory, "HTTP/1.1 stream handler factory");
63          this.http2StreamMultiplexerFactory = Args.notNull(http2StreamMultiplexerFactory, "HTTP/2 stream handler factory");
64          this.versionPolicy = versionPolicy != null ? versionPolicy : HttpVersionPolicy.NEGOTIATE;
65          this.tlsStrategy = tlsStrategy;
66          this.handshakeTimeout = handshakeTimeout;
67      }
68  
69      @Override
70      public ServerHttpProtocolNegotiator createHandler(final ProtocolIOSession ioSession, final Object attachment) {
71          if (tlsStrategy != null) {
72              tlsStrategy.upgrade(
73                      ioSession,
74                      null,
75                      ioSession.getLocalAddress(),
76                      ioSession.getRemoteAddress(),
77                      attachment != null ? attachment : versionPolicy,
78                      handshakeTimeout);
79          }
80          return new ServerHttpProtocolNegotiator(ioSession, http1StreamDuplexerFactory, http2StreamMultiplexerFactory, versionPolicy);
81      }
82  
83  }