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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.io.support;
29  
30  import java.io.IOException;
31  
32  import org.apache.hc.core5.http.ClassicHttpRequest;
33  import org.apache.hc.core5.http.ClassicHttpResponse;
34  import org.apache.hc.core5.http.HttpException;
35  import org.apache.hc.core5.http.HttpRequestMapper;
36  import org.apache.hc.core5.http.HttpResponseFactory;
37  import org.apache.hc.core5.http.HttpStatus;
38  import org.apache.hc.core5.http.impl.io.DefaultClassicHttpResponseFactory;
39  import org.apache.hc.core5.http.io.HttpRequestHandler;
40  import org.apache.hc.core5.http.io.HttpServerRequestHandler;
41  import org.apache.hc.core5.http.protocol.HttpContext;
42  import org.apache.hc.core5.util.Args;
43  
44  /**
45   * @since 5.0
46   */
47  public class BasicHttpServerRequestHandler implements HttpServerRequestHandler {
48  
49      private final HttpRequestMapper<HttpRequestHandler> handlerMapper;
50      private final HttpResponseFactory<ClassicHttpResponse> responseFactory;
51  
52      public BasicHttpServerRequestHandler(
53              final HttpRequestMapper<HttpRequestHandler> handlerMapper,
54              final HttpResponseFactory<ClassicHttpResponse> responseFactory) {
55          this.handlerMapper = Args.notNull(handlerMapper, "Handler mapper");
56          this.responseFactory = responseFactory != null ? responseFactory : DefaultClassicHttpResponseFactory.INSTANCE;
57      }
58  
59      public BasicHttpServerRequestHandler(final HttpRequestMapper<HttpRequestHandler> handlerMapper) {
60          this(handlerMapper, null);
61      }
62  
63      @Override
64      public void handle(
65              final ClassicHttpRequest request,
66              final ResponseTrigger responseTrigger,
67              final HttpContext context) throws HttpException, IOException {
68          final ClassicHttpResponse response = responseFactory.newHttpResponse(HttpStatus.SC_OK);
69          final HttpRequestHandler handler = handlerMapper != null ? handlerMapper.resolve(request, context) : null;
70          if (handler != null) {
71              handler.handle(request, response, context);
72          } else {
73              response.setCode(HttpStatus.SC_NOT_IMPLEMENTED);
74          }
75          responseTrigger.submitResponse(response);
76      }
77  
78  }