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 package org.apache.hc.core5.http2.nio.support;
28
29 import org.apache.hc.core5.function.Supplier;
30 import org.apache.hc.core5.http.HttpException;
31 import org.apache.hc.core5.http.HttpRequest;
32 import org.apache.hc.core5.http.HttpRequestMapper;
33 import org.apache.hc.core5.http.MisdirectedRequestException;
34 import org.apache.hc.core5.http.nio.AsyncPushConsumer;
35 import org.apache.hc.core5.http.nio.HandlerFactory;
36 import org.apache.hc.core5.http.protocol.HttpContext;
37 import org.apache.hc.core5.util.Args;
38
39 /**
40 * Factory for {@link AsyncPushConsumer} instances that make use
41 * of {@link HttpRequestMapper} to dispatch
42 * the request to a particular {@link AsyncPushConsumer} for processing.
43 *
44 * @since 5.0
45 */
46 public final class DefaultAsyncPushConsumerFactory implements HandlerFactory<AsyncPushConsumer> {
47
48 private final HttpRequestMapper<Supplier<AsyncPushConsumer>> mapper;
49
50 public DefaultAsyncPushConsumerFactory(final HttpRequestMapper<Supplier<AsyncPushConsumer>> mapper) {
51 this.mapper = Args.notNull(mapper, "Request handler mapper");
52 }
53
54 @Override
55 public AsyncPushConsumer create(final HttpRequest request, final HttpContext context) throws HttpException {
56 try {
57 final Supplier<AsyncPushConsumer> supplier = mapper.resolve(request, context);
58 return supplier != null ? supplier.get() : null;
59 } catch (final MisdirectedRequestException ex) {
60 return null;
61 }
62 }
63 }