1 //
2 // ========================================================================
3 // Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.io;
20
21 import java.io.IOException;
22 import java.util.Map;
23
24 import org.eclipse.jetty.util.log.Log;
25 import org.eclipse.jetty.util.log.Logger;
26
27 /**
28 * Factory for client-side {@link Connection} instances.
29 */
30 public interface ClientConnectionFactory
31 {
32 /**
33 *
34 * @param endPoint the {@link org.eclipse.jetty.io.EndPoint} to link the newly created connection to
35 * @param context the context data to create the connection
36 * @return a new {@link Connection}
37 * @throws IOException if the connection cannot be created
38 */
39 public Connection newConnection(EndPoint endPoint, Map<String, Object> context) throws IOException;
40
41 public static class Helper
42 {
43 private static Logger LOG = Log.getLogger(Helper.class);
44
45 private Helper()
46 {
47 }
48
49 /**
50 * Replaces the given {@code oldConnection} with the given {@code newConnection} on the
51 * {@link EndPoint} associated with {@code oldConnection}, performing connection lifecycle management.
52 * <p />
53 * The {@code oldConnection} will be closed by invoking {@link org.eclipse.jetty.io.Connection#onClose()}
54 * and the {@code newConnection} will be opened by invoking {@link org.eclipse.jetty.io.Connection#onOpen()}.
55 * @param oldConnection the old connection to replace
56 * @param newConnection the new connection replacement
57 */
58 public static void replaceConnection(Connection oldConnection, Connection newConnection)
59 {
60 close(oldConnection);
61 oldConnection.getEndPoint().setConnection(newConnection);
62 open(newConnection);
63 }
64
65 private static void open(Connection connection)
66 {
67 try
68 {
69 connection.onOpen();
70 }
71 catch (Throwable x)
72 {
73 LOG.debug(x);
74 }
75 }
76
77 private static void close(Connection connection)
78 {
79 try
80 {
81 connection.onClose();
82 }
83 catch (Throwable x)
84 {
85 LOG.debug(x);
86 }
87 }
88 }
89 }