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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.search.api.transport;
20  
21  import java.io.Closeable;
22  import java.io.IOException;
23  import java.io.InputStream;
24  import java.util.Map;
25  
26  /**
27   * A trivial "transport abstraction" to make possible pluggable implementations. Most obviously leans toward HTTP,
28   * but is not limited to.
29   *
30   * @since TBD
31   */
32  public interface Transport {
33      /**
34       * Trivial response.
35       */
36      interface Response extends Closeable {
37          int getCode();
38  
39          Map<String, String> getHeaders();
40  
41          InputStream getBody();
42      }
43  
44      /**
45       * This method should issue HTTP GET requests using {@code serviceUri} and return response.
46       */
47      Response get(String serviceUri, Map<String, String> headers) throws IOException;
48  
49      /**
50       * This method should issue HTTP HEAD requests using {@code serviceUri} and return response.
51       */
52      Response head(String serviceUri, Map<String, String> headers) throws IOException;
53  }