View Javadoc
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.http;
28  
29  import org.apache.hc.core5.annotation.Contract;
30  import org.apache.hc.core5.annotation.ThreadingBehavior;
31  
32  /**
33   * @since 4.4
34   */
35  @Contract(threading = ThreadingBehavior.STATELESS)
36  public interface ExceptionListener {
37  
38      ExceptionListener NO_OP = new ExceptionListener() {
39  
40          @Override
41          public void onError(final Exception ex) {
42          }
43  
44          @Override
45          public void onError(final HttpConnection connection, final Exception ex) {
46          }
47  
48      };
49  
50      ExceptionListener STD_ERR = new ExceptionListener() {
51  
52          @Override
53          public void onError(final Exception ex) {
54              ex.printStackTrace();
55          }
56  
57          @Override
58          public void onError(final HttpConnection connection, final Exception ex) {
59              ex.printStackTrace();
60          }
61  
62      };
63  
64      void onError(Exception ex);
65  
66      void onError(HttpConnection connection, Exception ex);
67  
68  }