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 java.io.IOException;
31
32 import org.apache.http.HttpException;
33 import org.apache.http.HttpRequest;
34 import org.apache.http.annotation.ThreadingBehavior;
35 import org.apache.http.annotation.Contract;
36 import org.apache.http.protocol.HttpContext;
37 import org.apache.http.protocol.HttpRequestHandler;
38 import org.apache.http.util.Args;
39
40 /**
41 * Basic implementation of {@link HttpAsyncRequestHandler} that delegates
42 * the process of request handling to a {@link HttpRequestHandler}. Please note
43 * that this handler buffers request content in memory and should be used for
44 * relatively small request messages.
45 *
46 * @since 4.2
47 */
48 @Contract(threading = ThreadingBehavior.IMMUTABLE_CONDITIONAL)
49 public class BasicAsyncRequestHandler implements HttpAsyncRequestHandler<HttpRequest> {
50
51 private final HttpRequestHandler handler;
52
53 public BasicAsyncRequestHandler(final HttpRequestHandler handler) {
54 super();
55 Args.notNull(handler, "Request handler");
56 this.handler = handler;
57 }
58
59 @Override
60 public HttpAsyncRequestConsumer<HttpRequest> processRequest(final HttpRequest request,
61 final HttpContext context) {
62 return new BasicAsyncRequestConsumer();
63 }
64
65 @Override
66 public void handle(
67 final HttpRequest request,
68 final HttpAsyncExchange httpexchange,
69 final HttpContext context) throws HttpException, IOException {
70 this.handler.handle(request, httpexchange.getResponse(), context);
71 httpexchange.submitResponse();
72 }
73
74 }