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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  package org.apache.http.impl.client.cache;
28  
29  import org.apache.http.impl.execchain.ClientExecChain;
30  
31  /**
32   * We are a conditionally-compliant HTTP/1.1 client with a cache. However, a lot of the rules for
33   * proxies apply to us, as far as proper operation of the requests that pass through us. Generally
34   * speaking, we want to make sure that any response returned from our HttpClient.execute() methods
35   * is conditionally compliant with the rules for an HTTP/1.1 server, and that any requests we pass
36   * downstream to the backend HttpClient are are conditionally compliant with the rules for an
37   * HTTP/1.1 client.
38   */
39  public class TestAsyncProtocolRequirements extends TestProtocolRequirements {
40  
41      @Override
42      protected ClientExecChain createCachingExecChain(
43              final ClientExecChain backend,
44              final HttpCache cache,
45              final CacheConfig config) {
46          return new CachingHttpAsyncClientExecChain(backend, cache, config);
47      }
48  
49      @Override
50      protected boolean supportsRangeAndContentRangeHeaders(final ClientExecChain impl) {
51          return impl instanceof CachingHttpAsyncClientExecChain
52                  && ((CachingHttpAsyncClientExecChain) impl)
53                  .supportsRangeAndContentRangeHeaders();
54      }
55  }