Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
SocketHelper |
|
| 1.5;1.5 |
1 | /** | |
2 | * Copyright (c) 2012-2014, jcabi.com | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: 1) Redistributions of source code must retain the above | |
8 | * copyright notice, this list of conditions and the following | |
9 | * disclaimer. 2) Redistributions in binary form must reproduce the above | |
10 | * copyright notice, this list of conditions and the following | |
11 | * disclaimer in the documentation and/or other materials provided | |
12 | * with the distribution. 3) Neither the name of the jcabi.com nor | |
13 | * the names of its contributors may be used to endorse or promote | |
14 | * products derived from this software without specific prior written | |
15 | * permission. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
18 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT | |
19 | * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
20 | * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | |
21 | * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
22 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
26 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
28 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 | */ | |
30 | package com.jcabi.mysql.maven.plugin; | |
31 | ||
32 | import java.io.IOException; | |
33 | import java.net.Socket; | |
34 | ||
35 | /** | |
36 | * Extracted static helper function into its own class to reduce class | |
37 | * complexity of Instances (TooManyMethods). | |
38 | * | |
39 | * <p>The class is thread-safe. | |
40 | * @author Christian Redl (github@xresearch.net) | |
41 | * @version $Id$ | |
42 | * @since 0.6 | |
43 | */ | |
44 | final class SocketHelper { | |
45 | ||
46 | /** | |
47 | * Utility class should not be instantiated. | |
48 | */ | |
49 | 0 | private SocketHelper() { } |
50 | ||
51 | /** | |
52 | * Port is open. | |
53 | * @param port The port to check | |
54 | * @return TRUE if it's open | |
55 | */ | |
56 | public static boolean isOpen(final int port) { | |
57 | boolean open; | |
58 | try { | |
59 | 21 | new Socket((String) null, port); |
60 | 0 | open = true; |
61 | 21 | } catch (final IOException ex) { |
62 | 21 | open = false; |
63 | 0 | } |
64 | 21 | return open; |
65 | } | |
66 | ||
67 | } |