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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.HttpException;
34  import org.apache.hc.core5.http.io.HttpFilterChain;
35  import org.apache.hc.core5.http.io.HttpFilterHandler;
36  import org.apache.hc.core5.http.protocol.HttpContext;
37  
38  public final class HttpServerFilterChainElement {
39  
40      private final HttpFilterHandler handler;
41      private final HttpServerFilterChainElement next;
42      private final HttpFilterChain filterChain;
43  
44      public HttpServerFilterChainElement(final HttpFilterHandler handler, final HttpServerFilterChainElement next) {
45          this.handler = handler;
46          this.next = next;
47          this.filterChain = new HttpFilterChain() {
48  
49              @Override
50              public void proceed(
51                      final ClassicHttpRequest request,
52                      final ResponseTrigger responseTrigger,
53                      final HttpContext context) throws HttpException, IOException {
54                  next.handle(request, responseTrigger, context);
55              }
56          };
57      }
58  
59      public void handle(
60              final ClassicHttpRequest request,
61              final HttpFilterChain.ResponseTrigger responseTrigger,
62              final HttpContext context) throws IOException, HttpException {
63          handler.handle(request, responseTrigger, context, filterChain);
64      }
65  
66      @Override
67      public String toString() {
68          return "{" +
69                  "handler=" + handler.getClass() +
70                  ", next=" + (next != null ? next.handler.getClass() : "null") +
71                  '}';
72      }
73  
74  }