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.http.nio.protocol;
29
30 import java.io.IOException;
31
32 import org.apache.http.HttpException;
33 import org.apache.http.nio.NHttpConnection;
34
35 /**
36 * Event listener used by the HTTP protocol layer to report fatal exceptions
37 * and events that may need to be logged using a logging toolkit.
38 *
39 * @since 4.0
40 *
41 * @deprecated (4.2) do not use
42 */
43 @Deprecated
44 public interface EventListener {
45
46 /**
47 * Triggered when an I/O error caused a connection to be terminated.
48 *
49 * @param ex the I/O exception.
50 * @param conn the connection.
51 */
52 void fatalIOException(IOException ex, NHttpConnection conn);
53
54 /**
55 * Triggered when an HTTP protocol error caused a connection to be
56 * terminated.
57 *
58 * @param ex the protocol exception.
59 * @param conn the connection.
60 */
61 void fatalProtocolException(HttpException ex, NHttpConnection conn);
62
63 /**
64 * Triggered when a new connection has been established.
65 *
66 * @param conn the connection.
67 */
68 void connectionOpen(NHttpConnection conn);
69
70 /**
71 * Triggered when a connection has been terminated.
72 *
73 * @param conn the connection.
74 */
75 void connectionClosed(NHttpConnection conn);
76
77 /**
78 * Triggered when a connection has timed out.
79 *
80 * @param conn the connection.
81 */
82 void connectionTimeout(NHttpConnection conn);
83
84 }