Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
ServletMfs |
|
| 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.manifests; | |
31 | ||
32 | import com.jcabi.log.Logger; | |
33 | import java.io.IOException; | |
34 | import java.io.InputStream; | |
35 | import java.net.URL; | |
36 | import java.util.ArrayList; | |
37 | import java.util.Collection; | |
38 | import javax.servlet.ServletContext; | |
39 | ||
40 | /** | |
41 | * Manifests in servlet context. | |
42 | * | |
43 | * Append attributes from the web application {@code MANIFEST.MF}. | |
44 | * | |
45 | * <p>You can use this class in your own | |
46 | * {@link javax.servlet.Filter} or | |
47 | * {@link javax.servlet.ServletContextListener}, | |
48 | * in order to inject {@code MANIFEST.MF} attributes to the class: | |
49 | * | |
50 | * <pre> Manifests.append(new ServletMfs(context));</pre> | |
51 | * | |
52 | * <p>The class is thread-safe. | |
53 | * | |
54 | * @author Yegor Bugayenko (yegor@tpc2.com) | |
55 | * @version $Id$ | |
56 | * @since 1.0 | |
57 | */ | |
58 | public final class ServletMfs implements Mfs { | |
59 | ||
60 | /** | |
61 | * Servlet context. | |
62 | */ | |
63 | private final transient ServletContext ctx; | |
64 | ||
65 | /** | |
66 | * Ctor. | |
67 | * @param context Context | |
68 | */ | |
69 | 0 | public ServletMfs(final ServletContext context) { |
70 | 0 | this.ctx = context; |
71 | 0 | } |
72 | ||
73 | @Override | |
74 | public Collection<InputStream> fetch() throws IOException { | |
75 | 0 | final URL main = this.ctx.getResource("/META-INF/MANIFEST.MF"); |
76 | 0 | final Collection<InputStream> streams = new ArrayList<InputStream>(1); |
77 | 0 | if (main == null) { |
78 | 0 | Logger.warn(this, "MANIFEST.MF not found in WAR package"); |
79 | } else { | |
80 | 0 | streams.add(main.openStream()); |
81 | } | |
82 | 0 | return streams; |
83 | } | |
84 | ||
85 | } |