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.nio.protocol;
29
30 import org.apache.http.ConnectionReuseStrategy;
31 import org.apache.http.protocol.HttpContext;
32 import org.apache.http.protocol.HttpProcessor;
33
34 /**
35 * <tt>HttpAsyncRequestExecutionHandler</tt> represents a callback interface
36 * that combines functionality of {@link HttpAsyncRequestProducer} and
37 * {@link HttpAsyncResponseConsumer} and is capable of handling logically
38 * related series of HTTP request / response exchanges.
39 *
40 * @param <T> the result type of request execution.
41 * @since 4.2
42 */
43 public interface HttpAsyncRequestExecutionHandler<T>
44 extends HttpAsyncRequestProducer, HttpAsyncResponseConsumer<T> {
45
46 /**
47 * Returns shared {@link HttpContext} instance.
48 *
49 * @return HTTP context
50 */
51 HttpContext getContext();
52
53 /**
54 * Returns {@link HttpProcessor} implementation to be used to process
55 * HTTP request and response messages for protocol compliance.
56 *
57 * @return HTTP protocol processor.
58 */
59 HttpProcessor getHttpProcessor();
60
61 /**
62 * Returns {@link ConnectionReuseStrategy} implementation to be used
63 * to determine whether or not the underlying connection can be kept alive
64 * after a particular HTTP request / response exchange.
65 *
66 * @return connection re-use strategy.
67 */
68 ConnectionReuseStrategy getConnectionReuseStrategy();
69
70 }